CN2191772Y - Fully automatic cleaning drum type teaching blackboard - Google Patents

Abstract

The utility model relates to a full-automatic cleaning drum-rolling teaching board, which belongs to the teaching blackboard and is composed of a frame, a writing band board which can be rolled and wrapped, an upper and a lower rolling drums of the writing band board which can be rolled and wrapped, a cleaning roller, a liquid container of a cleaning container and a driving mechanism composed of an electric motor, a belt pulley transmission mechanism, a gear speed reducer, a transmission shaft and a sprocket transmission mechanism. The writing band board is supported and tightened by a rolling shaft and a part of a board surface attaches on a front edge frame of the frame, forming the writing board surface of the teaching board. The replacement of the writing board surface and the reproduction and the automatic cleanness of the writings on the blackboard can be carried out by electricity or by hand when the writings on the blackboard are cleaned, no dust flying phenomenon occurs.

Description

Fully automatic cleaning drum type teaching blackboard

The utility model relates to a kind of blackboard for education.

Blackboard is the indispensable teaching aid of school instruction, the blackboard that teaching is at present used still is traditional structural shape, the plate face of blackboard is fixed, plate is limited, have to the writing on the blackboard of saying content is wiped in order to write new writing on the blackboard when serving as a teacher the teaching writing on the blackboard and writing full plate face, usually be to write the limit to wipe while saying when therefore the teacher carries out classroom instruction, a class gets off very tired.Particularly obliterating writing on the blackboard, dust from flying are extremely unhygienic, often this healthy very harmful to teachers and students in the past.Because writing on the blackboard is not usually also just noted the student and wiped, thereby has influenced student's review after class and consolidation, this is totally unfavorable to guaranteeing quality of instruction.

It is removable that the purpose of this utility model provides a kind of clipboard face, and writing on the blackboard can store and can reproduce and be beneficial to that the student reviews with afterthought after class, and writing on the blackboard can be cleaned automatically and be removed, and cleans writing on the blackboard and does not have the automatic washing roll type board of education that the dust from flying phenomenon takes place.

But the automatic washing board of education is write the upper and lower cylinder of band plate, cleaning roller, cleaning fluid tank, is driven the driving mechanism that chain wheel driving mechanism that upper and lower cylinder, cleaning roller rotate constitutes by drive motors, pulley transmission mechanism, gear reduction unit, power transmission shaft, power transmission shaft and constitute by the write band plate, circumvolution of frame circumvolution.Writing the band plate two ends is separately fixed on the upper and lower cylinder, write band plate and tightened by the roller support by writing band plate drive rotation that is fixed on the frame, the part plate face of writing band plate is attached to frame front bezel place and exposes the clipboard face that frame constitutes board of education outward.Cleaning roller part roll surface is immersed in the cleaning fluid, cleaning roller expose cleaning fluid roll surface the part roll surface with write band plate and hold out against and contact.Drive motors connects by pulley transmission mechanism and gear reduction unit, and gear reduction unit and propeller shaft couplings also drive its rotation.Chain wheel driving mechanism has by being fixed on sprocket wheel on the power transmission shaft, being fixed on the ratchet-gear wheel on the drum shaft, the sprocket wheel reduction gearing mechanism that driving chain constitutes, by being fixed on sprocket wheel on the power transmission shaft, being fixed on the reverse ratchet-gear wheel on the bottom roll axle, the sprocket wheel reduction gearing mechanism that driving chain constitutes, by the sprocket wheel that is fixed on sprocket wheel on the power transmission shaft, is fixed on the reverse ratchet-gear wheel that cleans on the roll shaft, driving chain the constitutes mechanism of driving up.

Go up cylinder when motor is just changeing and drive rotation by chain wheel driving mechanism by power transmission shaft, bottom roll, the reverse ratchet-gear wheel idle running of cleaning roller, bottom roll, cleaning roller are being write servo-actuated under band plate tractive and the drive.Power transmission shaft drives bottom roll, cleans axle rotation, last cylinder servo-actuated by chain wheel driving mechanism during the motor counter-rotating.

In order to prevent that clipboard face plate face when writing writing on the blackboard of writing band plate from forward and backward vibration taking place, clipboard face rear is equipped with the rigidity backing plate, and the rigidity backing plate is fixed on the frame.On frame two frames pinch rollers is housed, the clipboard face goes out pinch rollers and compresses and abut on the rigidity backing plate.

Write band plate and excessively will write the band plate damage for preventing upper and lower cylinder circumvolution, write the band plate side spacing group of retaining is housed, on the frame frame limit switch is housed, write band plate when upper and lower cylinder circumvolution and dial to a certain degree spacing group of retaining and push away limit switch and make the motor stall, upper and lower cylinder no longer continues to twine writes band plate.

Further improving of automatic washing roll type board of education is that hand-cranking running gear is arranged, so that board of education can normally be used when having a power failure.Hand-cranking running gear is by crank, umbrella gear transmission mechanism, driving shaft, clutch constitute, crank connects by umbrella gear transmission mechanism and driving shaft, driving shaft connects by the drive sprocket axle of clutch and pulley transmission mechanism, and clutches engaged makes upper and lower cylinder rotation the clipboard face be changed or the writing on the blackboard cleaning is removed by driving shaft by the crank driven by shaking during power failure.When electronic clutch is opened, driving mechanism carries out the mobile replacing of clipboard face by motor-driven or the writing on the blackboard cleaning is removed.

For ease of checking and maintenance that the frame of automatic washing board of education is made of forward and backward frame, the hinged collapsible or expansion of forward and backward frame.

The removable replacing of clipboard face of automatic washing roll type board of education, the writing on the blackboard on the plate face can store and reproduction is convenient to that the student reviews after class and afterthought classroom notes, the assurance of favourable quality of instruction and student's study.The obliterating writing on the blackboard is carried out automatically, no dust from flying phenomenon, and the health of having improved the classroom helps teacher's teaching and student's study, has also alleviated the work intensity of teacher's teaching teaching simultaneously.

Accompanying drawing is an embodiment of the present utility model, further specifies the utility model below in conjunction with accompanying drawing.

Fig. 1 is automatic washing roll type board of education front appearance figure.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

The automatic washing roll type board of education structure chart that Fig. 4 removes for the clipboard face that will write band plate.

Fig. 5 is that the A of Fig. 4 is to view.

Fig. 6 is the C portion detail drawing of Fig. 4.

Fig. 7 is automatic washing roll type teaching frame unfolding state figure.

Fig. 8 is for writing the band plate structure chart.

Fig. 9 is the C-C cutaway view of Fig. 4.

As shown in the figure, the frame of automatic washing roll type board of education forms by forward and backward frame is hinged, circumvolution is write upper and lower cylinder (9), (12) of band plate and is supported, is fixed on the afer bay (7), writes band plate (19) two ends and is separately fixed on the upper and lower cylinder.Write band plate plate face and supported by servo-actuated roller bearing (8), (23), (18), (20), (16), (13) and tighten, writing band plate has part plate face to be attached to two frame places of forebay and exposes the clipboard face (5) that frame constitutes board of education outward.There is rigidity backing plate (21) at clipboard face rear, and the rigidity backing plate is fixed on the forebay (22), and pinch rollers (24) is housed on forebay two frames, and the clipboard face is compressed by pinch rollers and abuts on the rigidity backing plate back vibration in face of the plate when preventing the clipboard book.Drive motors (11) is fixed on the afer bay, connects with gear reduction unit (37) by pulley transmission mechanism (35).Gear reduction unit connects with power transmission shaft (10), power transmission shaft is equipped with sprocket wheel (34a), (34b), (34c), constitute the sprocket wheel reduction gearing mechanism with the ratchet-gear wheel (28), the driving chain (29) that are fixed on the drum shaft respectively, with be fixed on reverse ratchet-gear wheel (31) on the bottom roll axle, driving chain (30) constitutes the sprocket wheel reduction gearing mechanism, and be fixed on the reverse ratchet-gear wheel (33) that cleans on the roll shaft, pass sprocket wheel that bar chain (32) the constitutes mechanism of driving up.Power transmission shaft drove upward cylinder rotation circumvolution by the sprocket wheel reduction gearing mechanism and writes band plate when motor was just changeing, the reverse ratchet-gear wheel idle running on reverse ratchet-gear wheel on the bottom roll axle and the cleaning roll shaft, and bottom roll and cleaning roller are being write servo-actuated under the band plate drive.Motor when counter-rotating power transmission shaft drives bottom roll by the sprocket wheel reduction gearing mechanism and rotates circumvolution and write band plate, and power transmission shaft drives the cleaning roller quick rotation by the sprocket wheel mechanism of driving up, the ratchet-gear wheel idle running on the last drum shaft, and last cylinder is being write servo-actuated under the band plate drive.Cleaning roller (14) supports, is fixed on the afer bay, and the part roll surface is immersed in the cleaning fluid, the part roll surface that exposes cleaning fluid with write band plate and hold out against and contact.Cleaning fluid tank (15) has the whole cleaning refuse receiving magazine (46) that connects, receiving magazine bottom to have discharge gate (44) refuse in the case can be unloaded outside the outlet.Scraper plate (43) and scraper plate (46) are housed on the cleaning fluid tank, and scraper plate (43) can scrape by the unnecessary cleaning fluid that the roll surface upper edge is attached, and scraper plate (46) can be scraped and falls into receiving magazine cleaning powder ash that writing on the blackboard stick to roll surface.Hand-cranking running gear is by crank (6) umbrella gear transmission mechanism (26), driving shaft (27) and the clutch (36) that is made of the spigot-and-socket shaft coupling constitute, crank connects with driving shaft by the umbrella gear transmission mechanism and drives drive shaft turns, one on two shaft couplings of clutch are fixed on that another shaft coupling is fixed on drive shaft end on the drive sprocket axle of pulley transmission mechanism, two shaft couplings separately when driving shaft was pulled out, two shaft coupling socket joint interlocks when driving shaft pushes, but driving shaft drive pulley transmission mechanism and then drive power transmission shaft by gear reduction and rotate, thereby utilize hand-cranking running gear to change the clipboard face or carry out the automatic cleaning of writing on the blackboard.Forward and backward frame is hinged by supporting roller bearing (23), and two frames are launched the back and supported the location by the strut (38) that is loaded on the forebay, and superimposed back is locked by latch (17).

In order to make the board of education outward appearance clean and tidy, attractive in appearance, panel and back shroud are housed on the forward and backward frame, fringing cover plate (25) is equipped with at clipboard face place.Write manual bound bit flag line (39), (40) on the band plate plate face, plate face side is equipped with upper and lower limit bit switch (1), (4) and clipboard face uplink and downlink switches (2), (3) is housed on upper and lower spacing group of retaining (41), (42) frame.It is up to press up switch clipboard face when electronic, and it is descending to press downing switch clipboard face.Discharge up switch clipboard face stop up, discharge downing switch clipboard face and stop descending.When the clipboard face be up to up spacing group of retaining dial push to capable limit switch after the clipboard face stop automatically up, when descending spacing group of retaining dial push capable limit switch after the clipboard face stop descending automatically.When spacing markings occurring on the plate face, promptly must not continue to shake crank when utilizing hand-cranking running gear, otherwise will damage writing band plate.

Claims (5)

1, a kind of automatic washing roll type board of education, it is characterized in that by frame, but circumvolution write band plate, circumvolution write band plate on, bottom roll, cleaning fluid tank, by drive motors, pulley transmission mechanism, gear reduction unit, power transmission shaft, on power transmission shaft drives, bottom roll, the driving mechanism that the chain wheel driving mechanism that cleaning roller rotates constitutes constitutes, writing the band plate two ends is separately fixed at, on the bottom roll, writing band plate is tightened by the roller support by writing band plate drive rotation that is fixed on the frame, the part plate face of writing band plate is attached to frame front bezel place and exposes frame and constitutes the clipboard face outward, cleaning roller part roll surface is immersed in the cleaning fluid, cleaning roller expose cleaning fluid roll surface the part roll surface with write band plate and hold out against and contact, drive motors connects by pulley transmission mechanism and gear reduction unit, gear reduction unit and propeller shaft couplings, chain wheel driving mechanism has by the sprocket wheel that is fixed on the power transmission shaft, be fixed on the ratchet-gear wheel on the drum shaft, the sprocket wheel reduction gearing mechanism that driving chain constitutes, by the sprocket wheel that is fixed on the power transmission shaft, be fixed on the reverse ratchet-gear wheel on the bottom roll axle, the sprocket wheel reduction gearing mechanism that driving chain constitutes is by the sprocket wheel that is fixed on the power transmission shaft, be fixed on the reverse ratchet-gear wheel that cleans on the roll shaft, the sprocket wheel that driving chain the constitutes mechanism of driving up.

2, by the described automatic washing roll type of claim 1 board of education, it is characterized in that there is the rigidity backing plate at said clipboard face rear, the rigidity backing plate is fixed on the frame, on frame two frames pinch rollers is housed, and the clipboard face is compressed by pinch rollers and abuts on the rigidity backing plate.

3, by the described automatic washing roll type of claim 1 board of education, it is characterized in that writing the band plate side spacing group of retaining is housed, limit switch is housed on the frame, spacing group of retaining dialled and pushed away the stall of limit switch motor.

4, by the described automatic washing roll type of claim 1 board of education, it is characterized in that hand-cranking running gear is arranged, hand-cranking running gear is made of crank, umbrella gear transmission mechanism, driving shaft, clutch, crank connects with driving shaft by the umbrella gear transmission mechanism, and driving shaft connects with the drive sprocket axle of said pulley transmission mechanism by clutch.

5, by the described automatic washing roll type of claim 1 board of education, it is characterized in that said frame is made of forward and backward frame, the hinged collapsible or expansion of forward and backward frame.

Images