CN2080028U

CN2080028U - Automatic winding dust-suction blackboard

Info

Publication number: CN2080028U
Application number: CN 90206415
Authority: CN
Inventors: 王贵欣; 苏国安
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-18
Filing date: 1990-05-18
Publication date: 1991-07-03

Abstract

The utility model relates to an automatic winding dust-suction blackboard for teaching. The automatic winding dust-suction blackboard uses an electrically-operated system to change a previous irremovable blackboard surface into a rotary blackboard surface which can move up and down. The chalk writing written on the rotary blackboard surface can be moved from bottom to the top of a teacher without being shielded by the teacher, which is beneficial for the students to see. The rotary blackboard surface can move up and down, so that the teacher can write or draw pictures on optimum positions. The utility model can also automatically suck dust by a dust groove, a water tank and fan blades which are arranged at the lower part of the blackboard, so that teachers and students are free from powder-dust pollution.

Description

Automatic winding dust-suction blackboard

The utility model relates to a kind of blackboard for education, particularly a kind of automatic curtain dust-collecting type blackboard for education.

Traditional blackboard for education needs with blackboard eraser letter written with chalk to be wiped; The plate face can't move.This blackboard not only makes the teacher require great effort when erasing the board when useless, and dust influence the healthy of Faculty and Students, and stiff because of the plate face, and the writing that is in the blackboard bottom tends to be blocked by the student of teacher and front, to giving lessons and study brings a lot of inconvenience.

The purpose of this utility model will provide a kind of automatic curtain dust-collecting type blackboard for education exactly, and it can realize automatic wiping board by electric device, and automatic dust absorption, plate face move automatically.

The utility model is achieved in that the swivel plate face that utilizes a flat drum shape is enclosed within on drive roll and the driven roll, and contacts with the driven roll friction rolling with drive roll.When drive roll rotates, driven rotary plate face rotates together, and frictionally also rotates driven roll thereupon, have one to wipe roller in the drive roll bottom, above wiping roller a helix rill is arranged, be wrapped on the wiping roller along helix with a long band that utilizes mane, felt or chemical fibre hair to manufacture, wipe roller by twining superincumbent mane, felt or chemical fibre hair and swivel plate face CONTACT WITH FRICTION on drive roll, drive roll, driven roll and wiping roller are contained on the pedestal together, and its axis is parallel to each other and perpendicular to pedestal.Drive roll is that the decelerator that is mounted on a side drives.After drive roll rotated, the swivel plate face also began around drive roll and driven roll rotation, and when entering drive roll with writing swivel plate face and wipe between the roller, writing is promptly wiped.The dust of wiping drops in the dust groove, and the rotation of the fan blade of the shaft end by being fixed on the motor shaft shaft coupling sucks water tank with the dust in the dust groove.

The utility model utilizes the rotation of swivel plate face, make write back swivel plate face can be under the rotation of drive roll moving from bottom to top, the content after writing is moved on to teacher's top from the bottom, student's observation sight line is not blocked.Because the swivel plate face can move up and down, the teacher can always write in the optimum position.Because in wiping roller bottom dust groove, water tank and fan blade are housed, Faculty and Students can exempt from the pollution of dust.In use, the teacher need only press push button, just can realize mobile automatically, the automatic wiping board of swivel plate face, automatic dust absorption.Both saved teacher's hours of instruction, and can make Faculty and Students not encroached on by dust again.

Below in conjunction with accompanying drawing the utility model is described in further details:

Fig. 1 is a front schematic view of the present utility model.

Fig. 2 is a side schematic view of the present utility model.

Fig. 3 is a wiping roller front schematic view of the present utility model.

Fig. 4 is a wiping roller side schematic view of the present utility model.

Fig. 5 is a latch plate front schematic view of the present utility model.

Fig. 6 is a latch plate side schematic view of the present utility model.

With reference to Fig. 1.The utility model is by swivel plate face (7), drive roll (1), driven roll (10), pedestal (6), (12), backing plate (13), loam cake (9) is wiped roller (3), dust groove (2), fan blade (26), water tank (24), motor (19) and reduction box (22) are formed.

Drive roll (1) is equipped with in bottom between two-parallel axis frame (6), (12), and the drive roll two ends cooperate with bearing (5), (14) on the pedestal respectively.Driven roll (10) is equipped with on top between two-parallel axis frame (6), (12), and the driven roll two ends cooperate with bearing (8), (11) on the pedestal respectively.Wipe roller (3) and be contained in the below of drive roll (1), and cooperate with bearing (4), (25) on the pedestal.The axis of drive roll, driven roll, wiping roller is parallel to each other, and vertical pedestal (6), (12).

Swivel plate face (7) is made flat drum shape earlier, is enclosed within on drive roll and the driven roll, and contacts with the driven roll friction rolling with drive roll, and the width of swivel plate face is identical with the roll surface length of drive roll and driven roll.When drive roll rotated, frictionally driven rotary plate face was around drive roll and driven roll rotation.Driven roll is by swivel plate face and its friction and rotate.The front of swivel plate face is mobile from bottom to up, moves front and back circulation alternate with each other and the back side of swivel plate face is from top to down.The available iron sheet of swivel plate face, resin, textile material are manufactured.Below the wiping roller dust groove (2) is arranged, its two ends are fixed on pedestal (6), (12).With the axle head of motor shaft shaft coupling one fan blade (26) is housed, it is contained in dust groove and the housing that water tank communicates., rotate by motor (19), drive fan blade and rotate, the dust in the dust groove (2) can be sucked in the water tank (24), water tank (24) is in the below of dust groove (2).

Reduction box (22) is fixedlyed connected with pedestal (12).The gear (15) that cooperates with the drive roll axle head is housed in reduction box, and gear (16), (17) are installed in the axle head of wiping roller, gear (16) and gear (15) engagement.On the axle of fan blade (26) gear (18) is housed, it and gear (17) mesh.Blade shaft is to be connected by shaft coupling (20) with motor shaft.Rotating mechanism is the double reduction rotating mechanism in the reduction box.

With reference to Fig. 2.Two latch plates (27), (28) are equipped with in dust groove (2) top, they respectively with the front of swivel plate face (7), reverse side CONTACT WITH FRICTION.

At the back side near the writing surface of swivel plate face (7) (i.e. front), a backing plate (13) is housed, it is fixed on pedestal (6), (12), and the liner effect is played in the main effect of backing plate (13) exactly when writing.

In the top of driven roll (10) lid (9) is arranged, it is flute profile, tips upside down on the top of driven roll (12), and its two ends are fixed on pedestal (6), (12), are surface plate above, and front and back two plates are decorative panel.

With reference to Fig. 3, Fig. 4.Wiping helix rill of processing on the roller, be wrapped on the helix rill with a long band (31) that utilizes mane, chemical fibre hair or felt materials to manufacture, wipe roller and be with (31) to contact with the swivel plate face friction rolling of walking around from drive roll by the length of mane, chemical fibre or felt materials.

With reference to Fig. 5, Fig. 6.Latch plate (27) has row's dust fall groove (29) near the swivel plate face at frontal, and latch plate (27) is by the positive CONTACT WITH FRICTION of friction plate (30) and swivel plate face.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4.During use, the user can press push button, and motor (19) is started, and simultaneously, is in dust groove (2) is communicated with the position with water tank (24) fan blade and begins rotation.By the engagement of gear (18) with gear (17), roller (3) rotation is wiped in drive, again by engagement drive drive roll (1) rotation of gear (16) with gear (15).Thereupon, the swivel plate face (7) that is enclosed within on drive roll and the driven roll also begins rotation by the frictional force with two rollers.When writing chalk writing on the swivel plate face and enter drive roll (1) and wipe between the roller (3), utilize to be wrapped in the long band of wiping on the roller of manufacturing with mane, felt, fibers material and letter written with chalk to be wiped by the rotation of wiping roller, dust is sucked water tank by fan blade.The dust that the teacher falls from the swivel plate face when writing is sucked water tank by entering dust groove (2) the dust fall groove (29) by fan blade.

Claims

1, a kind of automatic curtain dust-collecting type blackboard for education is by swivel plate face (7), drive roll (1), driven roll (10), pedestal (6), (12), backing plate (13), loam cake (9) is wiped roller (3), dust groove (2), fan blade (26), water tank (24), motor (19) and reduction box (22) are formed, and it is characterized in that:

A. at parallel two pedestals (6), drive roll (1) is equipped with in the bottom between (12), and driven roll (10) is equipped with on top, wiping roller (3) is contained in the below of drive roll (1), and cooperates with pedestal, and the axis of drive roll, driven roll, wiping roller is parallel to each other, and vertical pedestal (6), (12)

B. swivel plate face (7) is a flat drum shape, is enclosed within on drive roll and the driven roll, and contacts with the driven roll friction rolling with drive roll, and the width of swivel plate face is identical with the roll surface length of drive roll and driven roll,

C. at the back side of the writing surface of swivel plate face (7), a backing plate (13) is housed, it and pedestal (6), (12) connect,

D. below wiping roller a dust groove (2) is arranged, its two ends are fixed on pedestal (6), on (12), and communicate with water tank (24),

E. the axle head with the motor shaft shaft coupling is equipped with a fan blade (26), and it is contained in dust groove and the housing that water tank communicates,

F. two latch plates (27) are equipped with on dust groove top, and (28), respectively with the positive and negative CONTACT WITH FRICTION of swivel plate face,

G. wiping helix rill of processing on the roller, be wrapped on the helix rill with a long band (31) that utilizes mane, chemical fibre hair or felt materials to manufacture, wipe roller and be with (31) to contact with the swivel plate face friction rolling that drive roll is walked around by the length of mane, chemical fibre or felt materials.

2,, it is characterized in that latch plate (27) is having row's dust fall groove (29) near swivel plate face frontal according to the described device of claim 1.