CN107097568A - Rotary assembled automatic character-erazing environment friendly blackboard - Google Patents

Abstract

A kind of rotary assembled automatic character-erazing environment friendly blackboard, belongs to teaching aid field, and the lower end of its pillar, which is fixed on heel brace, upper middle part, rotation hole, and there is lower screw the upper end of pillar；The horizontal manufacture of the upper end of upper support has rotation hole, lower end to have upper screw；Lower screw is threadedly coupled with, and upper screw is threadedly coupled with；Belt type blackboard is set with the sturdy part of two rotating rollers；What blackboard faced student in classroom is the back side when being front, being close to locular wall；Fixed outer wiping, the inside are installed outside the back side of belt type blackboard inner press roll is installed, there are central shaft, central gear, planetary gear, gear ring in the inside of inner press roll.Rotary assembled automatic character-erazing environment friendly blackboard it is simple for structure, manufacture and it is easy to use; integrate the automatic function of wiping with blackboard, do not fly the chalk dust flutterred during automatic blackboard cleaning, protect the environmentally-friendly sanitary in classroom; make the standard anyhow of writing again, improve quality of instruction.

Description

Rotary assembled automatic character-erazing environment friendly blackboard

Technical field

The present invention relates to a kind of rotary assembled automatic character-erazing environment friendly blackboard in the blackboard field of teaching.

Background technology

At present, teacher says that the blackboard used class hour is erased the board manually using blackboard eraser.When erasing the board manually, chalk dust Dust it is big, healthy to the people erased the board causes harm.Therefore, we pass through years of researches and practice, design Gone out do not fly to flutter when erasing the board chalk dust and can be on auto-erasing blackboard writing rotary assembled blackboard.

The content of the invention

It is an object of the invention to provide it is a kind of it is revolving, can automatically the rotary assembled wiped of word on blackboard from It is dynamic to wipe word environment friendly blackboard and its manufacture method.

To achieve the above object, rotary assembled automatic character-erazing environment friendly blackboard of the present invention is mainly black including belt Plate, rotating roller, inner press roll, fixed outer wiping, pillar, heel brace, upper support, lower screw, upper screw, adjustment bolt, central shaft, centre tooth Wheel, planetary gear, gear ring, motor, contact starting switch.

The lower end of pillar is fixed on heel brace, and the horizontal manufacture at the upper middle part of pillar has rotation hole, the upper end manufacture of pillar There is lower screw；The horizontal manufacture of the upper end of upper support has rotation hole, and the lower end manufacture of upper support has upper screw；Below adjustment bolt The lower end of the adjustment card handle of the upper end of the lower screw thread divided and the center section of adjustment bolt is connected, and adjusts upper end and the adjustment of card handle The lower end connection of the upper screw thread of part above bolt；The manufacture direction phase of screw thread and the screw thread in lower screw in upper screw Instead, the manufacture of the screw thread and the screw thread on upper screw thread on lower screw thread is in opposite direction；Lower screw coordinates with lower screw thread and is connected, upper spiral shell Hole coordinates and is connected with upper screw thread；One heel brace and a pillar and an adjustment bolt and upper one support of support composition Frame, two secondary support frames of support frame composition one.

The rotary shaft at one rotating roller two ends is arranged in the rotation hole of the pillar of a secondary support frame, another rotating roller two The rotary shaft at end is arranged in the rotation hole of the upper support of a secondary support frame, and the rotating roller in upper support is with being arranged on pillar Rotating roller composition rotation roller group, rotation roller group rotating roller sturdy part on be set with belt type blackboard, in belt type blackboard Outer surface on manufacture have x wire or without manufacture x wire, on the outer surface of belt type blackboard manufacture have vertical line or do not have Manufacture the flush with outer surface of vertical line, x wire and vertical line and belt type blackboard；The rotating roller installed in the rotation hole of pillar Sturdy part above behind space segment and in the aft section of the upper part close to two pillars is fixed with The planetary gear and motor of the other end of the one end by bearing fixation on center shaft, in inner press roll in pressure roller, inner press roll Power shaft end central gear engagement, central shaft and motor respectively in the interior intracavitary at the two ends of inner press roll, central shaft and The hollow parts institute that motor is separately fixed in the aft section of the upper part of two pillars, inner press roll two ends is right Answer on the pillar of scope, the surface of revolution of inner press roll is contacted with the inside one side of belt type blackboard and one side behind inner press roll Belt type blackboard backward face pressure and belt type blackboard is protruded backward；Outer surface at the back side of belt type blackboard is corresponding with inner press roll Position be fixed with it is fixed outer wipe, the fixed outer two ends wiped are fixed on behind the upper end of two pillars by support；Band Formula blackboard is arranged on inner press roll and rotation roller group, and the front that the outer one side wiped is blackboard is fixed in outer surface, and outer surface has The one side of fixed outer wiping is the back side of blackboard, and the locular wall in the back side towards classroom is installed, just installed facing to student.

Described inner press roll is manufactured as the pressure roller of hollow pipe-type, the interior intracavitary of hollow pipe-type pressure roller is placed in the middle or deviation one End is fixed with fixed every fixed every the inner chamber of inner press roll is divided into left chamber and right chamber；Single or multiple axles are installed in left chamber Bearing sleeve supports inner press roll on central shaft, inner press roll is rotated around central shaft；It is fixed with tube wall in right chamber Gear ring, planet axis be fixed on fixation in right chamber every end, planetary gear matched somebody with somebody by needle bearing or slip cap with planet axis Close, planetary gear can be rotated freely in planet axis, and the central gear for being fixed on the power shaft end of motor stretches into planet The centre of gear, central gear is engaged with planetary gear, and planetary gear is engaged with gear ring；Described left chamber and right chamber be it is relative and Speech, the position of left chamber and right chamber can be exchanged；Manufacture has straight-tooth, tooth on described central gear and planetary periphery Manufacture has straight-tooth on the inner headed face of circle, or, manufacture has the inner circle of helical teeth, gear ring on central gear and planetary periphery Manufacture has helical teeth on face.

Described central shaft is manufactured as the axle for being fixed on and inner press roll being supported on pillar, and one end of central shaft is fixed on pillar The upper, other end is stretched into insert in the inner chamber of inner press roll and is fixed in the endoporus of the bearing in the inner chamber of inner press roll.

Described motor is manufactured as the dc motor or ac motor that can be rotated and reverse, ac motor Adjustable frequency motor can also be manufactured as；One end that motor is fitted without central gear is fixed on pillar, is provided with center One end of gear is stretched into the inner chamber of inner press roll；The supply line of motor is connected with the outlet line of contact starting switch, The supply line of contact starting switch is connected with power supply；Described contact starting switch is arranged on pillar and is fitted without it The position of its part.

Described contact starting switch be manufactured as rubber spring, contact head, transmission head, conductor wire, rotate forward button, it is anti- Turn button and the several parts of housing；There is via to pass through the upper end diameter of housing, main story button and reversion button at the top of housing Small partially passes through via, and the upper end of transmission head is separately fixed at the lower end of main story button and reversion button；Bottom in housing Portion be provided with below two contact heads, rubber spring be partly enclosed on the internal diameter of contact head it is small above on part, rubber spring Above be partly enclosed on the internal diameter of transmission head it is small below on part；Part and transmission head diameter are big below contact head diameter is big Above part connect conductor wire respectively, the electric current input conductor wire of connection in contact starting switch and the live wire of power supply connect Connect, the entrance live wire of electric current output conductor wire and motor is connected, the line of power supply to motor using be directly connected to and without Cross contact starting switch；Gap is left in the upper end of contact head in the endoporus of rubber spring and the lower end of transmission head, , can be with the upper end of main story button or the contact head of the corresponding installation of reversion button when pressing main story button or reversion button Transmit head lower end in contact and pass through conductor wire connect motor supply line；Motor is rotated forward when pressing main story button, is pressed Motor is inverted during lower reversion button, and motor shuts down during release button；Described rubber spring is manufactured using rubber, system The rubber bodies of tubular type are caused, the function of spring is realized using the deformation return function of rubber.

There is spiral shell weight, the upper end that described pillar is manufactured as support in carrying, adjustment bolt, rotating roller and belt type blackboard Pit, upper middle part have the support cylinder of rotation hole；

The transverse direction that described upper support is manufactured as upper end has rotation hole, lower end to have screwed hole cylinder；

Described heel brace is manufactured as the horizontal cylinder of the weight of H load-bearing pillar, upper support, adjustment bolt, rotating roller and belt type blackboard Or disking body.

Described adjustment bolt is manufactured as lower screw thread, three parts of adjustment card handle and upper screw thread, and the handle manufacture of adjustment card exists Middle part, lower screw thread manufacture is below adjustment card handle, and upper screw thread manufacture is above adjustment card handle, in lower screw thread and upper screw thread Heart line is manufactured on the same line；Adjustment card handle is manufactured as an entirety with three parts of lower screw thread and upper screw thread, or separates It is fixed together again after manufacture.

Described rotating roller is manufactured as middle cylinder thick, small in ends, and part small in ends is manufactured as smooth Rotary shaft；

Described belt type blackboard uses one or more of material manufactures in plastics, nylon, rubber, is manufactured as flexible volume The plate of belt；The plate of described coil type can also be manufactured as the plate of the smooth coil type in surface；Again by flexible winding The plate of formula surrounds the ring of a long-tube, the end at the two ends of interface is polished into after beveled mouth again fixed with viscose glue afterwards And the blackboard as conveyer belt type；Described belt type blackboard can also add warp and weft in the plate of coil type during fabrication Come the long ability of tension for increasing belt type blackboard.

The part contacted with belt type blackboard is wiped outside described fixation to manufacture using soft fiber or sponge, be manufactured as energy Enough wipe the chalk trace eraser on blackboard；The part that the fixed outer back side wiped and two ends are fixed on pillar uses hard material Manufacture；When rotating roller drives belt type blackboard to rotate, inner press roll withstands on the inside one side of belt type blackboard and makes belt type blackboard outside Protrusion, it is fixed outer wipe can be on erasing blackboard writing.

In order that belt type blackboard can be tightened or unclamped in rotating roller, rotate the adjustment card handle of adjustment bolt and make spiral shell Line rotates simultaneously with lower screw thread, reversely promotes to support moving up upper screw thread rotates with lower screw thread simultaneously when by upper screw and lower screw Or support and move down on pulling, belt type blackboard is tightened in rotating roller when upper support is moved up, and belt type blackboard is in rotating roller release when upper support is moved down； Belt type blackboard drives belt type blackboard when rotating roller is tightened beneficial to the rotating roller write and be easily installed on blackboard on pillar Rotated in two rotating rollers；Belt type blackboard is folded down when rotating roller is unclamped beneficial to belt type blackboard from rotating roller.

Chalk dust is set not fly to flutter everywhere in order to which chalk dust is collected, additionally it is possible to close under fixed outer wiping Disposable box is simultaneously fixed with behind the pillar in face to collect chalk dust；Described disposable box is the rectangular box for having a bottom uncovered Son, the two ends of disposable box are separately fixed on two pillars.

In order that fixed outer wipe is wiped totally when erasing the board, the one side erased the board wiped outside described fixation can also be adopted Blade insert is manufactured as with elastomeric material.In order to make chalk be write on the plate of coil type, described chalk can be Hard chalk, it may also be said to soft chalk；Described hard chalk is traditional common chalk；Described soft chalk is can be in surface light The strong pen of the adhesive force that writes or paint on the plate of sliding coil type, such as marking pen.

Laterally write neat on blackboard for convenience, have x wire on the outer surface of blackboard；Described x wire is Fine line or dotted line or chain-dotted line or the dotted line of ellipsis formula；

The lines of neat or the text alignment with up-downgoing or the picture that aligns longitudinally are write on blackboard for convenience, in blackboard There is vertical line on outer surface；Described vertical line is the dotted line of fine line or dotted line or chain-dotted line or ellipsis formula.

In use, directly write or drawn on blackboard with chalk；The not high people of height is directly in the middle and lower part book of blackboard Write or draw, when writing blackboard bottom, the main story button for pressing contact starting switch starts motor drive central gear rotation Turn, central gear drives planetary gear rotation, planetary gear drives gear ring rotation and drives inner press roll to rotate forward；Inner press roll is just To driving belt type blackboard to be rotated forward in rotating roller during rotation, belt type blackboard is moved up after a certain distance, is unclamped contact and is opened Disconnecting power supply circuit after the main story button of dynamic switch makes motor shut down, and belt type blackboard stops movement, afterwards, continues black Write or draw on plate；Solve the problem that the not high people of height can not partly write above blackboard.

Tall people directly blackboard top writing or draw, write needs and bend over or squat down when can write picture, The main story button for pressing contact starting switch starts motor drive central gear rotation, and central gear drives planetary gear rotation Turn, planetary gear drives gear ring rotation and drives inner press roll to rotate forward；Belt type blackboard is driven when inner press roll is rotated forward in rotation Rotated forward on transfer roller, belt type blackboard is moved up after a certain distance, unclamp and confession is disconnected after the main story button of contact starting switch Circuit makes motor shut down, and belt type blackboard stops movement, afterwards, and continuation is write or drawn on blackboard；Solve individual The high people of son can not partly write the problem for needing to bend over or squat down below blackboard, improve the picture that write on blackboard Comfortableness.

The front of blackboard write it is full after when needing the calligraphy and painting on erasing blackboard, press contact starting switch main story button or Invert button and start motor drive central gear rotation, central gear drives planetary gear rotation, and planetary gear drives gear ring Rotate and drive inner press roll to rotate forward or backwards；When inner press roll rotates forward or backwards drive belt type blackboard in rotating roller just To or rotate backward, when belt type blackboard rotates forward or backwards in rotating roller, in the one side at the back side for rotating to blackboard When writing passes through the position of fixed outer wiping, inner press roll withstands the back side of blackboard in the inside of belt type blackboard（Behind belt type blackboard Simultaneously）The inside stand fast and allow the fixed outer scraping sub-sections wiped to wipe the writing on the blackboard back side off, belt type blackboard is by fixing The part of outer wiping all can be clean by fixed outer wiping erasing；After blackboard is wiped clean, unclamp contact starting switch main story button or Disconnecting power supply circuit after reversion button makes motor shut down, and completes the auto-erasing of the writing on blackboard；In fixed outer wiping When erasing the board, the writing on blackboard is wiped off by the way of striking off, when striking off the writing on blackboard, fixed outer erasure is not free Flow of air would not produce wind, and chalk dust sinks and dropped in disposable box naturally, makes do not have the winged of chalk dust to flutter in classroom.

The simple for structure of described rotary assembled automatic character-erazing environment friendly blackboard, manufacture and easy to use, collection is automatic wipe with The function of blackboard does not fly the chalk dust flutterred when one, automatic blackboard cleaning, protects the environmentally-friendly sanitary in classroom, book is made again The standard anyhow write, improves quality of instruction.

Brief description of the drawings

Fig. 1 is the cross section structure diagram of the front view of rotary assembled automatic character-erazing environment friendly blackboard；

Fig. 2 is that the surface surface structure that has the front view of grid of the belt type blackboard of rotary assembled automatic character-erazing environment friendly blackboard shows It is intended to；

Fig. 3 is that the surface surface structure that has the rearview of grid of the belt type blackboard of rotary assembled automatic character-erazing environment friendly blackboard shows It is intended to；

Fig. 4 is that the surface of the belt type blackboard of rotary assembled automatic character-erazing environment friendly blackboard does not have the surface structure of the front view of grid Schematic diagram；

Fig. 5 is that the surface of the belt type blackboard of rotary assembled automatic character-erazing environment friendly blackboard does not have the surface structure of the rearview of grid Schematic diagram；

Fig. 6 is the surface structure schematic diagram of the left view of rotary assembled automatic character-erazing environment friendly blackboard；

Fig. 7 is the cross section structure diagram of the left view of belt type blackboard blackboard part；

Fig. 8 is the cross section structure diagram of contact starting switch.

Shown in figure：Heel brace 1, pillar 2, rotating roller 3, belt type blackboard 4, it is upper support 5, lower screw 6, upper screw 7, lower screw thread 8, Upper screw thread 9, central shaft 10, adjustment card handle 11, vertical line 12, x wire 13, inner press roll 14, it is fixed it is outer wipe 15, motor 16, in Heart gear 17, gear ring 18, planetary gear 19, bearing 20, fixation are every 21, housing 22, reversion button 23, rotating forward button 24, rubber Spring 25, transmission first 26, contact head 27, conductor wire 28.

Embodiment

Rotary assembled automatic character-erazing environment friendly blackboard of the present invention is outer including belt type blackboard 4, rotating roller 3, inner press roll 14, fixation Wipe 15, pillar 2, heel brace 1, upper support 5, lower screw 6, upper screw 7, adjustment bolt, central shaft 10, central gear 17, planetary gear 19th, gear ring 18, motor 16, contact starting switch.

The lower end of pillar 2 is fixed on heel brace 1, and the horizontal manufacture at the upper middle part of pillar 2 has rotation hole, the upper end of pillar 2 Manufacture has lower screw 6；The horizontal manufacture of the upper end of upper support 5 has rotation hole, and the lower end manufacture of upper support 5 has upper screw 7；Adjustment bolt Below part the upper end of lower screw thread 8 and the lower end of adjustment card handle 11 of center section of adjustment bolt connect, adjust card handle The lower end connection of the upper screw thread 9 of part above 11 upper end and adjustment bolt；In screw thread and lower screw 6 in upper screw 7 The manufacture direction of screw thread is on the contrary, the manufacture of the screw thread and the screw thread on upper screw thread 9 on lower screw thread 8 is in opposite direction；Lower screw 6 is with Screw thread 8 coordinates and connected, and upper screw 7 coordinates and is connected with upper screw thread 9；One heel brace 1 and a pillar 2 and an adjustment bolt And a upper support 5 constitutes a support frame, two secondary support frames of support frame composition one.

The rotary shaft at one two ends of rotating roller 3 is arranged in the rotation hole of the pillar 2 of a secondary support frame, another rotating roller The rotary shaft at 3 two ends is arranged in the rotation hole of the upper support 5 of a secondary support frame, and the rotating roller 3 in upper support 5 is with being arranged on Rotating roller composition rotation roller group on pillar 2, belt type blackboard 4 is set with the sturdy part of the rotating roller 3 of rotation roller group, Manufacture has x wire 13 or without manufacture x wire 13 on the outer surface of belt type blackboard 4, is manufactured on the outer surface of belt type blackboard 4 There is vertical line 12 or without the flush with outer surface for manufacturing vertical line 12, x wire 13 and vertical line 12 and belt type blackboard 4；In pillar Space segment behind above the sturdy part for the rotating roller 3 installed in 2 rotation hole and close to the upper of two pillars 2 One end for being fixed with inner press roll 14, inner press roll 14 of aft section of end part by bearing 20 fix on the center shaft 10, it is interior The planetary gear 19 of the other end in pressure roller 14 is engaged with the central gear 17 of the power shaft end of motor 16, the He of central shaft 10 Motor 16 is separately fixed at close to two pillars in the interior intracavitary at the two ends of inner press roll 14, central shaft 10 and motor 16 respectively Corresponding in the aft section of 2 upper part, the two ends of inner press roll 14 hollow parts on the pillar 2 of scope, inner press roll 14 The inside one side of surface of revolution and belt type blackboard 4 contact and the belt type blackboard 4 on one side behind inner press roll 14 face pressure backward And belt type blackboard 4 is protruded backward；It is fixed with the outer surface at the back side of belt type blackboard 4 position corresponding with inner press roll 14 Determine outer wiping 15, the two ends of fixed outer wiping 15 are fixed on behind the upper end of two pillars 2 by support；Belt type blackboard 4 is pacified On inner press roll 14 and rotation roller group, the one side of the fixed outer wiping 15 in outer surface is the front of blackboard, and there is fixation outer surface The one side of outer wiping 15 is the back side of blackboard, and the locular wall in the back side towards classroom is installed, just installed facing to student.

Described inner press roll 14 is manufactured as the pressure roller of hollow pipe-type, the interior intracavitary of hollow pipe-type pressure roller is placed in the middle or deviation One end, which is fixed with, to be fixed every 21, and fixation is divided into left chamber and right chamber every the inner chamber of 21 inner press rolls 14；It is provided with left chamber single Or multiple bearings 20 are sleeved on central shaft 10 to support inner press roll 14, inner press roll 14 is rotated around central shaft 10；On the right side Gear ring 18 is fixed with the tube wall of intracavitary, planet axis is fixed on the fixation in right chamber every 21 end, and planetary gear 19 passes through rolling Needle bearing 20 or slip cap coordinate with planet axis, and planetary gear 19 can be rotated freely in planet axis, be fixed on motor 16 The central gear 17 of power shaft end stretch into the centre of planetary gear 19, central gear 17 is engaged with planetary gear 19, planet Gear 19 is engaged with gear ring 18；Described left chamber and right chamber is that comparatively, the position of left chamber and right chamber can be exchanged；It is described Central gear 17 and planetary gear 19 periphery on manufacture have straight-tooth, on the inner headed face of gear ring 18 manufacture have straight-tooth, or, On the periphery of central gear 17 and planetary gear 19 manufacture have helical teeth, on the inner headed face of gear ring 18 manufacture have helical teeth.

Described central shaft 10 is manufactured as the axle for being fixed on and inner press roll 14 being supported on pillar 2, and one end of central shaft 10 is consolidated It is scheduled on pillar 2, the other end stretches into the interior of the bearing 20 that insertion in the inner chamber of inner press roll 14 is fixed in the inner chamber of inner press roll 14 Kong Zhong.

Described motor 16 is manufactured as the dc motor 16 or ac motor 16 that can be rotated and reverse, exchange Motor 16 can also be manufactured as adjustable frequency motor 16；One end that motor 16 is fitted without central gear 17 is fixed on pillar On 2, one end of central gear 17 is installed stretched into the inner chamber of inner press roll 14；The supply line of motor 16 starts with contact The outlet line connection of switch, the supply line of contact starting switch is connected with power supply；Described contact starting switch peace The position of other parts is fitted without on pillar 2.

Described contact starting switch is manufactured as rubber spring 25, contact head 27, transmits first 26, conductor wire 28, just Turn button 24, reversion button 23 and the several parts of housing 22；Have at the top of housing 22 via pass through housing 22, main story button and Invert button 23 upper end diameter it is small partially pass through via, the upper end of transmission first 26 is separately fixed at main story button and reversion is pressed The lower end of button 23；Bottom in housing 22 is provided with below two contact heads 27, rubber spring 25 and is partly enclosed on contact head Partly be enclosed on above 27 internal diameter is small on part, above rubber spring 25 internal diameter of transmission first 26 it is small below on part； Below the diameter of contact head 27 is big part and transmit first 26 diameter it is big above part connect conductor wire 28 respectively, contact starts The electric current input conductor wire 28 of connection in switch is connected with the live wire of power supply, the entrance of electric current output conductor wire 28 and motor 16 Live wire is connected, the line of power supply to motor 16 using be directly connected to and without contact starting switch；Installed in rubber bullet Gap is left in the upper end of contact head 27 in the endoporus of spring 25 and the lower end of transmission first 26, is pressing main story button or reversion button When 23, with the upper end of main story button or the contact head 27 of the corresponding installation of reversion button 23 can with transmit first 26 lower end in contact And the supply line of motor 16 is connected by conductor wire 28；Motor 16 is rotated forward when pressing main story button, presses reversion button Motor 16 is inverted when 23, and motor 16 shuts down during release button；Described rubber spring 25 is manufactured using rubber, manufacture Rubber bodies as tubular type, the function of spring is realized using the deformation return function of rubber.

Described pillar 2 is manufactured as weight, the upper end of support 5 in carrying, adjustment bolt, rotating roller 3 and belt type blackboard 4 There are screwed hole, upper middle part to have the support cylinder of rotation hole；

The transverse direction that described upper support 5 is manufactured as upper end has rotation hole, lower end to have screwed hole cylinder；

Described heel brace 1 is manufactured as the horizontal stroke of the weight of H load-bearing pillar 2, upper support 5, adjustment bolt, rotating roller 3 and belt type blackboard 4 To cylinder or disking body；

Described adjustment bolt is manufactured as lower screw thread 8, adjustment card handle 11 and 9 three parts of upper screw thread, and adjustment card handle 11 is manufactured At middle part, lower screw thread 8 is manufactured below adjustment card handle 11, and upper screw thread 9 is manufactured above adjustment card handle 11, the lower He of screw thread 8 The center line manufacture of upper screw thread 9 is on the same line；Adjustment card handle 11 is manufactured as with 9 three parts of lower screw thread 8 and upper screw thread One entirety, or it is separately manufactured after be fixed together again.

Described rotating roller 3 is manufactured as middle cylinder thick, small in ends, and part small in ends is manufactured as smooth Rotary shaft；

Described belt type blackboard 4 is manufactured as flexible using one or more of material manufactures in plastics, nylon, rubber The plate of coil type；The plate of described coil type can also be manufactured as the plate of the smooth coil type in surface；Again by flexible volume The plate of belt surrounds the ring of a long-tube, the end at the two ends of interface is polished into after beveled mouth again consolidated with viscose glue afterwards Blackboard that is fixed and turning into conveyer belt type；Described belt type blackboard 4 can also be added during fabrication in the plate of coil type warp and Parallel is come the long ability of tension that increases belt type blackboard 4.

15 parts contacted with belt type blackboard 4 are wiped outside described fixation to manufacture, be manufactured into using soft fiber or sponge For the chalk trace eraser on blackboard can be wiped；The part that the fixed outer back side for wiping 15 and two ends are fixed on pillar 2 is used Hard material is manufactured；When rotating roller 3 drives belt type blackboard 4 to rotate, inner press roll 14 withstands on the inside one side of belt type blackboard 4 and made Belt type blackboard 4 is outwardly, fixed outer to wipe 15 writings that be on erasing blackboard.

In order that belt type blackboard 4 can be tightened or unclamped in rotating roller 3, rotate the adjustment card handle 11 of adjustment bolt and make Upper screw thread 9 rotates simultaneously with lower screw thread 8, and upper screw thread 9 passes through upper screw 7 and the lower reverse push of screw 6 when being rotated with lower screw thread 8 simultaneously Dynamic upper support 5 move up or pull on support 5 move down, belt type blackboard 4 is tightened in rotating roller 3 when upper support 5 is moved up, upper to support 5 belts when moving down Blackboard 4 unclamps in rotating roller 3；Belt type blackboard 4 is when rotating roller 3 is tightened, beneficial to writing and be easily installed on blackboard in pillar 2 On rotating roller 3 drive belt type blackboard 4 rotated in two rotating rollers 3；Belt type blackboard 4 is when rotating roller 3 is unclamped, beneficial to belt Blackboard 4 is folded down from rotating roller 3.

Chalk dust is set not fly to flutter everywhere in order to which chalk dust is collected, additionally it is possible to close in fixed outer wiping 15 Simultaneously it is fixed with disposable box to collect chalk dust behind following pillar 2；Described disposable box is that rectangular have bottom uncovered Box, the two ends of disposable box are separately fixed on two pillars 2.

In order that fixed outer wiping 15 is wiped totally when erasing the board, the one side erased the board that 15 are wiped outside described fixation can also Blade insert is enough manufactured as using elastomeric material.In order to make chalk be write on the plate of coil type, described chalk can To be hard chalk, it may also be said to soft chalk；Described hard chalk is traditional common chalk；Described soft chalk is can be in table The strong pen of the adhesive force that writes or paint on the plate of the smooth coil type in face, such as marking pen.

Laterally write neat on blackboard for convenience, there is x wire 13 on the outer surface of blackboard；Described x wire 13 be the dotted line of fine line or dotted line or chain-dotted line or ellipsis formula；

The lines of neat or the text alignment with up-downgoing or the picture that aligns longitudinally are write on blackboard for convenience, in blackboard There is vertical line on outer surface；Described vertical line 12 is the dotted line of fine line or dotted line or chain-dotted line or ellipsis formula.

In use, directly write or drawn on blackboard with chalk；The not high people of height is directly in the middle and lower part book of blackboard Write or draw, when writing blackboard bottom, the main story button for pressing contact starting switch starts the drive central gear of motor 16 17 rotations, central gear 17 drives planetary gear 19 to rotate, and planetary gear 19 drives gear ring 18 to rotate and drive inner press roll 14 just To rotation；Belt type blackboard 4 is driven to be rotated forward in rotating roller 3 when inner press roll 14 is rotated forward, belt type blackboard 4 moves up certain After distance, unclamping disconnection power supply circuit after the main story button of contact starting switch makes motor 16 shut down, belt type blackboard 4 Stop movement, afterwards, continuation is write or drawn on blackboard；Solve the not high people of height can not above blackboard part The problem write.

Tall people directly blackboard top writing or draw, write needs and bend over or squat down when can write picture, The main story button startup motor 16 for pressing contact starting switch drives central gear 17 to rotate, and central gear 17 drives planet Gear 19 rotates, and planetary gear 19 drives gear ring 18 to rotate and drive inner press roll 14 to rotate forward；When inner press roll 14 is rotated forward Drive belt type blackboard 4 to be rotated forward in rotating roller 3, belt type blackboard 4 is moved up after a certain distance, unclamp contact starting switch Main story button after disconnect power supply circuit motor 16 is shut down, belt type blackboard 4 stop movement, afterwards, continue in blackboard On write or draw；Solving tall people and can not partly being write below blackboard needs the problem bending over or squat down, Improve the comfortableness for the picture that write on blackboard.

The front of blackboard write it is full after when needing the calligraphy and painting on erasing blackboard, press contact starting switch main story button or Reversion button 23 starts motor 16 and drives central gear 17 to rotate, and central gear 17 drives planetary gear 19 to rotate, planet tooth Wheel 19 drives gear ring 18 to rotate and drive inner press roll 14 to rotate forward or backwards；Inner press roll 14 drives band when rotating forward or backwards Formula blackboard 4 is rotated forward or backwards in rotating roller 3, when belt type blackboard 4 rotates forward or backwards in rotating roller 3, in rotation When writing on to the one side at the back side of blackboard passes through the position of fixed outer wiping 15, inner press roll is withstood in the inside of belt type blackboard 4 The back side of blackboard（One side behind belt type blackboard 4）The inside stand fast and allow fixed outer 15 scraping sub-sections wiped to wipe the blackboard back of the body off Writing on face, belt type blackboard 4 all can be by the fixed outer erasing of wiping 15 totally by fixing the part of outer wiping 15；Blackboard is wiped clean Afterwards, disconnecting power supply circuit after the main story button or reversion button 23 that unclamp contact starting switch makes motor 16 shut down, Complete the auto-erasing of the writing on blackboard；When fixed outer wiping 15 erases the board, the word on blackboard is wiped off by the way of striking off Mark, when striking off the writing on blackboard, fixed outer wipe does not have air flow to produce wind at 15, chalk dust sink naturally and Drop in disposable box, make there is no the winged of chalk dust to flutter in classroom.

Claims (2)

1. a kind of rotary assembled automatic character-erazing environment friendly blackboard, including belt type blackboard, rotating roller, inner press roll, fixed outer wiping, branch Post, heel brace, upper support, lower screw, upper screw, adjustment bolt, central shaft, central gear, planetary gear, gear ring, motor, contact Formula starting switch, it is characterised in that：

The lower end of pillar is fixed on heel brace, under the horizontal manufacture at the upper middle part of pillar has rotation hole, the upper end manufacture of pillar to have Screw；The horizontal manufacture of the upper end of upper support has rotation hole, and the lower end manufacture of upper support has upper screw；Part below adjustment bolt The lower end of the adjustment card handle of the upper end of lower screw thread and the center section of adjustment bolt is connected, and adjusts upper end and the adjustment bolt of card handle Above part upper screw thread lower end connection；The manufacture direction of screw thread in upper screw and the screw thread in lower screw on the contrary, under The manufacture of screw thread and the screw thread on upper screw thread on screw thread is in opposite direction；Lower screw coordinates and is connected with lower screw thread, upper screw with Upper screw thread coordinates and connected；One heel brace and a pillar and an adjustment bolt and one support frame of a upper support composition, two The secondary support frame of individual support frame composition one；

The rotary shaft at one rotating roller two ends is arranged in the rotation hole of the pillar of a secondary support frame, another rotating roller two ends Rotary shaft is arranged in the rotation hole of the upper support of a secondary support frame, the rotating roller in upper support and the rotation on pillar Transfer roller composition rotation roller group, is set with belt type blackboard, in the outer of belt type blackboard on the sturdy part of the rotating roller of rotation roller group Without manufacture x wire and vertical line on surface；After above the sturdy part for the rotating roller installed in the rotation hole of pillar One end that the space segment in face and aft section in the upper part close to two pillars are fixed with inner press roll, inner press roll leads to Cross the central gear of the planetary gear of the other end of the bearing fixation on center shaft, in inner press roll and the power shaft end of motor Engagement, central shaft and motor are separately fixed at close to two in the interior intracavitary at the two ends of inner press roll, central shaft and motor respectively Corresponding in the aft section of the upper part of root pillar, inner press roll two ends hollow parts on the pillar of scope, inner press roll Surface of revolution and belt type blackboard the inside one side contact and the belt type blackboard on one side behind inner press roll backward face pressure and make Belt type blackboard protrudes backward；In the outer surface at the back side of belt type blackboard, the position corresponding with inner press roll is fixed with fixed outer wiping, The fixed outer two ends wiped are fixed on behind the upper end of two pillars by support；Belt type blackboard is arranged on inner press roll and rotation In transfer roller group, the one side of the fixed outer wiping in outer surface is the front of blackboard, and outer surface has the fixed outer one side wiped to be blackboard The back side, the locular wall in the back side towards classroom is installed, just installed facing to student；

Described inner press roll is manufactured as the pressure roller of hollow pipe-type, placed in the middle or deviation one end is consolidated in the interior intracavitary of hollow pipe-type pressure roller Surely have fixed every fixed every the inner chamber of inner press roll is divided into left chamber and right chamber；Single or multiple bearing holder (housing, cover)s are installed in left chamber Inner press roll is supported on central shaft, inner press roll is rotated around central shaft；Gear ring is fixed with tube wall in right chamber, Planet axis be fixed on fixation in right chamber every end, planetary gear coordinated by needle bearing or slip cap with planet axis, OK Star gear can be rotated freely in planet axis, be fixed on the power shaft end of motor central gear stretch into it is planetary Centre, central gear is engaged with planetary gear, and planetary gear is engaged with gear ring；Described left chamber and right chamber be comparatively, The position of left chamber and right chamber can be exchanged；Manufacture has straight-tooth, gear ring on described central gear and planetary periphery Manufacture has straight-tooth on inner headed face, or, there be on the inner headed face of helical teeth, gear ring manufacture on central gear and planetary periphery Manufacture has helical teeth；

Described central shaft is manufactured as the axle for being fixed on and inner press roll being supported on pillar, one end of central shaft is fixed on pillar, The other end is stretched into insert in the inner chamber of inner press roll and is fixed in the endoporus of the bearing in the inner chamber of inner press roll；

Described motor is manufactured as the dc motor or ac motor that can be rotated and reverse, and ac motor can also Enough it is manufactured as adjustable frequency motor；One end that motor is fitted without central gear is fixed on pillar, is provided with central gear One end stretch into the inner chamber of inner press roll；The supply line of motor is connected with the outlet line of contact starting switch, contact The supply line of formula starting switch is connected with power supply；Described contact starting switch is arranged on pillar and is fitted without other portions The position of part；

Described contact starting switch is manufactured as rubber spring, contact head, transmits head, conductor wire, rotate forward button, invert and press Button and the several parts of housing；There is via to pass through housing at the top of housing, the upper end diameter of main story button and reversion button is small Via is partially passed through, the upper end of transmission head is separately fixed at the lower end of main story button and reversion button；Bottom peace in housing Equipped with two contact heads, be partly enclosed on below rubber spring the internal diameter of contact head it is small above on part, rubber spring it is upper Face part be enclosed on the internal diameter of transmission head it is small below on part；Part and big upper of transmission head diameter below contact head diameter is big Face part connects the live wire connection of the electric current input conductor wire and power supply of connection in conductor wire, contact starting switch, electricity respectively The entrance live wire of stream output conductor wire and motor is connected, the line of power supply to motor using be directly connected to and without contact Formula starting switch；Gap is left in the upper end of contact head in the endoporus of rubber spring and the lower end of transmission head, is pressing When main story button or reversion button, the upper end of the contact head of installation corresponding with main story button or reversion button can be with transmission head Lower end in contact and pass through conductor wire connect motor supply line；Motor is rotated forward when pressing main story button, presses reversion Motor is inverted during button, and motor shuts down during release button；Described rubber spring is manufactured using rubber, is manufactured as The rubber bodies of tubular type, the function of spring is realized using the deformation return function of rubber；

There is screw thread weight, the upper end that described pillar is manufactured as support in carrying, adjustment bolt, rotating roller and belt type blackboard There is the support cylinder of rotation hole in hole, upper middle part；

The transverse direction that described upper support is manufactured as upper end has rotation hole, lower end to have screwed hole cylinder；

Described heel brace is manufactured as the horizontal cylinder of the weight of H load-bearing pillar, upper support, adjustment bolt, rotating roller and belt type blackboard Or disking body；

Described adjustment bolt is manufactured as lower screw thread, three parts of adjustment card handle and upper screw thread, and adjustment card handle is manufactured at middle part, Lower screw thread manufacture is below adjustment card handle, and upper screw thread manufacture is above adjustment card handle, the center line of lower screw thread and upper screw thread Manufacture is on the same line；Adjustment card handle is manufactured as an entirety with three parts of lower screw thread and upper screw thread, or separately manufactured It is fixed together again afterwards；

Described rotating roller is manufactured as middle cylinder thick, small in ends, and part small in ends is manufactured as smooth rotation Axle；

Described belt type blackboard uses one or more of material manufactures in plastics, nylon, rubber, is manufactured as flexible volume The plate of belt；The plate of described coil type can also be manufactured as the plate of the smooth coil type in surface；Again by flexible winding The plate of formula surrounds the ring of a long-tube, the end at the two ends of interface is polished into after beveled mouth again fixed with viscose glue afterwards And the blackboard as conveyer belt type；Described belt type blackboard can also add warp and weft in the plate of coil type during fabrication Come the long ability of tension for increasing belt type blackboard；

The part contacted with belt type blackboard is wiped outside described fixation to manufacture using soft fiber or sponge, be manufactured as and can wipe Fall the chalk trace eraser on blackboard；The part that the fixed outer back side wiped and two ends are fixed on pillar uses hard material system Make；When rotating roller drives belt type blackboard to rotate, inner press roll withstands on the inside one side of belt type blackboard and makes belt type blackboard convex Go out, it is fixed outer wipe can be on erasing blackboard writing；

In order that belt type blackboard can be tightened or unclamped in rotating roller, rotate the adjustment card handle of adjustment bolt and make screw thread with Lower screw thread rotates simultaneously, reversely promotes support to move up or draw by upper screw and lower screw upper screw thread rotates with lower screw thread simultaneously when Dynamic upper support is moved down, and belt type blackboard is tightened in rotating roller when upper support is moved up, and belt type blackboard unclamps in rotating roller when upper support is moved down；Belt Blackboard drives belt type blackboard two when rotating roller is tightened beneficial to the rotating roller write and be easily installed on blackboard on pillar Rotated in individual rotating roller；Belt type blackboard is folded down when rotating roller is unclamped beneficial to belt type blackboard from rotating roller；

Chalk dust is set not fly to flutter everywhere in order to which chalk dust is collected, additionally it is possible to close to below fixed outer wiping Disposable box is simultaneously fixed with behind pillar to collect chalk dust；Described disposable box is the rectangular box for having a bottom uncovered, The two ends of disposable box are separately fixed on two pillars；

In use, directly write or drawn on blackboard with chalk；The not high people of height directly blackboard middle and lower part writing or Draw, when writing blackboard bottom, the main story button for pressing contact starting switch starts motor drive central gear rotation, in Heart gear drives planetary gear rotation, and planetary gear drives gear ring rotation and drives inner press roll to rotate forward；Inner press roll forward direction rotation Drive belt type blackboard to be rotated forward in rotating roller when turning, belt type blackboard is moved up after a certain distance, unclamp contact startup and open Power supply circuit is disconnected after the main story button of pass makes motor shut down, and belt type blackboard stops movement, afterwards, continues on blackboard Write or draw；Solve the problem that the not high people of height can not partly write above blackboard；

Tall people directly blackboard top writing or draw, write needs and bend over or squat down when can write picture, press The main story button of contact starting switch starts motor and drives central gear rotation, and central gear drives planetary gear rotation, Planetary gear drives gear ring rotation and drives inner press roll to rotate forward；Belt type blackboard is driven when inner press roll is rotated forward in rotating roller On rotate forward, belt type blackboard is moved up after a certain distance, unclamp contact starting switch main story button after disconnect power supply electricity Road makes motor shut down, and belt type blackboard stops movement, afterwards, and continuation is write or drawn on blackboard；Solve tall People can not partly be write below blackboard and need the problem bending over or squat down, improve relaxing for the picture that write on blackboard Adaptive；

When the front of blackboard needs the calligraphy and painting on erasing blackboard after writing completely, main story button or the reversion of contact starting switch are pressed Button starts motor and drives central gear rotation, and central gear drives planetary gear rotation, and planetary gear drives gear ring rotation And drive inner press roll to rotate forward or backwards；Drive belt type blackboard positive in rotating roller when inner press roll rotates forward or backwards or Rotate backward, when belt type blackboard rotates forward or backwards in rotating roller, the writing in the one side at the back side for rotating to blackboard During the position wiped by fixed outer, inner press roll is withstood in the inside of belt type blackboard to stand fast inside the back side of blackboard and allows fixation The scraping sub-sections of outer wiping wipe the writing on the blackboard back side off, and belt type blackboard can all be fixed outer wipe by the fixed outer part wiped Except clean；Disconnecting power supply circuit after blackboard is wiped clean, after the main story button or reversion button that unclamp contact starting switch makes electricity Motivation shuts down, and completes the auto-erasing of the writing on blackboard；When fixing outer erase the board, wiped off by the way of striking off Writing on blackboard, when striking off the writing on blackboard, fixed outer erasure does not have air flow to produce wind, and chalk dust is certainly So sink and drop in disposable box, make there is no the winged of chalk dust to flutter in classroom.

2. rotary assembled automatic character-erazing environment friendly blackboard according to claim 1, it is characterised in that：In order that fixed outer wiping Wiped when erasing the board totally, the one side erased the board wiped outside described fixation can also be manufactured as rubber using elastomeric material Scraping blade.