CN2238150Y - Writing board with eraser - Google Patents

Abstract

The utility model discloses a liquid level writing board with eraser which relates to a writing board for teaching. The liquid level writing board with eraser solves the technical problems that an eraser and the writing board are made into a whole, the eraser is driven, light irradiates a transparent writing board, etc. The utility model is characterized in that the transparent writing board is arranged in a concave frame, the surface of the transparent writing board is coated with lightproof media and covered with transparent plastics, a rail groove is arranged on one side edge, the eraser with a coating board is installed on the frame edge of the rail groove through a shaft and a roller wheel, and the movement of the eraser is realized through a pulley wheel which is connected with the roller of a driver and a soft steel rope by hand shake. The utility model has the advantages of no powder dust, simple structure and convenient operation, protects environment and the health of teachers and students, and can be used for schools and departments of applying the writing board frequently.

Description

Have the liquid level clipboard that plate is pushed up

This practicality is newly moulded and is related to a kind of didactic works and write plate, and widely used wooden blackboard and cement face blackboard produce a large amount of chalk dusts when writing with wiping board at present, and numerous teachers and students' health is brought very big harm.The static blackboard of Chu Xianing afterwards, magnet board manufacturing cost height, also have electronic soft blackboard (CN2030149U), the trace blackboard (CN2075594U) that disappears has all adopted parts such as motor, gear, reductor automatically, complex structure, be difficult to promote the use of, dustless and wearless writing-board (87108209.8) is that blackboard and blackboard eraser separate, and uses inconvenient writing not too clear.

The purpose of this utility model provides a kind of blackboard eraser and clipboard is made one, realizes wiping board with the driven by shaking device, has the no dust liquid level clipboard of writing display lamp.The technical solution of the utility model is that clipboard comprises framework (2) transparent wordpad (6), shading medium (7), blackboard eraser (9), transparent plastic (8) blackboard eraser driver (1) and pulley (3), mild steel rope (4).The upper and lower side frame that is fixed on the wall of classroom is a convex shape, and left edge is Shape, right edge is smeared one deck grease shading medium (7) for the transparent wordpad (6) that light-permeable has been installed in the framework of " " shape on clipboard, cover layer of transparent plastic packets layer forming liquid face clipboard again on the surface of shading medium, having pulley track groove (18) along the side of convex shape edge convex surface up and down, be provided with blackboard eraser (9) by running roller and axle (12) thereof in the groove, blackboard eraser places below the plastics covering, several pulleys (3) have been installed on the outer step of convex shape edge, and pulley connects with the cylinder (28) of blackboard eraser driven by shaking device (1) on being fixed on wall by the blackboard eraser axle with the mild steel rope; Be installed in the neutral gear of asking formation of transparent wordpad in the framework and wall several fluorescent lamps (5) have been installed.

Excellent beneficial effect of the present utility model is: 1. without chalk, and no dust, free from environmental pollution.2. do not have complex parts, cost is low.3. blackboard eraser and clipboard one integral body realize applying medium with hand blackboard eraser, and is easy to use, is difficult for losing.4. owing to having adopted the irradiation of transparent wordpad and fluorescent lamp, so writing is clear.5. alleviated labour intensity.

Description of drawings.Fig. 1 is the half section overall schematic of clipboard.Fig. 2 shows total figure for A-A section among Fig. 1, Fig. 3 shows total figure for the B-B section among Fig. 1, Fig. 4 shows total figure for the C-C section among Fig. 1, and Fig. 5 is the D-D generalized section among the figure l, has represented when blackboard eraser moves that the plastic packets pull-up is from the situation of clipboard face under spring action.Fig. 6 is the outline drawing of blackboard eraser, and Fig. 7 is the E-E profile among Fig. 6, and figure B mixes the generalized section of wiping driver.

With relevant accompanying drawing in detail implementation detail of the present utility model is described in detail according to Fig. 1 below.

A kind of liquid level clipboard that has blackboard eraser comprises framework (2) transparent wordpad (6), shading medium (7), blackboard eraser (9), transparent plastic (8), blackboard eraser driver (1) and several pulleys (3), mild steel rope (4).Framework (2) is made up of up and down edge and left and right sides edge, and the side-glance shape of edge (23) is to run against the convex shape of putting to the right up and down, left edge (31) be last font without a head (

Shape), right edge (32) write for Chinese character turns over [portion's shape (] shape), there is interior step edge assembling back around forming the frame inner bottom part, edge and left edge bottom has outer step, top, two ends, the framework left and right sides that the spill framework of the no end of the blackboard eraser stops of cover plate (16) is arranged up and down.Have pulley track (18) along the side of convex shape edge protuberance up and down, framework can be used the steel welding forming, also available timber, and duroplasts is made; Be placed with one deck vibration-proof rubber pad (19) on the interior step of framework, the glass plate or the poly (methyl methacrylate) plate (6) of light-permeable have been installed on it, on four limits of glass plate press strip (26) is arranged, be screwed in the edge inboard, scribble shading medium (7) on the glass plate, blackboard eraser is installed on the big shield shape track (18), for easy for installation by its running roller (11) and axle (12), one end of track slot has a breach, installs behind the running roller to block with angle bar to get final product.Be surrounded by the wear-resisting transparent plastic of one deck (8) above the transparency glass plate, around it with roofing nail be fixed on frame shape adapt about two head heights, up and down on the low shaped as frame press strip (17) in both sides, the bottom of passing four roofing nails of press strip from four jiaos of press strips is connected with the quiet of spring (20) respectively, and the lower end of spring is separately fixed on the cover plate (16) at framework two ends.The both sides motion of shaped as frame press strip (17) is being held in the palm on the top of blackboard eraser its two ends end cap (10) when motion all the time, when blackboard eraser moves to the left end of clipboard or right-hand member, back down spring (20) and enter the park, transparent plastic (8) is along with spring is raised, and is in the state of can writing on the clipboard along with resetting of spring covers again; On the step of edge and left edge outside up and down, several pulleys (3) have been installed by screw shaft, for preventing the mutual interference of two steel cable phases, 8 pulleys on the step of the left side are dressed up inside and outside two rows and are to become symmetry under the Your Majesty with the longitudinal centre line, 4 pulleys near the cylinder place are circular array, respectively adorn a pulley on the right on the inferior horn, the setting height(from bottom) of four pulleys in left end the inside is consistent with the height of the inside cylinder.Blackboard eraser driver (1) is fixed on the wall of a clipboard left side or right-hand member, two mild steel ropes (4) on two cylinder are connected on 4 annulus (33) on both sides, front and back, blackboard eraser axle (12) two ends by each pulley, realized the side-to-side movement of blackboard eraser, wherein the center height of two annulus in front is high consistent with the center of 4 left lateral pulleys of control.

Blackboard eraser is made up of shell (24), axle (12), running roller (11), blackboard eraser leaf (13), end cap (10) and shading medium (7), both sides are provided with two the rectangle blackboard eraser leaves (13) that connect with former and later two strut rails (25) in " " shape shell, axle (12) has vertically been fixed in the top middle part of its strut rail, shell (24) is screwed on axle (12) by the hole on its top, two end caps (10) are installed in the two ends of axle respectively with the hole of its side and the screw by its top is screwed on axle (12), cover the dual-side of shell; The two ends suit of axle (12) cylindrical two running rollers (11) of groove are arranged; Blackboard eraser is installed in two running roller on the guide rail of edge, and increase blackboard eraser area, the effect of floating shading medium are played in the lower edge (27) that shading medium (7), blackboard eraser are housed in the space of blackboard eraser.Blackboard eraser leaf (13) is made with the elastoplast plate or is connected a joint elastic rubber slab in the hardboard lower edge and forms, the lower edge of shell (24) is longer than in its lower end, there is certain elasticity its underpart because therefore two blackboard eraser leaves only connect from upper lateral, produce certain angle of inclination to travel direction during the blackboard eraser side-to-side movement, prevent from whole shading medium is blown off.Blackboard eraser driver (1) is by sleeve (21), hollow shaft (15), cylinder (28) ring flange (22), handle (14) is formed, be fixed on interior the suit of sleeve (21) in the wall of classroom the major part of hollow shaft (15) ring flange (22) that also will be sleeved on the hollow shaft microcephaly end face of sleeve (21) has been installed, hollow shaft can only be rotated and move axially, can not extract, on the small end of hollow shaft, installed side by side two of bi-directional symmetrical keyway cylinders (28) have been arranged in the hole, radially there is a square through hole corresponding at hollow shaft microcephaly's the place of keeping right, middle part with the keyway of cylinder (28), two elastic keys (29) that fuse with the two ends of spring (30) square groove that crosses hollow shaft is installed in the symmetrical keyway of cylinder respectively, for ease of the turnover of keyway, be processed with chamfering at the turnover two ends of key (29) and the inlet port of symmetrical keyway.In the time will changing the blackboard eraser moving direction, the keyway of two cylinders is aimed at (underlined definite) spring bending under radial force when back handle (14) promotes inward or pulls out, hollow shaft (15) even spring and key are moved together, keyway is placed in the keyway of arbitrary cylinder.Be installed in the neutral gear that transparent wordpad and between the walls in the framework (2) form and several fluorescent lamps (5) be installed, the medial surface of two edges about lamp socket can be fixed on.If changing the color of light color and shading medium when needing colored font gets final product.Lettering pen can be with round end pen wooden or that plastics are made, and soft-medium to the four sides separately, demonstrates identical wide writing with nib when writing on the plate face under the pressure of nib.Clipboard is installed on the bolt on the wall of predetermined fixed classroom with the hole on its four jiaos.

Claims (5)

1, the liquid level clipboard that has a blackboard eraser comprises framework (2), transparent wordpad (6), shading medium (7), blackboard eraser (9), transparent plastic (8), blackboard eraser driver (1) and pulley (3), mild steel rope (4), it is characterized in that.The upper and lower side frame that is fixed on the wall of classroom is a convex shape, and left edge is

Shape, right edge is "] " transparent wordpad (6) of light-permeable has been installed in the framework of shape, on clipboard, smear one deck grease shading medium (7), cover layer of transparent plastics (8) covering on the surface of shading medium again and form the liquid level clipboard, having pulley track groove (18) along the side of convex shape edge convex surface up and down, be provided with blackboard eraser (9) by running roller and axle (12) thereof in the groove, blackboard eraser places below the plastics covering, some pulleys (3) have been installed on the outer step of convex shape edge, and pulley connects with the cylinder (28) of blackboard eraser driven by shaking device (1) on being fixed on wall by blackboard eraser axle (12) with the mild steel rope; Be installed in the neutral gear of transparent wordpad and between the walls formation in the framework several fluorescent lamps (5) have been installed.

2, the liquid level clipboard that has blackboard eraser according to claim 1, it is characterized in that said blackboard eraser (9) is, both sides are provided with two the rectangle blackboard eraser leaves (13) that connect with former and later two strut rails (25) in " " shape shell (24), axle (12) has vertically been fixed in the top middle part of its strut rail, shell (24) is screwed on axle (12) by the hole on its top, and two end caps (10) are installed in the two ends of axle respectively with the hole of its side and the screw by its top is screwed the dual-side that covers shell on axle (12); The two ends suit of axle (12) cylindrical two running rollers (11) of groove are arranged, shading medium (7) is housed in the space of blackboard eraser.

3, the liquid level clipboard that has blackboard eraser according to claim 1, it is characterized in that, said blackboard eraser driver (1) is, be fixed on interior the suit of sleeve (21) in the wall of classroom the major part of hollow shaft (15) ring flange (22) that also will be sleeved on the hollow shaft microcephaly end face of sleeve (21) has been installed, on the small end of hollow shaft, pacified alpine rush or palm-bark rain cape side by side two cylinders (28) of bi-directional symmetrical keyway have been arranged in the hole, radially have a square through hole corresponding with the keyway of cylinder (28) at hollow shaft (15) microcephaly's the place of keeping right, middle part, two elastic keys (29) that fuse with the two ends of spring (30) square groove that crosses hollow shaft is installed in the symmetrical keyway of cylinder respectively.

4, the liquid level clipboard that has blackboard eraser according to claim 1, it is characterized in that said transparent plastic (8) around with roofing nail be fixed on frame shape adapt about two head heights, up and down on the low shaped as frame press strip (17) in both sides, the bottom of passing four roofing nails of press strip from four jiaos of press strips is connected with the upper end of spring (20) respectively, and the lower end of spring is separately fixed on the cover plate (16) at framework two ends.

5, the liquid level clipboard that has blackboard eraser according to claim 1 is characterized in that 8 pulleys on the step of framework (2) left side are dressed up inside and outside two rows and is to become symmetry under the Your Majesty with the longitudinal centre line, is circular array near 4 pulleys at cylinder place.

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