CN203267560U

CN203267560U - White board

Info

Publication number: CN203267560U
Application number: CN 201320280160
Authority: CN
Inventors: 陈浩; 陶文华; 李兆春
Original assignee: Jiangsu Redleaf Audio and Visual Equipment Co Ltd
Current assignee: Jiangsu Redleaf Audio and Visual Equipment Co Ltd
Priority date: 2013-05-22
Filing date: 2013-05-22
Publication date: 2013-11-06
Anticipated expiration: 2023-05-22

Abstract

The utility model discloses a white board which is suitable for occasions, such as teaching and meetings. A short frame is embedded on the short edge of the white board, a long frame is embedded on the long edge of the white board, the short frame and the long frame form a frame in a surrounding mode through an angle sleeved component, and the white board is composed of a foamed plate and a galvanized plate in a laminating mode. The galvanized plate covers the outer surface of the foamed plate, at least two layers of polyurethane coatings further coat the surface, far away from the foamed plate, of the galvanized plate, and a base plate is fixedly connected with an outer frame body of the frame and enables the foamed plate to be sealed in the frame. With the structure, the white board is good in reflectance, good in wiping effect, capable of being used as a projection curtain, and quite convenient to use.

Description

A kind of blank

Technical field

The utility model relates to a kind of educational aid, particularly a kind of not only erasable, but also the blank of projectable.

Background technology

In occasions such as teaching, meetings, blackboard is essential, but uses in the process of blackboard, can produce a lot of dust, dust fly upward the great environment that has affected study, work everywhere, people healthy caused certain injury.Blank can not produce again the operating characteristic of a lot of dust because of easily writing, easily wiping, and has replaced gradually blackboard, is widely used by people.Often use at present following two kinds of blanks: one, the good blank of surface reflection degree, can there be pore on the surface, when using white board marker to write, can stay trickle written trace on blank, wiping effect is undesirable; Two, there is pore hardly in the good blank of wiping effect on the surface, when using white board writing, because the reflectance of blank is too high, affected the people's who watches blank visual effect.In addition, people can only write on blank usually, in writing process, carry out aided education etc. in conjunction with the projection data if necessary, need to configure in addition projection screen, the data to projection on curtain can not directly add note on curtain, can only explain to be projected in the data on curtain or to be positioned over to enclose on data paper on projecting apparatus by language and write, use inconvenient.

The utility model content

The technical problem of the required solution of the utility model is: provide that a kind of reflectance is good, wiping effect is good and can be used as the blank that projection screen uses.

For addressing the above problem, the technical solution adopted in the utility model is: a kind of blank described in the utility model, stud with short frame on blank minor face edge, blank studs with long margin frame on long edge, short frame and long margin frame are encircled into a framework by the cover angular component, blank is laminated by cystosepiment and galvanized sheet, galvanized sheet covers outside cystosepiment, on galvanized sheet, away from also being coated with two-layer at least polyurethane coating on the surface of cystosepiment, base plate is fixedly connected with and cystosepiment is enclosed in framework with the outer rim of framework.

Further, aforesaid a kind of blank, wherein, the top middle portion that is positioned at the long margin frame of blank top also is provided with handle.

The beneficial effects of the utility model are: be coated with two-layer at least polyurethane coating on galvanized sheet, improve the quality of whiteboard surface, can guarantee the reflectance of blank and good wiping effect, again can be directly to the blank projection, do not need projection screen is set in addition, very easy to use.

Description of drawings

Fig. 1 is the structural representation of a kind of blank described in the utility model.

Fig. 2 is the structural representation of A-A section in Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, technical scheme described in the utility model is described in further detail.

as Fig. 1, shown in Figure 2, a kind of blank described in the utility model, stud with short frame 32 on the minor face edge of blank 4, stud with long margin frame 31 on the long edge of blank 4, short frame 32 and long margin frame 31 are encircled into a framework by four cover angular components 2, blank 4 is fixed in framework, blank 4 is laminated by cystosepiment 41 and galvanized sheet 42, galvanized sheet 42 covers cystosepiment 41 outsides, be coated with the first polyurethane coating 43 on the surface away from cystosepiment 41 on galvanized sheet 42, be coated with the second polyurethane coating 44 on the first polyurethane coating 43, can apply on galvanized sheet 42 as required in actual production and be no less than two-layer polyurethane coating, base plate 5 is connected on the outer rim of framework by screw 6 or other securing member, cystosepiment 41 is enclosed in framework, the top middle portion that is positioned at the long margin frame 31 of blank top is provided with handle 1, can easily blank be carried or hang, in actual production, can also on base plate 5, hook be set, be used for hanging blank.

The blank of said structure, be coated with the first polyurethane coating 43 and the second polyurethane 44 on galvanized sheet 42, improved the quality on blank 4 surfaces, make blank 4 surfaces both have good reflectance, has again good wiping effect, and, in use, can also use blank 4 to substitute projection screen, directly projection is projected on blank 4, does not need to arrange in addition projection screen, when the projection data is needed to explain that doubling-up is write in detail, can also use white board marker directly to enclose on the projected position of required note and write, very easy to use.

Claims

1. blank, stud with short frame on blank minor face edge, blank studs with long margin frame on long edge, short frame and long margin frame are encircled into a framework by the cover angular component, it is characterized in that: blank is laminated by cystosepiment and galvanized sheet, galvanized sheet covers outside cystosepiment, and on galvanized sheet, away from also being coated with two-layer at least polyurethane coating on the surface of cystosepiment, base plate is fixedly connected with and cystosepiment is enclosed in framework with the outer rim of framework.

2. according to a kind of blank claimed in claim 1, it is characterized in that: the top middle portion that is positioned at the long margin frame of blank top also is provided with handle.