Writing film for teaching and frameless blue board

Abstract

The utility model relates to a teaching appliance, and particularly discloses a writing film and a frameless blue board for teaching, which comprise a writing layer and a protective layer, the front side of the writing layer can be subjected to matte treatment and cannot reflect light, the back side of the writing layer is provided with back glue, and the back side of the writing layer can be attached to the protective layer. A plurality of vertical first scale marks are arranged on the back face of the protective layer, and scales are arranged at the positions corresponding to the first scale marks. According to the utility model, the writing film for teaching comprises the writing layer and the protective layer, the front surface of the writing layer is subjected to matte treatment and does not reflect light, so that after the writing layer of the writing film for teaching is arranged on the blue board, liquid chalk can be used for writing, the liquid chalk is good for writing and erasing and does not generate any dust, and in addition, the writing layer can adopt eye protection blue, so that the writing film is convenient to use. No harm is caused to eyes; in conclusion, the whole device is environment-friendly and dust-free, the health of teachers and students can be cared, electrified education equipment can be protected, and the campus teaching environment can be purified.

Description

Technical Field

[0001] The utility model relates to a teaching tool, in particular to a writing film for teaching, and further relates to a frameless blue board. Background Art

[0002] Existing traditional teaching writing boards such as traditional blackboards, green boards and white boards generally use chalk for writing. Chalk will generate a lot of dust during the teaching process, which has a great impact on the health of teachers and students.

[0003] Although some whiteboards can be written on with liquid pens, they reflect light, and the reflection is strong. Looking at the whiteboard for a long time can cause damage to students' eyes, making them unsuitable for teaching. Furthermore, the various components of the whiteboard are integrated, so when replacing the whiteboard, the entire whiteboard must be replaced, which is inconvenient.

[0004] In view of this, it is necessary to develop a teaching writing film to solve the problems of the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a teaching writing film, which solves the problems existing in the prior art. In addition, the utility model also provides a frameless blue board, which can be used in conjunction with the teaching writing film.

[0006] According to one aspect of the utility model, a teaching writing film is provided, comprising a writing layer and a protective layer. The front side of the writing layer can be matte-finished. The material of the writing layer comprises PET and is non-reflective. The back side of the writing layer is provided with adhesive. The back side of the writing layer can be attached to the protective layer. The back side of the protective layer is provided with a plurality of vertical first scale lines, and scales are provided at positions corresponding to the first scale lines.

[0007] In some embodiments, the distance between two adjacent first scale lines is 1 cm. Thus, a teaching writing film of corresponding length can be obtained by following the first scale lines.

[0008] In some embodiments, a plurality of vertical first auxiliary lines are further provided on the back of the writing layer, and the first auxiliary lines are dotted line marks. Thus, the length of the teaching writing film can be made more accurate through the first auxiliary lines.

[0009] In some embodiments, the back of the writing layer is further provided with a plurality of transversely arranged second scale lines, with scales provided at corresponding positions of the second scale lines, and the distance between two adjacent second scale lines is 1 cm. Thus, a teaching writing film of corresponding width can be obtained by following the second scale lines.

[0010] In some embodiments, the back of the writing layer is further provided with a plurality of horizontally arranged second auxiliary lines, which are dashed lines. The distance between two adjacent first auxiliary lines is 0.25 cm, and the distance between two adjacent second auxiliary lines is 0.25 cm. Thus, the second auxiliary lines can make the width of the teaching writing film more accurate.

[0011] According to another aspect of the utility model, a frameless blue board is provided, including a blue board main body and two movable blue boards, the blue board main body and the movable blue boards are both provided with a writing film for teaching, and the back of the writing layer is provided on the blue board main body and the two movable blue boards through adhesive; the blue board main body includes an upper frame, a lower frame and a board body, no frame is provided on both sides of the board body, the board body is fixed between the upper frame and the lower frame, and the movable blue board can move along the upper frame and the lower frame.

[0012] In some embodiments, a blocking portion is provided at both left and right ends of the upper frame and the lower frame, and the blocking portion can resist the movable blue plate so that the movable blue plate cannot slide out from the blocking portion.

[0013] In some embodiments, a first groove and a second groove are provided on the upper and lower frames. The upper end of the plate is provided in the first groove of the upper frame, and the lower end of the plate is provided in the first groove of the lower frame. The upper end of the movable blue board is provided in the second groove of the upper frame, and the lower end of the movable blue board is provided in the second groove of the lower frame. The movable blue board can move along the second groove. Thus, by providing the second groove, the movable blue board can be slid to a designated position, facilitating teaching.

[0014] In some embodiments, the blocking portion is a protruding component.

[0015] The beneficial effects of the present invention are as follows: in the present invention, the teaching writing film includes a writing layer and a protective layer, and the front side of the writing layer is matte-treated and does not reflect light. Therefore, when the writing layer of the teaching writing film is set on a blue board, liquid chalk can be written, and the liquid chalk is easy to write and erase, and does not generate any dust. In addition, the writing layer can adopt eye-protection blue, which does not harm the eyes. In summary, the present invention is environmentally friendly and dust-free as a whole, can protect the health of teachers and students, protect electronic teaching equipment, and purify the campus teaching environment.

[0016] In addition, when setting up a teaching writing film on a frameless blue board, first determine the length and width of the blue board main body and the two movable blue boards. Since the first scale line, the second scale line, the first auxiliary line and the second auxiliary line are set on the back of the protective layer, the teaching writing film of the specified length and width can be cut out and the writing layer can be attached to the blue board main body and the two movable blue boards. There is no need to measure the width of the teaching writing film and draw lines on site, and the construction is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a teaching writing film according to one embodiment of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the protective layer in the teaching writing film shown;

[0019] Figure 3 for Figure 2 The enlarged structural diagram of part A of the teaching writing film is shown;

[0020] Figure 4 This is a schematic diagram of the frameless blue board structure of an embodiment of the present utility model;

[0021] Figure 5 Based Figure 4 A partial structural diagram of a cross section of a borderless blue plate is shown;

[0022] Figure 6 for Figure 4 Schematic diagram of the structure of the lower border of the borderless blue board shown.

[0023] In the figure, 1-writing layer; 2-protective layer; 21-first scale line; 22-first auxiliary line; 23-second scale line; 24-second auxiliary line; 3-blue board body; 30-board body; 31a-upper frame; 31b-lower frame; 32-first groove; 33-second groove; 4-movable blue board; 5-blocking part. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Figures 1 to 3 The structure of a teaching writing film according to one embodiment of the present invention is schematically shown.

[0027] Figures 4 to 6The structure of a borderless blue board according to one embodiment of the present invention is schematically shown.

[0028] like Figures 1 to 3 As shown, a teaching writing film includes a writing layer 1 and a protective layer 2. The front side of the writing layer 1 is matte-finished. The main material of the writing layer is PET (PET is an existing material). The writing layer does not reflect light. The back side of the writing layer 1 is provided with adhesive, so that the back side of the writing layer 1 can be attached to the protective layer 2. The back side of the protective layer 2 is printed with multiple vertical first scale lines 21, and scale marks are provided at the corresponding positions of the first scale lines 21.

[0029] Specifically, from Figure 3 As can be seen in the figure, the distance between two adjacent first scale lines 21 is 1 cm. During use, a teaching writing film of a corresponding length can be obtained by passing through the first scale lines 21. In addition, in other embodiments, the distance between two adjacent first scale lines 21 can also be 1.5 cm. The distance between two adjacent first scale lines 21 can be set according to actual conditions.

[0030] In this embodiment, a plurality of vertical first auxiliary lines 22 are printed on the back of the protective layer 2. The first auxiliary lines 22 are dotted line marks. The first auxiliary lines 22 can make the length of the teaching writing film more accurate.

[0031] In this embodiment, a plurality of transversely arranged second scale lines 23 are printed on the back of the protective layer 2. Scales are provided at corresponding positions of the second scale lines 23. The distance between two adjacent second scale lines 23 is 1 cm. Through the second scale lines 23, a teaching writing film of corresponding width can be obtained.

[0032] In this embodiment, a plurality of horizontally arranged second auxiliary lines 24 are also printed on the back of the protective layer 2. The second auxiliary lines 24 are dotted lines. The distance between two adjacent first auxiliary lines 22 is 0.25 cm, and the distance between two adjacent second auxiliary lines 24 is 0.25 cm. The second auxiliary lines 24 can make the width of the teaching writing film more accurate. Of course, in other embodiments, the distance between two adjacent first auxiliary lines 22 can be 0.2 cm, and the distance between two adjacent second auxiliary lines 24 can also be 0.2 cm.

[0033] The following describes in detail how to use the first scale lines 21, the first auxiliary lines 22, the second scale lines 23, and the second auxiliary lines 24. For example, when attaching the writing layer 1 to a frameless blue board, first, the length and width of the blue board body 3 and the two movable blue boards 4 in the frameless blue board are known. For example, if the length of the movable blue board 4 is 70.5 cm and the width is 90.5 cm, then the length of the teaching writing film can be determined by passing through the first scale lines 21 and the first auxiliary lines 22, and the width of the teaching writing film can be determined by passing through the second scale lines 23 and the second auxiliary lines 24. In the present invention, the teaching writing film can be wound together in a "roll".

[0034] like Figures 4 to 6 As shown, a frameless blueboard includes a blueboard body 3 and two movable blueboards 4. Both the blueboard body 3 and the movable blueboard 4 are provided with a writing film for teaching. The back of the writing layer 1 is attached to the blueboard body 3 and the two movable blueboards 4 by adhesive. The blueboard body 3 includes an upper frame 31a, a lower frame 31b, and a board body 30. The left and right sides of the board body 30 are not provided with a frame. The movable blueboard 4 can be moved along the upper frame 31a and the lower frame 31b. After the movable blueboard 4 can be moved to a designated position, it can be more convenient for teaching.

[0035] like Figure 4 and Figure 6 As shown, a blocking portion 5 is provided at both the left and right ends of the upper frame 31a and the lower frame 31b. The blocking portion 5 is a convex component. Therefore, the blocking portion 5 can resist the movable blue plate 4, so that the movable blue plate 4 cannot slide out from the blocking portion 5.

[0036] like Figure 5 As shown, a first groove 32 and a second groove 33 are provided on the upper frame 31a and the lower frame 31b. The upper end of the plate body 30 can be installed in the first groove 32 of the upper frame 31a, and the lower end of the plate body 30 can be installed in the first groove 32 of the lower frame 31b. The upper end of the movable blue board 4 can be installed in the second groove 33 of the upper frame 31a, and the lower end of the movable blue board 4 can be installed in the second groove 33 of the lower frame 31b. The width of the movable blue board 4 is smaller than the width of the plate body 30. Therefore, the movable blue board 4 moves along the second groove 33. By setting the second groove 33, the movable blue board 4 can slide to the designated position, which is convenient for teaching.

[0037] In the utility model, the teaching writing film includes a writing layer 1 and a protective layer 2. The front side of the writing layer 1 is matte-finished and does not reflect light. Therefore, when the writing layer 1 of the teaching writing film is set on a blue board, liquid chalk can be used for writing. The liquid chalk is easy to write and erase and does not generate any dust. In addition, the writing layer 1 adopts eye-protecting blue, which is harmless to the eyes, environmentally friendly and dust-free, can protect the health of teachers and students, protect electronic teaching equipment, and purify the campus teaching environment.

[0038] When setting up a teaching writing film on a frameless blue board, first determine the length and width of the blue board main body 3 and the two movable blue boards 4. Since the first scale line 21, the second scale line 23, the first auxiliary line 22 and the second auxiliary line 24 are set on the back of the protective layer 2, the teaching writing film of the specified length and width can be cut out, and the writing layer 1 is attached to the blue board main body 3 and the two movable blue boards 4. There is no need to measure the width of the teaching writing film or mark it on site, and the construction is simple and convenient.

[0039] After using the borderless blue board for a period of time, the teaching writing films on the blue board body 3 and the two movable blue boards 4 can be torn off and replaced without replacing the entire borderless blue board, which greatly reduces subsequent maintenance costs.

[0040] The present invention is not limited to the above-mentioned optional implementation methods. Anyone can derive various other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that falls within the scope defined by the claims of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A teaching writing film, characterized in that: The invention comprises a writing layer (1) and a protective layer (2), wherein the front surface of the writing layer (1) is non-reflective, the back surface of the writing layer (1) is provided with adhesive, the back surface of the writing layer (1) can be attached to the protective layer (2), the back surface of the protective layer (2) is provided with a plurality of vertical first scale lines (21), and scales are provided at corresponding positions of the first scale lines (21), the front surface of the writing layer (1) is matte-finished, and the material of the writing layer (1) comprises PET.

2. The teaching writing film according to claim 1, characterized in that: The distance between two adjacent first scale lines (21) is 1 cm.

3. The teaching writing film according to claim 2, characterized in that: The back of the writing layer (1) is further provided with a plurality of vertical first auxiliary lines (22), wherein the first auxiliary lines (22) are dotted line marks.

4. The teaching writing film according to claim 3, characterized in that: The back of the writing layer (1) is further provided with a plurality of second scale lines (23) arranged transversely, and scales are provided at corresponding positions of the second scale lines (23), and the distance between two adjacent second scale lines (23) is 1 cm.

5. The teaching writing film according to claim 4, characterized in that: The back of the writing layer (1) is further provided with a plurality of second auxiliary lines (24) arranged transversely, wherein the second auxiliary lines (24) are dotted line marks, and the distance between two adjacent first auxiliary lines (22) is 0.25 cm, and the distance between two adjacent second auxiliary lines (24) is 0.25 cm.

6. A frameless blue board, characterized by: The invention comprises a blue board main body (3) and two movable blue boards (4), wherein the blue board main body (3) and the movable blue boards (4) are both provided with the teaching writing film according to claim 5, and the back side of the writing layer (1) of the teaching writing film is provided on the blue board main body (3) and the two movable blue boards (4) through adhesive backing; the blue board main body (3) comprises an upper frame (31a), a lower frame (31b) and a board body (30), and no frames are provided on the left and right sides of the board body (30), and the board body (30) is fixed between the upper frame (31a) and the lower frame (31b), and the movable blue board (4) can move along the upper frame (31a) and the lower frame (31b).

7. The frameless blue board according to claim 6, characterized in that: A blocking portion (5) is provided at both left and right ends of the upper frame (31a) and the lower frame (31b), and the blocking portion (5) can abut against the movable blue plate (4) so ​​that the movable blue plate (4) cannot slide out from the blocking portion (5).

8. The frameless blue board according to claim 7, characterized in that: The upper frame (31a) and the lower frame (31b) are both provided with a first groove (32) and a second groove (33); the upper end of the plate body (30) is provided in the first groove (32) of the upper frame (31a); the lower end of the plate body (30) is provided in the first groove (32) of the lower frame (31b); the upper end of the movable blue plate (4) is provided in the second groove (33) of the upper frame (31a); and the lower end of the movable blue plate (4) is provided in the second groove (33) of the lower frame (31b); and the movable blue plate (4) can move along the second groove (33).

9. The frameless blue board according to claim 8, characterized in that: The blocking portion (5) is a convex component.

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