Combined push-pull green board

Abstract

The utility model discloses a combined push-and-pull green board which comprises a green board main frame and a main green board fixed in the rear end of the green board main frame, the main green board is flush with the outer wall of the rear end of the green board main frame, and an area increasing device is fixed at the rear end of the green board main frame. The novel area increasing device is additionally arranged at the rear end of the combined push-and-pull green board, the usable area of the combined push-and-pull green board can be further increased through the area increasing device, the usable area of the combined push-and-pull green board is increased mainly through the two area increasing green boards, and when the combined push-and-pull green board is not used, the combined push-and-pull green board is not used. When the combined push-and-pull green board is used, the two area-enlarged green boards can be pushed through the aluminum alloy frame and stored in the device, so that the appearance and use of the combined push-and-pull green board cannot be affected, and when the combined push-and-pull green board needs to be used, only the two area-enlarged green boards need to be pulled leftwards and rightwards respectively; the usable area of the whole combined push-and-pull green board can be slowly increased along with the increase of the exposed area of the two green boards with the increased area.

Description

Technical Field

[0001] The utility model belongs to the technical field related to teaching, and specifically relates to a combined push-pull green board. Background Art

[0002] The sliding green board, also known as the composite green board, is a new type of writing board that has become popular in schools across the country in the past two years. On the surface, the sliding green board is used in the same way as the ordinary teaching green board, but after pushing open the two boards blocking the outside, an interactive electronic whiteboard or LCD touch TV appears, which can realize electronic teaching. The greatest function of the sliding green board lies in this, which combines traditional teaching with modern teaching.

[0003] However, the writable content of the combined sliding green board is mainly on the main green board and multiple sliding small green boards. When the teaching content is very important, the writing area of ​​the main green board and the sliding small green board will be cramped. Once the content is completely written on multiple green boards but has not been completed, part of the content needs to be erased, which will interrupt important teaching content and affect teaching quality. Utility Model Content

[0004] The purpose of the utility model is to provide a combined push-pull green board to solve the problem raised in the above-mentioned background technology that when the teaching content is very important, the writing area of ​​the main green board and the push-pull small green board will be cramped. Once the content is completely written on multiple green boards but has not been written, part of the content needs to be erased, which will interrupt the important teaching content.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined sliding green board, comprising a green board main frame and a main green board fixed inside the rear end of the green board main frame, and the main green board is flush with the rear end outer wall of the green board main frame, the rear end of the green board main frame is fixed with an area enlarging device, and the combined sliding green board as a whole is installed and fixed on the wall through the area enlarging device;

[0006] The area enlarging device comprises an aluminum alloy frame A, a pull-out slot, an area enlarging green plate, an aluminum alloy main frame and an aluminum alloy frame B. The aluminum alloy main frame is fixed to the rear end of the green plate main frame by welding. Two pull-out slots are provided, and the two pull-out slots are respectively vertically arranged inside the left and right ends of the rear half of the aluminum alloy main frame. The aluminum alloy frame A is respectively inserted into the two pull-out slots from left to right and the aluminum alloy frame B is respectively inserted into the two pull-out slots from right to left, and the right end of the aluminum alloy frame A and the left end of the aluminum alloy frame B are both located inside the frame of the aluminum alloy main frame. Two green plates for enlarging the area are provided, and the two green plates for enlarging the area are respectively fixed inside the aluminum alloy frame A and the aluminum alloy frame B.

[0007] Preferably, the area increasing device also includes a sliding anti-slip block, a fixed block and a push-pull handle. Two push-pull handles are provided, and the two push-pull handles are respectively welded to the left end outer wall of the aluminum alloy frame A and the right end outer wall of the aluminum alloy frame B. The sliding anti-slip block is provided in two groups of four, and the four sliding anti-slip blocks are respectively welded to the top and bottom outer walls of the right end of the aluminum alloy frame A and the top and bottom outer walls of the left end of the aluminum alloy frame B.

[0008] Preferably, the fixing blocks are provided in plurality, and the fixing blocks are respectively provided in two groups with the same number and are symmetrically welded on the upper and lower outer walls of the aluminum alloy main frame, and the fixing blocks need to be fixed on the wall by expansion screws.

[0009] Preferably, the thickness of the aluminum alloy frame A and the aluminum alloy frame B is the same as the thickness of the green plate with increased area, and the aluminum alloy frame A and the aluminum alloy frame B can move left and right in the corresponding pull-out slots, respectively.

[0010] Preferably, push-pull slots A and B are provided inside the inner walls at both ends of the green board main frame, and the two push-pull slots A are respectively located on the rear sides of the two push-pull slots B, and the depths of the push-pull slots A and B inside the top end of the green board main frame are respectively greater than the depths of the push-pull slots A and B inside the bottom end.

[0011] Preferably, a push-pull green board A is arranged between the two push-pull slots A, and a push-pull green board B is arranged between the two push-pull slots B, and the push-pull green board A can slide left and right through the two push-pull slots A, and the push-pull green board B can slide left and right through the two push-pull slots B.

[0012] Preferably, the sliding green board A and the sliding green board B are the same in shape, size and structural composition, and are both composed of a sliding green board frame, a small-area green board and displacement balls, wherein the small-area green board is fixed inside the sliding green board frame, and multiple displacement balls are arranged inside the upper and lower ends of the sliding green board frame, and one-quarter of each displacement ball is exposed outside the outer wall of the sliding green board frame.

[0013] Compared with the prior art, the utility model provides a combined sliding green board, which has the following beneficial effects:

[0014] The utility model adds a novel area enlarging device to the rear end of the combined push-pull green board, and the area enlarging device mainly increases the thickness of the combined push-pull green board without affecting the normal installation and normal use of the combined push-pull green board. The use area of ​​the combined push-pull green board can be further increased by the area enlarging device. The device mainly increases the use area of ​​the combined push-pull green board through two area enlarging green boards. When not in use, the two area enlarging green boards will be pushed and stored inside the device through the aluminum alloy frame, so as not to affect the appearance and use of the combined push-pull green board. When it is needed to be used, the two area enlarging green boards only need to be pulled left and right respectively. As the exposed area of ​​the two area enlarging green boards increases, the use area of ​​the entire combined push-pull green board will be slowly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of a three-dimensional structure of a combined push-pull green board.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of a small-area sliding green board of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the area enlarging device of the utility model.

[0018] In the figure: 1. Green board main frame; 2. Push-pull green board A; 3. Push-pull slide A; 4. Push-pull slide B; 5. Main green board; 6. Push-pull green board B; 7. Area enlargement device; 8. Push-pull green board frame; 9. Small area green board; 10. Displacement ball; 11. Aluminum alloy frame A; 12. Pull-out notch; 13. Green board with enlarged area; 14. Sliding anti-slip block; 15. Aluminum alloy main frame; 16. Aluminum alloy frame B; 17. Fixed block; 18. Push-pull handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides Figure 1-3A combined push-pull green board shown in the figure comprises a green board main frame 1 and a main green board 5 fixed inside the rear end of the green board main frame 1, and the main green board 5 is flush with the outer wall of the rear end of the green board main frame 1, and push-pull grooves A3 and push-pull grooves B4 are arranged inside the inner walls of the upper and lower ends of the green board main frame 1, and the two push-pull grooves A3 are respectively located at the rear sides of the two push-pull grooves B4, and the depths of the push-pull grooves A3 and the push-pull grooves B4 inside the top end of the green board main frame 1 are respectively greater than the depths of the push-pull grooves A3 and the push-pull grooves B4 inside the bottom end. The depth of the pull chute A3 and the push-pull chute B4, a push-pull green board A2 is arranged between the two push-pull chute A3, a push-pull green board B6 is arranged between the two push-pull chute B4, and the push-pull green board A2 can slide left and right through the two push-pull chute A3, and the push-pull green board B6 can slide left and right through the two push-pull chute B4, the push-pull green board A2 and the push-pull green board B6 have the same shape, size and structural composition, and the push-pull green board A2 and the push-pull green board B6 are both composed of a push-pull green board frame 8, a small surface The green board 9 and the displacement ball 10 are constituted together, wherein the small-area green board 9 is fixed inside the push-pull green board frame 8, and a plurality of displacement balls 10 are arranged inside the upper and lower ends of the push-pull green board frame 8, and a quarter of the body of each displacement ball 10 is exposed outside the outer wall of the push-pull green board frame 8. When using the combined push-pull green board, it is first necessary to determine the installation position of the combined push-pull green board on the wall, and then install and fix the combined push-pull green board on the wall through a plurality of fixing blocks 17 on the area increasing device 7 and a plurality of expansion screws. After installation, the combined push-pull green board can be used normally. When writing content on the green board, the content can be written vertically on the main green board 5, or on the push-pull green board A2 and the push-pull green board B6. If the two push-pull green boards block the content on the main green board 5, the push-pull green board A2 and the push-pull green board B6 can be slid left or right to expose the content to be displayed on the main green board 5.

[0021] like Figure 1 and Figure 3 As shown, an area enlarging device 7 is fixed to the rear end of the green board main frame 1, and the combined push-pull green board is installed and fixed on the wall as a whole through the area enlarging device 7. The area enlarging device 7 includes an aluminum alloy frame A11, a pull-out slot 12, an area enlarging green board 13, an aluminum alloy main frame 15 and an aluminum alloy frame B16. The aluminum alloy main frame 15 is fixed to the rear end of the green board main frame 1 by welding. Two pull-out slots 12 are provided, and the two pull-out slots 12 are vertically arranged inside the left and right ends of the rear half of the aluminum alloy main frame 15, respectively. The aluminum alloy frame A11 is inserted into the two pull-out slots 12 from left to right and the aluminum alloy frame B16 is inserted into the two pull-out slots 12 from right to left, respectively, and the right end of the aluminum alloy frame A11 and the left end of the aluminum alloy frame B16 are both located inside the frame of the aluminum alloy main frame 15. Two area enlarging green boards 13 are provided, and the two area enlarging green boards 13 are fixed inside the aluminum alloy frame A11 and the aluminum alloy frame B16, respectively.

[0022] Furthermore, the area enlarging device 7 also includes a sliding anti-slip block 14, a fixed block 17 and a push-pull handle 18. Two push-pull handles 18 are provided, and the two push-pull handles 18 are respectively welded on the left end outer wall of the aluminum alloy frame A11 and the right end outer wall of the aluminum alloy frame B16. There are two groups of four sliding anti-slip blocks 14, and the four sliding anti-slip blocks 14 are respectively welded on the top and bottom outer walls of the right end of the aluminum alloy frame A11 and the top and bottom outer walls of the left end of the aluminum alloy frame B16. There are multiple fixed blocks 17, and two groups of the same number of multiple fixed blocks 17 are symmetrically welded on the upper and lower end outer walls of the aluminum alloy main frame 15, and the multiple fixed blocks 17 need to be fixed to the wall by expansion screws. The thickness of the aluminum alloy frame A11 and the aluminum alloy frame B16 is the same as the thickness of the area enlarging green plate 13. The aluminum alloy frame A11 and the aluminum alloy frame B16 can move left and right in the corresponding pull-out slots 12 respectively. When it is necessary to use the enlarged area When the area device 7 is used to further increase the use area of ​​the green board, for example, the operation uses the enlarged area green board 13 inside the aluminum alloy frame A11. When not in use, the aluminum alloy frame A11 is completely stored inside the left half of the aluminum alloy main frame 15. When it is needed, just grab the push-pull handle 18 on the outer wall of the left end of the aluminum alloy frame A11 and pull it to the left. In this way, the aluminum alloy frame A11 will be slowly pulled out to the left side through the pull-out slot 12, until the enlarged area green board 13 exposed outside the left end of the green board main frame 1 reaches the area to be increased, and then the content can be written on the exposed enlarged area green board 13. Because the sliding anti-detachment blocks 14 are fixed on the outer walls of the upper and lower ends of the right end of the aluminum alloy frame A11, and the distance between the outer walls of the two sliding anti-detachment blocks 14 is greater than the length of the pull-out slot 12, a blocking effect can be formed to prevent the aluminum alloy frame A11 from being completely pulled out of the aluminum alloy main frame 15.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined push-pull green board, comprising a green board main frame (1) and a main green board (5) fixed inside the rear end of the green board main frame (1), wherein the main green board (5) is flush with the rear end outer wall of the green board main frame (1), characterized in that: An area enlarging device (7) is fixed to the rear end of the green board main frame (1), and the combined push-pull green board as a whole is installed and fixed on the wall through the area enlarging device (7); The area enlarging device (7) comprises an aluminum alloy frame A (11), a pull-out notch (12), an area enlarging green plate (13), an aluminum alloy main frame (15) and an aluminum alloy frame B (16); the aluminum alloy main frame (15) is fixed to the rear end of the green plate main frame (1) by welding; two pull-out notches (12) are provided, and the two pull-out notches (12) are respectively vertically arranged inside the left and right ends of the rear half of the aluminum alloy main frame (15); the aluminum alloy frame A (11) is inserted into the two pull-out notches (12) from left to right and the aluminum alloy frame B (16) is inserted into the two pull-out notches (12) from right to left, and the right end of the aluminum alloy frame A (11) and the left end of the aluminum alloy frame B (16) are both located inside the frame of the aluminum alloy main frame (15); two area enlarging green plates (13) are provided, and the two area enlarging green plates (13) are respectively fixed inside the aluminum alloy frame A (11) and the aluminum alloy frame B (16).

2. A combined sliding green board according to claim 1, characterized in that: The area enlarging device (7) further comprises a sliding anti-slip block (14), a fixed block (17) and a push-pull handle (18). Two push-pull handles (18) are provided, and the two push-pull handles (18) are respectively welded to the left end outer wall of the aluminum alloy frame A (11) and the right end outer wall of the aluminum alloy frame B (16). The sliding anti-slip block (14) is provided in two groups, a total of four, and the four sliding anti-slip block (14) are respectively welded to the top and bottom outer walls of the right end of the aluminum alloy frame A (11) and the top and bottom outer walls of the left end of the aluminum alloy frame B (16).

3. A combined sliding green board according to claim 2, characterized in that: The fixing blocks (17) are provided in plurality, and two groups of the same number of the fixing blocks (17) are symmetrically welded to the upper and lower outer walls of the aluminum alloy main frame (15), and the fixing blocks (17) need to be fixed to the wall surface by expansion screws.

4. A combined sliding green board according to claim 1 or 2, characterized in that: The thickness of the aluminum alloy frame A (11) and the aluminum alloy frame B (16) is the same as the thickness of the green plate (13) with an increased area, and the aluminum alloy frame A (11) and the aluminum alloy frame B (16) can move left and right in the corresponding pull-out slots (12) respectively.

5. The combined sliding green board according to claim 1, characterized in that: The inner walls of the upper and lower ends of the green board main frame (1) are both provided with push-pull grooves A (3) and push-pull grooves B (4), and the two push-pull grooves A (3) are respectively located at the rear sides of the two push-pull grooves B (4), and the depths of the push-pull grooves A (3) and the push-pull grooves B (4) inside the top end of the green board main frame (1) are respectively greater than the depths of the push-pull grooves A (3) and the push-pull grooves B (4) inside the bottom end.

6. The combined sliding green board according to claim 5, characterized in that: A push-pull green board A (2) is arranged between the two push-pull slide grooves A (3), and a push-pull green board B (6) is arranged between the two push-pull slide grooves B (4). The push-pull green board A (2) can slide left and right through the two push-pull slide grooves A (3), and the push-pull green board B (6) can slide left and right through the two push-pull slide grooves B (4).

7. The combined sliding green board according to claim 5, characterized in that: The push-pull green board A (2) and the push-pull green board B (6) are of the same shape, size and structural composition. The push-pull green board A (2) and the push-pull green board B (6) are both composed of a push-pull green board frame (8), a small-area green board (9) and displacement balls (10), wherein the small-area green board (9) is fixed inside the push-pull green board frame (8), and a plurality of displacement balls (10) are arranged inside the upper and lower ends of the push-pull green board frame (8), and a quarter of the body of each displacement ball (10) is exposed outside the outer wall of the push-pull green board frame (8).

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