Drawing board

Abstract

The drawing board comprises a first board body, a second board body and handles, the handles are fixed to the middles of the two ends of the side faces of the first board body and the second board body, inner cavities are formed in the two ends of the surface of the first board body and the two ends of the surface of the second board body, stand columns are fixed in the inner cavities, movable shafts are arranged on the outer sides of the stand columns, and the movable shafts are arranged on the outer sides of the stand columns. Transverse magnet blocks are fixed to one side of the outer surface of the first plate body and one side of the outer surface of the second plate body, longitudinal magnet blocks are fixed to the other side of the outer surface of the first plate body and the other side of the outer surface of the second plate body, mounting clamping holes are formed in the two ends of the side faces of the first plate body and the second plate body, and rubber rod plugs are arranged on the mounting clamping holes in a clamped mode. And the outer end of the rubber rod plug is connected with a connecting plate. According to the drawing board, the first board body and the second board body which can be overturned mutually can be used in cooperation with the connecting plate and the rubber rod plug, so that the first board body and the second board body can be conveniently unfolded, the use area of the drawing board is expanded, and the use effect of the drawing board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to architectural design, in particular to a drawing board. Background Art

[0002] In the process of architectural design, it is necessary to use a drawing board. Engineers can draw on the drawing board to draw the building structure for building construction. For existing architectural drawing boards, there are still some shortcomings, such as:

[0003] When the existing architectural drawing board is in use, the use area of ​​the architectural drawing board is fixed. When a larger design drawing is required, it is difficult to use. In addition, when the design paper is fixed on the drawing board, the traditional fixing mechanism is relatively complicated. For example, the authorized patent number CN210870375U discloses a drawing board for architectural engineering that is easy to fix. In the above document, the paperboard can be conveniently positioned by using a fixing mechanism and a clamping mechanism. Therefore, we propose a drawing board to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a drawing board to solve the problems that the existing architectural drawing board has a fixed use area when in use, is difficult to use when encountering larger design drawings, and the existing paper fixing mechanism is relatively complicated.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drawing board, comprising a first plate body, a second plate body and a handle, wherein the handles are fixed at the middle of the two ends of the side surfaces of the first plate body and the second plate body, inner cavities are opened at the two ends of the surface of the first plate body and the second plate body, and columns are fixed in the inner cavities, a movable shaft is arranged on the outer side of the column, and a limiting rod is fixed on the upper end of the movable shaft, a transverse magnet block is fixed on one side of the outer surface of the first plate body and the second plate body, and a longitudinal magnet block is fixed on the other side of the outer surface of the first plate body and the second plate body, mounting holes are opened at the two ends of the side surfaces of the first plate body and the second plate body, a rubber rod plug is clamped on the mounting hole, and the outer end of the rubber rod plug is connected to a connecting plate.

[0006] Preferably, the end of the first plate body is connected to the second plate body via a rotation axis, and the rotation angle range between the first plate body and the second plate body is 0-180°.

[0007] By adopting the above technical solution, the folding between the first plate body and the second plate body can be facilitated so as to expand the panel of the drawing board.

[0008] Preferably, the movable shaft and the column form a rotating telescopic connection, the longitudinal section of the movable shaft is arranged in a "cross" shape, the lower end of the movable shaft is elastically connected to the bottom end of the inner cavity through a spring, and the connection method between the lower end of the movable shaft and the spring is a rotating connection.

[0009] The above technical solution is adopted to facilitate the sliding of the movable shaft on the column. At the same time, the movable shaft and the spring at the bottom of the inner cavity can be used to facilitate the elasticity of the movable shaft in the inner cavity, so that the limiting rod on the surface of the movable shaft can squeeze and limit the paper to fix the paper.

[0010] Preferably, the limit rod is magnetically connected to both the transverse magnet block and the longitudinal magnet block, the transverse magnet block and the longitudinal magnet block are vertically distributed, and two groups of the limit rods are arranged on the left and right sides of the surfaces of the first plate body and the second plate body.

[0011] By adopting the above technical solution, the limiting rod can be conveniently magnetically connected with the longitudinal magnet block after being rotated and extruded, so as to facilitate the positioning of the limiting rod after rotation.

[0012] Preferably, two groups of rubber rod plugs are arranged on the connecting plate, and the two groups of rubber rod plugs and the connecting plate form a "concave" shape. The rubber rod plugs at both ends of the connecting plate form a snap connection with the mounting holes on the sides of the first plate body and the second plate body.

[0013] By adopting the above technical solution, the rubber rod plugs at both ends of the connecting plate can be engaged with the mounting holes on the sides of the first plate body and the second plate body so that the first plate body and the second plate body can be engaged and locked after being folded and unfolded, thereby improving the use effect of the drawing board.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the drawing board,

[0015] By using the first plate body and the second plate body that can be turned over to each other in conjunction with the connecting plate and the rubber rod plug, the first plate body and the second plate body can be unfolded to expand the use area of ​​the drawing board and improve the use effect of the drawing board;

[0016] The spring at the inner end of the movable shaft can be used in conjunction with a limiting rod, and the limiting rod can be used to squeeze the drawing paper laid on the board body under the action of the spring to fix the paper. The fixing structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the connecting plate and the first plate body and the second plate body of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the movable shaft and the column of the utility model;

[0020] Figure 4 It is a schematic diagram of the unfolded structure of the first plate body and the second plate body of the utility model.

[0021] In the figure: 1. first plate body; 2. second plate body; 3. rotating shaft; 4. handle; 5. movable shaft; 6. limit rod; 7. horizontal magnet block; 8. longitudinal magnet block; 9. mounting hole; 10. connecting plate; 11. rubber rod plug; 12. inner cavity; 13. column; 14. spring. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a drawing board, comprising a first board body 1, a second board body 2 and a handle 4, the handles 4 are fixed at the middle of the two ends of the side of the first board body 1 and the second board body 2, the end of the first board body 1 is connected to the second board body 2 through a rotating shaft 3, and the rotation angle range of the first board body 1 and the second board body 2 is 0-180°, which can facilitate the folding between the first board body 1 and the second board body 2, so as to expand the panel of the drawing board, the first board body 1 and the second board body 2 are provided with inner cavities 12 at both ends of the surface, and the inner cavity 12 is fixed with a column 13, and the outer side of the column 13 is provided with The movable shaft 5 is provided with a limit rod 6 fixed at the upper end of the movable shaft 5, and the movable shaft 5 is connected to the column 13 in a rotating telescopic manner. The longitudinal section of the movable shaft 5 is in a "cross" shape. The lower end of the movable shaft 5 is elastically connected to the bottom end of the inner cavity 12 through a spring 14, and the connection between the lower end of the movable shaft 5 and the spring 14 is a rotating connection, which is convenient for the movable shaft 5 to slide on the column 13. At the same time, the movable shaft 5 can be used in conjunction with the spring 14 at the bottom of the inner cavity 12 to facilitate the elasticity of the movable shaft 5 in the inner cavity 12, so that the limit rod 6 on the surface of the movable shaft 5 can squeeze and limit the paper, so as to fix the paper;

[0024] See also Figure 1-4, a transverse magnet block 7 is fixed on one side of the outer surface of the first plate body 1 and the second plate body 2, and a longitudinal magnet block 8 is fixed on the other side of the outer surface of the first plate body 1 and the second plate body 2, and the limit rod 6 is magnetically connected with the transverse magnet block 7 and the longitudinal magnet block 8. The transverse magnet block 7 and the longitudinal magnet block 8 are vertically distributed. The limit rod 6 is provided with two groups on the left and right sides of the surface of the first plate body 1 and the second plate body 2, which can facilitate the magnetic connection between the limit rod 6 and the longitudinal magnet block 8 after rotation and extrusion, so as to position the limit rod 6 after rotation. Both ends of the side surfaces of the first plate body 1 and the second plate body 2 are provided with mounting holes 9 for installation. A rubber rod plug 11 is snap-fitted on the card hole 9, and the outer end of the rubber rod plug 11 is connected to a connecting plate 10. Two groups of rubber rod plugs 11 are arranged on the connecting plate 10, and the two groups of rubber rod plugs 11 and the connecting plate 10 form a "concave" shape. The rubber rod plugs 11 at both ends of the connecting plate 10 are snap-fitted with the mounting card holes 9 on the sides of the first plate body 1 and the second plate body 2. The rubber rod plugs 11 at both ends of the connecting plate 10 can be snap-fitted with the mounting card holes 9 on the sides of the first plate body 1 and the second plate body 2 through the snap-fitting between the rubber rod plugs 11 at both ends of the connecting plate 10 and the mounting card holes 9 on the sides of the first plate body 1 and the second plate body 2, so that the first plate body 1 and the second plate body 2 can be snap-fitted and locked after being folded and unfolded, thereby improving the use effect of the drawing board.

[0025] Working principle: First, when in use, lay the architectural drawing paper on the surface of the first plate body 1, and rotate the limit rod 6 so that the movable shaft 5 at the end of the limit rod 6 rotates 90° on the column 13, so that the limit rod 6 is in a vertical state, so that the limit rod 6 can squeeze and position the paper under the action of the spring 14 below the movable shaft 5 for drawing work. The limit rod 6 is magnetically connected to the longitudinal magnet block 8 to facilitate the positioning of the limit rod 6 after rotation;

[0026] When the use area of ​​the drawing board needs to be expanded, the second board body 2 can be rotated 180°, and the rubber rod plugs 11 at both ends of the connecting plate 10 can be engaged with the mounting holes 9 on the sides of the first board body 1 and the second board body 2 to fix the first board body 1 and the second board body 2 after unfolding, thereby facilitating the use of the drawing board. This is the use principle of the drawing board.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A drawing board, comprising a first board body (1), a second board body (2) and a handle (4), characterized in that: A handle (4) is fixed at the middle of both ends of the side surface of the first plate body (1) and the second plate body (2); an inner cavity (12) is provided at both ends of the surface of the first plate body (1) and the second plate body (2), and a column (13) is fixed in the inner cavity (12); a movable shaft (5) is provided on the outer side of the column (13), and a limit rod (6) is fixed at the upper end of the movable shaft (5); a transverse magnet block (7) is fixed on one side of the outer surface of the first plate body (1) and the second plate body (2), and a longitudinal magnet block (8) is fixed on the other side of the outer surface of the first plate body (1) and the second plate body (2); mounting holes (9) are provided at both ends of the side surface of the first plate body (1) and the second plate body (2), a rubber rod plug (11) is provided on the mounting hole (9), and the outer end of the rubber rod plug (11) is connected to a connecting plate (10).

2. A drawing board according to claim 1, characterized in that: The end of the first plate body (1) is connected to the second plate body (2) via a rotating shaft (3), and the rotation angle range of the first plate body (1) and the second plate body (2) is 0-180°.

3. A drawing board according to claim 1, characterized in that: The movable shaft (5) and the column (13) form a rotational telescopic connection, the longitudinal section of the movable shaft (5) is arranged in a "cross" shape, the lower end of the movable shaft (5) is elastically connected to the bottom end of the inner cavity (12) through a spring (14), and the connection mode between the lower end of the movable shaft (5) and the spring (14) is a rotational connection.

4. A drawing board according to claim 1, characterized in that: The limiting rod (6) is magnetically connected to both the transverse magnet block (7) and the longitudinal magnet block (8); the transverse magnet block (7) and the longitudinal magnet block (8) are vertically distributed; and two groups of the limiting rods (6) are arranged on the left and right sides of the surfaces of the first plate body (1) and the second plate body (2).

5. A drawing board according to claim 1, characterized in that: Two groups of rubber rod plugs (11) are arranged on the connecting plate (10), and the two groups of rubber rod plugs (11) and the connecting plate (10) form a "concave" shape. The rubber rod plugs (11) at both ends of the connecting plate (10) are engaged with the mounting holes (9) on the side surfaces of the first plate body (1) and the second plate body (2).

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