Drawing board

Abstract

The utility model belongs to the field of drawing boards, particularly relates to a drawing board, and provides the following scheme aiming at the problem that the existing drawing board is inconvenient to adjust: the drawing board comprises a bottom plate and a supporting seat, supporting rods are fixedly mounted at four corners of the bottom of the supporting seat, and the other ends of the supporting rods are fixedly connected with the surface of the bottom plate; a screw rod is arranged on the supporting seat, a first connecting rod is rotatably connected to one end of the supporting seat, a placing plate is fixedly installed on the circumference of the first connecting rod, positioning plates are installed on the top of a sliding block on the circumference of the screw rod and the bottom of the placing plate, and the same positioning rod is fixedly installed on the sides, close to each other, of the positioning plates. And the same second connecting rod is rotatably mounted between the two positioning rods, the pushing force generated when the sliding blocks move enables the placing plate to rotate, the drawing board can be adjusted according to the drawing condition, the trapezoidal plate descends to make contact with the ground while the sliding blocks move, and the device is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing boards, in particular to a drawing board. Background Technique

[0002] Curtain wall engineering, as the general term for the installation and construction work of metal plates or safety glass used as building enclosure components and decorative panels, the metal plates or safety glass are fixed in the metal frame with bolts or rubber pads, and the gaps are filled with sealant to prevent water and heat insulation. Therefore, drawings must be made before each construction, and the construction must be carried out strictly according to the drawings. The drawings are generally drawn on a drawing board. However, the current drawing board is fixedly single, not convenient to adjust according to the situation during drawing, and it is not convenient to move.

[0003] Therefore, a drawing board is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantage that the drawing board is not convenient to adjust in the prior art, and a drawing board is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A drawing board includes a bottom plate and a support base. Four corners at the bottom of the support base are fixedly installed with support rods, and the other ends of the support rods are fixedly connected to the surface of the bottom plate. One end of the support base is rotatably connected with a first connecting rod, and a placement plate is fixedly installed on the circumference of the first connecting rod;

[0007] A driving assembly, the driving assembly includes a lead screw rotatably installed on the inner wall of the support base. A slider is threadedly connected to the circumference of the lead screw. Positioning plates are fixedly installed on the top of the slider and the bottom surface of the support base. Positioning rods are fixedly installed on the sides of the positioning plates close to each other. A second connecting rod is rotatably installed between the two positioning rods. A motor is fixedly installed on one side of the support base. The output shaft of the motor penetrates the support base and is fixedly connected to one end of the lead screw. A third connecting rod is fixedly installed at the bottom of the slider, and a roller is installed at the bottom of the third connecting rod;

[0008] A support assembly, the support assembly includes a trapezoidal plate slidably installed inside the bottom plate. A plurality of ring sleeves are fixedly installed on both sides of the trapezoidal plate. A plurality of guide rods are fixedly installed on the surface of the bottom plate. The plurality of guide rods are respectively slidably connected to the plurality of ring sleeves. Springs are fixedly connected between the plurality of ring sleeves and the plurality of guide rods.

[0009] In a possible design, a groove is provided on the surface of the trapezoidal plate, and the roller rolls in the groove.

[0010] In a possible design, a lighting lamp is fixedly installed at one end of the surface of the placing board, which is used to illuminate the drawing on the surface of the placing board.

[0011] In a possible design, a pen holder is fixedly installed on one side of the placing board, which is used to store drawing tools.

[0012] In a possible design, a storage box is fixedly installed on the surface of the support seat, which is used to store the drawings on the surface of the placing board.

[0013] In a possible design, a plurality of universal wheels are installed at the bottom of the bottom plate, and a push handle is fixedly installed on the other side of the support seat. The push handle is used in cooperation with the universal wheels to move and turn the device.

[0014] In a possible design, pressing plates are rotatably connected to both sides of the placing board, which are used to fix the drawings on the surface of the placing board.

[0015] In this application, when drawing is needed, the push handle is pushed to move the device. When it moves to the designated position, the motor is started. The motor drives the lead screw to rotate, and the slider on the outer wall of the lead screw moves. Positioning plates are installed at the top of the slider and the bottom of the placing board. Positioning rods are installed on the inner walls of the positioning plates. The two positioning rods are rotatably connected by a second connecting rod. When the slider moves, the thrust generated by the second connecting rod makes the placing board rotate. When the slider moves, the third connecting rod at the bottom of the slider moves synchronously. The rollers at the bottom of the third connecting rod move along the grooves on the surface of the trapezoidal plate. The pressure generated by the rollers makes the trapezoidal plate slide downwards. When the rollers enter the flat surface through the inclined surface of the groove, the trapezoidal plate descends to the final position and contacts the ground, making the device more stable while the placing board rotates. Subsequently, the placing board can be adjusted according to the drawing situation. When it is adjusted to the designated position, the drawing is laid flat on the surface of the placing board, and the drawing is fixed by the pressing plate on the side of the placing board. The paintbrush is taken out from the pen holder on the side of the support seat for drawing. If the light is insufficient, the lighting lamp on one side of the surface of the placing board can be turned on for illumination. After the drawing is completed, the drawing can be taken out and put into the storage box for collection.

[0016] Beneficial effects:

[0017] In the present utility model, for the drawing board, positioning plates are installed at the top of the slider on the circumference of the lead screw and the bottom of the placing board. The same positioning rod is fixedly installed on the side of the positioning plates close to each other. The same second connecting rod is rotatably installed between the two positioning rods. The thrust generated when the slider moves makes the placing board rotate, and the drawing board can be adjusted according to the situation during drawing;

[0018] In the present utility model, for the described drawing board, a third connecting rod is installed at the bottom of the slider, and a roller is installed at the bottom of the third connecting rod. By moving the roller, the trapezoidal plate descends until the ground surface of the trapezoidal plate contacts the ground, making the placement plate more stable during rotation and preventing the device from shaking during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of the main body of a drawing board proposed by the present utility model;

[0020] Figure 2 FIG. 7 is a three-dimensional structural schematic diagram of the main body of a drawing board proposed by the present utility model during operation;

[0021] Figure 3 FIG. 8 is a rear three-dimensional structural schematic diagram of the main body of a drawing board proposed by the present utility model;

[0022] Figure 4 FIG. 9 is a partial three-dimensional structural schematic diagram of a drawing board proposed by the present utility model.

[0023] In the figures: 1, bottom plate; 2, support rod; 3, support base; 4, placement plate; 5, motor; 6, pressing plate; 7, lighting lamp; 8, push handle; 9, universal wheel; 10, trapezoidal plate; 11, first connecting rod; 12, lead screw; 13, storage box; 14, pen holder; 15, slider; 16, positioning rod; 17, second connecting rod; 18, third connecting rod; 19, roller; 20, circular ring sleeve; 21, guide rod; 22, spring; 23, positioning plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Embodiment 1

[0026] Referring to Figures 1-4 , a drawing board includes: a bottom plate 1 and a support base 3. Four corners at the bottom of the support base 3 are fixedly installed with support rods 2, and the other ends of the support rods 2 are fixedly connected to the surface of the bottom plate 1. One end of the support base 3 is rotatably connected to a first connecting rod 11, and a placement plate 4 is fixedly installed on the circumference of the first connecting rod 11;

[0027] It further includes a driving component. The driving component includes a lead screw 12 rotatably installed on the inner wall of the support base 3. A slider 15 is threadedly connected to the circumference of the lead screw 12. Positioning plates 23 are fixedly installed on the top of the slider 15 and the bottom surface of the support base 3 respectively. Positioning rods 16 are fixedly installed on the sides of the positioning plates 23 close to each other. A second connecting rod 17 is rotatably installed between the two positioning rods 16. A motor 5 is fixedly installed on one side of the support base 3. The output shaft of the motor 5 penetrates through the support base 3 and is fixedly connected to one end of the lead screw 12. A third connecting rod 18 is fixedly installed at the bottom of the slider 15. A roller 19 is installed at the bottom of the third connecting rod 18;

[0028] It further includes a support component. The support component includes a trapezoidal plate 10 slidably installed inside the bottom plate 1. A plurality of ring sleeves 20 are fixedly installed on both sides of the trapezoidal plate 10. A plurality of guide rods 21 are fixedly installed on the surface of the bottom plate 1. The plurality of guide rods 21 are respectively slidably connected to the plurality of ring sleeves 20. Springs 22 are fixedly connected between the plurality of ring sleeves 20 and the plurality of guide rods 21.

[0029] In this embodiment, positioning plates 23 are installed on the top of the slider 15 and the bottom of the placement plate 4 respectively. A second connecting rod 17 is rotatably connected between the two positioning plates 23. The motor 5 drives the lead screw 12 to rotate, and the slider 15 moves. The thrust generated during the movement is transmitted to the placement plate 4 through the second connecting rod 17, causing the placement plate 4 to rotate. At the same time, the third connecting rod 18 drives the bottom roller 19 to move. The roller 19 rolls on the trapezoidal plate 10, and the trapezoidal plate 10 is lowered by the generated pressure until it contacts the ground, making the device more stable. When the drawing is completed, the slider 15 resets to drive the placement plate 4 to reset, and the trapezoidal plate 10 resets through the spring 22 between the ring sleeve 20 and the guide rod 21.

[0030] Refer to Figure 4 , a groove is provided on the surface of the trapezoidal plate 10, and the roller 19 rolls in the groove.

[0031] In this embodiment, the trapezoidal plate 10 is provided with a groove, and the roller 19 rolls in the groove, reducing the friction between parts. The roller 19 can be limited by the groove.

[0032] Refer to Figure 1 , a lighting lamp 7 is fixedly installed at one end of the surface of the placement plate 4 for illuminating the drawing paper on the surface of the placement plate 4.

[0033] In this embodiment, the lighting lamp 7 is installed at the rising end of the placement plate 4, so that the light can always shine on the drawing area when people are drawing, avoiding the generation of shadows when installed on the side during drawing.

[0034] Refer to Figure 1, a plurality of universal wheels 9 are installed at the bottom of the bottom plate 1, and a push handle 8 is fixedly installed on the other side of the support seat 3. The push handle 8 and the universal wheels 9 are used in cooperation to move and steer the device.

[0035] In this embodiment, the push handle 8 and the universal wheels 9 make the movement and steering of the device more convenient, avoiding the problem that it is difficult to steer the device due to the use of fixed wheels.

[0036] Refer to Figure 1 , both sides of the placing plate 4 are rotatably connected with pressing plates 6 for fixing the drawings on the surface of the placing plate 4.

[0037] This application can be used for curtain wall engineering design or other fields applicable to this application.

[0038] Embodiment 2

[0039] Refer to Figure 2 , on the basis of Embodiment 1, a digital design drawing board for curtain wall engineering design is improved. A pen holder 14 is fixedly installed on one side of the placing plate 4 for storing drawing tools, and a storage box 13 is fixedly installed on the surface of the support seat 3 for storing the drawings on the surface of the placing plate 4.

[0040] In this embodiment, a pen holder 14 is installed on one side of the placing plate 4, and a storage box 13 is installed on the surface of the support seat 3, so that the drawings and drawing tools can be stored at any time, which is convenient for painting improvement next time.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A drawing board, comprising a bottom plate (1) and a support base (3), characterized in that, At the four corners of the bottom of the support base (3), support rods (2) are fixedly installed, and the other ends of the support rods (2) are fixedly connected to the surface of the bottom plate (1). One end of the support base (3) is rotatably connected to a first connecting rod (11), and a placement plate (4) is fixedly installed on the circumference of the first connecting rod (11); A drive assembly, the drive assembly includes a lead screw (12) rotatably installed on the inner wall of the support base (3). A slider (15) is threadedly connected to the circumference of the lead screw (12). Positioning plates (23) are fixedly installed on the top of the slider (15) and the bottom surface of the support base (3). Positioning rods (16) are fixedly installed on the sides of the positioning plates (23) that are close to each other. A second connecting rod (17) is rotatably installed between the two positioning rods (16). A motor (5) is fixedly installed on one side of the support base (3). The output shaft of the motor (5) passes through the support base (3) and is fixedly connected to one end of the lead screw (12). A third connecting rod (18) is fixedly installed at the bottom of the slider (15), and a roller (19) is installed at the bottom of the third connecting rod (18); A support assembly, the support assembly includes a trapezoidal plate (10) slidably installed inside the bottom plate (1). A plurality of circular ring sleeves (20) are fixedly installed on both sides of the trapezoidal plate (10). A plurality of guide rods (21) are fixedly installed on the surface of the bottom plate (1). The plurality of guide rods (21) are respectively slidably connected to the plurality of circular ring sleeves (20). Springs (22) are fixedly connected between the plurality of circular ring sleeves (20) and the plurality of guide rods (21).

2. A drawing board according to claim 1, characterized in that, A groove is provided on the surface of the trapezoidal plate (10), and the roller (19) rolls in the groove.

3. A drawing board according to claim 1, characterized in that, A lighting lamp (7) is fixedly installed at one end of the surface of the placement plate (4) for illuminating the drawings on the surface of the placement plate (4).

4. A drawing board according to claim 1, characterized in that, A pen holder (14) is fixedly installed on one side of the placement plate (4) for storing drawing tools.

5. A drawing board according to claim 1, characterized in that, A storage box (13) is fixedly installed on the surface of the support base (3) for storing the drawings on the surface of the placement plate (4).

6. The drawing board according to claim 1, wherein A plurality of universal wheels (9) are installed at the bottom of the bottom plate (1). A push handle (8) is fixedly installed on the other side of the support base (3). The push handle (8) and the universal wheels (9) are used in cooperation for moving and turning the device.

7. A drawing board according to claim 1, characterized in that, Pressing plates (6) are rotatably connected to both sides of the placement plate (4) for fixing the drawings on the surface of the placement plate (4).

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