Drawing paper extension structure and drawing device

Abstract

The utility model discloses a drawing paper extension structure and a drawing device, and relates to the technical field of drawing, the drawing paper extension structure comprises a placing plate, the top of the placing plate is provided with an extension assembly, the extension assembly comprises a mounting box connected with the placing plate, and the top of the mounting box is welded with a protection box. A connecting shaft body is rotationally connected to an inner cavity of the protection box, a worm wheel is connected to the top end of the connecting shaft body, and the bottom end of the connecting shaft body penetrates into an inner cavity of the mounting box. According to the drawing paper fixing device, long drawing paper can be fixed in the extending process, time and labor are saved, a user does not need to fix the drawing paper with the help of external fixing and placing tools, the operation burden of the user is relieved, some curled drawing paper can be gradually smoothed, and the drawing paper fixing device is convenient to use and high in practicability. And therefore, the drawing paper can be conveniently assisted to extend between the drawing board and the drawing board, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of painting, in particular to a drawing paper extension structure and a painting device. Background Art

[0002] An easel is a free-standing structure designed by artists to support a canvas or drawing board while painting. Studio easels are usually made of four strong wooden bars fixed to a square or rectangular base, with two sturdy support rods crossing at the top, and diagonal pillars in the middle of the back. There is an adjustable sliding slot, and its spring hooks can fix and support the painting in sections; there is a movable clamp at the top to fix it. Sketching easels are made of wood or aluminum, small, light and easy to carry, and all the accessories can be folded into a compact volume; its design is between stable and portable. The most common sketching easel has three legs, two of which are placed in the front to support the painting pillars, and the third leg is tilted backward to adjust the angle of the drawing board or canvas.

[0003] However, when fixing a long drawing paper, the existing easel cannot fix the four corners of the drawing paper, which causes the surface of the drawing paper to curl or dent when the user uses it. The user is then required to use external fixing tools and supporting tools to fix the drawing paper at the same time, which is time-consuming and labor-intensive, making the work of fixing the drawing paper cumbersome, increasing the time for the user's preparation work before painting, shortening the use range of the easel, and making it inconvenient to use. Therefore, we propose a painting device with a drawing paper extension structure, which has the function of being easy to use and needs to be developed urgently. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present utility model is to provide a drawing paper extension structure and a painting device. The existing easel cannot fix the four corners of the drawing paper when fixing a longer drawing paper, which causes the surface of the drawing paper to curl or dent when the user uses it. The user is required to fix the drawing paper with the help of external fixing tools and supporting tools at the same time, which is time-consuming and labor-intensive, resulting in the cumbersome work of fixing the drawing paper, increasing the time for the user's preparation work before painting, shortening the use range of the easel, and causing technical problems such as inconvenience in use.

[0005] In order to solve the above technical problems, the utility model provides a drawing paper extension structure, adopting the following technical scheme: it includes a placement plate, an extension component is arranged on the top of the placement plate, the extension component includes an installation box connected to the placement plate, a protection box is welded on the top of the installation box, the inner cavity of the protection box is rotatably connected to a connecting shaft, the top of the connecting shaft is connected to a worm gear, and the bottom end of the connecting shaft passes through the inner cavity of the installation box, the rear side of the inner cavity of the protection box is rotatably connected to a worm, and the worm is meshed with the worm gear.

[0006] Preferably, a baffle is connected at the center of the bottom of the inner cavity of the installation box, and threaded rods are rotatably connected to the left and right sides of the baffle, and ends of the two threaded rods away from the baffle are rotatably connected to the installation box respectively.

[0007] Preferably, the surface of the threaded rod and the bottom end of the connecting shaft are respectively connected with three meshing bevel gears, and the surface of the threaded rod is threadedly connected with a threaded block.

[0008] Preferably, the bottom of the threaded block is slidably connected to the mounting box, the front side of the threaded block is connected to a retention plate, and the bottom of the retention plate is connected to a connecting plate.

[0009] Preferably, both sides of the rear side of the connecting plate are connected with springs, one end of the spring away from the connecting plate is connected with a pressing block, and the outer surface of the pressing block is slidably connected to the connecting plate.

[0010] Preferably, guide plates are slidably connected on both sides of the top of the placement plate, the front side of the guide plate is connected to the first positioning plate, and a bolt is penetrated on the rear side of the guide plate, one end of the bolt penetrates to the outside of the first positioning plate and is threadedly connected to the placement plate.

[0011] Preferably, the left and right sides of the front side of the placement plate are rotatably connected to operating rods, the front end of the operating rod is connected to a movable plate, one side of the movable plate is rotatably connected to the running plate, the side of the running plate away from the moving plate is rotatably connected to a second positioning plate, and the rear side of the second positioning plate is slidably connected to the placement plate.

[0012] Preferably, the first positioning plate and the second positioning plate are used in conjunction with a pressing block, the outer surface of the connecting plate is connected to a mounting plate, and the bottom of the mounting plate is connected to a toothed plate.

[0013] Preferably, the left and right sides of the front side of the placement plate are rotatably connected with round rods, and the front end of the round rod and the surface of the running rod are respectively connected with two meshing gears, and the gears are meshed with the toothed plate.

[0014] Preferably, on the other hand, the present application also provides a painting device with a drawing paper extension structure, comprising an easel, wherein the bottom of the easel is connected to a base frame, the four corners of the bottom of the base frame are rotatably connected to universal wheels, the front side of the easel is connected to a placement board, and the easel is used in conjunction with an extension component.

[0015] The beneficial effect of the utility model is that through the setting of the extension component, the drawing paper can be fixed and the drawing board for placing the drawing paper can be unfolded at the same time, which is conducive to fixing the longer drawing paper during the extension process, saving time and effort, and there is no need for the user to use external fixing and placement tools to fix the drawing paper, which reduces the user's operating burden, and can gradually smooth out some curled drawing papers, thereby facilitating the working state of the auxiliary drawing paper to be extended between the drawing board, which is easy to use and improves the user's painting work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the overall rear-view stereoscopic structure of the present application.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the second positioning plate of the present application.

[0020] Figure 4 For this application Figure 3 Enlarged structural diagram at A in the middle.

[0021] Figure 5 This is a schematic diagram of a disassembled three-dimensional view of the extension component of the present application.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the first positioning plate of the present application.

[0023] Figure 7 The rear view of the three-dimensional structure of the placement board of this application is shown as follows Figure 1 ;

[0024] Figure 8 The rear view of the three-dimensional structure of the placement board of this application is shown as follows Figure 2 ;

[0025] Fig. 9 The overall three-dimensional structure of the extension component of this application is shown in FIG. Figure 1 ;

[0026] Fig.10 The overall three-dimensional structure of the extension component of this application is shown in FIG. Figure 2 ;

[0027] Explanation of the reference numerals: 1. easel; 2. base frame; 3. universal wheel; 4. placement plate; 5. extension assembly; 51. installation box; 52. protection box; 53. worm gear; 54. worm; 55. threaded rod; 56. bevel gear; 57. threaded block; 58. retention plate; 59. connecting plate; 510. spring; 511. pressure block; 512. first positioning plate; 513. guide plate; 514. bolt; 515. installation plate; 516. running plate; 517. moving plate; 518. round rod; 519. gear; 520. tooth plate; 521. second positioning plate; 522. baffle; 523. running rod. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 10 As shown, the utility model provides a drawing paper extension structure, including a placement plate 4, a stretching assembly 5 is arranged on the top of the placement plate 4, the stretching assembly 5 includes a mounting box 51 connected to the placement plate 4, a protection box 52 is welded on the top of the mounting box 51, the inner cavity of the protection box 52 is rotatably connected to a connecting shaft body, the top end of the connecting shaft body is connected to a worm gear 53, and the bottom end of the connecting shaft body penetrates into the inner cavity of the mounting box 51, and as shown in FIG. Fig. 9 As shown, the worm wheel 53 is connected to the connecting shaft, the rear side of the inner cavity of the protection box 52 is rotatably connected with a worm 54, the worm 54 is meshed with the worm wheel 53, and the front end of the worm 54 penetrates the outer side of the protection box 52 and is connected with a twist block for the user to twist, and a baffle 522 is connected at the center of the bottom of the inner cavity of the installation box 51;

[0030] like Figures 2 to 10As shown, the left and right sides of the baffle 522 are both rotatably connected with threaded rods 55, wherein the surfaces of the two threaded rods 55 are provided with threads, and the threads are arranged oppositely, and the ends of the two threaded rods 55 away from the baffle 522 are respectively rotatably connected with the mounting box 51, and the surfaces of the threaded rods 55 and the bottom ends of the connecting shafts are respectively connected with three meshing bevel gears 56, and the surfaces of the threaded rods 55 are threadedly connected with threaded blocks 57, wherein the contact area of ​​the threaded blocks 57 and the threaded rods 55 is provided with matching threads, and the threaded blocks 57 The bottom of the threaded block 57 is slidably connected to the installation box 51, and a retention plate 58 is connected to the front side of the threaded block 57, wherein the retention plate 58 is composed of an L-shaped plate and a plurality of vertical plates, wherein the vertical plates are welded to the surface of the L-shaped plate and are slidably connected to the installation box 51, and the sliding groove of the sliding connection is set in a U shape, and the user can use the vertical plate to place painting tools such as paintbrushes, and the bottom of the retention plate 58 is connected to a connecting plate 59, wherein the L-shaped plate is connected to the connecting plate 59, and both sides of the rear side of the connecting plate 59 are connected to springs 510;

[0031] like Figures 4 to 10 As shown, a pressure block 511 is connected to one end of the spring 510 away from the connecting plate 59, and the outer surface of the pressure block 511 is slidably connected to the connecting plate 59, wherein the thickness of the pressure block 511 can be thickened or reduced according to the actual use scenario, so as to facilitate contact and flattening of the drawing paper, and the pressure block 511 can change the material according to the roughness and hardness of the drawing paper, such as a softer or harder material such as a sponge board or a wooden board, and the two sides of the top of the placement plate 4 are slidably connected with a guide plate 513, the front side of the guide plate 513 is connected to a first positioning plate 512, and a bolt 514 is penetrated on the rear side of the guide plate 513, one end of the bolt 514 penetrates to the outer side of the first positioning plate 512 and is threadedly connected to the placement plate 4, and threaded holes compatible with the bolt 514 are opened on both sides of the rear side of the placement plate 4, and the left and right sides of the front side of the placement plate 4 are rotatably connected with a running rod 523, the front end of the running rod 523 is connected to a moving plate 517, and one side of the moving plate 517 is rotatably connected to a running plate 516;

[0032] like Figures 4 to 10 As shown, the side of the running plate 516 away from the moving plate 517 is rotatably connected to the second positioning plate 521, the rear side of the second positioning plate 521 is slidably connected to the placement plate 4, the first positioning plate 512 and the second positioning plate 521 are used in conjunction with the pressing block 511, the outer surface of the connecting plate 59 is connected to the mounting plate 515, the bottom of the mounting plate 515 is connected to the toothed plate 520, the left and right sides of the front side of the placement plate 4 are rotatably connected to the round rod 518, the front end of the round rod 518 and the surface of the running rod 523 are respectively connected to two meshing gears 519, the gear 519 is meshed with the toothed plate 520, and the gear 519 connected to the round rod 518 is meshed with the toothed plate 520;

[0033] Specifically, the user manually places the drawing paper on the first positioning plate 512, and manually pulls the pressing block 511 to contact and press the surface of the drawing paper, and then manually twists the twisting block, which drives the worm wheel 53 to rotate. The worm wheel 53 rotates and meshes with the worm 54 to rotate. The worm 54 drives the bevel gear 56 to rotate. The bevel gear 56 drives the threaded rod 55 to rotate. When the threaded rod 55 rotates, the two threaded blocks 57 are moved in the opposite direction by using the principle of thread transmission. The threaded block 57 drives the retention plate 58 to move synchronously. The retention plate 58 drives the connecting plate 59 to move synchronously. The connecting plate 59 At the same time, the pressing block 511 and the mounting plate 515 are driven to move synchronously, wherein the movement of the mounting plate 515 drives the toothed plate 520 to mesh and rotate with the gear 519, the gear 519 drives the moving plate 517 to move in a circle, and the moving plate 517 drives the running plate 516 to move synchronously, thereby pushing the second positioning plate 521 to move in the opposite direction. After the movement, the user can manually twist the bolt 514, and then push the first positioning plate 512 to align with the second positioning plate 521. In this process, the pressing block 511 pushes the curled drawing paper to gradually extend and flatten it, so as to facilitate the unfolding and fixing of the drawing paper.

[0034] On the other hand, the present application also provides a painting device with a drawing paper extension structure, comprising an easel 1, the bottom of the easel 1 is connected to a base frame 2, the four corners of the bottom of the base frame 2 are rotatably connected to universal wheels 3, the front side of the easel 1 is connected to a placement board 4, and the easel 1 is used in conjunction with an extension component 5.

[0035] A working process of a painting device with a drawing paper extension structure: the user first places the drawing paper on the extension component 5, and then the user can manually twist the extension component 5 to unfold it, and after unfolding, the four corners of the drawing paper can be fixed to achieve the purpose of extending the drawing paper. In addition, for some curled drawing papers, the extension component 5 can be first installed on the surface of the drawing paper, and then the curled drawing paper can be gradually smoothed and extended by moving the extension component 5, which is easy to use.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A drawing paper extension structure, comprising a placement plate (4), characterized in that: An extension component (5) is arranged on the top of the placement plate (4), and the extension component (5) includes a mounting box (51) connected to the placement plate (4). A protection box (52) is welded on the top of the mounting box (51). The inner cavity of the protection box (52) is rotatably connected to a connecting shaft body, the top end of the connecting shaft body is connected to a worm gear (53), and the bottom end of the connecting shaft body passes through the inner cavity of the mounting box (51). The rear side of the inner cavity of the protection box (52) is rotatably connected to a worm (54), and the worm gear (54) is meshed with the worm gear (53).

2. A drawing paper extension structure as claimed in claim 1, characterized in that: A baffle (522) is connected to the center of the bottom of the inner cavity of the installation box (51), and threaded rods (55) are rotatably connected to the left and right sides of the baffle (522), and ends of the two threaded rods (55) away from the baffle (522) are respectively rotatably connected to the installation box (51).

3. A drawing paper extension structure as claimed in claim 2, characterized in that: The surface of the threaded rod (55) and the bottom end of the connecting shaft are respectively connected to three meshing bevel gears (56), and the surface of the threaded rod (55) is threadedly connected to a threaded block (57).

4. A drawing paper extension structure as claimed in claim 3, characterized in that: The bottom of the threaded block (57) is slidably connected to the mounting box (51), the front side of the threaded block (57) is connected to a retention plate (58), and the bottom of the retention plate (58) is connected to a connecting plate (59).

5. A drawing paper extension structure as claimed in claim 4, characterized in that: Both sides of the rear side of the connecting plate (59) are connected to springs (510), one end of the spring (510) away from the connecting plate (59) is connected to a pressing block (511), and the outer surface of the pressing block (511) is slidably connected to the connecting plate (59).

6. A drawing paper extension structure as claimed in claim 5, characterized in that: A guide plate (513) is slidably connected to both sides of the top of the placement plate (4); the front side of the guide plate (513) is connected to the first positioning plate (512); a bolt (514) is provided through the rear side of the guide plate (513); one end of the bolt (514) passes through the outside of the first positioning plate (512) and is threadedly connected to the placement plate (4).

7. A drawing paper extension structure as claimed in claim 6, characterized in that: The left and right sides of the front side of the placement plate (4) are both rotatably connected to operating rods (523), the front end of the operating rod (523) is connected to a moving plate (517), one side of the moving plate (517) is rotatably connected to an operating plate (516), the side of the running plate (516) away from the moving plate (517) is rotatably connected to a second positioning plate (521), and the rear side of the second positioning plate (521) is slidably connected to the placement plate (4).

8. A drawing paper extension structure as claimed in claim 7, characterized in that: The first positioning plate (512) and the second positioning plate (521) are used in conjunction with the pressing block (511); the outer surface of the connecting plate (59) is connected to a mounting plate (515); and the bottom of the mounting plate (515) is connected to a toothed plate (520).

9. A drawing paper extension structure as claimed in claim 8, characterized in that: The left and right sides of the front side of the placement plate (4) are both rotatably connected to round rods (518), and the front end of the round rod (518) and the surface of the running rod (523) are respectively connected to two meshing gears (519), and the gears (519) are meshed with the toothed plate (520).

10. A drawing device for realizing the drawing paper extension structure according to any one of claims 1 to 9, comprising an easel (1), characterized in that: The bottom of the easel (1) is connected to a base frame (2), and the four corners of the bottom of the base frame (2) are rotatably connected to universal wheels (3). The front side of the easel (1) is connected to a placement board (4), and the easel (1) is used in conjunction with an extension component (5).

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