Portable drawing board for drawing

Abstract

The utility model relates to a drawing board, in particular to a portable drawing board for drawing, which comprises a bottom board, a top board, a rotating shaft, a U-shaped frame, a sliding board, supporting legs and the like. A rotating shaft is rotationally arranged between the two symmetrical protrusions on the top of the bottom plate and penetrates through the top plate, a U-shaped frame is rotationally arranged on the top plate, a sliding plate is rotationally arranged between the two ends of the U-shaped frame, and supporting legs are rotationally connected to the two sides of the bottom of the bottom plate. The top plate is screwed into the rectangular concave groove in the top of the bottom plate with the rotating shaft as the center, the top plate is fixed into the rectangular concave groove in the top of the bottom plate in the mode that the locking block is clamped into the locking groove, and the top plate is portable and stored. Then, the supporting legs on the two sides are oppositely rotated by 90 degrees with the connecting positions of the supporting legs and the bottom of the bottom plate as the center, the supporting legs are screwed into H-shaped grooves formed in the bottom of the bottom plate, first limiting blocks penetrate through rectangular through grooves, the first limiting blocks are clamped into the bottom plate, and therefore the supporting legs are limited in the H-shaped grooves in the bottom of the bottom plate, and the effect that the supporting legs are folded and stored is achieved.

Description

Technical Field

[0001] The utility model relates to a drawing board, in particular to a portable drawing board for drawing. Background Art

[0002] With the continuous changes and development of the social environment, people are paying more and more attention to the indoor environment where they work and live. Therefore, before decorating a house, interior designers are needed to use material and technical means and architectural design principles according to the nature of the building's use, the environment it is in and the corresponding standards, to create an indoor environment that is functionally reasonable and meets people's material and spiritual needs. Therefore, interior designers are needed to draw decoration drawings based on the indoor area and the user's needs, so that construction workers can carry out construction according to the decoration drawings.

[0003] In order to maximize the use of space and meet the various needs of users as much as possible, designers often need to measure various dimensions and draw sketches at the decoration site. Due to the lack of facilities such as tables and chairs on site, draftsmen need to bring their own drawing boards to the site. Existing fully functional drawing boards often have the disadvantages of being large in size and inconvenient to carry. Portable drawing boards have a single function and cannot meet the needs of on-site mapping.

[0004] Based on this, it is necessary to design a portable drawing board for drawing to meet the function of interior decoration designers to draw on the decoration site. Utility Model Content

[0005] Technical solution: A portable drawing board for drawing, including a bottom plate, a top plate, a rotating shaft, legs, a U-shaped frame, a slide plate and a fixing component. The top of the bottom plate is provided with protrusions on all sides and a rectangular recessed groove in the middle. A rotating shaft is rotatably provided between two symmetrical protrusions on the top of the bottom plate, and the rotating shaft passes through the top plate. The top plate is adapted to the rectangular recessed groove on the top of the bottom plate. A U-shaped frame is rotatably provided on the top plate, and a slide plate is rotatably provided between the two ends of the U-shaped frame. The slide plate can slide along the rectangular recessed groove on the top of the bottom plate. Rectangular through grooves are symmetrically provided in the rectangular recessed groove on the top of the bottom plate. Legs are rotatably connected on both sides of the bottom of the bottom plate, and the legs can be stored in an "H"-shaped groove provided at the bottom of the bottom plate. The legs are provided with fixing components that cooperate with the rectangular through groove to fix the folded legs to the bottom of the bottom plate.

[0006] In addition, it is particularly preferred that the fixing component includes a limiting block and a spring, a rectangular slide groove is provided on the middle cross bar of the leg, and when the leg is folded and attached to the bottom of the base plate, the rectangular slide groove is located directly below the rectangular through groove, and a limiting block is slidably arranged in the rectangular slide groove, and the end of the limiting block away from the rectangular slide groove is a right-angled triangle, the limiting block can pass through the rectangular through groove, and a spring is arranged between the limiting block and the groove wall of the rectangular slide groove.

[0007] In addition, it is particularly preferred that it also includes a guide rod, a locking block and a second spring. A guide rod is arranged parallel to the side wall of the top plate away from the rotating shaft, and a locking block is slidably connected between the guide rods. The locking block can be inserted into the locking groove on the protrusion opened on the top of the bottom plate. A second spring is arranged between the locking block and the top plate, and the second spring is wound around the guide rod.

[0008] In addition, it is particularly preferred that a 7-shaped frame is provided on the top of the locking block.

[0009] Furthermore, it is particularly preferred that a storage box is slidably provided on the top plate.

[0010] In addition, it is particularly preferred that it also includes a screw rod and a limit block 2, and the four corners of the top of the top plate are provided with a limit block 2 for fixing the drawing paper by rotating the screw rod.

[0011] The beneficial effects of the utility model are as follows: the top plate is screwed into the rectangular recessed groove at the top of the bottom plate with the rotating shaft as the center, and the top plate is fixed in the rectangular recessed groove at the top of the bottom plate by means of a locking block snapping into the locking groove, so as to achieve portable storage of the top plate; then the legs on both sides are rotated 90 degrees toward each other with their connection with the bottom of the bottom plate as the center, and the legs are screwed into the "H"-shaped grooves at the bottom of the bottom plate, and the limiting blocks pass through the rectangular through grooves and are snapped into the bottom plate, thereby limiting the legs in the "H"-shaped grooves at the bottom of the bottom plate, so as to achieve the effect of folding and storing the legs; thereby realizing the portable carrying function of the drawing board. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the unfolded state.

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in a folded state.

[0014] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the bottom plate and the top plate of the utility model in a folded state.

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the support leg, the limit block and the spring of the utility model.

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the locking block, the 7-shaped frame, the second spring and the guide rod of the utility model.

[0017] Figure 6 It is a schematic diagram of the three-dimensional structure of the utility model in a folded state when viewed from above.

[0018] Among them, the above-mentioned drawings include the following figure marks: 1, bottom plate, 11, locking groove, 12, rectangular through groove, 2, top plate, 21, rotating shaft, 22, guide rod, 3, supporting leg, 31, limiting block one, 32, spring one, 4, U-shaped frame, 5, slide plate, 6, storage box, 7, limiting block two, 71, screw, 8, locking block, 81, 7-shaped frame, 82, spring two. 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] Embodiment: A portable drawing board for drawing, such as Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, it includes a bottom plate 1, a top plate 2, a rotating shaft 21, a leg 3, a U-shaped frame 4, a slide plate 5 and a fixing assembly. The top of the bottom plate 1 is provided with protrusions on all sides and a rectangular concave groove in the middle. A rotating shaft 21 is rotatably provided between two symmetrical protrusions at the top of the bottom plate 1. The rotating shaft 21 passes through the top plate 2. The top plate 2 is rotatably matched with the bottom plate 1 through the rotating shaft 21. The top plate 2 is adapted to the rectangular concave groove at the top of the bottom plate 1. A storage box 6 is slidably provided on the top plate 2. The storage box 6 can be used to place drawings to be used for drawing A U-shaped frame 4 is rotatably provided on the top plate 2, and a slide plate 5 is rotatably provided between the two ends of the U-shaped frame 4. The slide plate 5 can slide along the rectangular recessed groove on the top of the bottom plate 1, and rectangular through grooves 12 are symmetrically opened in the rectangular recessed groove on the top of the bottom plate 1. The bottom of the bottom plate 1 is rotatably connected with supporting legs 3 on both sides, and the supporting legs 3 can be stored in the "H"-shaped groove opened at the bottom of the bottom plate 1. The supporting legs 3 are provided with a fixing component that cooperates with the rectangular through groove 12 to fix the folded supporting legs 3 to the bottom of the bottom plate 1.

[0021] like Figure 3 , Figure 4 and Figure 6As shown, the fixing assembly includes a limit block 31 and a spring 32. A rectangular slide groove is provided on the middle cross bar of the leg 3. When the leg 3 is folded and fitted to the bottom of the base plate 1, the rectangular slide groove is located directly below the rectangular through groove 12. A limit block 31 is slidably arranged in the rectangular slide groove. The end of the limit block 31 away from the rectangular slide groove is a right-angled triangle. The limit block 31 can pass through the rectangular through groove 12. A spring 32 is arranged between the limit block 31 and the groove wall of the rectangular slide groove. After passing through the rectangular through groove 12, the limit block 31 is snap-fitted with the top of the base plate 1. The folded leg 3 is fixed in the H-shaped groove at the bottom of the base plate 1 by the right-angled triangle protruding part on the upper part of the limit block 31 being snapped into the rectangular recessed groove at the top of the base plate 1.

[0022] like Figure 1 and Figure 5 As shown, it also includes a guide rod 22, a locking block 8 and a second spring 82. A guide rod 22 is arranged in parallel on the right side wall of the top plate 2. A locking block 8 is slidably connected between the guide rods 22. The locking block 8 can be inserted into a locking groove 11 provided on the right side convex block at the top of the bottom plate 1. A second spring 82 is arranged between the locking block 8 and the top plate 2. The second spring 82 is wound around the guide rod 22. The locking block 8 is kept stuck in the locking groove 11 by the second spring 82, thereby connecting the right end of the top plate 2 to the right side of the top of the bottom plate 1, thereby avoiding the situation where the top plate 2 is automatically unfolded when the bottom plate 1 is lifted; a 7-shaped frame 81 is arranged on the top of the locking block 8, and the 7-shaped frame 81 drives the locking block 8 to move in a direction away from the locking groove 11, thereby releasing the locking function of the locking block 8 on the top plate 2, providing convenience for the unfolding of the top plate 2.

[0023] like Figure 1 and Figure 5 As shown, it also includes a screw rod 71 and a limit block 7. The four corners of the top of the top plate 2 are provided with limit blocks 7 for fixing the drawing paper by rotating the screw rod 71. The limit block 7 is rotatably set on the upper part of the screw rod 71. The lower part of the screw rod 71 is provided with an external thread groove. The top plate 2 is provided with an internal thread groove that cooperates with the external thread groove. The screw rod 71 can be screwed in and out along the internal thread groove on the top plate 2. By screwing in or out the screw rod 71, the function of effectively fixing the drawing paper by the limit block 7 is realized.

[0024] When unfolded, the top plate 2 rotates upward with the rotation axis 21 as the center to open, and the angle between the top plate 2 and the bottom plate 1 gradually increases. The top plate 2 gradually changes from being horizontally placed in the rectangular recessed groove on the top of the bottom plate 1 to an inclined state with the rotation axis 21 as the fulcrum. As the top plate 2 tilts upward, the U-shaped frame 4 drives the slide plate 5 to slide along the bottom of the rectangular recessed groove on the top of the bottom plate 1, and thereby pushes the limit block 31 stuck in the rectangular recessed groove on the top of the bottom plate 1 in the direction of the rotation axis 21, and the limit block 31 slides along the rectangular through groove 12, and compresses the spring in the rectangular slide groove on the middle cross bar of the supporting leg 3, so that the end of the right-angled triangle on the limit block 31 gradually moves to just above the rectangular through groove 12. At this time, due to the gravity of the supporting leg 3, the limit block 31 slides downward along the rectangular through groove 12, thereby releasing the limiting effect of the limit block 31 on the supporting leg 3, and the supporting leg 3 is centered at the connection between it and the bottom of the bottom plate 1 The support legs 3 are rotated 90 degrees downward so that the support legs 3 are perpendicular to the bottom of the bottom plate 1, thereby unfolding the bottom plate 1, the top plate 2 and the support legs 3. At this time, the drawing paper can be laid on the inclined top plate 2 and the drawing operation can be carried out; when it needs to be folded and stored, the top plate 2 is rotated in the direction of the rectangular recessed groove at the top of the bottom plate 1 with the rotation axis 21 as the center until the top plate 2 is completely integrated into the rectangular recessed groove at the top of the bottom plate 1, and the top plate 2 is fixed to the bottom plate 1 by the locking block 8 being snapped into the locking groove 11. Subsequently, the support legs 3 on both sides are rotated 90 degrees toward each other with their connection points with the bottom of the bottom plate 1 as the center, so that the support legs 3 are screwed into the "H"-shaped grooves at the bottom of the bottom plate 1, and the limit blocks 31 pass through the rectangular through grooves 12 and snap into the rectangular recessed grooves at the top of the bottom plate 1, thereby fixing the support legs 3 in the "H"-shaped grooves at the bottom of the bottom plate 1, thereby realizing the folding storage of the drawing board, thereby achieving the effect of being portable.

[0025] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A portable drawing board for drawing, characterized in that: The invention comprises a bottom plate (1), a top plate (2), a rotating shaft (21), legs (3), a U-shaped frame (4), a slide plate (5) and a fixing assembly. The top of the bottom plate (1) is provided with protrusions on all sides and a rectangular recessed groove in the middle. A rotating shaft (21) is rotatably provided between two symmetrical protrusions on the top of the bottom plate (1). The rotating shaft (21) passes through the top plate (2). The top plate (2) is adapted to the rectangular recessed groove on the top of the bottom plate (1). A U-shaped frame (4) is rotatably provided on the top plate (2). The two ends of the U-shaped frame (4) are provided with a plurality of protrusions on the top of the bottom plate (1). A slide plate (5) is rotatably arranged between the ends, and the slide plate (5) can slide along the rectangular recessed groove at the top of the bottom plate (1). Rectangular through grooves (12) are symmetrically provided in the rectangular recessed groove at the top of the bottom plate (1). Support legs (3) are rotatably connected to both sides of the bottom of the bottom plate (1). The support legs (3) can be received in an "H"-shaped groove provided at the bottom of the bottom plate (1). A fixing component is provided on the support legs (3) that cooperates with the rectangular through groove (12) to fix the folded support legs (3) to the bottom of the bottom plate (1).

2. A portable drawing board for drawing as claimed in claim 1, characterized in that: The fixing assembly comprises a limit block (31) and a spring (32); a rectangular slide groove is provided on the middle cross bar of the leg (3); when the leg (3) is folded and attached to the bottom of the base plate (1), the rectangular slide groove is located directly below the rectangular through groove (12); a limit block (31) is slidably arranged in the rectangular slide groove; the limit block (31) can pass through the rectangular through groove (12); and a spring (32) is arranged between the limit block (31) and the groove wall of the rectangular slide groove.

3. A portable drawing board for drawing as claimed in claim 2, characterized in that: The invention also comprises a guide rod (22), a locking block (8) and a second spring (82). The guide rod (22) is arranged parallel to the side wall of the top plate (2) away from the rotating shaft (21). The locking block (8) is slidably connected between the guide rods (22). The locking block (8) can be inserted into a locking groove (11) on a protrusion formed on the top of the bottom plate (1). The second spring (82) is arranged between the locking block (8) and the top plate (2). The second spring (82) is wound around the guide rod (22).

4. A portable drawing board for drawing as claimed in claim 3, characterized in that: A 7-shaped frame (81) is arranged on the top of the locking block (8).

5. A portable drawing board for drawing as claimed in claim 4, characterized in that: A storage box (6) is slidably arranged on the top plate (2).

6. A portable drawing board for drawing as claimed in claim 5, characterized in that: It also comprises a screw rod (71) and a second limiting block (7). The four corners of the top of the top plate (2) are provided with a second limiting block (7) for fixing the drawing sheet by rotating the screw rod (71).

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