Foldable drawing frame

Abstract

The utility model relates to the technical field of advertisement design, in particular to a foldable drawing frame which comprises a fixing ring, a supporting rod is rotatably connected to the surface of the fixing ring, an extending rod is rotatably connected to the bottom of the supporting rod, an adjusting assembly is installed in the fixing ring, and a picture frame assembly is installed at the top of the adjusting assembly. A limiting rod rotates on the surface of the fixing ring; according to the improved drawing frame, the extension rods are stored in the supporting rods, the four supporting rods can be upwards folded and stored along the fixing rings, then the picture frame assembly on the top is folded and stored, double folding is achieved, the overall occupied area of the stored drawing frame is smaller, the drawing frame is matched with drawing boards of various different sizes by adjusting the positions of the pressing blocks, and the drawing frame is convenient to use. Two bolts at the bottom are matched, the drawing board is fixed in a three-point mode, stability is higher, limiting rods are inserted into the sliding ways and attached to different protruding clamping blocks in the sliding ways, the backward inclination angle of the drawing board can be flexibly adjusted, and practicability is more flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of advertisement design, specifically is collapsible drawing frame. BACKGROUND

[0002] Advertisement design is a creative process that communicates information, promotes products or services through visual and verbal means, and it combines elements of art, marketing, and communication science, aiming to attract the attention of target audiences and prompt them to take action. In the initial stage of advertisement design, creative thinking is crucial, and this process involves in-depth analysis and research on the advertisement theme, target audience, communication purpose, product characteristics, etc. In order to record inspiration in a timely manner, advertisement designers sometimes hand-draw sketches, which are then scanned into computers for post-processing. During the process of hand-drawing sketches, a drawing frame is needed, which can provide a stable working surface to help designers draw details more conveniently on paper, especially when drawing complex lines or adjusting the drawing angle, the drawing frame can help avoid uncomfortable postures.

[0003] The inventor found the following problems in the prior art during the implementation of the utility model:

[0004] 1. The overall floor area of the drawing frame is relatively large, and most drawing frames are foldable for storage. However, the existing drawing frame can only be stored in the part of the support frame facing the bottom, and the top frame support cannot be stored, still occupying a large space, which is not convenient to store.

[0005] 2. The size of the top frame support of the existing drawing frame is fixed, and it cannot accommodate different sizes of drawing boards. In daily design, sometimes different specifications of drawing boards need to be used for drawing, at which time additional clamps or adjustment accessories are needed, and the range or angle of the frame support adjustment is also fixed, which cannot be adjusted according to individual use habits, limiting the flexibility of the drawing frame. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a collapsible drawing frame to solve the problems of the frame support being unable to be stored, the frame angle being unable to be adjusted at multiple angles, and the frame support being unable to accommodate different sizes of drawing boards, which are not flexible enough. To achieve the above purpose, the utility model provides the following technical scheme: a collapsible drawing frame, comprising a fixed ring, a support rod is rotatably connected to the surface of the fixed ring, an extension rod is rotatably connected to the bottom of the support rod, an adjustment assembly is installed inside the fixed ring, a frame assembly is installed at the top of the adjustment assembly, and a limiting rod is rotatably connected to the surface of the fixed ring.

[0007] The adjustment assembly comprises a mounting bracket welded with the fixed ring, a limiting disc is rotatably connected to the bottom of the mounting bracket, an insertion rod is welded to the surface of the limiting disc, and a rotating rod is rotatably connected to the inner wall of the mounting bracket.

[0008] The picture frame assembly comprises a vertical rod, the inner wall of the top of the vertical rod is rotationally connected with a lead screw, the surface of the lead screw is threadedly connected with a pressing block, the inner wall of the bottom of the vertical rod is rotationally connected with a rotating shaft, the surface of the rotating shaft is respectively welded with a gear and a horizontal rod, the outer wall of the bottom of the vertical rod is riveted with a baffle, the front of the horizontal rod is welded with a limiting plate, the front of the limiting plate is threadedly connected with a bolt, and the back of the vertical rod is welded with a slide.

[0009] Further preferably, the supporting rods and the extension rods are arranged in groups, four groups are arranged in total, the supporting rods are equally angularly distributed about the central axis of the fixing ring, and the bottom of each supporting rod is welded with a limiting block.

[0010] Further preferably, the limiting disc is conical, four insertion rods are arranged in total, and the top of each supporting rod is inserted with one end of the insertion rod.

[0011] Further preferably, the rotating rod is welded with the inner wall of the bottom of the vertical rod, and the picture frame assembly is connected with the mounting frame through the rotating rod.

[0012] Further preferably, the gear, the horizontal rod, the baffle, the limiting plate and the bolt are arranged in groups, two groups are arranged in total, and the two groups of components are symmetrically distributed about the central axis of the vertical rod.

[0013] Further preferably, the pressing block is slidably connected with the vertical rod, and the front of the pressing block is provided with a trapezoidal sliding groove.

[0014] Further preferably, the limiting rod and the slide are inserted with each other, and the inner wall of the slide is provided with a plurality of protruding clamping blocks.

[0015] Compared with the prior art, the picture frame assembly has the following beneficial effects:

[0016] In the utility model, the two gears are meshed with each other, can be reversely rotated at the same time, can drive the two limiting plates and the baffle to simultaneously expand and fold, when the drawing frame needs to be folded, the left horizontal rod is turned up, the right horizontal rod is simultaneously driven to be folded inward, when the drawing frame does not need to be used, the supporting rods at the bottom can be folded, the four supporting rods can be folded and stored upward along the fixing ring, the picture frame assembly at the top is folded and stored, double folding, and the drawing frame after storage has smaller overall area.

[0017] The utility model discloses a drawing board fixing device, including fixed ring, support rod, extension rod, adjusting assembly, picture frame assembly, limiting rod, it is characterized in being: the extension rod is connected to the fixed ring, the support rod is connected to the extension rod, the adjusting assembly is connected to the support rod, the picture frame assembly is connected to the adjusting assembly, the limiting rod is connected to the picture frame assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of unfolding of the utility model;

[0019] Figure 2 It is the structure schematic diagram of folding of the utility model;

[0020] Figure 3 It is the structure schematic diagram of limiting rod and picture frame assembly of the utility model;

[0021] Figure 4 It is the utility model Figure 1 It is the structure schematic diagram of amplifying A place of the utility model;

[0022] Figure 5 It is the structure schematic diagram of plug-in rod and limiting disc of the utility model;

[0023] Figure 6 It is the structure schematic diagram of vertical rod and pressure block of the utility model.

[0024] In the drawing: 1, fixed ring, 2, support rod, 3, extension rod, 4, adjusting assembly, 401, mounting bracket, 402, limiting disc, 403, plug-in rod, 404, rotating rod, 5, picture frame assembly, 501, vertical rod, 502, screw rod, 503, pressure block, 504, rotating shaft, 505, gear, 506, cross rod, 507, baffle, 508, limiting plate, 509, bolt, 5010, slide, 6, limiting rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the range of the utility model protection.

[0026] Please refer to Figures 1 to 6The utility model provides a technical scheme: foldable drawing frame, including fixed ring 1, the surface rotation of fixed ring 1 is connected with support rod 2, the bottom rotation of support rod 2 is connected with extension rod 3, the inside installation of fixed ring 1 has adjusting assembly 4, the top of adjusting assembly 4 is installed with picture frame assembly 5, the surface rotation of fixed ring 1 is limited with limit rod 6.

[0027] Adjusting assembly 4 includes the mounting bracket 401 of welding with fixed ring 1, the bottom rotation of mounting bracket 401 is connected with limit disc 402, the surface welding of limit disc 402 has the plug rod 403, the inner wall rotation of mounting bracket 401 has the rotation rod 404.

[0028] Picture frame assembly 5 includes vertical rod 501, the top inner wall rotation of vertical rod 501 is connected with lead screw 502, the surface screw thread of lead screw 502 is linked with pressure block 503, the bottom inner wall rotation of vertical rod 501 is connected with rotating shaft 504, the surface welding of rotating shaft 504 has gear 505 and cross bar 506 respectively, the outer wall riveting of vertical rod 501 has baffle 507, the front welding of cross bar 506 has limit plate 508, the front screw thread of limit plate 508 is connected with bolt 509, the back welding of vertical rod 501 has slide 5010.

[0029] In the embodiment, as shown in Figure 1 And Figure 2 , support rod 2 and extension rod 3 are set as a group, four groups are provided, and the support rods 2 are equally angularly distributed about the central axis of the fixed ring 1, and the bottom of the support rod 2 is welded with a limiting block. It should be noted that the four support rods 2 can be folded upward for storage or unfolded downward along the fixed ring 1, and the bottom of the unfolded four support rods 2 forms a four-corner stable structure, and the limiting block at the bottom of the support rod 2 limits the extension rod 3, avoiding the extension rod 3 from turning outward, and at this time, since the central axis of the support rod 2 and the central axis of the fixed ring 1 are greater than ninety degrees, the extension rod 3 will not turn inward when it is pressed against the ground.

[0030] In the embodiment, as shown in Figure 1 And Figure 5 , the limiting disc 402 is conical, and the four plug rods 403 are provided, and one end of the plug rod 403 is inserted into the top of the support rod 2. It should be noted that the outer wall of the conical limiting disc 402 can resist the turned-in support rod 2, avoiding the support rod 2 from turning inward, and by rotating the limiting disc 402 and aligning the four plug rods 403 with the holes in the front of the support rod 2 respectively, the support rod 2 can be locked to avoid turning outward, and the outward inclination angle of the four support rods can be fixed.

[0031] In the embodiment, as shown in Figure 4As shown, the rotating rod 404 is welded with the inner wall of the bottom of the vertical rod 501, and the frame assembly 5 is connected with the mounting frame 401 through the rotating rod 404; it should be noted that the rotating rod 404 can rotate along the inner wall of the mounting frame 401, and the vertical rod 501 of the frame assembly 5 can rotate along the inner wall of the mounting frame 401 through the connection of the rotating rod 404, so as to adjust the inclination angle of the whole frame assembly 5, cooperate with the limiting rod 6 and the fixing ring 1, form a triangular stable structure, and support the whole inclined frame assembly 5.

[0032] In the embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , the gear 505, the cross rod 506, the baffle 507, the limiting plate 508 and the bolt 509 are arranged as a group, there are two groups, and the two groups of components are symmetrically distributed about the central axis of the vertical rod 501; it should be noted that the two gears 505 are engaged with each other and can rotate in opposite directions at the same time, that is, the two limiting plates 508 and the baffles 507 on the two sides can be expanded and stored at the same time, and when the drawing frame needs to be stored, the left cross rod 506 is turned up, and the right cross rod 506 is also turned inwards at the same time.

[0033] In the embodiment, as shown in Figure 6 , the pressing block 503 is connected with the vertical rod 501 in a sliding manner, and the front surface of the pressing block 503 is provided with a trapezoidal sliding groove; it should be noted that by arranging the trapezoidal sliding groove on the front surface of the pressing block 503, the edge of the sliding groove can be slowly abutted against the top of the drawing board with the sliding of the pressing block 503, so as to fix the top of the drawing board, and the position of the pressing block 503 can be adjusted up and down to adapt to drawing boards of various sizes, and cooperate with the two bolts 509 at the bottom to fix the drawing board in a three-point manner, which is more stable.

[0034] In the embodiment, as shown in Figure 3 , the limiting rod 6 and the sliding way 5010 are connected in a plug-in manner, and the inner wall of the sliding way 5010 is provided with a plurality of protruding clamping blocks; it should be noted that the limiting rod 6 is inserted into the sliding way 5010 and is attached to different protruding clamping blocks in the sliding way 5010, so that the drawing board can be inclined backward at a flexible angle, and the utility is more flexible.

[0035] The use method and advantages of the folding drawing frame are as follows:

[0036] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, first, four extension rods 3 are folded inwardly until they are embedded in the support rods 2, then the limiting disc 402 is rotated to drive the four insertion rods 403 out of the fixed ring 1, and then the four support rods 2 are flipped upwardly along the fixed ring 1, so that the bottom support part can be folded and stored, then the left horizontal rod 506 is flipped upwardly, and through the meshing of the gear 505, the right horizontal rod 506 can be driven to move inwardly and be stored, so that the entire picture frame assembly 5 can be folded and stored, when in use, first, the support rods 2 and the extension rods 3 are unfolded, then the left horizontal rod 506 is flipped downwardly to drive the other horizontal rod 506 to flip reversely, until the horizontal rod 506 is stopped by the bottom baffle 507 and is embedded in the gap of the limiting plate 508, through the rotation of the bolt 509, two points of the picture plate at the bottom are fixed, then the screw rod 502 is rotated, the pressing block 503 connected with the screw rod 502 is slid downwardly, until the front trapezoidal sliding groove of the pressing block 503 is embedded in the top of the picture plate, the top of the picture plate is fixed, the two bolts 509 at the bottom are combined, the picture plate is fixed by three points, then the picture plate is slightly rotated, through the rotation of the rotating rod 404, the picture plate is inclined backwardly along the mounting frame 401, then the limiting rod 6 is rotated and inserted into the sliding groove 5010, and is stopped by the protruding clamping block in the sliding groove 5010, the inclination angle of the picture plate is adjusted, and the picture plate can be used.

[0037] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A foldable drawing frame, including a retaining ring (1), characterized in that: The surface of the fixed ring (1) is rotatably connected to a support rod (2), the bottom of the support rod (2) is rotatably connected to an extension rod (3), an adjustment component (4) is installed inside the fixed ring (1), a picture frame component (5) is installed on the top of the adjustment component (4), and a limit rod (6) is rotatably connected to the surface of the fixed ring (1). The adjustment assembly (4) includes a mounting bracket (401) welded to the fixing ring (1), a limiting plate (402) is rotatably connected to the bottom of the mounting bracket (401), a plug rod (403) is welded to the surface of the limiting plate (402), and a rotating rod (404) is rotatably connected to the inner wall of the mounting bracket (401). The picture frame assembly (5) includes a vertical rod (501), a lead screw (502) is rotatably connected to the top inner wall of the vertical rod (501), a pressure block (503) is threadedly connected to the surface of the lead screw (502), a rotating shaft (504) is rotatably connected to the bottom inner wall of the vertical rod (501), a gear (505) and a crossbar (506) are welded to the surface of the rotating shaft (504), a baffle (507) is riveted to the bottom outer wall of the vertical rod (501), a limiting plate (508) is welded to the front of the crossbar (506), a bolt (509) is threadedly connected to the front of the limiting plate (508), and a slide rail (5010) is welded to the back of the vertical rod (501).

2. The foldable drawing frame according to claim 1, characterized in that: The support rod (2) and the extension rod (3) are set as a group, and there are four groups in total. The support rods (2) are distributed at equal angles about the central axis of the fixing ring (1), and the bottom of the support rod (2) is welded with a limit block.

3. The foldable drawing frame according to claim 1, characterized in that: The limiting plate (402) is cone-shaped, and there are four insertion rods (403), with one end of the insertion rod (403) being inserted into the top of the support rod (2).

4. The foldable drawing frame according to claim 1, characterized in that: The rotating rod (404) and the bottom inner wall of the vertical rod (501) are welded together, and the picture frame assembly (5) is connected to the mounting bracket (401) through the rotating rod (404).

5. The foldable drawing frame according to claim 1, characterized in that: The gear (505), crossbar (506), baffle (507), limiting plate (508) and bolt (509) are set as a group, and there are two groups in total. The two groups of components are symmetrically distributed about the central axis of the vertical bar (501).

6. The foldable drawing frame according to claim 1, characterized in that: The pressure block (503) and the vertical rod (501) are connected by a sliding connection, and the front of the pressure block (503) is provided with a trapezoidal groove.

7. The foldable drawing frame according to claim 1, characterized in that: The limiting rod (6) and the slide (5010) are connected by a plug-in method, and the inner wall of the slide (5010) is provided with several protruding locking blocks.

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