Folding easel

Abstract

The utility model relates to the technical field of folding type easel, and discloses a folding type easel which comprises a fixing frame, an adjusting mechanism is arranged on the top of the fixing frame, and a supporting mechanism is fixedly connected to the bottom of the fixing frame. The adjusting mechanism comprises a fixing plate, the fixing plate is arranged on the top of the fixing frame, and the front end of the fixing plate is fixedly connected with a connecting block. According to the urinary catheterization device, angle adjustment is conducted by controlling rotation of a fixing plate, during rotation, a rotating frame slides on the outer wall of an L-shaped extending block, the length of the L-shaped extending block and the length of the rotating frame are fixed by screwing a bolt, an adjusting rod is rotated, the adjusting rod drives a sliding block to slide backwards at the inner bottom of the fixing frame through a limiting frame, and the fixing plate can slowly incline backwards; the angle of the fixing plate is effectively adjusted, and the problems that due to the fact that the rear end of the fixing plate is not stably fixed, supporting of the rear end of the fixing plate is poor, and the angle of the fixing plate cannot be reasonably adjusted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable painting easels, in particular to a foldable painting easel. Background Art

[0002] As a drawing tool, a drawing board is a flat plate used to pad drawing paper when painting. It is composed of a top plate and a bottom plate, and is often equipped with a bracket to facilitate the placement of the drawing board. Some drawing boards come with clips, usually made of wood, and the size depends on the needs of the user. They can also be made by yourself, and the structure is simple. There is also a plastic drawing board, which can be painted directly on the board and can be erased. It is often used for children's painting practice. The easel is a stand used to place the drawing board when painting. It can be divided into tripods, quadrilaterals, pull-out stands and folding stands according to the type. It can be divided into wooden stands, metal stands, plastic stands, etc. According to the use, it can be divided into ordinary easels, oil easels, etc. Oil easels are stands specially used for painting oil paintings.

[0003] The national patent publication number is: CN219650932U, which discloses a multifunctional folding drawing easel. The application states: "The existing drawing board has limited functions, and the drawing easel has a limited use area. It does not have the function of expanding the use area. When students draw, the paper is usually too large, and the user needs to fold the drawing paper, which causes creases on the drawing paper, resulting in an unsightly painting, affecting the user's drawing efficiency, and making it inconvenient for the user to use." Although the application solves this problem, it has the following defects:

[0004] When the multifunctional foldable painting easel is in use, the drawing board is supported by the connecting plate, and the limiting rod is engaged in the limiting groove to adjust the angle of the drawing board. However, the drawing board cannot be effectively supported only by the engagement of the limiting rod and the limiting groove, and the limiting rod cannot be adjusted to a suitable angle in the limiting groove. At the same time, the bottom support rod of the multifunctional foldable painting easel cannot be stored, resulting in a large space being occupied. Utility Model Content

[0005] The purpose of the utility model is to provide a foldable painting easel to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a foldable painting easel, comprising a fixed frame, the top of which is provided with an adjustment mechanism, and the bottom of which is fixedly connected with a support mechanism.

[0007] The adjusting mechanism comprises a fixing plate, which is arranged on the top of the fixing frame, a connecting block is fixedly connected to the front end of the fixing plate, the inner diameter of the connecting block is rotatably connected to a connecting shaft via a bearing, the left and right sides of the fixing plate are rotatably connected to rotating frames via bearings, the inner walls of the two rotating frames are slidably connected to L-shaped extension blocks, the outer walls of the two L-shaped extension blocks are threadedly connected to bolts, and the bolts pass through the rotating frames.

[0008] Preferably, a slide groove is penetrated and opened at the top of the fixing frame, and movable columns are slidably connected to the left and right sides of the inner wall of the slide groove, and the opposite side of the movable column is rotatably connected to the left and right sides of the connecting shaft through bearings.

[0009] Preferably, the fixing frame has limit rods penetrating through and threadedly connected to the left and right sides, and the opposite side of the limit rod is tightly fitted to the outer side of the movable column.

[0010] Preferably, sliding blocks are slidably connected to the left and right sides of the bottom of the fixed frame, and the inner walls of the sliding blocks are rotatably connected to the outer walls of the L-shaped extension block through bearings, the rear ends of the two sliding blocks are fixedly connected to the same limit frame, and the bottom of the limit frame is slidably connected to the bottom of the fixed frame, the rear end of the limit frame is rotatably connected to an adjusting rod through a bearing, and the adjusting rod passes through and is threadedly connected to the rear end of the fixed frame.

[0011] Preferably, the supporting mechanism includes a first fixed shaft cylinder, the top of the first fixed shaft cylinder is fixedly connected to the bottom of the fixed frame, the inner diameter of the first fixed shaft cylinder is rotatably connected to the first fixed shaft via a bearing, the bottom of the fixed frame is fixedly connected to the second fixed shaft cylinder, and the inner diameter of the second fixed shaft cylinder is rotatably connected to the second fixed shaft via a bearing.

[0012] Preferably, first support frames are fixedly connected to the left and right sides of the outer diameter of the first fixed shaft, and second extension columns are threadedly connected to the inner diameters of the two first support frames.

[0013] Preferably, the second support frames are fixedly connected to the left and right sides of the outer diameter of the second fixed shaft, and the outer walls of the second support frames are in contact with the inner walls of the first support frames.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The urinary catheter adjusts the angle by controlling the rotation of the fixed plate. When rotating, the rotating frame slides on the outer wall of the L-shaped extension block. By tightening the bolts, the length of the L-shaped extension block and the rotating frame are fixed. The adjusting rod is rotated, and the adjusting rod drives the sliding block to slide backward at the bottom of the fixed frame through the limit frame, so that the fixed plate can be slowly tilted backward, and the angle of the fixed plate is effectively adjusted, which solves the problem that the rear end of the fixed plate is unstable, resulting in poor support for the rear end of the fixed plate and the inability to reasonably adjust the angle of the fixed plate.

[0016] 2. The urinary catheter is provided with a rotatable first support frame and a second support frame, so that the support part at the bottom of the fixed frame can be stored conveniently, and the occupied space at the bottom of the fixed frame can be effectively reduced when not in use. The first extension column and the second extension column can be rotated to facilitate support on uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural front view of a foldable painting easel of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure disassembly of a foldable painting easel of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly of the fixed plate structure of a foldable painting easel of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly of the fixed frame structure of a foldable painting easel of the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the disassembly of the fixed shaft cylinder structure of a foldable painting easel.

[0022] In the figure: 1. fixed frame; 2. adjusting mechanism; 201. fixed plate; 202. connecting block; 203. sliding block; 204. L-shaped extension block; 205. rotating frame; 206. bolt; 207. limiting frame; 208. adjusting rod; 209. connecting shaft; 210. limiting rod; 211. slide groove; 212. movable column; 3. supporting mechanism; 301. first fixed shaft cylinder; 302. first fixed shaft; 303. first supporting frame; 304. second supporting frame; 305. first extension column; 306. second extension column; 307. second fixed shaft cylinder; 308. second fixed shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a foldable painting easel includes a fixed frame 1, an adjusting mechanism 2 is arranged on the top of the fixed frame 1, and a supporting mechanism 3 is fixedly connected to the bottom of the fixed frame 1.

[0025] The adjusting mechanism 2 comprises a fixing plate 201, which is arranged on the top of the fixing frame 1. A connecting block 202 is fixedly connected to the front end of the fixing plate 201. The inner diameter of the connecting block 202 is rotatably connected to a connecting shaft 209 through a bearing. The left and right sides of the fixing plate 201 are rotatably connected to rotating frames 205 through bearings. The inner walls of the two rotating frames 205 are slidably connected to L-shaped extension blocks 204. The outer walls of the two L-shaped extension blocks 204 are threadedly connected to bolts 206, and the bolts 206 penetrate the rotating frames 205. The fixing plate 201 is controlled to rotate with the connecting block 202 as the center, and the fixing plate 201 is controlled to adjust its angle. With the movement of the fixing plate 201, the rotating frame 205 is controlled to move upward on the outer wall of the L-shaped extension block 204. The bolts 206 can fix the rotating frame 205 on the L-shaped extension block 204, so as to support the fixing plate 201.

[0026] See also Figure 4 A slide groove 211 is penetrated and opened at the top of the fixed frame 1, and movable columns 212 are slidably connected to the left and right sides of the inner wall of the slide groove 211, and the opposite sides of the movable columns 212 are rotatably connected to the left and right sides of the connecting shaft 209 through bearings. The movable columns 212 slide in the slide groove 211 to control the fixed plate 201 to move backward, so that a certain space is formed between the front end of the fixed plate 201 and the top of the fixed frame 1, which is convenient for placing painting materials, and the fixed plate 201 and the fixed frame 1 are used to clamp the painting materials.

[0027] See also Figure 4 The left and right sides of the fixed frame 1 are penetrated and threadedly connected with the limit rod 210, and the opposite side of the limit rod 210 is tightly fitted with the outer side of the movable column 212. The limit rod 210 is rotated so that the limit rods 210 on both sides clamp the movable column 212, and the fixed plate 201 can be prevented from moving when the foldable painting easel is stored as a whole.

[0028] See also Figure 3 and Figure 4 The left and right sides of the bottom of the fixed frame 1 are slidably connected with sliding blocks 203, and the inner walls of the sliding blocks 203 are rotatably connected to the outer wall of the L-shaped extension block 204 through bearings. The rear ends of the two sliding blocks 203 are fixedly connected to the same limit frame 207, and the bottom of the limit frame 207 is slidably connected to the bottom of the fixed frame 1. The rear end of the limit frame 207 is rotatably connected to an adjusting rod 208 through a bearing, and the adjusting rod 208 penetrates and is threadedly connected to the rear end of the fixed frame 1. By rotating the adjusting rod 208, the sliding block 203 is driven to move backward through the limit frame 207, and the fixed plate 201 is controlled to move backward, and the inclination angle of the fixed plate 201 can be slightly adjusted.

[0029] See also Figure 5The supporting mechanism 3 includes a first fixed shaft cylinder 301, the top of the first fixed shaft cylinder 301 is fixedly connected to the bottom of the fixed frame 1, the inner diameter of the first fixed shaft cylinder 301 is rotatably connected to the first fixed shaft 302 through a bearing, the bottom of the fixed frame 1 is fixedly connected to the second fixed shaft cylinder 307, the inner diameter of the second fixed shaft cylinder 307 is rotatably connected to the second fixed shaft 308 through a bearing, and the first fixed shaft cylinder 301 and the second fixed shaft cylinder 307 are arranged to facilitate the rotation of the first fixed shaft 302 and the second fixed shaft 308.

[0030] See also Figure 5 The first fixed shaft 302 is fixedly connected to the left and right sides of the outer diameter of the first supporting frame 303, and the inner diameters of the two first supporting frames 303 are threadedly connected to the second extension column 306. The second extension column 306 slides out from the first supporting frame 303 to increase the height of the first supporting frame 303, so as to cope with different terrains.

[0031] See also Figure 5 The second support frame 304 is fixedly connected to the left and right sides of the outer diameter of the second fixed shaft 308, and the outer walls of the second support frame 304 are in contact with the inner walls of the first support frame 303. The first extension column 305 slides out from the second support frame 304 and supports the bottom of the fixed frame 1 together with the second extension column 306, which is convenient for storage and support of the bottom.

[0032] The working principle of the utility model is:

[0033] After selecting a suitable placement location, rotate the second support frame 304 and the first support frame 303 on the left and right sides so that the second support frame 304 and the first support frame 303 are at right angles to the fixed frame 1. According to the degree of concavity and convexity of the placement location, rotate the first extension column 305 and the second extension column 306 in turn to control the first extension column 305 and the second extension column 306 to move from the second support frame 304 and the first support frame 303 respectively. The bottom of the first extension column 305 contacts the ground to support the bottom of the fixed frame 1. Adjust the overall foldable easel to keep the surface of the fixed frame 1 stable. Control the fixed plate 201 to form a required angle by taking the connecting block 202 and the connecting shaft 209 set on the inner diameter as the center. At the same time, the L-shaped extension block 204 and the rotating When the movable frame 205 moves on the fixed plate 201, the outer center of the sliding block 203 is used to drive the rotating frame 205 to rotate, and the rotating frame 205 slides on the outer wall of the L-shaped extension block 204. When the fixed plate 201 reaches the required angle, the two bolts 206 are tightened, and the distance between the L-shaped extension block 204 and the rotating frame 205 is fixed by the bolts 206. The limit rods 210 on both sides are rotated, and the adjusting rod 208 is rotated to control the limit frame 207 to slide out from the bottom of the fixed frame 1 to the rear end, and drive the sliding block 203 to move backward, so as to adjust the inclination angle of the fixed plate 201. The fixed plate 201 contacts the side of the top of the fixed frame 1 and slides backward. The space formed in the middle is used to place and clamp the painting materials, and the painting materials are prevented from shaking.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A foldable painting easel, comprising a fixed frame (1), characterized in that: The top of the fixing frame (1) is provided with an adjustment mechanism (2), and the bottom of the fixing frame (1) is fixedly connected with a support mechanism (3); The adjustment mechanism (2) comprises a fixed plate (201), wherein the fixed plate (201) is arranged on the top of the fixed frame (1), a connecting block (202) is fixedly connected to the front end of the fixed plate (201), the inner diameter of the connecting block (202) is rotatably connected to a connecting shaft (209) via a bearing, the left and right sides of the fixed plate (201) are rotatably connected to rotating frames (205) via bearings, the inner walls of the two rotating frames (205) are slidably connected to L-shaped extension blocks (204), the outer walls of the two L-shaped extension blocks (204) are threadedly connected to bolts (206), and the bolts (206) penetrate the rotating frames (205).

2. A foldable painting easel according to claim 1, characterized in that: A slide groove (211) is formed through the top of the fixing frame (1), and movable columns (212) are slidably connected to the left and right sides of the inner wall of the slide groove (211), and the opposite sides of the movable columns (212) are rotatably connected to the left and right sides of the connecting shaft (209) through bearings.

3. The foldable painting easel according to claim 1, characterized in that: The limit rods (210) are passed through and threadedly connected to the left and right sides of the fixing frame (1), and the opposite sides of the limit rods (210) are tightly fitted to the outer sides of the movable columns (212).

4. The foldable painting easel according to claim 1, characterized in that: The left and right sides of the inner bottom of the fixing frame (1) are slidably connected to sliding blocks (203), and the inner walls of the sliding blocks (203) are rotatably connected to the outer walls of the L-shaped extension blocks (204) via bearings; the rear ends of the two sliding blocks (203) are fixedly connected to the same limiting frame (207), and the bottom of the limiting frame (207) is slidably connected to the inner bottom of the fixing frame (1); the inner rear end of the limiting frame (207) is rotatably connected to an adjusting rod (208) via a bearing, and the adjusting rod (208) passes through and is threadedly connected to the rear end of the fixing frame (1).

5. The foldable painting easel according to claim 1, characterized in that: The support mechanism (3) comprises a first fixed shaft cylinder (301), the top of the first fixed shaft cylinder (301) is fixedly connected to the bottom of the fixed frame (1), the inner diameter of the first fixed shaft cylinder (301) is rotatably connected to a first fixed shaft (302) via a bearing, the bottom of the fixed frame (1) is fixedly connected to a second fixed shaft cylinder (307), and the inner diameter of the second fixed shaft cylinder (307) is rotatably connected to a second fixed shaft (308) via a bearing.

6. The foldable painting easel according to claim 5, characterized in that: The first fixed shaft (302) is fixedly connected to first support frames (303) on both left and right sides of the outer diameter, and the inner diameters of the two first support frames (303) are both threadedly connected to second extension columns (306).

7. The foldable painting easel according to claim 6, characterized in that: The second support frame (304) is fixedly connected to the left and right sides of the outer diameter of the second fixed shaft (308), and the outer wall of the second support frame (304) is in contact with the inner wall of the first support frame (303).

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