CN113827050A

CN113827050A - Folding easel

Info

Publication number: CN113827050A
Application number: CN202111111187.9A
Authority: CN
Inventors: 陈金贵
Original assignee: Tianchang Beicai Cultural Goods Co Ltd
Current assignee: Tianchang Beicai Cultural Goods Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-24

Abstract

The invention relates to a folding easel which comprises a seat, wherein two storage mechanisms for storing articles are arranged on the seat at the front side, and a folding drawing auxiliary mechanism is arranged above the seat at the rear side; the folding easel is provided with a drawing auxiliary mechanism and a supporting mechanism; the design is convenient for folding and containing the easel, improves the portability of the device, and can reduce the fatigue of the painter when painting and keep the state of the painter; this foldable easel is through the receiving mechanism who is equipped with: on one hand, the arranged drawer, the handle and the like are convenient for accommodating painting tools, so that the practicability of the easel is improved; on the other hand, under the effect of spring, gag lever post and pull ring etc. both can avoid the drawer to break away from the sliding chamber in, also can avoid appearing the situation that the drawer breaks away from the sliding chamber at the in-process of transporting the easel to drawing the instrument in the drawer has played the guard action.

Description

Folding easel

Technical Field

The invention relates to the technical field of easels, in particular to a folding easel.

Background

The easel is an independent structure, artists are designed for supporting canvas or drawing boards during drawing, common easels are mainly aluminum easels and wood easels, the easels have the advantages of light weight and small size, and the easels can be divided into tripods, quadrangular frames, drawing (telescopic) frames, folding frames and the like according to types; at present, when carrying out outdoor sketching, need carry the easel more and be used for supporting the drawing board, and the structure and the function of current easel are comparatively single, have following problem in the use: on one hand, the painting time of sketching is often long, meanwhile, tools such as stools and the like are not carried for storage when people go out for sketching, and when the existing easel is used, a painter needs to stand for a long time to paint, so that not only is the fatigue of the painter caused, but also the painting state of the painter is influenced due to long-time standing; on the other hand, the existing easel has a simple structure, cannot accommodate painting tools such as pigments, and is very inconvenient for painters to additionally accommodate the tools.

Disclosure of Invention

The present invention is directed to a foldable easel, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a foldable easel comprises a seat, wherein two containing mechanisms for containing articles are arranged on the seat at the front side, a foldable drawing auxiliary mechanism is arranged above the seat at the rear side, and a foldable supporting mechanism is arranged below the seat; the top surface of seat support is located rear side department and sets up flutedly, all set up the shaft hole that is linked together with the recess on the both sides wall of seat support, lie in front side department on the both sides wall of seat support and all seted up smooth chamber, the seat support is internal to be located both corners department and has all seted up the spout, the connecting hole has all been seted up on the both sides wall of spout, the bottom surface of seat support is located both sides department and has all seted up the fixed orifices, and two the fixed orifices is linked together with smooth chamber and external world respectively.

According to a preferable technical scheme of the invention, the storage mechanism comprises a drawer in sliding connection with the sliding cavity, a limiting groove is formed in one side wall of the drawer, a limiting hole is formed in the limiting groove at the tail end, a handle is fixedly connected to the outer side wall of the drawer through bolts, a sliding block is connected in the sliding groove in a sliding mode, a limiting rod is coaxially fixed on the sliding block, one end of the limiting rod penetrates through one connecting hole and the limiting groove and is in plug-in fit with the limiting hole, the other end of the limiting rod penetrates through the other connecting hole and protrudes to the outside, a pull ring is coaxially fixed at the other end of the limiting rod, a spring is further sleeved on the limiting rod, and two ends of the spring respectively abut against the inner walls of the sliding block and the sliding groove.

According to a preferable technical scheme of the invention, the drawing auxiliary mechanism comprises a movable plate, two symmetrical strip-shaped grooves are formed in the movable plate, first lead screws are rotatably connected in the strip-shaped grooves, the two first lead screws are coaxially fixed, the thread surrounding directions are opposite, the tail end of one first lead screw penetrates through the movable plate and protrudes to the outside, a first twisting block is coaxially fixed at the tail end of the first lead screw, guide rods are arranged on two sides of the first lead screw, and two ends of each guide rod are fixed to the inner walls of the strip-shaped grooves.

According to the preferable technical scheme, the bar-shaped grooves are internally provided with connecting seats, the first screw rods penetrate through the corresponding connecting seats and are in threaded connection with the connecting seats, the guide rods penetrate through the connecting seats and are in sliding connection with the connecting seats, and L-shaped clamping plates are fixed on the two connecting seats; and the two side walls of the movable plate are respectively embedded with a fixed shaft at the bottom end, and the fixed shafts penetrate through the shaft holes and are rotationally connected with the shaft holes.

As a preferred technical scheme of the invention, a second screw rod is arranged below the movable plate, the tail end of the second screw rod penetrates through the seat and is coaxially and tightly welded with a second twisting block, connecting rods are arranged on two sides of the second screw rod, two ends of the second screw rod are rotatably connected with the inner wall of the groove, and two ends of the connecting rods are fixed with the inner wall of the groove; two symmetrical connecting plates are arranged above the connecting rods, fixing seats are arranged on two sides of each connecting plate, two symmetrical clamping grooves are formed in the fixing seats, pin shafts are embedded in the clamping grooves and penetrate through the tail ends of the connecting plates and are rotatably connected with the connecting plates, one of the fixing seats is fixedly connected with the bottom surface of the movable plate, the second lead screw penetrates through the other fixing seat and is in threaded connection with the fixing seat, and the connecting rods penetrate through the fixing seats and are in sliding connection with the fixing seats.

As a preferable technical scheme of the invention, the supporting mechanism comprises two symmetrical inverted U-shaped supports, the two supports are fixedly connected with the bottom surface of the chair seat through bolts, two symmetrical pull rods are fixed between the two supports, two symmetrical support legs are arranged below the supports, a cross shaft is fixed between the two support legs at the upper part, two ends of the cross shaft penetrate through the supports and are rotatably connected with the supports, and a connecting shaft is fixed between the two support legs at the lower part.

According to the preferable technical scheme, a movable seat is arranged above one side of the connecting shaft, a limiting screw is connected to the center of the movable seat in a threaded mode, the top end of the limiting screw is in inserting fit with the corresponding fixed hole, two symmetrical hinged plates are arranged below the movable seat, the connecting shaft penetrates through the bottom ends of the hinged plates and is in rotating connection with the hinged plates, hinged seats are hinged to the top ends of the two connecting shafts, and the hinged seats are fixedly connected with the bottom surface of the movable seat.

As a preferable technical scheme of the invention, two ends of the limiting groove are closed, and the width of the limiting groove is larger than the diameter of the limiting rod.

As a preferred embodiment of the present invention, the length of the lower splint is greater than the length of the upper splint.

As a preferable technical scheme, the size of the groove is matched with that of the movable plate.

Compared with the prior art, the invention has the beneficial effects that:

1. this foldable easel is through drawing complementary unit and the supporting mechanism who is equipped with: on one hand, under the arrangement of the first screw rod, the second screw rod, the movable seat, the limiting screw and the like, the adjustment is convenient during drawing, the movable plate and the support legs are convenient to fold after drawing, and the drawing auxiliary mechanism and the supporting mechanism are convenient to store, so that the space is saved, and the portability of the device is improved; on the other hand, the arranged chair seat is convenient for the painters to sit; the design is convenient for folding and containing the easel, improves the portability of the device, and can reduce the fatigue of the painter when painting and keep the state of the painter;

2. this foldable easel is through the receiving mechanism who is equipped with: on one hand, the arranged drawer, the handle and the like are convenient for accommodating painting tools, so that the practicability of the easel is improved; on the other hand, under the effect of spring, gag lever post and pull ring etc. both can avoid the drawer to break away from the sliding chamber in, also can avoid appearing the situation that the drawer breaks away from the sliding chamber at the in-process of transporting the easel to drawing the instrument in the drawer has played the guard action.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the chair seat of the present invention;

FIG. 3 is a cross-sectional view of the chair seat of the present invention;

FIG. 4 is a partial sectional view of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is a schematic view of a portion of the storage mechanism of the present invention;

FIG. 7 is a schematic structural diagram of a drawing aid mechanism according to the present invention;

FIG. 8 is a schematic view of a portion of the drawing assisting mechanism according to the present invention;

FIG. 9 is a second schematic view of a portion of the drawing assisting mechanism of the present invention;

FIG. 10 is a third schematic view of a part of the drawing assisting mechanism of the present invention;

FIG. 11 is a schematic diagram of a partial exploded view of the drawing aid of the present invention;

FIG. 12 is a schematic view of the mounting of the support mechanism of the present invention;

FIG. 13 is a schematic structural view of a support mechanism according to the present invention;

FIG. 14 is a second schematic view of the chair seat of the present invention;

FIG. 15 is a schematic view of a partially exploded structure of the support mechanism of the present invention;

fig. 16 is a partial structural view of the support mechanism of the present invention.

In the figure:

1. a chair seat; 11. a groove; 12. a shaft hole; 13. a slide chamber; 14. a chute; 15. connecting holes; 16. a fixing hole;

2. a storage mechanism; 21. a drawer; 211. a limiting groove; 212. a limiting hole; 22. a handle; 23. a limiting rod; 24. a slider; 25. a spring; 26. a pull ring;

3. drawing auxiliary mechanism; 31. a movable plate; 311. a strip-shaped groove; 312. a fixed shaft; 32. a first lead screw; 321. a first twisting block; 33. a guide bar; 34. a connecting seat; 35. a splint; 36. a second lead screw; 361. a second twisting block; 37. a connecting rod; 38. a connecting plate; 39. a fixed seat; 391. a clamping groove; 392. a pin shaft;

4. a support mechanism; 41. a support; 42. a support leg; 43. a horizontal axis; 44. a connecting shaft; 45. a movable seat; 46. a limiting screw; 47. a hinge plate; 48. hinging seat; 49. a pull rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The embodiment provides a technical scheme:

referring to fig. 1-3, a foldable easel includes a seat 1. The top surface of seat support 1 is located rear side department and has seted up recess 11, all set up the shaft hole 12 that is linked together with recess 11 on the both sides wall of seat support 1, lie in front side department on the both sides wall of seat support 1 and have all seted up smooth chamber 13, lie in both corners department in seat support 1 and have all seted up spout 14, all seted up connecting hole 15 on the both sides wall of spout 14, the bottom surface of seat support 1 is located both sides department and has all seted up fixed orifices 16, and two fixed orifices 16 are linked together with smooth chamber 13 and external respectively.

It should be added that when the supporting legs 42 on both sides are in the vertical state, the two movable seats 45 are relatively separated, the top ends of the limit screws 46 on the movable seats 45 are inserted into the fixing holes 16 on both sides, under the action of the limit screws 46, the movable seats 45 cannot be displaced, and the hinged plate 47 is fixed with the supporting legs 42, so that the supporting legs 42 are fixed, the seat 1 can be supported by the unfolded supporting legs 42, and the users can conveniently take pictures; when the stabilizer blade 42 of both sides is in fold condition, two sliding seats 45 are close to relatively promptly, and the top of the stop screw 46 on the sliding seat 45 inserts promptly to being located the fixed orifices 16 in the middle of, and under stop screw 46's effect, sliding seat 45 can not take place the displacement promptly, and the support 42 of accomodating by folding this moment is promptly fixed to save the space of accomodating, be convenient for transport the device.

Referring to fig. 4-6, two storage mechanisms 2 for storing articles are disposed on the front side of the seat 1. Storage mechanism 2 includes drawer 21 with sliding chamber 13 sliding connection, the spacing groove 211 has been seted up on a lateral wall of drawer 21, it has seted up spacing hole 212 to lie in the terminal department in the spacing groove 211, all there is handle 22 through bolt fixedly connected with on the lateral wall of drawer 21, sliding connection has slider 24 in the spout 14, coaxial fixed stop lever 23 on the slider 24, one of them connecting hole 15 and spacing groove 211 is passed and is pegged graft the cooperation with spacing hole 212 to the one end of stop lever 23, the other end of stop lever 23 passes another connecting hole 15 and outstanding to the external world, and the other end coaxial fixed of stop lever 23 has pull ring 26, still the cover is equipped with spring 25 on the stop lever 23, the inner wall of tight slider 24 and spout 14 is supported respectively at the both ends of spring 25.

In this embodiment, the stopper rod 23 is tightly welded to the slider 24, and the end of the stopper rod 23 is coaxially and tightly welded to the pull ring 26.

In this embodiment, the two ends of the limiting groove 211 are closed, the width of the limiting groove 211 is greater than the diameter of the limiting rod 23, when the drawer 21 is pulled outwards, the inner end of the limiting rod 23 abuts against the inner wall of the limiting groove 211 and can slide along the inner wall of the limiting groove 211, so that under the action of the limiting rod 23, when the drawer 21 is pulled outwards, the drawer 21 cannot break away from the sliding cavity 13, and tools in the drawer 21 are protected.

Referring to fig. 7-11, a foldable drawing auxiliary mechanism 3 is provided at the rear side above the seat 1. The drawing auxiliary mechanism 3 comprises a movable plate 31, two symmetrical strip-shaped grooves 311 are formed in the movable plate 31, first screw rods 32 are rotatably connected in the strip-shaped grooves 311, the two first screw rods 32 are coaxially fixed, the thread surrounding directions are opposite, the tail end of one first screw rod 32 penetrates through the movable plate 31 and protrudes to the outside, a first twisting block 321 is coaxially fixed at the tail end of the first screw rod 32, guide rods 33 are arranged on two sides of each first screw rod 32, and two ends of each guide rod 33 are fixed to the inner walls of the strip-shaped grooves 311; the bar-shaped grooves 311 are internally provided with connecting seats 34, the first screw rods 32 penetrate through the corresponding connecting seats 34 and are in threaded connection with the connecting seats 34, the guide rods 33 penetrate through the connecting seats 34 and are in sliding connection with the connecting seats 34, and L-shaped clamping plates 35 are fixed on the two connecting seats 34; the two side walls of the movable plate 31 are embedded with a fixed shaft 312 at the bottom end, and the fixed shaft 312 passes through the shaft hole 12 and is rotatably connected with the shaft hole 12; a second screw rod 36 is arranged below the movable plate 31, the tail end of the second screw rod 36 penetrates through the chair seat 1 and is coaxially and tightly welded with a second screwing block 361, connecting rods 37 are arranged on two sides of the second screw rod 36, two ends of the second screw rod 36 are rotatably connected with the inner wall of the groove 11, and two ends of each connecting rod 37 are fixed with the inner wall of the groove 11; two symmetrical connecting plates 38 are arranged above the two connecting rods 37, fixing seats 39 are arranged on two sides of each connecting plate 38, two symmetrical clamping grooves 391 are formed in each fixing seat 39, pin shafts 392 are embedded in the clamping grooves 391, the pin shafts 392 penetrate through the tail ends of the connecting plates 38 and are rotatably connected with the connecting plates 38, one fixing seat 39 is fixedly connected with the bottom surface of the movable plate 31, the second screw rods 36 penetrate through the other fixing seat 39 and are in threaded connection with the fixing seats 39, and the connecting rods 37 penetrate through the fixing seats 39 and are in sliding connection with the fixing seats 39.

In this embodiment, the first screw rod 32 is rotatably connected to the inner wall of the bar-shaped groove 311 through a bearing, the end of the first screw rod 32 is coaxially and tightly welded to the first screwing block 321, the two ends of the guide rod 33 are tightly welded to the inner wall of the bar-shaped groove 311, the clamping plate 35 is tightly welded to the top surface of the connecting seat 34, the fixing shaft 312 is tightly welded to the movable plate 31, the second screw rod 36 is rotatably connected to the inner wall of the groove 11 through a bearing, the two ends of the connecting rod 37 are tightly welded to the inner wall of the groove 11, and one of the fixing seats 39 is tightly welded to the bottom surface of the movable plate 31.

In this embodiment, the length of the splint 35 that is located the below is greater than the length of the splint 35 that is located the top, through the relative motion of two splint 35 to be convenient for carry out the centre gripping to the drawing board and fix, be convenient for draw, and two splint 35 length differences, thereby be convenient for be in the both sides of the splint 35 that is located the top and press from both sides the drawing paper tight on the drawing board through the clip, consequently the setting up of short splint 35 facilitates the use clip to fix the drawing paper on the drawing board.

It should be added that, in this embodiment, the surrounding directions of the threads of the two first screws 32 are opposite, when the first screwing block 321 is rotated, the two first screws 32 are driven to rotate synchronously, because the first screws 32 are connected with the connecting seats 34 by the threads and the surrounding directions of the threads of the two first screws 32 are opposite, the two connecting seats 34 move synchronously and relatively and drive the two clamping plates 35 to move synchronously and relatively, and the two clamping plates 35 moving relatively can clamp and fix the drawing board, thereby facilitating fixing the drawing board.

Referring to fig. 12-16, a foldable support mechanism 4 is provided under the seat 1. The supporting mechanism 4 comprises two symmetrical inverted U-shaped supports 41, the two supports 41 are fixedly connected with the bottom surface of the seat 1 through bolts, two symmetrical pull rods 49 are fixed between the two supports 41, two symmetrical support legs 42 are arranged below the supports 41, a cross shaft 43 is fixed between the two support legs 42 at the upper part, two ends of the cross shaft 43 penetrate through the supports 41 and are rotatably connected with the supports 41, and a connecting shaft 44 is fixed between the two support legs 42 at the lower part; a movable seat 45 is arranged above one side of the connecting shaft 44, a limit screw 46 is connected to the center of the movable seat 45 in a threaded manner, the top end of the limit screw 46 is in plug fit with the corresponding fixed hole 16, two symmetrical hinged plates 47 are arranged below the movable seat 45, the connecting shaft 44 penetrates through the bottom ends of the hinged plates 47 and is rotatably connected with the hinged plates 47, hinged seats 48 are hinged to the top ends of the two connecting shafts 44, and the hinged seats 48 are fixedly connected with the bottom surface of the movable seat 45.

In this embodiment, two ends of the pull rod 49 are respectively welded to the supports 41 on two sides, the cross shaft 43 is welded to the two legs 42, the connecting shaft 44 is welded to the two legs 42, and the hinge seat 48 is welded to the bottom surface of the movable seat 45.

In the present embodiment, the size of the groove 11 is matched with the size of the movable plate 31, and the design facilitates the movable plate 31 to be folded and stored in the groove 11.

When the chair is used specifically, a user firstly unscrews the limiting screws 46 on the two sides, the top ends of the limiting screws 46 are separated from the fixed holes 16, meanwhile, the user pulls the support legs 42 towards the two sides, the support legs 42 pull the hinged plate 47 and the movable seats 45 to move, the two movable seats 45 synchronously move towards the two sides along the pull rod 49, when the limiting screws 46 move to the positions right below the fixed holes 16 on the two sides, the support legs 42 are in a vertical state, at the moment, the user rotates the limiting screws 46, the top ends of the limiting screws 46 are inserted into the fixed holes 16, the support legs 42 complete fixing, and the support legs 42 support the chair seat 1; then, a user holds the second twisting block 361 and rotates the second twisting block 361, the second twisting block 361 rotates and drives the second screw rod 36 to rotate, at this time, the fixed seat 39 moves in the groove 11, the fixed seat 39 slides along the connecting rod 37, at the same time, the fixed seat 39 drives the connecting plate 38 to move, the connecting plate 38 drives the movable plate 31 to move, at this time, the fixed shaft 312 on the movable plate 31 rotates along the shaft hole 12, the movable plate 31 simultaneously turns upwards to a proper angle, then, the user places the drawing board between the two clamping plates 35 and holds the first twisting block 321 to rotate, the first twisting block 321 rotates and drives the first screw rod 32 to synchronously rotate, the two clamping plates 35 can be driven to synchronously move relatively along with the rotation of the first screw rod 32, the clamping plates 35 simultaneously clamp and fix the drawing board, and finally, the user sits on the chair seat 1 to draw a picture;

when drawing the instrument when needs take, the user at first outwards stimulates pull ring 26, pull ring 26 drives gag lever post 23 outwards side motion, slider 24 slides along spout 14 promptly, spring 25 is compressed simultaneously, the end of gag lever post 23 breaks away from spacing hole 212 promptly this moment, user's personnel pulls drawer 21 outwards simultaneously, drawer 21 slides to the outside along smooth chamber 13 promptly, user loosens pull ring 26 this moment, spring 25 resets and drives gag lever post 23 motion, the end of gag lever post 23 supports tight spacing groove 211 promptly, user can take the drawing instrument in the drawer 21 this moment.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A folding easel comprises a chair seat (1), and is characterized in that: two storage mechanisms (2) for storing articles are arranged on the front side of the seat (1), a foldable drawing auxiliary mechanism (3) is arranged on the rear side of the seat (1), and a foldable supporting mechanism (4) is arranged below the seat (1); the top surface of seat support (1) is located rear side department and sets up fluted (11), all set up shaft hole (12) that are linked together with recess (11) on the both sides wall of seat support (1), it has all seted up smooth chamber (13) to lie in front side department on the both sides wall of seat support (1), it has all seted up spout (14) to lie in both corners department in seat support (1), connecting hole (15) have all been seted up on the both sides wall of spout (14), the bottom surface of seat support (1) is located both sides department and has all seted up fixed orifices (16), and two fixed orifices (16) are linked together with smooth chamber (13) and external world respectively.

2. The folding easel according to claim 1, wherein: the storage mechanism (2) comprises a drawer (21) which is in sliding connection with a sliding cavity (13), a limiting groove (211) is formed in one side wall of the drawer (21), a limiting hole (212) is formed in the limiting groove (211) at the tail end, a handle (22) is fixedly connected to the outer side wall of the drawer (21) through a bolt, a sliding block (24) is connected to the sliding groove (14) in a sliding mode, a limiting rod (23) is coaxially fixed to the sliding block (24), one end of the limiting rod (23) penetrates through one connecting hole (15) and the limiting groove (211) and is in plug-in fit with the limiting hole (212), the other end of the limiting rod (23) penetrates through the other connecting hole (15) and protrudes out to the outside, a pull ring (26) is coaxially fixed to the other end of the limiting rod (23), and a spring (25) is further sleeved on the limiting rod (23), two ends of the spring (25) respectively abut against the inner walls of the sliding block (24) and the sliding groove (14).

3. The folding easel according to claim 1, wherein: draw drawing complementary unit (3) including fly leaf (31), two symmetrical bar groove (311) have been seted up on fly leaf (31), all rotate in bar groove (311) and be connected with first lead screw (32), two first lead screw (32) coaxial fixation and screw thread surround opposite direction, one of them the end of first lead screw (32) passes fly leaf (31) and outstanding to the external world, just the end coaxial fixation of first lead screw (32) has first wrong piece (321), the both sides of first lead screw (32) all are equipped with guide arm (33), the both ends of guide arm (33) are fixed with the inner wall in bar groove (311).

4. A foldable easel according to any one of claims 1 to 3, characterised in that: the bar-shaped grooves (311) are internally provided with connecting seats (34), the first screw rods (32) penetrate through the corresponding connecting seats (34) and are in threaded connection with the connecting seats (34), the guide rods (33) penetrate through the connecting seats (34) and are in sliding connection with the connecting seats (34), and L-shaped clamping plates (35) are fixed on the two connecting seats (34); and the two side walls of the movable plate (31) are respectively embedded with a fixed shaft (312) at the bottom end, and the fixed shafts (312) penetrate through the shaft holes (12) and are rotationally connected with the shaft holes (12).

5. The folding easel according to any one of claims 1-4, wherein: a second screw rod (36) is arranged below the movable plate (31), the tail end of the second screw rod (36) penetrates through the chair seat (1) and is coaxially and tightly welded with a second screwing block (361), connecting rods (37) are arranged on two sides of the second screw rod (36), two ends of the second screw rod (36) are rotatably connected with the inner wall of the groove (11), and two ends of each connecting rod (37) are fixed with the inner wall of the groove (11); two symmetrical connecting plates (38) are arranged above the connecting rods (37), fixing seats (39) are arranged on two sides of each connecting plate (38), two symmetrical clamping grooves (391) are formed in each fixing seat (39), pin shafts (392) are embedded in the clamping grooves (391), the pin shafts (392) penetrate through the tail ends of the connecting plates (38) and are rotatably connected with the connecting plates (38), one of the fixing seats (39) is fixedly connected with the bottom surface of the movable plate (31), the second screw rod (36) penetrates through the other fixing seat (39) and is in threaded connection with the fixing seat (39), and the connecting rods (37) penetrate through the fixing seats (39) and are in sliding connection with the fixing seats (39).

6. The folding easel according to claim 1, wherein: supporting mechanism (4) include two supports (41) symmetrical and that are the type of falling U, two bottom surface fixed connection, two of support (41) all pass through bolt and seat support (1) are fixed with two symmetrical pull rod (49) between support (41), the below of support (41) is equipped with two symmetrical stabilizer blade (42), two it is fixed with cross axle (43) to be located the top department between stabilizer blade (42), the both ends of cross axle (43) are passed support (41) and are rotated with support (41) and be connected, two it is fixed with connecting axle (44) to be located the below department between stabilizer blade (42).

7. The folding easel according to claim 6, wherein: one side top of connecting axle (44) is equipped with free seat (45), the center department threaded connection of free seat (45) has stop screw (46), the cooperation of pegging graft with corresponding fixed orifices (16) on the top of stop screw (46), the below department of free seat (45) all is equipped with two symmetrical articulated slab (47), connecting axle (44) pass the bottom of articulated slab (47) and rotate with articulated slab (47) and be connected, two the top of connecting axle (44) all articulates there is free bearing (48), free bearing (48) and the bottom surface fixed connection of free seat (45).

8. The folding easel according to claim 2, wherein: the two ends of the limiting groove (211) are closed, and the width of the limiting groove (211) is larger than the diameter of the limiting rod (23).

9. The folding easel according to claim 4, wherein: the length of the lower clamping plate (35) is greater than the length of the upper clamping plate (35).

10. The folding easel according to claim 3, wherein: the size of the groove (11) is matched with that of the movable plate (31).