CN219940007U - Easel - Google Patents

Abstract

The utility model relates to an easel, which comprises a base, two front supporting feet, rear supporting feet, a bottom support, a sliding sleeve, two first knob screws, a supporting plate and a top clamp, wherein the two front supporting feet are rotatably connected to the bottom of the base and are symmetrically arranged left and right; the utility model is greatly convenient to use and breaks through the limit of the application range.

Description

Easel

Technical Field

The utility model relates to an easel.

Background

The easel is a bracket for supporting or fixing canvas or drawing board, which can be divided into a tripod, a quadrangle frame, a drawing (telescopic) frame, a folding frame and the like according to the type; the tripod type easel is most common because of convenient use and folding, and can be used indoors and outdoors; the existing tripod type easel is provided with the bottom support for fixing the bottom of the drawing board, but the bottom support is arranged at the top of the tripod and the height cannot be adjusted, so that the gravity center and the height of the drawing board placed on the bottom support are high, if the longitudinal size of the drawing board is large, the easel can be easily toppled, meanwhile, the height of the drawing board is greatly increased, and a user can only draw in a standing posture, so that the use is inconvenient; in addition, the existing collet is provided with two positioning devices for compacting the drawing board, so that the fixing mode of the collet to the bottom of the drawing board is two-point, but the distance between the two positioning devices is fixed and not adjustable, and when the transverse size of the drawing board is smaller than the distance between the two positioning devices, the two positioning devices cannot fix the drawing board, so that the application range is limited and needs to be further improved.

Disclosure of Invention

Aiming at the current state of the art, the utility model aims to provide the easel which can adjust the fixed height of the easel to effectively prevent the occurrence of toppling, is greatly convenient to use and breaks through the limitation of the application range.

The technical scheme adopted for solving the technical problems is as follows: the easel comprises a base, two front supporting feet which are rotatably connected to the bottom of the base and are symmetrically arranged left and right, and rear supporting feet which are rotatably connected to the bottom of the base and are positioned behind the two front supporting feet, and is characterized in that a bottom support is further arranged between the two front supporting feet, the bottom support comprises two sliding sleeves which are respectively and movably sleeved outside the two front supporting feet, two first knob screws which are respectively inserted and screwed at the rear sides of the two sliding sleeves, and two supporting plates which are detachably fixed between the two sliding sleeves, the threaded ends of the first knob screws are tightly propped against the outer wall at the rear sides of the front supporting feet, a boss is outwards formed on the outer wall at the front sides of the two sliding sleeves, a convex column is outwards formed at the end parts of the two boss, a baffle head is outwards formed at the end parts of the two convex columns, correspondingly, a first bending plate is upwards formed at the rear side edge of the supporting plate, and two symmetrically arranged hoist hole combinations are formed in the first bending plate; the calabash hole combination comprises a plurality of calabash holes which are transversely arranged in sequence; the small hole end of each calabash hole is upward, the outer diameter of the end part of each boss is larger than the inner diameter of the large hole end of each calabash hole, the outer diameter of each convex column is smaller than the inner diameter of the small hole end of each calabash hole, the outer diameter of each blocking head is larger than the inner diameter of the small hole end of each calabash hole and smaller than the inner diameter of the large hole end of each calabash hole, and the convex columns on the two sliding sleeves are embedded in the small hole ends of any calabash hole respectively positioned in two calabash hole combinations so that the blocking heads on the two sliding sleeves are all arranged in front of the first bending plate; the collet is still including transversely locating the holding strip of layer board top, the trailing edge of holding strip upwards is formed with the layering, both ends are still all interlude about the holding strip are provided with a vertical second knob screw that distributes, correspondingly, two bilateral symmetry parallel distribution's slotted hole has been seted up in the layer board, two the screw thread end of second knob screw passes two slotted holes downwards respectively and all stretches out the below of layer board, two still all overlap on the screw thread end of second knob screw establishes the spiro union and has a nut, two the nut all compresses tightly on the bottom outer wall of layer board.

Preferably, the back support structure further comprises a top clamp, wherein the top clamp comprises a back support rod vertically penetrating through the base, a seat block fixed at the upper end of the back support rod, and a top plate transversely and movably arranged between the upper end of the back support rod and the seat block and having a back and forth movement function, a baffle plate vertically arranged is formed on the front side of the top plate, and the lower side of the baffle plate is arranged in front of the back support rod.

Preferably, the top of base upwards is formed with the lug, rectangular hole has been seted up between the top of lug and the bottom of base, the vertical interlude setting of back board pole is in rectangular hole, open slot has been seted up on the rear side inner wall in rectangular hole, open slot has divided into two bilateral symmetry's side pieces with the rear side of lug.

Preferably, a first locking plate is further arranged at the rear of the protruding block, a wing plate is outwards formed on the left side and the right side of the first locking plate, and the front ends of the two wing plates are respectively and rotatably connected to the outer walls of the two side blocks.

Preferably, the front side of the first locking plate is provided with a rotating block forwards, the rotating block stretches into the space between the two side blocks, the outer wall of the front side of the rotating block is provided with a first clamping block forwards, and the end part of the first clamping block penetrates through the open slot and stretches into the rectangular hole to be matched with the outer wall of the rear side of the backer rod.

Preferably, the rear side edge of the top plate is downwards provided with a tail plate, a guide rod which is transversely distributed is further inserted into the tail plate, the front end of the guide rod is fixed on the backer rod, a spring is further sleeved on the guide rod, the spring is arranged between the tail plate and the backer rod, and the front end and the rear end of the spring are respectively propped against the rear side outer wall of the backer rod and the front side outer wall of the tail plate.

Preferably, a rectangular column is formed downwards at the bottom of the seat block, correspondingly, a guide groove is formed in the top plate, and the end part of the rectangular column penetrates through the guide groove and is fixed at the upper end of the backer rod.

Preferably, a second locking plate is further arranged above the seat block, two ear plates which are symmetrically arranged left and right are outwards formed on the lower side edge of the second locking plate, the two ear plates are respectively and rotatably connected to the left side and the right side of the seat block, and the outer walls of the ear plates are in sliding fit with the top outer wall of the top plate.

Preferably, two second clamping blocks which are symmetrically arranged left and right are outwards formed on the outer walls of the ear plates, and the two second clamping blocks are matched with the top outer walls of the top plates.

Preferably, two rotation stopping blocks which are symmetrically arranged left and right are outwards formed on the outer walls of the two ear plates, and the positions of the two rotation stopping blocks are matched with the positions of the two second clamping blocks respectively.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the bottom support is detachably fixed between the two front supporting feet and the height can be adjusted according to the requirement, meanwhile, the top clamp capable of moving up and down can be used for fixing the drawing board and adjusting the gravity center and the whole height of the drawing board, even if the longitudinal size of the drawing board is large, the falling can be effectively prevented by only adjusting the fixed height of the easel, and the drawing board is fixed at a height suitable for being used as a drawing by a user to sit for drawing, so that the use is greatly facilitated; in addition, the utility model realizes the linear fixation of the drawing board by the clamping strip in the collet, and the clamping strip can effectively fix the drawing board no matter what the transverse size of the drawing board is, thereby breaking through the limitation of the application range.

Drawings

FIG. 1 is a left front side block diagram of the present utility model;

FIG. 2 is a left front side block diagram of the shoe of the present utility model;

FIG. 3 is a diagram showing the construction of the connection between the second knob screw, the bracket, and the nut of the present utility model;

FIG. 4 is a left rear side view of the first locking plate and base of the present utility model;

fig. 5 is a structural view showing the connection among the second locking plate, the top plate, the guide rod and the spring according to the present utility model.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.

As shown in fig. 1 to 5, an easel comprises a base 1, two front supporting feet 2 rotatably connected to the bottom of the base 1 and symmetrically arranged left and right, and rear supporting feet 5 rotatably connected to the bottom of the base 1 and positioned behind the two front supporting feet 2, wherein a bottom bracket 3 is further arranged between the two front supporting feet 2, the bottom bracket 3 comprises two sliding sleeves 31 respectively movably sleeved outside the two front supporting feet 2, two first knob screws 32 respectively inserted and screwed at the rear sides of the two sliding sleeves 31, and a supporting plate 33 detachably fixed between the two sliding sleeves 31, the threaded ends of the first knob screws 32 are tightly propped against the outer wall at the rear sides of the front supporting feet 2, a boss 311 is outwards formed on the outer wall at the front sides of the two sliding sleeves 31, a retaining head 313 is outwards formed at the end parts of the two boss 311, a first bending plate 331 is upwards formed at the rear side edge of the two bending plates correspondingly, and two symmetrically arranged left and right hole combinations are formed in the first bending plates; the gourd hole combination comprises a plurality of gourd holes 332 which are sequentially and transversely arranged; the small hole end of each calabash hole 332 is upward, the outer diameter of the end part of the boss 311 is larger than the inner diameter of the large hole end of the calabash hole 332, the outer diameter of the convex column 312 is smaller than the inner diameter of the small hole end of the calabash hole 332, the outer diameter of the baffle 313 is larger than the inner diameter of the small hole end of the calabash hole 332 and smaller than the inner diameter of the large hole end of the calabash hole 332, the convex columns 312 on the two sliding sleeves 31 are embedded in the small hole end of any calabash hole 332 respectively positioned in two calabash hole combinations, so that the baffle 313 on the two sliding sleeves 31 are arranged in front of the first bending plate 331 to prevent falling; the collet 3 further comprises a holding strip 34 transversely arranged above the supporting plate 33, a pressing strip 341 is upwards formed on the rear side edge of the holding strip 34, a second knob screw 35 which is vertically distributed is inserted into the left end and the right end of the holding strip 34, correspondingly, two slotted holes 333 which are symmetrically distributed in parallel are formed in the supporting plate 33, the threaded ends of the two second knob screws 35 respectively penetrate through the two slotted holes 333 downwards and extend out to the lower side of the supporting plate 33, a nut 36 is sleeved on the threaded ends of the two second knob screws 35, and the two nuts 36 are tightly pressed on the outer wall of the bottom of the supporting plate 33.

The easel further comprises a top clamp 4, the top clamp 4 comprises a backing rod 41 vertically penetrating through the base 1, a seat block 43 fixed at the upper end of the backing rod 41, and a top plate 42 transversely and movably arranged between the upper end of the backing rod 41 and the seat block 43 and having a back-and-forth movement function, a baffle 421 vertically arranged is formed on the front side of the top plate 42, and the lower side of the baffle 421 is arranged in front of the backing rod 41.

The top of base 1 upwards is formed with lug 101, has seted up rectangular hole 102 between the top of lug 101 and the bottom of base 1, and the vertical interlude of back pole 41 sets up in rectangular hole 102, has seted up open slot 103 on the rear side inner wall of rectangular hole 102, and open slot 103 divides into two bilateral symmetry's side piece 104 of lug 101 rear side.

The rear of the protruding block 101 is further provided with a first locking plate 44, a wing plate 441 is outwardly formed on the left side and the right side of the first locking plate 44, and the front ends of the two wing plates 441 are rotatably connected to the outer walls of the two side blocks 104 respectively.

The front side of the first locking plate 44 is formed with a rotating block 442 forward, the rotating block 442 extends between the two side blocks 104, a first clamping block 443 is formed on the front side outer wall of the rotating block 442 forward, and the end of the first clamping block 443 passes through the open slot 103 and extends into the rectangular hole 102 and cooperates with the rear side outer wall of the backer rod 41.

The rear side edge of the top plate 42 is downwards provided with a tail plate 422, a guide rod 45 which is transversely distributed is also inserted into the tail plate 422, the front end of the guide rod 45 is fixed on the backing rod 41, a spring 46 is also sleeved on the guide rod 45, the spring 46 is arranged between the tail plate 422 and the backing rod 41, and the front end and the rear end of the spring 46 are respectively propped against the rear side outer wall of the backing rod 41 and the front side outer wall of the tail plate 422.

A rectangular column 431 is formed downward at the bottom of the seat block 43, and correspondingly, a guide groove 423 is formed in the top plate 42, and an end of the rectangular column 431 passes through the guide groove 423 and is fixed to the upper end of the backup bar 41.

The second locking plate 47 is further arranged above the seat block 43, two ear plates 471 which are symmetrically arranged left and right are outwards formed on the lower side edge of the second locking plate 47, the two ear plates 471 are respectively and rotatably connected to the left side and the right side of the seat block 43, and the outer walls of the ear plates 471 are in sliding fit on the top outer wall of the top plate 42.

Two second clamping blocks 472 which are symmetrically arranged left and right are outwards formed on the outer walls of the two ear plates 471, and the two second clamping blocks 472 are matched with the top outer wall of the top plate 42.

Two rotation stopping blocks 473 which are arranged in bilateral symmetry are outwards formed on the outer walls of the two ear plates 471, and the positions of the two rotation stopping blocks 473 are matched with the positions of the two second clamping blocks 472 respectively.

A plurality of rib plates 314 uniformly arranged along the circumferential direction at equal angles are also formed between the outer wall of the boss 311 and the outer wall of the front side of the sliding sleeve 31.

The using method comprises the following steps: the two sliding sleeves 31 are moved up and down to be buckled on the convex posts 312 on the two sliding sleeves 31 respectively by any one of the two gourd holes 332 respectively, then the heights of the two sliding sleeves 31 are continuously moved up and down until the two sliding sleeves are positioned on the same horizontal line and the first knob screws 32 on the two sliding sleeves 31 are screwed down, thus the supporting plate 33 is detachably fixed between the two sliding sleeves 31, the height of the supporting plate 33 can be conveniently adjusted at any time according to the requirement, and then the bottom of the drawing board is placed on the top of the supporting plate 33 and between the first bending plate 331 and the pressing bar 341.

The first locking plate 44 is turned up to drive the first clamping block 443 on the rotating block 442 to rotate downwards, when the end part of the first clamping block 443 leaves the rear outer wall of the backing bar 41, a gap is generated between the backing bar 41 and the front inner wall of the rectangular hole 102, and the backing bar 41 is in an active state; then, the back support 41 is moved upward until the top plate 42 is higher than the drawing board, and then the drawing board is inclined against the front side of the back support 41; the second locking plate 47 is turned up to prevent the two second locking blocks 472 from contacting the top outer wall of the top plate 42, so that the top plate 42 is in a movable state, then the top plate 42 is pushed forward and the backing bar 41 is moved down to enable the top of the drawing board to extend between the baffle 421 and the backing bar 41, after the top plate 42 is loosened, the top plate 42 is moved backward under the action of the rebound force of the spring until the baffle 421 is pressed on the front side of the top of the drawing board, the second locking plate 47 is turned backward to enable the outer walls of the two lug plates 471 to rotate along the top outer wall of the top plate 42, and the second locking blocks 472 on the two lug plates 471 are rotated above the top plate 42 to compress the top outer wall of the top plate 42 until the end parts of the two rotation stopping blocks 473 are contacted with the top outer wall of the top plate 42, so that the top fixing of the top of the drawing board is completed.

The two second knob screws 35 are loosened and the clip strip 34 is moved backward until the compression bar 341 is compressed against the bottom front side of the drawing board, and then the two second knob screws 35 are tightened, thus completing the fixation of the bottom of the drawing board.

Finally, the first locking plate 44 is pressed downwards to drive the first clamping block 443 on the rotating block 442 to rotate upwards until the end part of the first clamping block 443 presses the rear outer wall of the backing bar 41 forwards to press the backing bar 41 by means of the front inner wall of the rectangular hole 102, so that the backing bar 41 is prevented from moving up and down to complete locking; thus, the fixation of the drawing board is completed.

According to the utility model, the bottom bracket 3 is detachably fixed between the two front supporting feet 2 and the height can be adjusted according to the requirement, and meanwhile, the top clamp 4 capable of moving up and down can be used for fixing the drawing board and adjusting the gravity center and the whole height of the drawing board, so that the falling can be effectively prevented as long as the fixed height of the easel is adjusted even if the longitudinal size of the drawing board is large, and the drawing board is fixed at a height suitable for a user to sit for drawing, thereby greatly facilitating the use; in addition, the utility model realizes the straight line fixing of the drawing board by the clamping strip 34 in the bottom support 3, and the clamping strip 34 can effectively fix the drawing board no matter what the transverse size of the drawing board is, thereby breaking through the limit of the application range.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; while the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications may be made to the techniques described in the foregoing embodiments, or that certain features may be substituted for those illustrated therein; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The easel comprises a base, two front supporting feet which are rotatably connected to the bottom of the base and are symmetrically arranged left and right, and rear supporting feet which are rotatably connected to the bottom of the base and are positioned behind the two front supporting feet, and is characterized in that a bottom support is further arranged between the two front supporting feet, the bottom support comprises two sliding sleeves which are respectively and movably sleeved outside the two front supporting feet, two first knob screws which are respectively inserted and screwed at the rear sides of the two sliding sleeves, and two supporting plates which are detachably fixed between the two sliding sleeves, the threaded ends of the first knob screws are tightly propped against the outer wall at the rear sides of the front supporting feet, a boss is outwards formed on the outer wall at the front sides of the two sliding sleeves, a convex column is outwards formed at the end parts of the two boss, a baffle head is outwards formed at the end parts of the two convex columns, correspondingly, a first bending plate is upwards formed at the rear side edge of the supporting plate, and two symmetrically arranged hoist hole combinations are formed in the first bending plate; the calabash hole combination comprises a plurality of calabash holes which are transversely arranged in sequence; the small hole end of each calabash hole is upward, the outer diameter of the end part of each boss is larger than the inner diameter of the large hole end of each calabash hole, the outer diameter of each convex column is smaller than the inner diameter of the small hole end of each calabash hole, the outer diameter of each blocking head is larger than the inner diameter of the small hole end of each calabash hole and smaller than the inner diameter of the large hole end of each calabash hole, and the convex columns on the two sliding sleeves are embedded in the small hole ends of any calabash hole respectively positioned in two calabash hole combinations so that the blocking heads on the two sliding sleeves are all arranged in front of the first bending plate; the collet is still including transversely locating the holding strip of layer board top, the trailing edge of holding strip upwards is formed with the layering, both ends are still all interlude about the holding strip are provided with a vertical second knob screw that distributes, correspondingly, two bilateral symmetry parallel distribution's slotted hole has been seted up in the layer board, two the screw thread end of second knob screw passes two slotted holes downwards respectively and all stretches out the below of layer board, two still all overlap on the screw thread end of second knob screw establishes the spiro union and has a nut, two the nut all compresses tightly on the bottom outer wall of layer board.

2. The easel of claim 1 further comprising a top clip, wherein the top clip comprises a backer rod vertically inserted in the base, a seat block fixed at the upper end of the backer rod, and a top plate transversely and movably arranged between the upper end of the backer rod and the seat block to have a forward and backward movement function, a baffle plate vertically arranged is formed at the front side of the top plate, and the lower side of the baffle plate is arranged in front of the backer rod.

3. An easel as claimed in claim 2, wherein the top of the base is formed with a bump upwards, a rectangular hole is provided between the top of the bump and the bottom of the base, the backing bar is vertically inserted in the rectangular hole, an open slot is provided on the inner wall of the rear side of the rectangular hole, and the open slot divides the rear side of the bump into two side blocks which are arranged in bilateral symmetry.

4. An easel as claimed in claim 3, wherein a first locking plate is further provided at the rear of the protruding block, a wing plate is outwardly formed at both the left and right sides of the first locking plate, and the front ends of the two wing plates are rotatably connected to the outer walls of the two side blocks, respectively.

5. The easel of claim 4 wherein the front side of the first locking plate is formed with a rotating block extending between the two side blocks, the front side outer wall of the rotating block is formed with a first clamping block extending forward, and the end of the first clamping block passes through the open slot and extends into the rectangular hole and cooperates with the rear side outer wall of the backer rod.

6. The easel of claim 5 wherein a tail plate is formed downwardly on the rear side edge of the top plate, a guide rod is inserted into the tail plate and arranged in a transverse direction, the front end of the guide rod is fixed on the backer rod, a spring is further sleeved on the guide rod and arranged between the tail plate and the backer rod, and the front end and the rear end of the spring are respectively abutted against the rear side outer wall of the backer rod and the front side outer wall of the tail plate.

7. An easel as in claim 6 wherein a rectangular post is formed downwardly at the bottom of the block and correspondingly a guide slot is formed in the top plate, the end of the rectangular post passing through the guide slot and being secured to the upper end of the backer bar.

8. An easel as in claim 7 wherein a second locking plate is further provided above the base block, two symmetrically disposed ear plates are formed outwardly on the lower side edge of the second locking plate, the two ear plates are rotatably connected to the left and right sides of the base block respectively, and the outer wall of the ear plates is slidably attached to the top outer wall of the top plate.

9. The easel of claim 8, wherein two second clamping blocks which are symmetrically arranged are outwards formed on the outer walls of the two ear plates, and the two second clamping blocks are mutually matched with the top outer wall of the top plate.

10. An easel as in claim 9 wherein two rotation stopping blocks are formed outwardly on the outer walls of the two ear plates and are symmetrically arranged left and right, and the positions of the two rotation stopping blocks are respectively matched with the positions of the two second clamping blocks.