CN208658194U - Clamping and fixing body at the top of the drawing board of easel - Google Patents

Abstract

Clamping and fixing body at the top of the drawing board of easel, supporting plate is set in support leg including easel, connecting tube is set in the fixed reservation of support leg top, the top clamping and fixing body of drawing board is set in connecting tube, it is characterized in that top clamping and fixing body includes fixed bin, connection cover and clamping plate, it is set on fixed bin and sets clamping plate in connection cover, fixed bin lower end inserting column and connecting tube are mating, fixed bin upper end system is left, right shell body and rear baffle, it is left, right shell body inner wall cotter, rear baffle inner wall positioning plate, it is limit film processed in opening and riser on front side of fixed bin, limiting tooth processed in limit film, riser two sides fabrication hook, connection cover lower end connecting plate, elastic slice and limit skateboard, arc groove processed in connecting plate, pin is caught in arc groove, limit skateboard inner wall extension plate, clamping plate side sliding block, fabrication tooth under sliding block, perforation is opened in sliding block , it is set between sliding block and the rear baffle of fixed bin and sets guide rod in spring, the positioning plate cooperation of guide rod one baffle ring and rear baffle processed.

Description

Clamping and fixing body at the top of the drawing board of easel

Technical field

The utility model relates to easels, more particularly to clamping and fixing body at the top of the drawing board of easel.

Background technique

For placing the shelf of drawing board when easel is drawing, traditional easel is all wood structure, by nail to each wood Item fixation forms easel, usually uses indoors, and to take field to, the structural volume is big, inconvenient to carry, therefore people Telescopic easel is invented, the support leg of telescopic easel can be shortened and be folded, compact, carrying side after contraction Just.The clamping and fixing body of one drawing board can be all set at the top of telescopic easel, and existing clamping and fixing body generally wraps A vertical elevating lever is included, elevating lever drives oscilaltion by rocking handle, and the upper end of elevating lever connects pressing plate, pressing plate and lifting Bar is rotated by eccentric shaft to be connected, and is arranged fixed plate and sliding panel on the elevating lever below pressing plate, fixed plate and sliding panel it Between spring is set, the head of sliding panel is formed with lateral clamping plate, and pressing plate is pressed into contact with when pushing with sliding panel, when people will draw When drawing board on frame takes out, need first to rotate the pressing plate on head upwards by eccentric shaft, work of the rotation rear fender in eccentric shaft Under, no longer sliding panel is fixed, then pushes sliding panel to move forward by people, the clamping plate of sliding panel brought forward transverse direction It disengages with drawing board, is at this time rotated down pressing plate by eccentric shaft, compress sliding panel again, last people can pass through rotation Turn rocking handle to be raised above elevating lever, drawing board can take out；When drawing board to be put into and when being fixedly clamped, people put drawing board Onto easel, being rotated further by rocking handle declines elevating lever, and elevating lever drives fixed plate, sliding panel and clamping plate decline, until clamping plate pressure In drawing board upper end, at this time with the upward rotary pressure plate of hand, spring just drives sliding panel and clamping plate backward under the action of restoring force, presss from both sides Board clamping drawing board, finally presses down on pressing plate, and pressing plate is rotated down and is pushed down under the action of eccentric shaft sliding panel, makes clamping plate pair Drawing board keeps clamped condition.The structure has the drawback that: one, drawing board taking-up, the operational motion clamped are cumbersome, cumbersome； Two, structure is complicated for the clamping and fixing body, improves manufacturing cost；Three, longitudinal fixed plate and sliding panel, and lateral folder Plate seems lofty, globality poor, and especially during transportation, the lateral clamping plate of monolithic is easy to touch disconnected, damage, intensity difference, shadow Ring service life.

Summary of the invention

The purpose of this utility model is to overcome prior art there are the shortcomings that, a kind of drawing board is provided and takes out, clamp behaviour Facilitate, structure is simple, and manufacturing cost is low, good integrity, and structural strength is high, guarantees folder at the top of the drawing board of the easel of service life Fasten mechanism.

The technical solution of clamping and fixing body is at the top of the drawing board of the utility model easel: the support leg including easel, branch The lower supporting plate of drawing board is set on support foot, and the top of support leg is connected and fixed seat, connecting tube is arranged in fixing seat, sets in connecting tube Set the top clamping and fixing body of drawing board, it is characterised in that: the top clamping and fixing body include fixed bin, connection cover and Connection cover is arranged in clamping plate on fixed bin, and clamping plate is arranged in connection cover, and the fixed bin lower end is formed with inserting column, inserting column and company Take over mating, fixed bin upper end is formed with right baffle-plate, right shell body and rear baffle, and the inner wall of left and right baffle is formed with pin, rear to keep off The inner wall of plate is formed with positioning plate, and the front side of fixed bin is opening, is formed with limit film and riser in the opening of front side, in limit film It is formed with the limiting tooth of protrusion, the two sides of riser are formed with grab, and the connection cover lower end is formed with connecting plate, elastic slice and L-shaped limit Position slide plate, the connecting plate, elastic slice and L-shaped limit skateboard are two groups of left and right, and symmetrically, arc are formed in connecting plate The pin of slot, fixed bin is caught in arc groove, and pin is matched with connecting plate, elastic slice, is formed in limit skateboard inner wall to convex Extension plate out, extension plate are matched with the grab of riser, and the clamping plate side is formed with sliding block, under sliding block system there are two or two A above latch is provided with perforation in sliding block, and spring is arranged between sliding block and the rear baffle of fixed bin, guide rod is arranged in spring, One of guide rod is formed with baffle ring, and baffle ring is matched with the positioning plate of rear baffle, in the other end insertion perforation of guide rod.

The utility model discloses clamping and fixing bodies at the top of a kind of drawing board of easel, when drawing board is put into easel by people When above or by the drawing board on easel taking out, 1-2 millimeters of connection cover of distance can be pushed backward with finger, makes L shape under connection cover Extension plate on the inside of limit skateboard is moved inward to be mutually disengaged with the grab on fixed bin riser, at this time can be by connection cover through arc Slot is flipped up opening around the pin of fixed bin, and connection cover drives clamping plate to be flipped up opening, and people can be by connection cover and folder Plate opens up certain angle (usually 15 ° -40 °), and by connection cover outer wall and fixed bin inner wall snap-fit, in this way Connection cover and clamping plate will not be fallen after people unclamp hand, and after clamping plate upward Unscrew, spring is just acted in elastic force Under push sliding block forward, integrated clamping plate forward upward (tilting upward) is mobile on sliding block, drawing board can be put on easel at this time, Or take out the drawing board on easel, clamping plate will not block drawing board；When putting drawing board well will be clamped fixed to it, only need to use Hand slightly firmly presses down on connection cover, overcomes connection cover and is rotated down with the clamping resistance of fixed bin, connection cover is rotated down It is in a horizontal state afterwards with fixed bin, while connection cover drive clamping plate rotates be in a horizontal state downwardly together, makes the card of sliding block lower end Tooth is meshed with the limiting tooth in limit film, and spring slightly pushes forward sliding block again at this time, and sliding block drives clamping plate, connection cover one Rise and move forward 1-2 millimeters, make extension plate under connection cover on the inside of L shape limit skateboard again with the grab on fixed bin riser It matches, to prevent connection cover from opening, and clamping plate at this time is to release state forwardly under the action of the spring, and people can be to After push clamping plate, integrated sliding block overcomes the elastic force of spring to move backward (due on the latch and limit film under sliding block on clamping plate Limiting tooth cooperation, therefore when sliding block is pushed backward, sliding block can one lattice of a lattice push backward, sliding block but can not be to Forward It is dynamic, therefore sliding block at this time and clamping plate are only capable of but moving forward to pusher), until clamping plate clamps the upper end of drawing board.We Clamping and fixing body at the top of the drawing board of case easel, one, to take, put drawing board easy to operate；Two, structure is simple, and manufacturing cost is low； Three, fixed bin, connection cover and clamping plate are in rectangular shape when without using shrinking, and good integrity, structural strength is high, avoid transporting When damaged in collision, guarantee service life.

Clamping and fixing body at the top of the drawing board of the utility model easel is formed with barb on the front end of the limit skateboard, Drag hook is formed under sliding block, drag hook is matched with barb.There are drag hook and barb, sliding block is limited, prevents clamping plate and sliding block Abjection.Skewed slot is formed between the rear side and rear baffle of the left baffle and right baffle, the tilt angle of skewed slot is 15 ° -40 °, tiltedly Slot is in contact with connection cover lower end.When connection cover and clamping plate open up, the rear side of connection cover is contacted with the skewed slot, and skewed slot can Position-limiting action is played to the open angle of connection cover and clamping plate, prevents its open angle excessive, and keeps the arc groove of connecting plate de- The pin of fixed bin inner wall out.The inserting column outer wall is evenly equipped with dome arc and concave arc, and dome arc and concave arc are spaced apart from each other point Cloth, is formed with inwardly angled plug surface under dome arc, and dome arc and plug surface are matched with inside pipe wall is connect.By inserting column outer wall Dome arc outer diameter slightly larger than connection inside pipe wall internal diameter, when inserting column be inserted into connecting tube when, first pass through inclined plug surface with It cooperates, and insertion is easy, and is extruded in the inner wall of connecting tube after insertion by the bigger dome arc of outer diameter, keeps the two mating tight It is close, reliable.Reinforced sheet is formed between the inserting column and fixed bin.There is reinforced sheet, improves the structure between inserting column and fixed bin Intensity.The front side of the limiting tooth is inclined-plane, and the rear side of limiting tooth is to face directly, and the front side of latch is straight block face, the rear side of latch Straight block face for oblique surface, latch is matched with facing directly for limiting tooth, and the oblique surface of latch is matched with the inclined-plane of limiting tooth.By The front side of latch is straight block face under sliding block, and rear side is oblique surface, and the front side of limit film upper limit tooth is to face directly, and rear side is oblique Face, therefore when sliding block and limit film cooperate, sliding block pushes backward, and oblique surface and inclined-plane cooperate, sliding block can one lattice of a lattice backward Push, but limiting tooth face directly block latch straight block face cooperation, sliding block can not but move forward, therefore sliding block and folder at this time Plate is only capable of but moving forward to pusher.The inner wall of the left baffle and right baffle is formed with convex nozzle, in the outer wall of limit skateboard It is formed with groove, groove is matched with the convex nozzle of the inner wall of left and right baffle.There is convex nozzle, when opening connection cover upwards, convex nozzle is stuck in The lower end of connection cover, connection cover and clamping plate will not be fallen after people unclamp hand in this way, had groove, closed connection cover downwards When conjunction, convex nozzle is caught in groove, reserves a space to convex nozzle, the outer wall of convex nozzle and connection cover is avoided to be squeezed.

Detailed description of the invention

Fig. 1 is the stereoscopic schematic diagram that clamping and fixing body at the top of drawing board is arranged on easel；

Fig. 2 is the stereoscopic schematic diagram of clamping and fixing body at the top of drawing board；

Fig. 3 is the structural schematic diagram of clamping and fixing body at the top of drawing board；

Fig. 4 is the decomposing state stereoscopic schematic diagram of clamping and fixing body at the top of drawing board；

Fig. 5 is the decomposing state structural schematic diagram of clamping and fixing body at the top of drawing board；

Fig. 6 is the stereoscopic schematic diagram of connection cover；

Fig. 7 is the inserting column inserting state structural schematic diagram of connecting tube and fixed bin.

Specific embodiment

The utility model relates to clamping and fixing bodies at the top of a kind of drawing board of easel, as shown in Fig. 1-Fig. 7, including easel Support leg 1, the lower supporting plate 11 of drawing board is set in support leg, and the top of support leg is connected and fixed seat 12, is arranged in fixing seat The top clamping and fixing body 14 of drawing board is arranged in connecting tube for connecting tube 13, it is characterised in that: the top is fixedly clamped machine Structure 14 includes fixed bin 2, connection cover 4 and clamping plate 6, and connection cover is arranged on fixed bin, clamping plate is arranged in connection cover, described consolidates Determine 2 lower end of box and be formed with inserting column 20, inserting column and connecting tube 13 are mating, and fixed bin upper end is formed with right baffle-plate 21,22 and of right shell body Rear baffle 23, the inner wall of left and right baffle are formed with pin 24, and the inner wall of rear baffle is formed with positioning plate 26, and the front side of fixed bin is to open Mouthful, it is formed with limit film 27 and riser 28 in the opening of front side, the limiting tooth 29 of protrusion, the two sides system of riser are formed in limit film There is grab 32,4 lower end of connection cover is formed with connecting plate 41, elastic slice 42 and L-shaped limit skateboard 43, the connecting plate, bullet Piece and L-shaped limit skateboard are two groups of left and right, and symmetrically, arc groove 44, the pin 24 of fixed bin 2 are formed in connecting plate It being caught in arc groove, pin is matched with connecting plate, elastic slice, inwardly projecting extension plate 45 is formed in 43 inner wall of limit skateboard, Extension plate is matched with the grab 32 of riser 28, and 6 side of clamping plate is formed with sliding block 61, under sliding block system there are two or two with Upper latch 63 is provided with perforation 66 in sliding block 61, and spring 67 is arranged between sliding block and the rear baffle 23 of fixed bin 2, sets in spring Guide rod 68 is set, one of guide rod is formed with baffle ring 69, and baffle ring is matched with the positioning plate 26 of rear baffle 23, the other end insertion of guide rod In perforation 66.When drawing board is put on easel by people or takes out the drawing board on easel, the finger company of promotion backward can be used The distance for connecing 1-2 millimeters of lid moves inward the extension plate 45 of 43 inside of L shape limit skateboard under connection cover 4 perpendicular with fixed bin 2 Grab 32 on plate 28 is mutually disengaged, and can be flipped up connection cover 4 around the pin 24 of fixed bin 2 through arc groove 44 beat at this time It opens, connection cover 4 drives clamping plate 6 to be flipped up opening, and connection cover 4 and clamping plate 6 can be opened up certain angle (usually by people It is 15 ° -40 °), and by connection cover outer wall and 2 inner wall snap-fit of fixed bin, connection cover 4 and folder in this way after people unclamp hand Plate 6 will not be fallen, and after clamping plate upward Unscrew, spring 67 just pushes forward sliding block 61, sliding block under the effect of elasticity Upper integrated 6 forward upward of clamping plate (tilting upward) is mobile, and drawing board can be put on easel at this time, or by the drawing board on easel It takes out, clamping plate will not block drawing board；When putting drawing board well will be clamped fixed to it, only need to slightly be exerted oneself the company of downward push with hand Lid 4 is connect, connection cover is overcome and is rotated down with the clamping resistance of fixed bin 2, after connection cover is rotated down and fixed bin is in level State, while connection cover drive clamping plate 6 rotates be in a horizontal state downwardly together, makes the latch 63 and limit film 27 of 61 lower end of sliding block On limiting tooth 29 be meshed, spring 67 is slight again at this time pushes forward sliding block 61, and sliding block drives clamping plate 6, connection cover 4 together 1-2 millimeters are moved forward, makes the extension plate 45 of 43 inside of L shape limit skateboard under connection cover again and on 2 riser 28 of fixed bin Grab 32 matches, thus prevent connection cover 4 from opening, and clamping plate 6 at this time is to release shape forwardly under the effect of spring 67 State, people can push clamping plate backward, and integrated sliding block 61 overcomes the elastic force of spring to move backward (due to the card under sliding block on clamping plate Limiting tooth 29 in tooth 63 and limit film 27 cooperates, therefore when pushing sliding block 61 backward, sliding block can one lattice of a lattice to pusher Dynamic, sliding block can not but move forward, therefore sliding block at this time and clamping plate are only capable of but moving forward to pusher), until clamping plate 6 clamp the upper end of drawing board.Clamping and fixing body at the top of the drawing board of this programme easel, one, to take, put drawing board easy to operate；Two, it ties Structure is simple, and manufacturing cost is low；Three, fixed bin, connection cover and clamping plate without using shrink when be in rectangular shape, good integrity, Structural strength is high, and damaged in collision when avoiding transporting guarantees service life.It is formed with barb 47 on the front end of the limit skateboard 43, Drag hook 62 is formed under sliding block 61, drag hook is matched with barb.There are drag hook 62 and barb 47, sliding block 61 is limited, prevents Only clamping plate 6 and sliding block 61 are deviate from.Skewed slot 37, skewed slot are formed between the right baffle-plate 21 and the rear side and rear baffle 23 of right shell body 22 Tilt angle be 15 ° -40 °, skewed slot is in contact with 4 lower end of connection cover.When connection cover 4 and clamping plate 6 open up, connection The rear side of lid is contacted with the skewed slot 37, and skewed slot can play position-limiting action to the open angle of connection cover 4 and clamping plate 6, prevents its dozen Angle of release is spent greatly, and makes the pin 24 of abjection 2 inner wall of fixed bin of arc groove 44 of connecting plate 4.20 outer wall of inserting column is evenly equipped with Dome arc 33 and concave arc 34, dome arc and concave arc are spaced apart from each other distribution, and inwardly angled plug surface is formed under dome arc 35, dome arc and plug surface are matched with 13 inner wall of connecting tube.By the outer diameter of the dome arc 33 of 20 outer wall of inserting column slightly larger than connection The internal diameter of 13 inner wall of pipe first passes through inclined plug surface 35 and cooperates with it when inserting column 20 is inserted into connecting tube 13, and insertion is easy, The inner wall of connecting tube 13 is extruded in after insertion by the bigger dome arc 33 of outer diameter, keeps the two mating close, reliable.It is described Reinforced sheet 38 is formed between inserting column 20 and fixed bin 2.There is reinforced sheet 38, the structure improved between inserting column 20 and fixed bin 2 is strong Degree.The front side of the limiting tooth 29 is inclined-plane 30, and the rear side of limiting tooth is to face 31 directly, and the front side of latch 63 is straight block face 64, card The rear side of tooth is oblique surface 65, and facing directly for the straight block face of latch and limiting tooth 29 31 matches, the oblique surface 65 of latch 63 with limit The inclined-plane 30 of position tooth 29 matches.Since the front side of the lower latch 63 of sliding block 61 is straight block face 64, rear side is oblique surface 65, limit film The front side of 27 upper limit teeth 29 is to face 31 directly, and rear side is inclined-plane 30, therefore when sliding block 61 and limit film 27 cooperate, sliding block is backward Push, oblique surface 65 and inclined-plane 30 cooperate, sliding block can one lattice of a lattice push backward, but facing directly for limiting tooth 29 31 blocks latch 63 Straight block face 64 cooperate, sliding block can not but move forward, therefore sliding block 61 at this time and clamping plate 6 are only capable of to pusher, but cannot be to Preceding movement.The right baffle-plate 21 and the inner wall of right shell body 22 are formed with convex nozzle 25, are formed with groove 46 in the outer wall of limit skateboard 43, recessed Slot is matched with the convex nozzle 25 of the inner wall of left and right baffle 21,22.There is convex nozzle 25, when opening connection cover 4 upwards, convex nozzle 25 blocks In the lower end of connection cover 4, connection cover and clamping plate 6 will not be fallen after people unclamp hand in this way, had groove 46, made connection cover 4 downwards closure when, convex nozzle 25 is caught in groove 46, reserves a space to convex nozzle, avoid convex nozzle and the outer wall of connection cover 4 by To extruding.

Claims (7)

1. clamping and fixing body at the top of the drawing board of easel, the lower support of drawing board is arranged in support leg for the support leg (1) including easel Plate (11), the top of support leg are connected and fixed seat (12), and connecting tube (13) are arranged in fixing seat, and the top of drawing board is arranged in connecting tube Portion's clamping and fixing body (14), it is characterised in that: the top clamping and fixing body (14) includes fixed bin (2), connection cover (4) and clamping plate (6), connection cover is set on fixed bin, clamping plate is set in connection cover, the fixed bin (2) lower end is formed with slotting Column (20), inserting column and connecting tube (13) are mating, and fixed bin upper end is formed with right baffle-plate (21), right shell body (22) and rear baffle (23), the inner wall of left and right baffle is formed with pin (24), and the inner wall of rear baffle is formed with positioning plate (26), and the front side of fixed bin is to open Mouthful, it is formed with limit film (27) and riser (28) in the opening of front side, the limiting tooth (29) of protrusion is formed in limit film, riser Two sides are formed with grab (32), and the connection cover (4) lower end is formed with connecting plate (41), elastic slice (42) and L-shaped limit skateboard (43), the connecting plate, elastic slice and L-shaped limit skateboard are two groups of left and right, and symmetrically, arc groove are formed in connecting plate (44), the pin (24) of fixed bin (2) is caught in arc groove, and pin is matched with connecting plate, elastic slice, in limit skateboard (43) Wall is formed with inwardly projecting extension plate (45), and extension plate is matched with the grab (32) of riser (28), the clamping plate (6) side Be formed with sliding block (61), two or more latches (63) be formed under sliding block, are provided in sliding block (61) perforation (66), sliding block with Spring (67) are set between the rear baffle (23) of fixed bin (2), guide rod (68) are set in spring, one of guide rod is formed with baffle ring (69), baffle ring is matched with the positioning plate (26) of rear baffle (23), in the other end insertion perforation (66) of guide rod.

2. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: the limit skateboard (43) Front end on be formed with barb (47), drag hook (62) are formed under sliding block (61), drag hook is matched with barb.

3. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: the right baffle-plate (21) and Be formed with skewed slot (37) between the rear side and rear baffle (23) of right shell body (22), the tilt angle of skewed slot is 15 ° -40 °, skewed slot with Connection cover (4) lower end is in contact.

4. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: inserting column (20) outer wall It is evenly equipped with dome arc (33) and concave arc (34), dome arc and concave arc are spaced apart from each other distribution, are formed with and are tilted towards under dome arc Interior plug surface (35), dome arc and plug surface are matched with connecting tube (13) inner wall.

5. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: the inserting column (20) and solid Determine to be formed with reinforced sheet (38) between box (2).

6. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: the limiting tooth (29) Front side is inclined-plane (30), and the rear side of limiting tooth is to face directly (31), and the front side of latch (63) is straight block face (64), and the rear side of latch is Oblique surface (65), the straight block face of latch are matched with face directly (31) of limiting tooth (29), the oblique surface of latch and limiting tooth it is oblique Face (30) matches.

7. clamping and fixing body at the top of the drawing board of easel as described in claim 1, it is characterised in that: the right baffle-plate (21) and The inner wall of right shell body (22) is formed with convex nozzle (25), is formed with groove (46), groove and left and right baffle in the outer wall of limit skateboard (43) The convex nozzle of inner wall (25) of (21,22) matches.