CN211130147U

CN211130147U - Easel desk convenient to angle of adjustment

Info

Publication number: CN211130147U
Application number: CN201921527116.5U
Authority: CN
Inventors: 吕建民
Original assignee: Tangshan Jiuge Shuju Metal Products Co ltd
Current assignee: Tangshan Jiuge Shuju Metal Products Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-31
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to an easel desk convenient to angle of adjustment, it includes support frame and table, be fixed with the table connecting axle on the support frame, the table articulates through connecting piece and table connecting axle, it has last vaulting pole to articulate on the table, it has lower vaulting pole to articulate on the support frame go up to articulate through the articulated shaft between vaulting pole and the lower vaulting pole, still be equipped with the supporting component who supports angle between the two between last vaulting pole and the lower vaulting pole. Belongs to the technical field of desks. The utility model has the effect of flexibility and convenience when adjusting the angle of the table board.

Description

Easel desk convenient to angle of adjustment

Technical Field

The utility model belongs to the technical field of the technique of desk and specifically relates to an easel desk convenient to angle of adjustment.

Background

In fine arts teaching and planar design process, often use this kind of instrument of easel, when the teacher explains the drawing skill to the student, need often show the drawing legend to the student, the teacher is in the in-process of explaining for the student, for convenient student observation, needs the angle that often changes the easel.

The utility model discloses a have now that publication number is CN 205125485U's chinese utility model patent, it discloses a portable easel, including the cross arm, cross arm top both sides are equipped with the dead lever, are equipped with the recess on the dead lever, be equipped with the swing joint seat on two preceding angles in cross arm top, swing joint seat lower part fixed connection, upper portion swing joint bracket, the bracket both sides are equipped with sliding connection seat, are equipped with set screw on the sliding connection seat, connect the table through sliding connection seat above the bracket, be equipped with the bracing piece below the bracket, the bracing piece upper end is connected on the bracket, and the lower extreme is installed in the recess above the dead lever. When the angle is adjusted, the table plate needs to be lifted by one hand, the supporting rod is shifted by the other hand, the supporting rod is located in the groove at the ideal position, and the angle is adjusted by two hands in the process, so that the angle adjusting device is not convenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an easel desk convenient for angle adjustment, which has the effect of flexibility and convenience when adjusting the angle of the desk board.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides an easel desk convenient to angle of adjustment, includes support frame and table, be fixed with the table connecting axle on the support frame, the table articulates with the table connecting axle through the connecting piece, it has last vaulting pole to articulate on the table, it has lower vaulting pole to articulate on the support frame go up the vaulting pole and articulate through the articulated shaft between the lower vaulting pole, still be equipped with the supporting component who supports angle between the two at last vaulting pole between the lower vaulting pole.

By adopting the technical scheme, after the table plate is lifted, the angle between the upper support rod and the lower support rod can be changed, and the angle between the upper support rod and the lower support rod can be determined through the support component, so that the inclination angle of the table plate can be determined.

The utility model discloses further set up to: and a first groove for storing the upper support rod when the upper support rod is flatly placed on the table board and the lower support rod is closed is formed in the lower support rod.

Through adopting above-mentioned technical scheme, when the table was put peacefully, the second recess that the vaulting pole just was located down to the last vaulting pole.

The utility model discloses further set up to: the supporting component comprises a fixed shaft connected in the first groove, a first connecting rod is hinged to the fixed shaft, a second groove is formed in the upper supporting rod, the inner diameter of the second groove is larger than the opening of the second groove, two rows of clamping grooves are formed in the opening ends of the two side walls of the second groove, a sliding block which can slide in the second groove is hinged to the first connecting rod, and a pair of limiting columns which are clamped with the clamping grooves in a mutual mode are arranged on the portion, exposed out of the second groove, of the sliding block.

Through adopting above-mentioned technical scheme, when lifting table angle of adjustment, the sliding block can be because the action of gravity of self slides down along the second recess, when the position of draw-in groove was slided to spacing post on the sliding block, loosens the table in the hand, and the table can drive the vaulting pole and have a effect that compresses tightly downwards to make spacing post joint in the draw-in groove.

The utility model discloses further set up to: the first connecting rod is provided with hanging rings, the hinged shaft is also provided with hanging rings, and an extension spring for pulling the first connecting rod is connected between the two hanging rings.

Through adopting above-mentioned technical scheme, when the sliding block slides down along the second recess because extension spring connects on the rings of head rod, so extension spring's pulling force can have a trend towards draw-in groove direction motion at the sliding block gliding in-process pulling head rod, thereby drive the spacing post card of sliding block in nearest draw-in groove, when angle regulation once more needs, continue upwards to lift the table, go up the contained angle grow between vaulting pole and the lower vaulting pole, contained angle between head rod and the lower vaulting pole diminishes, when the spacing post breaks away from last draw-in groove, extension spring pulling force disappears, put down the table this moment, spacing post can be along the lateral wall of second recess upwards sliding always, thereby lay the table flat on the support frame.

The utility model discloses further set up to: the cross-sectional shape of the sliding block is consistent with that of the second groove.

Through adopting above-mentioned technical scheme, can prevent that the sliding block from breaking away from the second recess by the radial direction of second recess.

The utility model discloses further set up to: the table is characterized in that a storage device is fixedly connected to the side wall of one end, far away from the table connecting shaft, of the table plate, and the storage device comprises a storage groove used for storing articles.

Through adopting above-mentioned technical scheme, drawing in-process, can place article such as painting brush that the free-hand needs used in the storing groove.

The utility model discloses further set up to: the support frame is connected with a storage box for storing articles.

Through adopting above-mentioned technical scheme, through set up the receiver on the support frame, made things convenient for the student to deposit some article when the drawing.

To sum up, the utility model discloses a beneficial technological effect does:

1. by lifting one side of the table plate far away from the table plate connecting shaft, the table plate can rotate by taking the table plate connecting shaft as a central line under the action of the angle adjusting device, the included angle between the upper supporting rod and the lower supporting rod is increased, at the moment, the sliding block can slide downwards along the second groove under the action of self gravity, and as the stretching spring is connected between the first connecting rod and the hinge shaft, the stretching spring can pull the first connecting rod to drive the limiting column to be clamped into the nearest clamping groove, the table plate in hand is loosened, the table plate can drive the upper supporting rod to have a downward pressing effect, so that the limiting column is clamped into the clamping groove more tightly, and a required angle position is obtained;

2. the sliding block and the limiting column adopt plastic parts to be replaced conveniently in time after being damaged after being used for a long time.

Drawings

Fig. 1 is a schematic structural view of the table of the present invention when lifted.

Fig. 2 is a schematic structural view of the angle adjusting device of the present invention when opened.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of the utility model when the desk board is placed on the floor.

Fig. 5 is a schematic structural view of the angle adjusting device according to the present invention when closed.

Fig. 6 is a schematic structural view between the upper stay bar and the lower stay bar when the angle adjusting device of the present invention is closed.

Fig. 7 is a schematic structural view of one side of the table of the present invention.

Fig. 8 is a schematic structural view of the storage device according to the present invention.

Fig. 9 is a schematic structural view of the boom mechanism of the present invention.

Fig. 10 is a partially enlarged schematic view of a portion B in fig. 9.

Fig. 11 is a partially enlarged schematic view of a portion C in fig. 9.

In the figure, 1, a table plate; 2. a support frame; 201. a table board connecting shaft; 3. an angle adjusting device; 301. an upper stay bar; 302. a lower stay bar; 303. a first fixed block; 304. a longitudinal support bar; 305. a second fixed block; 306. hinging a shaft; 307. a first groove; 308. a second groove; 4. a connecting member; 401. a connecting portion; 402. a rotating part; 5. a support assembly; 501. a fixed shaft; 502. a first connecting rod; 504. a slider; 505. a hoisting ring; 506. a card slot; 507. a limiting column; 508. an extension spring; 6. a boom mechanism; 601. a bolt; 602. a transverse support bar; 603. a sleeve; 604. a second connecting rod; 605. a connecting portion; 606. connecting holes; 607. fixing the rod; 608. a gap; 7. a storage device; 701. a fixed part; 702. a storage tank; 8. an accommodating box.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses an easel desk convenient to angle of adjustment, including support frame 2, the one end of keeping away from ground on support frame 2 is equipped with table connecting axle 201, is connected with table 1 through a pair of connecting piece 4 on table connecting axle 201. Connecting piece 4 includes connecting portion 401 and rotation portion 402, connecting portion 401 passes through screw fixed connection and is close to border department on 1 lower surface of table, rotation portion 402 is the ring structure cover on table connecting axle 201, can carry out rotation each other between rotation portion 402 and the table connecting axle 201, when the angle of table 1 needs to be adjusted, through the one end that lifts up table 1 and table connecting axle 201 and deviate from mutually, table 1 can use table connecting axle 201 to rotate as the center. In order to fix the table board 1 at a required angle, a pair of angle adjusting devices 3 are further hinged between the table board 1 and the supporting frame 2.

The angle adjusting device 3 comprises an upper stay 301 and a lower stay 302, and the upper stay 301 and the lower stay 302 are hinged through a hinge shaft 306. A pair of first fixing blocks 303 is fixed to one end of the table board 1, which is far away from the table board connecting shaft 201, and the upper stay bar 301 is hinged to the table board 1 through the first fixing blocks 303. The supporting frame 2 is provided with a pair of longitudinal supporting rods 304 which are perpendicular to the table board connecting shaft 201 and connected with two ends of the table board connecting shaft 201, the inner side surfaces of the longitudinal supporting rods 304 are fixedly connected with second fixing blocks 305, and the lower supporting rods 302 are connected to the longitudinal supporting rods 304 through being hinged to the second fixing blocks 305.

As shown in fig. 2 and 3, a supporting assembly 5 for supporting an angle between the upper brace 301 and the lower brace 302 is connected between the upper brace 301 and the lower brace 302, the lower brace 302 is further provided with a first groove 307, an inner diameter of the first groove 307 is consistent with a size of an opening, when the table board 1 is placed flat, the upper brace 301 and the lower brace 302 are combined together, and at this time, the upper brace 301 is located in the first groove 307 on the lower brace 302 (refer to fig. 5). The upper brace 301 is provided with a second groove 308, and the opening size of the second groove 308 is smaller than the inner diameter of the second groove 308.

The support component 5 comprises a fixed shaft 501 fixed in a first groove 307 of the lower support rod 302, a first connecting rod 502 is hinged on the fixed shaft 501, the other end of the first connecting rod 502 is hinged with a sliding block 504 which can slide in a second groove 308, the cross section shape of the sliding block 504 is consistent with that of the second groove 308, and because the opening of the second groove 308 is smaller than the inner diameter, the sliding block 504 can only be inserted into the second groove 308 from two ends of the second groove 308 and can not be separated from the radial direction of the second groove 308. Since the hinge shafts 306 are provided at both ends of the second groove 308 during the sliding, the sliding block 504 does not slide out of the second groove 308 from the axial direction of the second groove 308.

One end of the first connecting rod 502 close to the fixed shaft 501 is welded with a hanging ring 505, the hinge shaft 306 is also welded with the hanging ring 505, an extension spring 508 is connected between the two hanging rings 505, two rows of clamping grooves 506 are formed in the opening ends of the two side walls of the second groove 308, a pair of limiting columns 507 which are mutually clamped with the clamping grooves 506 are arranged on the part of the sliding block 504 exposed out of the second groove 308, and the limiting columns 507 and the sliding block 504 are integrally formed into a plastic piece. When the table board 1 is lifted to adjust the angle, the included angle between the upper support rod 301 and the lower support rod 302 is increased, because one end of the first connecting rod 502 is hinged to the fixing shaft 501, and the fixing shaft 501 is fixed in the lower support rod 302, the first connecting rod 502 can only rotate with the fixing shaft 501, the other end of the first connecting rod 502 can drive the sliding block 504 to slide downwards along the second groove 308, and meanwhile, due to the action of the extension spring 508, the first connecting rod 502 can be pulled to drive the limiting column 507 of the sliding block 504 to be clamped in the nearest clamping groove 506 in the sliding process of the sliding block 504, at this time, the table board 1 in hand is released, the table board 1 can drive the upper support rod 301 to have a downward pressing effect, so that the limiting column 507 is clamped in the clamping groove 506 more firmly, the angle between the upper support rod 301 and the lower support rod 302 cannot be changed, and the table board 1 is fixed at a required angle.

As shown in fig. 4, when the table board 1 needs to be placed flat, the table board 1 is lifted upward first to slide the limiting posts 507 on the sliding block 504 out of the last slot 506, at this time, the distance between the two hanging rings 505 is the shortest, the extension spring 508 does not generate a pulling force, then the table board 1 is quickly placed down, the limiting posts 507 on the sliding block 504 slide upward along the side wall between every two slots 506 until the limiting posts 507 slide to a position without the slots 506, the table board 1 can be placed flat on the support frame 2, at this time, the upper support rod 301 drives the first connecting rod 502 to be located in the first groove 307 of the lower support rod 302 (refer to fig. 5 and 6), at this time, the distance between the two hanging rings 505 is the largest, and therefore, the pulling force of the extension spring 508 is the largest.

As shown in fig. 7 and 8, a bank 7 is fixedly connected to a side wall of the table 1 at an end away from the angle adjusting device 3 by screws, and the bank is brought into contact with the side wall and the bottom surface of the table 1 by a fixing portion 701 and is locked between the bottom surface of the table 1 and the fixing portion 701 by screws. The storage groove 702 of the storage device 7 is integrally formed with the fixing portion 701, and the opening direction of the storage groove 702 is upward along the tabletop. Since the storage device 7 has a limited space, a storage box 8 for storing articles is provided on the support frame 2.

As shown in fig. 9 and 10, a pair of boom mechanisms 6 for storing the storage boxes 8 of different heights are connected to the inner side of one of the longitudinal support rods 304. The boom mechanism 6 comprises a transverse support bar 602 connected to the longitudinal support bar 304 by means of a bolt 601, perpendicular to the longitudinal support bar 304, the transverse support bar 602 having a length d1, a sleeve 603 with the length d2 is sleeved on the transverse supporting rod 602, a second connecting rod 604 which is perpendicular to the transverse supporting rod 602 is also sleeved on both sides of the sleeve 603 on the transverse supporting rod 602, one end of the second connecting rod 604 sleeved on the transverse supporting rod 602 is a flat connecting part 605, the connecting part 605 is provided with a connecting hole 606 for the transverse supporting rod 602 to pass through, the thickness of the flat connecting part 605 is d3, the end of the transverse support bar 602 is locked by means of a bolt 601 and presses against the connection 305 (see figure 11), a second connecting rod 604 is located between the sleeve 603 and the longitudinal support bar 304 at the end of the transverse support bar 602 adjacent to the longitudinal support bar 304, and is also secured by the bolt 601. The ends of the two second connecting rods 604 far away from the transverse supporting rod 602 are connected by a fixing rod 607, and the fixing rod 607 and the two second connecting rods 604 are an integral molding.

The purpose of connecting sleeve 603 between two second connecting rods 604 is that the second connecting rods 604 are made of metal and can deform, and second connecting rods 604 are sleeved on transverse supporting rod 602 and can slide, so that two ends of second connecting rods 604 are pressed by bolts 601 in opposite directions and may deform in the use process, and by connecting sleeve 603 between two second connecting rods 604, the second connecting rods 604 can be prevented from moving on transverse supporting rod 602, and thus second connecting rods 604 can be stably fixed on transverse supporting rod 602.

The length d1 of the transverse support rod 602, the length d2 of the sleeve 603 and the thickness d3 of the flat connecting part 605 satisfy the following relations:

1. the thickness d3 of the two connecting portions 605 plus the length d2 of the sleeve 603 is slightly greater than the length d1 of the transverse support bar 602, so that a gap 608 exists between the bolt 601 and the transverse support bar 602. The purpose of this design is that both ends of the boom mechanism 6 are locked by the bolts 601, so that the end faces of the two bolts 601 are pressed against the longitudinal support bar 304 and the connecting portion 605. The purpose of making the connection portion 605 of the second link 604 flat is to increase the contact area between the second link 604 and the end surface of the bolt 601 when the bolt 601 is used for locking, and to make the connection between the boom mechanisms 6 more compact.

2. The thickness d3 of the connecting portion 605 plus the length d2 of the sleeve 603 is less than the length d1 of the lateral support bar 602. The purpose of this design is to prevent the connecting portion 605 of the second connecting rod 604 from falling on the thread of the bolt 601 when the length d1 of the transverse supporting rod 602 is too small, which would wear the connecting portion 605 and damage the second connecting rod 604.

After locking through bolt 601, can be through not hard up bolt 601 a little, make two second connecting rods 604 can take place to rotate, after second connecting rod 604 rotates, vertical height between horizontal bracing piece 602 and the dead lever 607 can change, thereby can realize putting receiver 8 of co-altitude not on two dead levers 607 that set up side by side, two pairs of second connecting rods 604 are located receiver 8's both sides respectively, then place receiver 8 stably in jib mechanism 6 through promoting second connecting rod 604, fix receiver 8 on support frame 2 through screwing up bolt 601. The storage box 8 has a double-layer structure, and can be stored in a sorted manner according to the types of articles when in use.

The implementation principle of the embodiment is as follows: when the table board 1 is lifted upwards to adjust the angle, the included angle between the upper supporting rod 301 and the lower supporting rod 302 is increased, because one end of the first connecting rod 502 is hinged on the fixing shaft 501, the first connecting rod 502 can drive the sliding block 504 to slide downwards along the second groove 308, and simultaneously, the first connecting rod 502 can be pulled to drive the limiting column 507 of the sliding block 504 to be clamped in the nearest clamping groove 506 under the action of the extension spring 508 in the sliding process of the sliding block 504, at the moment, the table board 1 in hand is loosened, the table board 1 can drive the upper supporting rod 301 to have a downward pressing effect, so that the limiting column 507 is prevented from continuously sliding downwards, the limiting column 507 is clamped in the clamping groove 506, and the table board 1 is adjusted to a required position.

When the table board 1 needs to be placed flat, the table board 1 is lifted upwards at first, so that the limiting columns 507 on the sliding blocks 504 slide out of the last clamping grooves 506, at this time, the distance between the two hanging rings 505 is shortest, the tension springs 508 cannot generate tension, then the table board 1 is quickly placed down, the limiting columns 507 on the sliding blocks 504 can slide upwards along the side walls between every two clamping grooves 506 until the limiting columns 507 slide to the positions without the clamping grooves 506, the table board 1 can be placed on the support frame 2 in a flat mode, and at this time, the upper support rods 301 can drive the first connecting rods 502 to be located in the first grooves 307 of the lower support rods 302.

Through adjusting bolt 601's elasticity, can make second connecting rod 604 take place to rotate to can realize adjusting the vertical height between horizontal bracing piece 602 and the dead lever 607, can put two dead levers 607 with the receiver 8 of co-altitude after the adjustment on, then stably place receiver 8 in jib mechanism 6 through promoting second connecting rod 604, fix receiver 8 on support frame 2 through tightening bolt 601.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an easel desk convenient to angle of adjustment, includes support frame (2) and table (1), its characterized in that: be fixed with table connecting axle (201) on support frame (2), table (1) is articulated through connecting piece (4) and table connecting axle (201), it has last vaulting pole (301) to articulate on table (1), it has down vaulting pole (302) to articulate on support frame (2) go up vaulting pole (301) and articulate through articulated shaft (306) down between vaulting pole (302), still be equipped with between last vaulting pole (301) and down vaulting pole (302) and support supporting component (5) of angle between the two.

2. The easel desk of claim 1, wherein: the lower supporting rod (302) is provided with a first groove (307) used for storing the upper supporting rod (301) when the upper supporting rod (301) is laid on the table board (1) and the lower supporting rod (302) is closed.

3. The easel desk of claim 2, wherein: the supporting component (5) comprises a fixing shaft (501) connected in a first groove (307), a first connecting rod (502) is hinged on the fixing shaft (501), a second groove (308) is formed in the upper supporting rod (301), the inner diameter of the second groove (308) is larger than the opening of the second groove (308), two rows of clamping grooves (506) are formed in the opening ends of the two side walls of the second groove (308), a sliding block (504) which is hinged with the first connecting rod (502) and can slide in the second groove (308) is further arranged in the second groove (308), and a pair of limiting columns (507) which are mutually clamped with the clamping grooves (506) is arranged on the part, exposed out of the second groove (308), of the sliding block (504).

4. The easel desk according to claim 3, wherein: the first connecting rod (502) is provided with a hanging ring (505), the hinged shaft (306) is also provided with a hanging ring (505), and an extension spring (508) for pulling the first connecting rod (502) is connected between the two hanging rings (505).

5. The easel desk according to claim 3, wherein: the cross-sectional shape of the sliding block (504) is consistent with the cross-sectional shape of the second groove (308).

6. The easel desk of claim 1, wherein: fixedly connected with storing device (7) on the lateral wall of keeping away from table connecting axle (201) one end on table (1), storing device (7) are including storing groove (702) that are used for depositing article.

7. The easel desk of claim 1, wherein: the support frame (2) is connected with a storage box (8) for storing articles.