CN208624854U - Angular adjustment liftable draws table - Google Patents

Abstract

The utility model provides a kind of angular adjustment liftable picture table, including desk body and drawing board bracket；Desk body includes braced frame and desktop, and braced frame includes two height-adjustable supporting legs, and desktop is in rectangle, and the stop configurations of top protrusion desktop upper surface are provided on front side of desktop；Drawing board bracket includes support rod and two length-adjustable telescopic rods, support rod is parallel to the front side edge edge of desktop, two telescopic rods are arranged in parallel in the left and right sides of desktop, one end of two telescopic rods is fixedly connected with support rod, the other end is hinged with desk body, and two telescopic rods can be to the position for turning to support rod on front side of desktop and flushing with the upper surface of desktop；Hinged locking structure is additionally provided between drawing board bracket and desk body.The utility model has the function of desk and easel simultaneously, and the adjusting to desktop height may be implemented, and is used with adapting to the student of different heights, very convenient.

Description

Angular adjustment liftable draws table

Technical field

The utility model relates to draw table technical field more particularly to a kind of angular adjustment liftable to draw table.

Background technique

In upper fine arts lessons, student should learn pictorial skill, also to master and related theoretical knowledge of painting.Due to mesh The preceding desk used is only applicable to the study of Theory Course, and the height of desktop is not adjustable, and is not able to satisfy different height students' It needs, it is inconvenient to use, and easel is only used for the practice of progress pictorial skill after placement drawing board, therefore, in most mathematics In the fine arts room in school, existing desk, and have easel.In this way, the space for occupying fine arts room is big, it be easy to cause fine arts room crowded, mixed Disorderly, quality of instruction is reduced.

Utility model content

For above-mentioned the technical problems existing in the prior art, the utility model provides a kind of angular adjustment liftable picture Table, while having the function of desk and easel, and the adjusting to desktop height may be implemented, to adapt to the student of different heights It uses, it is very convenient.

The technical solution of the utility model is: a kind of angular adjustment liftable picture table, including desk body and drawing board bracket；

The desk body includes braced frame and the desktop that is horizontally set at the top of the braced frame, the braced frame packet Symmetrically arranged two supporting legs are included, two supporting legs are height-adjustable telescopic structure, and the desktop is in rectangle, described The stop configurations of top protrusion desktop upper surface are provided on front side of desktop；

The drawing board bracket includes support rod and two length-adjustable telescopic rods for being connected to the support rod both ends, The support rod is parallel to the front side edge edge of the desktop, and two telescopic rods are arranged in parallel in the left and right sides of the desktop, and two One end of root telescopic rod is fixedly connected with the support rod, and the other end and the desk body are hinged, two telescopic rods and the desk body Hinged place be located at the rear side of the desktop, and two telescopic rods can to turn on front side of the desktop support rod with The position that the upper surface of the desktop flushes；

Being additionally provided between the drawing board bracket and the desk body can rotate in drawing board bracket relative to the desk body In the process by the drawing board bracket and the desk body into line-locked hinged locking structure.

As preferred: the hinged locking structure includes camshaft, internal gear, external gear and handwheel；

The camshaft includes the circular cam that shaft and diameter are greater than the shaft, and the axis of the shaft is stretched with described The hinge axes of contracting bar are overlapped, and the circular cam is eccentrically set in shaft, the both ends of the shaft respectively with the desk body And the telescopic rod rotation connection, and the handwheel and wherein one end of the shaft are fixed；

The external gear has a circle internal tooth, and the internal gear has a circle can be with the interior tooth engagement of the external gear External tooth, the internal gear is located at the inside of the external gear, and the outside circle of the internal gear is less than the tooth top of the external gear Circle；

The external gear is fixed with the desk body, and the internal gear is located inside the external gear, and in the internal gear The circular hole that there is diameter to be greater than the circular cam in portion, rotating the handwheel can drive the cam axle to drive in described Gear switches between the state for engaging and being kept completely separate with external gear.

As preferred: being provided at least one set of position limiting structure on the support rod, every group of position limiting structure is set by two intervals The adjusting buckle composition set, the adjusting buckle are slidably arranged on the support rod, and can be in the length of the support rod It is formed and is fixed between any position and the support rod on direction.

As preferred: the adjusting buckle includes snap ring, pressure handle, hanging ring screw and nut；

One side opening of the snap ring, and be arranged in parallel at the both ends of its opening there are two adjusting block, two adjusting blocks On offer corresponding through-hole；

The hanging ring screw includes ring part and the threaded shank extended radially outside in the ring part, the spiral shell Bar portion sequentially passes through the through-hole back spin top nut on two adjusting blocks far from one end of the ring part, and the threaded shank is close to institute The one end for stating ring part is also arranged with washer；

One end of the pressure handle is the hinged end hinged with the hanging ring screw, and the hinged end of the pressure handle is cam knot Structure, and when rotating at the highest protrusion that the pressure handle makes its hinged end with the washer contacts, the pressure handle and the hanging ring The threaded shank of screw is vertical.

As preferred: the both ends of the support rod, which are additionally provided with, deviates from the support rod two for limiting the position limiting structure The limit plate at end.

As preferred: the support rod include a support outer tube and two support interior bars, two support interior bars respectively from The support outer tube is protruded at the both ends of the support outer tube, is formed and is slidably connected between the support outer tube, in the support Threaded hole is offered respectively on the side wall at the both ends of outer tube, is provided in the threaded hole for limiting the support after screwing The lock nut of the relatively described support outer tube sliding of interior bar；

The position limiting structure is two groups, and one group of position limiting structure is arranged on the support rod, sets respectively in two support interior bars Set two adjustings buckle of another group of position limiting structure.

As preferred: the stop configurations are the baffle plate being detachably connected with the desktop.

As preferred: the leading flank of the desktop is arranged at intervals at least two positioning along the length direction of support rod Column, one end of the positioning column are fixedly connected with the desktop, and there is the other end of the positioning column diameter to be greater than the positioning The anti-delinking part of column；

Location hole corresponding with the quantity of the positioning column and position is provided on the baffle plate, the location hole has Mounting portion for being passed through for the anti-delinking part and the positioning region for cooperating with the positioning column.

As preferred: being additionally provided with the pneumatic tune for driving two supporting legs to carry out height adjustment in the braced frame Regulating device.

As preferred: offering the first glove hole on the desktop, be detachably provided in first glove hole to institute It states the first glove hole and carries out closed cover board, the side of the cover board is provided with absorbent wool, is provided in second glove hole Automatic pencil sharpener is additionally provided with dustbin immediately below second glove hole；

Netted storage bag is provided on the outside of two supporting legs.

The beneficial effects of the utility model are: the desktop that the utility model is horizontal by setting, and angle is set on desktop Adjustable drawing board bracket is spent, makes it both and can have the function of common desk, the study of theoretical knowledge is carried out for student；It can also After regulating the angle of drawing board bracket, sketch drawing board is put, the practice of pictorial skill is carried out for student.

Sketch drawing board is supported jointly by drawing board bracket and desktop, and it is sliding to be also effectively prevented sketch drawing board by stop configurations It is dynamic, it ensure that and support is stablized to sketch drawing board.Drawing board bracket can also meet by telescopic rod come adjustment length and place difference The sketch drawing board of size needs, suitable for different drawing demands.It, can also be by drawing board branch when not needing using drawing board bracket Frame is adjusted to the position contour with desktop, and drawing board bracket is made not stop the realization of student.

The height of desktop is adjustable simultaneously, and student can also adjust desktop height according to the needs of itself, easy to use, The indoor environment of the fine arts can be made in good order, improved learning efficiency.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is desk body status diagram when the utility model embodiment learns for specialized course's sketch；

Fig. 2 is the structural schematic diagram of the utility model embodiment；

Fig. 3 is the partial schematic diagram of the desktop leading flank in the utility model embodiment；

Fig. 4 is the sectional elevation of the inner rod in the utility model embodiment；

Fig. 5 is the structural schematic diagram of the first articulation piece in the utility model embodiment；

Fig. 6 is the structural schematic diagram of the second articulation piece and hinged locking structure in the utility model embodiment；

Fig. 7 is the structural schematic diagram that internal gear in the utility model embodiment and external gear are in meshing state；

Fig. 8 is the structural schematic diagram of internal gear and external gear in the state that is kept completely separate in the utility model embodiment；

Fig. 9 is the partial structural diagram of the support rod in the utility model embodiment；

Figure 10 is the structural schematic diagram of the adjusting buckle in the utility model embodiment；

Figure 11 is desk body status diagram when the utility model embodiment learns for Theory Course and literacy class；

Figure 12 is desk body status diagram when the utility model embodiment learns for specialized course's literary sketch；

Figure 13 is desk body status diagram when the utility model embodiment learns for specialized course's color.

1, desktop in figure；11, positioning column；12, the first glove hole；13, the second glove hole；14, cover board；2, supporting leg；21, Stabilizer blade；3, rectangle frame；31, supporter；32, support chip；4, drawing board bracket；41, support rod；411, outer tube is supported；412, it supports Interior bar；413, lock nut；414, limit plate；42, telescopic rod；421, inner rod；422, slide key；423, spring；424, it seals Plate；43, connecting rod；44, the first articulation piece；441, the first connection sheet；442, rotation axis；45, the second articulation piece；451, second connects Contact pin；461, camshaft；4611, shaft；4612, circular cam；462, internal gear；463, external gear；464, handwheel；47, it adjusts Section buckle；471, snap ring；472, pressure handle；4721, cam structure；473, hanging ring screw；474, nut；5, baffle plate；51, it positions Hole；6, gas spring；61, regulation handle；7, sketch drawing board；8, netted storage bag；9, dustbin.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all Embodiment.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, It fall within the protection scope of the utility model.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

As shown in Figure 1, the utility model embodiment provides a kind of angular adjustment liftable picture table, including desk body and drawing board Bracket 4.

As depicted in figs. 1 and 2, desk body includes braced frame and the desktop 1 that is horizontally set at the top of braced frame, support frame Frame includes rectangle frame 3 and two supporting legs 2, and rectangle frame 3 is horizontally disposed.The lower section of rectangle frame 3 is provided with supporter 31, glove Frame 31 can be used for placing books or other articles.

Two supporting legs 2 are symmetricly set on the opposite sides of rectangle frame 3.In the present embodiment, the upper end of supporting leg 2 and support Frame is fixedly connected, and the lower end of supporting leg 2 has horizontally disposed stabilizer blade 21 in the shape of a rod, and the stabilizer blade 21 of two supporting legs 2 is flat Row setting.

Two supporting legs 2 are height-adjustable telescopic structure.In the present embodiment, supporting leg 2 is inside and outside nested Telescopic structure, i.e. supporting leg 2 include the more tube-like pieces for being successively arranged and being slidably matched from the inside to the outside, the present embodiment In, tube-like piece is two, wherein the tube-like piece for being located inside is fixedly connected with rectangle frame 3, another tube-like piece and stabilizer blade 21 are solid Fixed connection.

Optionally embodiment is additionally provided with as depicted in figs. 1 and 2, in braced frame for driving two supports The pneumatic regulation unit of the progress height adjustment of leg 2.Pneumatic regulation unit is gas spring 4236.Gas spring 4236 abuts supporting leg 2 The tube-like piece positioned at outside be arranged, and one end of gas spring 4236 and rectangle frame 3 are fixed, and the other end and stabilizer blade 21 are fixed, The regulation handle 61 of gas spring 4236 is arranged on supporting leg 2.By regulation handle 61 can be realized to the height of supporting leg 2 into Row is adjusted, to play the purpose for adjusting 1 height of desktop.

Desktop 1 be in and the matched rectangle of 3 shape of rectangle frame.In the present invention, the inferior side upper all around of desktop 1 Position be indicated according to the utility model orientation in use, such as: when the front side of desktop 1 refers to before user is sitting in table Side of the desktop 1 towards user, the rear side of desktop 1 are then side opposite with the front side of desktop 1 on desktop 1, the left and right sides It is then two sides corresponding with user's left hand and right-hand direction on desktop 1 respectively.

It is fixedly connected at the top of desktop 1 and braced frame.Optionally embodiment, as depicted in figs. 1 and 2, in table The first glove hole 12 is offered on plate 1, is detachably provided in the first glove hole 12 and closed lid is carried out to the first glove hole 12 Plate, cover board 14 are concordant with 1 upper surface of desktop when being placed in the first glove hole 12.First glove hole 12 can be set into and pigment Pigment bucket can be placed in the first glove hole 12, pigment bucket by the barrel-shaped matched shape of shape after unloading cover board 14 Be embedded in the first glove hole 12, avoid using when accidentally overturn pigment bucket the case where generation.The side of cover board 14 is provided with Absorbent wool, cover board 14 be removed dig placement on the table after, absorbent wool can color paint when carry out sucking pen use.

Desktop 1 is also provided with the second glove hole 13, is provided in the second glove hole 13 automatic pencil sharpener (not shown), second The underface of glove hole 13 is additionally provided with dustbin 9, and dustbin is connected to the second glove hole by pipeline as environmentally friendly device 13, it is directly entered the sharpen a pencil pencil chip of generation of automatic pencil sharpener in dustbin 9.

The outside of two supporting legs 2 is provided with netted storage bag 8, can be used for storing whatman and scattered material of painting.

As depicted in figs. 1 and 2, the front side of desktop 1 is provided with the stop configurations of top protrusion 1 upper surface of desktop.In this reality It applies in example, stop configurations are the baffle plate 5 being detachably connected with desktop 1.Baffle plate 5 is mounted on when in use on desktop 1, not Need using when can unload, avoid baffle plate 5 from causing to hinder to the use of desktop 1.

Specifically, as shown in figure 3, the middle part of the leading flank of desktop 1 is arranged at intervals with along the length direction of support rod 41 At least two positioning columns 11.In the present embodiment, the quantity of positioning column 11 is two.One end of positioning column 11 and desktop 1 are fixed Connection, the anti-delinking part that there is the other end of positioning column 11 diameter to be greater than positioning column 11.

Location hole 51 corresponding with the quantity of positioning column 11 and position is provided on baffle plate 5, location hole 51, which has, to be used for The mounting portion passed through for anti-delinking part and the positioning region for cooperating with positioning column 11.In the present embodiment, the shape of location hole 51 Shape is L-shaped, and the same location hole 51 has a mounting portion and two positioning regions, and installation position is in L-shaped corner.In reality In use, can according to need the company between the suitable positioning region of selection and the cooperation of positioning column 11 progress baffle plate 5 and desktop 1 It connects.

As shown in Fig. 2, drawing board bracket 4 include support rod 41 and be connected to two of 41 both ends of support rod it is length-adjustable Telescopic rod 42.Support rod 41 is parallel to the front side edge edge of desktop 1, and two telescopic rods 42 are arranged in parallel in the left and right sides of desktop 1.

In the present embodiment, as shown in Fig. 2, telescopic rod 42 is made of the inner rod 421 and outer tube being mutually arranged, housing Pipe is provided with multiple positioning through hole along its length.As shown in figure 4, one end that inner rod 421 is located in outer tube is provided with The big end of stepped hole, stepped hole is closed by sealing plate 424, and slide key 422 and spring 423, slide key 422 are provided in stepped hole To be step-like, one end of slide key 422 is stretched out from the small end of stepped hole, and the part for stretching out stepped hole is spherical arc shape, spring 423 are pushed against the other end of slide key 422 on the shaft shoulder of stepped hole.Housing is stretched out in one end that slide key 422 stretches out stepped hole The positioning through hole of pipe can be realized relatively fixed between outer tube and inner sleeve.

When carrying out length adjustment to telescopic rod 42, slide key 422 is pressed inward against from the positioning through hole of outer tube, simultaneously Make inner sleeve and the opposite sliding of outer tube on along its length, when the slide key 422 of inner rod 421 slides into the next of outer tube When at a positioning through hole, the positioning through hole of the auto-extending outer tube under the elastic force effect of spring 423 of slide key 422.

As shown in Fig. 2, one end of two telescopic rods 42 is fixedly connected with support rod 41, the other end is hinged with desk body.Two The hinged place of telescopic rod 42 and desk body is located at the rear side of desktop 1, and two telescopic rods 42 can turn to branch to the front side of desktop 1 The position that strut 41 is flushed with the upper surface of desktop 1.

In the present embodiment, as shown in Fig. 2, being provided with two be supported to two telescopic rods 42 on rectangle frame 3 Support chip 32, support chip 32 are located at the left and right sides of desktop 1.Branch is turned to the front side of desktop 1 in two telescopic rods 42 Behind the position that strut 41 is flushed with the upper surface of desktop 1, two telescopic rods 42 are ridden over respectively on two support chips 32, and desktop 1 is then Positioned at the inside of entire drawing board bracket 4.

In order to increase the stability of drawing board bracket 4, one can also be connected between the hinged end of two telescopic rods 42 and is put down For row in the connecting rod 43 of support rod 41, which is located at the rear side of desktop 1.

Being additionally provided between drawing board bracket 4 and desk body can be during drawing board bracket 4 be relative to desk body rotation by picture Board mount 4 and desk body are into line-locked hinged locking structure.

In the present embodiment, wherein a telescopic rod 42 is connect by the first articulation piece 44 with rectangle frame 3.As shown in figure 5, the One articulation piece 44 two hinged the first connection sheets 441 disposed in parallel of rotation axis 442 by being made up of.One of them first company Contact pin 441 is connected and fixed with telescopic rod 42, another first connection sheet 441 is connected and fixed with rectangle frame 3.

Another telescopic rod 42 is connect by the second articulation piece 45 with rectangle frame 3, and hinged locking structure setting is in the second hinge On fitting 45.As shown in fig. 6, the second articulation piece 45 includes two the second connection sheets 451 disposed in parallel.One of them second company Contact pin 451 is connected and fixed with telescopic rod 42, another second connection sheet 451 is connected and fixed with rectangle frame 3.

As shown in fig. 6, hinged locking structure includes camshaft 461, internal gear 462, external gear 463 and handwheel 464.

As shown in Figure 6 to 8, camshaft 461 includes the circular cam 4612 that shaft 4611 and diameter are greater than shaft 4611, Circular cam 4612 is eccentrically set in shaft 4611, and the both ends of shaft 4611 connect with two the second connection sheet 451 rotations respectively It connects, i.e., the both ends of shaft 4611 and desk body and telescopic rod 42, which are formed, is rotatablely connected.Shaft 4611 is coaxial set with rotation axis 442 It sets, i.e. the hinge axes of the axis with telescopic rod 42 of shaft 4611 are overlapped, and the hinge between drawing board bracket 4 and desk body is collectively formed It connects.

Circular cam 4612 is located between two the second connection sheets 451, and handwheel 464 is located in one of the second connection sheet 451 sides far from another the second connection sheet 451, and handwheel 464 and the end of shaft 4611 are fixed.

As shown in Figure 7 and Figure 8, external gear 463 has a circle internal tooth, and internal gear 462 has a circle can be with external gear 463 Interior tooth engagement external tooth, internal gear 462 is located at the inside of external gear 463, and the outside circle of internal gear 462 is less than external gear 463 outside circle.

Internal gear 462 and external gear 463 are respectively positioned between two the second connection sheets 451.External gear 463 with connect desk body Second connection sheet 451 is fixedly connected, i.e., is formed and fixed between external gear 463 and desk body.Internal gear 462 is located in external gear 463 Portion, and it is greater than the circular hole of circular cam 4612 in the middle part of internal gear 462 with diameter.Rotating handwheel 464 being capable of drive cam shaft 461 Rotation drives internal gear 462 and external gear 463 in meshing state (as shown in Figure 7) and the state (as shown in Figure 8) being kept completely separate Between switch over.As shown in fig. 7, when internal gear 462 and external gear 463 are in meshing state, two the second connection sheets 451 It is relatively unrotatable, that is, form the angle locking between drawing board bracket 4 and desktop 1.As shown in figure 8, working as internal gear 462 and external tooth When wheel 463 is in the state being kept completely separate, can be freely rotated between two the second connection sheets 451, can to drawing board bracket 4 with Angle between desktop 1 carries out free adjusting.

Optionally embodiment, as shown in Fig. 2, support rod 41 includes in a support outer tube 411 and two supports Bar 412.Two support interior bars 412 protrude into support outer tube 411 from the both ends of support outer tube 411 respectively, between support outer tube 411 Formation is slidably connected.The both ends of support outer tube 411 are fixedly connected with two telescopic rods 42 respectively.

As shown in figure 9, offering threaded hole respectively on the side wall at the both ends of support outer tube 411, it is arranged in threaded hole There is the lock nut 474413 for opposite support outer tube 411 sliding of limitation support interior bar 412 after screwing.

At least one set of position limiting structure is provided on support rod 41, every group of position limiting structure is blocked by two spaced adjustings 47 composition of button.It is slidably arranged on support rod 41 as shown in figure 9, adjusting buckle 47, and can be in the length direction of support rod 41 On any position and support rod 41 between formed fix.

In the present embodiment, position limiting structure is two groups, and one group of position limiting structure, two support interior bars 412 are arranged on support rod 41 On be respectively set another group of position limiting structure two adjustings buckle 47.

As shown in figure 9, the both ends of support rod 41 are additionally provided with the limit for limiting position limiting structure abjection 41 both ends of support rod Position plate 414.

Optionally embodiment, as shown in Figure 10, adjusting buckle 47 includes snap ring 471, pressure handle 472, hanging ring screw 473 and nut 474.

One side opening of snap ring 471, and be arranged in parallel at the both ends of its opening there are two adjusting block, on two adjusting blocks Offer corresponding through-hole.

Hanging ring screw 473 includes ring part and the threaded shank extended radially outside in ring part.Threaded shank is separate One end of ring part sequentially passes through the through-hole back spin top nut 474 on two adjusting blocks, threaded shank close to one end of ring part also It is arranged with washer.

One end of pressure handle 472 is the hinged end hinged with hanging ring screw 473, and the hinged end of pressure handle 472 is cam structure 4721, and when rotating at the highest protrusion that pressure handle 472 makes its hinged end with washer contacts, pressure handle 472 and hanging ring screw 473 Threaded shank is vertical.

When carrying out painting practice by the utility model, baffle plate 5 is mounted in the middle part of the front side of desktop 1.According to sketch Drawing board bracket 4 is adjusted to suitable angle and two telescopic rods 42 of drawing board bracket 4 is adjusted to suitable by the size of drawing board 7 Length.Then the positioning to 7 width direction of sketch drawing board is realized by adjusting the position limiting structure on support rod 41.

If the width of sketch drawing board 7 has exceeded the length of the support outer tube 411 of support rod 41, support rod 41 is adjusted To after suitable length, two adjustings buckle 47 in interior bar 412 will be supported to be adjusted to suitable spacing, then put sketch images Plate 7 makes backing against on support rod 41 for sketch drawing board 7, and the lower end of sketch drawing board 7 is against on baffle plate 5 and desktop 1, is played To the positioning action of sketch drawing board 7.The pressure handle 472 that buckle 47 will be adjusted is depressed to sketch drawing board 7 side, at this time pressure handle 472 It places adjusting buckle 47 with washer contacts, generation pretightning force at the highest protrusion of hinged end and loosens.Pressure handle 472 is bonded sketch drawing board 7 fronts, further realize the positioning action to sketch drawing board 7.

If the width of sketch drawing board 7 is less than between two maximal regulateds adjusted between buckle 47 on support outer tube 411 Away from then buckle 47 can be adjusted by two on support outer tube 411 to carry out the positioning of width direction.

The utility model has but is not limited to following several desk body states:

The first, desk body state when learning for Theory Course and literacy class, as shown in figure 11.

Second, desk body state when for specialized course's sketch, as shown in Figure 1.

The third, desk body state when for specialized course's literary sketch, as shown in figure 12.

4th kind, desk body state when for the study of specialized course's color, as shown in figure 13.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.

Claims (10)

1. a kind of angular adjustment liftable draws table, it is characterised in that: including desk body and drawing board bracket (4)；

The desk body includes braced frame and the desktop (1) that is horizontally set at the top of the braced frame, the braced frame packet Symmetrically arranged two supporting legs (2) are included, two supporting legs (2) are height-adjustable telescopic structure, and the desktop (1) is in Rectangle is provided with the stop configurations of top protrusion desktop (1) upper surface on front side of the desktop (1)；

The drawing board bracket (4) include support rod (41) and be connected to two of the support rod (41) both ends it is length-adjustable Telescopic rod (42), the support rod (41) are parallel to the front side edge edge of the desktop (1), and two telescopic rods (42) are arranged in parallel in One end of the left and right sides of the desktop (1), two telescopic rods (42) is fixedly connected with the support rod (41), the other end and institute State that desk body is hinged, the hinged place of two telescopic rods (42) and the desk body is located at the rear side of the desktop (1), and two telescopic rods It (42) can be to the position for turning to the support rod (41) on front side of the desktop (1) and being flushed with the upper surface of the desktop (1) It sets；

Being additionally provided between the drawing board bracket (4) and the desk body can rotate in drawing board bracket (4) relative to the desk body During by the drawing board bracket (4) and the desk body into line-locked hinged locking structure.

2. angular adjustment liftable according to claim 1 draws table, it is characterised in that: the hinged locking structure includes convex Wheel shaft (461), internal gear (462), external gear (463) and handwheel (464)；

The camshaft (461) includes the circular cam (4612) that shaft (4611) and diameter are greater than the shaft (4611), institute The axis for stating shaft (4611) is overlapped with the hinge axes of the telescopic rod (42), and the circular cam (4612) is eccentrically set on In shaft (4611), the both ends of the shaft (4611) are rotatablely connected with the desk body and the telescopic rod (42) respectively, and The handwheel (464) and wherein one end of the shaft (4611) are fixed；

The external gear (463) has a circle internal tooth, and the internal gear (462) has a circle can be with the external gear (463) Interior tooth engagement external tooth, the internal gear (462) is located at the inside of the external gear (463), and the internal gear (462) Outside circle is less than the outside circle of the external gear (463)；

The external gear (463) is fixed with the desk body, and the internal gear (462) is located at the external gear (463) inside, and institute Stating in the middle part of internal gear (462), there is diameter to be greater than the circular hole of the circular cam (4612), and rotating the handwheel (464) can drive Move the camshaft (461) rotation drive the internal gear (462) and external gear (463) the state for engaging and being kept completely separate it Between switch over.

3. angular adjustment liftable according to claim 1 draws table, it is characterised in that: be provided on the support rod (41) At least one set of position limiting structure, every group of position limiting structure are made of two spaced adjusting buckles (47), the adjusting buckle (47) be slidably arranged on the support rod (41), and can on the length direction of the support rod (41) any position with It is formed and is fixed between the support rod (41).

4. angular adjustment liftable according to claim 3 draws table, it is characterised in that: the adjusting buckle (47) includes card Ring (471), pressure handle (472), hanging ring screw (473) and nut (474)；

One side opening of the snap ring (471), and be arranged in parallel at the both ends of its opening there are two adjusting block, two adjusting blocks On offer corresponding through-hole；

The hanging ring screw (473) includes ring part and the threaded shank extended radially outside in the ring part, described Threaded shank sequentially passes through the through-hole back spin top nut (474) on two adjusting blocks, the screw rod far from one end of the ring part Portion is also arranged with washer close to one end of the ring part；

One end of the pressure handle (472) be the hinged end hinged with the hanging ring screw (473), the pressure handle (472) it is hinged End is cam structure (4721), and when rotate the pressure handle (472) make at the highest protrusion of its hinged end with the washer contacts When, the pressure handle (472) is vertical with the threaded shank of the hanging ring screw (473).

5. angular adjustment liftable according to claim 3 draws table, it is characterised in that: the both ends of the support rod (41) are also It is provided with the limit plate (414) for deviating from support rod (41) both ends for limiting the position limiting structure.

6. angular adjustment liftable according to claim 3 draws table, it is characterised in that: the support rod (41) includes one Outer tube (411) and two support interior bars (412) are supported, two supports interior bar (412) are respectively from the two of support outer tube (411) The support outer tube (411) is protruded at end, is formed and is slidably connected between the support outer tube (411), in the support outer tube (411) threaded hole is offered respectively on the side wall at both ends, is provided in the threaded hole for limiting the branch after screwing Support the lock nut (474) (413) of interior bar (412) relatively described support outer tube (411) sliding；

The position limiting structure is two groups, and one group of position limiting structure is arranged on the support rod (41), divides on two support interior bars (412) Two adjustings buckle (47) of another group of position limiting structure is not set.

7. angular adjustment liftable according to claim 1 draws table, it is characterised in that: the stop configurations are and the table The baffle plate (5) that plate (1) is detachably connected.

8. angular adjustment liftable according to claim 7 draws table, it is characterised in that: the leading flank edge of the desktop (1) Be arranged at intervals on the length direction of support rod (41) at least two positioning columns (11), one end of the positioning column (11) with it is described Desktop (1) is fixedly connected, the anti-delinking part that there is the other end of the positioning column (11) diameter to be greater than the positioning column (11)；

Location hole (51) corresponding with the quantity of the positioning column (11) and position is provided on the baffle plate (5), it is described fixed Position hole (51) has the mounting portion for passing through for the anti-delinking part and the positioning region for cooperating with the positioning column (11).

9. angular adjustment liftable as claimed in any of claims 1 to 8 draws table, it is characterised in that: the support The pneumatic regulation unit for driving two supporting legs (2) to carry out height adjustment is additionally provided on frame.

10. angular adjustment liftable as claimed in any of claims 1 to 8 draws table, it is characterised in that: the desktop (1) the first glove hole (12) and the second glove hole (13) are offered on, are detachably provided in first glove hole (12) pair First glove hole (12) carries out closed cover board (14), and the side of the cover board (14) is provided with absorbent wool, and described second It is provided with automatic pencil sharpener in glove hole (13), is additionally provided with dustbin (9) immediately below second glove hole (13)；

Netted storage bag (8) is provided on the outside of two supporting legs (2).