CN104172736B - A kind of folding utility drawing table - Google Patents

A kind of folding utility drawing table Download PDF

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Publication number
CN104172736B
CN104172736B CN201410397748.XA CN201410397748A CN104172736B CN 104172736 B CN104172736 B CN 104172736B CN 201410397748 A CN201410397748 A CN 201410397748A CN 104172736 B CN104172736 B CN 104172736B
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China
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spring
steel pipe
table leg
front panel
fixed
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CN201410397748.XA
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CN104172736A (en
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金耀
刘少辉
吴达友
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Hunan Normal University
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Hunan Normal University
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Abstract

The present invention discloses a kind of folding utility drawing table, and its primary structure comprises drawing desktop, box frame, four table legs, front panel, rear board, base plates.Which overcome existing drawing table product can not fold, take up space comparatively large, can not move, the deficiency such as function singleness, have employed accordion structure, compact overall structure at critical components such as drawing desktop, table leg and T-squares, mobile, easy to carry; This drawing table dual-use, both can be used as drawing table, and can make a tour again case; Be integrated with the several functions such as illumination, folding, mobile, desktop inclination angle and height adjustable, to different height, attitude and ground environment, there is good adaptability, multidisciplinary multi-specialized drawing/drawing teaching needs and Specialty Design demand can be met preferably, good market prospects.

Description

A kind of folding utility drawing table
Technical field
The present invention relates to a kind of drawing table, particularly relate to a kind of folding utility drawing table.
Background technology
Traditional drawing table is generally combined by drawing board and desk two-piece-dress, its weak point is: the agent structures such as desktop, table leg, drawing board are fixed, not collapsible, volume is larger, move, carry inconvenience, be adapted at fixed-site to use, can not adapt to drawing table must according to need of work the situation of flexible changing position.Secondly, height of table top and the desktop inclination angle of traditional drawing table are generally all fixed, unadjustable, can not meet the requirement that different height drawing personnel and different drawing attitude regulate drawing table.Moreover traditional drawing table can not hold places T-square used of drawing.Along with the progress of technology, also there is the drawing table of height of table top and tilt adjustable in existing market, but such as can not fold, the deficiency such as large, irremovable, the function singleness of taking up space still exists.
It is reported, carry out sampling survey to the behaviour in service of drawing table in each field to show, the user of about 89% is unsatisfied with the traditional drawing table used at present, wish a kind of removable, varying environment can be adapted to, possess the drawing table of several functions simultaneously and carry out back work.Therefore, following drawing table product should meet functional requirement that is removable, collapsible, multifunctional unit.
Summary of the invention
The technical problem to be solved in the present invention is the folding utility drawing table providing a kind of collapsible, removable, easy to carry, feature richness in order to overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of folding utility drawing table, include drawing desktop, front panel, rear board, base plate, box frame, four table legs, drawing desktop is by right panel, Left-Hand Panel, the center panel forms and the center panel is connected with Left-Hand Panel with right panel respectively by hinge, box frame includes two cavitys, two long beams, left column, right column, tail trimmer one and tail trimmer two, drawing desktop is all connected with box frame by hinge with front panel, rear board and base plate are all fixed on box frame by bolt or rivet, four hangers that four table legs are stretched out with base plate bottom respectively by screw are connected.
The below of described drawing desktop is provided with desktop telescoping mechanism, and desktop telescoping mechanism is made up of steel pipe, spring outside draw ring one and draw ring two, outer steel pipe one and outer steel pipe two, interior steel pipe one and interior steel pipe two, spring base one and spring base two, center.Outside outer steel pipe one, outer steel pipe two, center, steel pipe is all individually fixed in the lower surface of the right panel of drawing desktop, Left-Hand Panel and the center panel by two anchor ear sheets; One end of interior steel pipe one is fixed with draw ring one, and the other end is fixed with spring base one; The outer surface of interior steel pipe one passes from the endoporus of outer steel pipe one; One end of interior steel pipe two is fixed with draw ring two, and the other end is fixed with spring base two; The outer surface of interior steel pipe two passes from the endoporus of outer steel pipe two; The main part of spring is installed in the tube chamber of steel pipe outside center, and both ends of the spring is separately fixed at the end face center of spring base one and spring base two; When drawing desktop launches, outside outer steel pipe one, outer steel pipe two, center, steel pipe is located along the same line.
Described table leg one is made up of expansion link and rotary positioning mechanism.Described expansion link comprises fixture and movement parts, described rotary positioning mechanism comprises branch sleeve, column type key seat, hollow, rectangular pipe, spring lock block, Compress Spring, spring block, alignment pin, spring tray, the interior cylindrical hole of column type sleeve coordinates formation to relatively rotate pair with passing hole axle between column type key seat external cylindrical surface, the both ends of the surface of column type key seat are connected with the hanger being fixed on base plate lower surface by screw, hollow, rectangular pipe is welded on the external cylindrical surface of column type sleeve, hollow, rectangular pipe is inner by being welded with spring block, expansion link fixture, by being welded with spring tray on expansion link fixture, expansion link movement parts is arranged in the groove of expansion link fixture and also can does reciprocating linear motion by relative telescopic bar fixture, alignment pin is bearing on the clear opening of spring block and spring tray in axially displaceable mode, spring lock block is fixed on the position of alignment pin near left end, Compress Spring between spring lock block and spring block is sleeved on the outside of alignment pin and coaxial with alignment pin, the alignment pin elbow of alignment pin right-hand member stretches out from the slot of hollow rectangular tube, moving axially alignment pin elbow can drive alignment pin left end to enter or exit column type key seat dowel hole one, the structure of described table leg three and table leg one, composition and function are identical, described table leg two is except lacking spring lock block, Compress Spring, spring block, alignment pin, spring tray, and all the other structures, composition are all with table leg one, the structure of described table leg four and table leg two, composition and function are identical, be bolted between the expansion link movement parts of stretching out bottom the expansion link movement parts of stretching out bottom table leg one and table leg four and be fixed with connecting rod two, between bottom table leg one and bottom table leg four, be also fixed with handle rod, be bolted between the expansion link movement parts of stretching out bottom the expansion link movement parts of stretching out bottom table leg two and table leg three and be fixed with connecting rod one.
Described folding utility drawing table also includes four universal wheels, is individually fixed in four edges of rear board with screw.The front panel of described folding utility drawing table is divided into two, be made up of left front panel and right front panel, left front panel, right front panel are connected with the left column of box frame, right column respectively by hinge, the inner surface of right front panel is also fixed with parcel tray, the upper end of right front panel is also provided with front panel lock, and this front panel lock comprises the Part I be positioned on right front panel inner surface and the Part II be positioned on right front panel outer surface.
Described folding utility drawing table also includes the handle strip be made up of upper handle strip and lower handle strip, tail trimmer one middle position of box frame is fixed in described upper handle strip one end, and the other end is free end and the unsettled outer top being placed in left front panel and right front panel intersection; Described lower handle strip one end is fixed on the base plate immediately below box frame tail trimmer two centre position, and the other end is the free end with eye-splice tooth; The eye-splice mark of mouth groove that upper handle strip free end has and the eye-splice tooth of lower handle strip free end is suitable.
Described folding utility drawing table also includes and the matching used folding T-square of described drawing desktop, this T-square comprises isometric left-half and right half part, and being connected through the hinge into one between left-half and right half part can the overall T-square of folded in half.The upper surface of described drawing desktop the center panel is fixed with spacing horizontal stripe in that one end near front panel.Described folding utility drawing table also includes Folding desk lamp, utilizes the clip bottom himself to be fixed in the edge of drawing desktop.
The present invention is compared with background technology, and the beneficial effect had is:
(1) drawing table have employed collapsible overall structure, structure simple and compact, novel uniqueness.Foldable part has drawing desktop, table leg and folding T-square: be of a size of 642mm × 1000mm after drawing desktop trails, and can draw a drawing; Drawing foldable table top, under four inside rotary foldings of table leg are fixed on base plate simultaneously, then whole drawing table can form suitcase; Under suitcase state, table leg one and table leg four can also to stretch out in outside base plate to inner rotary and substantially parallel with base plate, and the handle rod between now bottom table leg one and bottom table leg four can be used to drag suitcase and moves; Volume half after folding T-square folded in half, is convenient to collection and carries.
(2) achieve multifunctional unit and human oriented design: the overall dual-use of drawing table, both can make drawing table, can make a tour again case; During as suitcase, the article such as folding T-square, Folding desk lamp, drawing instrument, clothing can be placed in closed box, also have handle strip to facilitate getting on or off the bus, the occasion such as stair activity promotes and moves casing, and move easily by the universal wheel on rear board; Table leg one leg is dual-purpose, both can make the supporting leg of drawing table, and the handle rod between bottom table leg one and bottom table leg four also can be used as Travelling trunk pulling handle to drag bin movement; Table leg changes leg length by the expansion link of its inside thus regulate drawing height of table top within the scope of 765mm-935mm, drawing desktop inclination angle also can regulate within the scope of 0 °-68 °, therefore has good adaptability to different height, attitude and ground environment; There is chargeable Folding desk lamp, facilitate during dim light and draw.
(3) the present invention can meet multidisciplinary multi-specialized drawing/drawing teaching needs and the Specialty Design demand such as machinery, building, building, the fine arts preferably, processing and fabricating is easy, cost performance is high, still there is no this product in the market, there are good market prospects.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 be folding utility drawing table of the present invention do drawing table use and drawing desktop launch time structure schematic diagram (eliminating Folding desk lamp and folding T-square).
Fig. 2 be folding utility drawing table of the present invention do drawing table use and drawing desktop launch time Facad structure schematic diagram.
Fig. 3 be folding utility drawing table of the present invention do drawing table use and drawing foldable table top time structural representation.
Fig. 4 is that the folding utility drawing table of the present invention case that makes a tour uses and the structural representation of table leg when being all folded and placed under base plate.
Fig. 5 be folding utility drawing table of the present invention make a tour case use and handle rod is in operating position time structural representation.
Fig. 6 is the structural representation of desktop telescoping mechanism in folding utility drawing table of the present invention.
Fig. 7 is the structure full sectional view of table leg one in folding utility drawing table of the present invention.
Fig. 8 is the sectional view along A-A line in Fig. 7.
Fig. 9 is the structural representation of folding T-square in folding utility drawing table of the present invention.
Figure 10 is the structural representation (eliminating the various installing holes on box frame) of box frame in folding utility drawing table of the present invention.
Figure 11 is the structural representation of hanger in folding utility drawing table of the present invention.
Figure 12 is the structural representation of anchor ear sheet in folding utility drawing table of the present invention.
In figure: drawing desktop 1(comprises right panel 1a, Left-Hand Panel 1c and the center panel 1b), six anchor ear sheets 2, desktop telescoping mechanism 3, two latches 4, two folding racks 5, rear board 6, four universal wheels, 7, four hangers, 8, four table leg (table leg one 9a, table leg two 9b, table leg three 9c, table leg four 9d), connecting rod one 10a and connecting rod two 10b, handle rod 11, box frame 12(comprises two cavity 12a, two long beam 12b, left column 12c, right column 12d, tail trimmer one 12e and tail trimmer two 12f), base plate 13, front panel 14(comprises left front panel 14a, right front panel 14b), two magnetic door folder 15(comprise magnetic door intermediate plate 15a and magnetic door holder 15b), handle strip 16(comprises lower handle strip 16a and upper handle strip 16b), parcel tray 17, front panel lock 18(comprises Part I 18a and Part II 18b), spacing horizontal stripe 19, Folding desk lamp 20, folding T-square 21(comprises left-half 21a, right half part 21b, hinge 21c), draw ring 1 and draw ring 2 31, outer steel pipe 1 and outer steel pipe 2 30, interior steel pipe 1 and interior steel pipe 2 29, spring base 1 and spring base 2 28, steel pipe 26 outside center, spring 27, four column type sleeves, 32, four column type key seat 33(include dowel hole one 33a, dowel hole two 33b, dowel hole three 33c), four hollow, rectangular pipe 34(include slot 34a), two spring lock blocks 35, two Compress Springs 36, two spring blocks 37, two alignment pin 38(include alignment pin elbow 38a), four expansion link 39(comprise fixture 39a and movement parts 39b), two spring trays 40.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, folding utility drawing table of the present invention is in drawing table using state, includes drawing desktop 1, front panel 14, rear board 6, base plate 13, box frame 12, table leg one 9a, table leg two 9b, table leg three 9c, table leg four 9d.Wherein, drawing desktop 1 is by right panel 1a, Left-Hand Panel 1c, the center panel 1b forms, the center panel 1b is connected with Left-Hand Panel 1c with right panel 1a respectively by hinge, box frame 12 includes two cavity 12a, two long beam 12b, left column 12c, right column 12d, tail trimmer one 12e and tail trimmer two 12f, drawing desktop 1 is connected with box frame 12 tail trimmer one 12e by hinge, front panel 14 is connected with box frame 12 by hinge, rear board 6 and base plate 13 are all fixed on box frame 12 by bolt or rivet, four table leg 9a, 9b, 9c, 9d is supported on below base plate 13.
The below of described drawing desktop 1 is provided with shown in desktop telescoping mechanism 3(Fig. 6), to realize the expansion of drawing desktop and to fold.Desktop telescoping mechanism 3 is made up of steel pipe 26, spring 27 outside draw ring 1 and draw ring 2 31, outer steel pipe 1 and outer steel pipe 2 30, interior steel pipe 1 and interior steel pipe 2 29, spring base 1 and spring base 2 28, center, and outside outer steel pipe 1, outer steel pipe 2 30, center, steel pipe 26 is all individually fixed in right panel 1a, the Left-Hand Panel 1c of desktop 1 and the lower surface of the center panel 1b by two anchor ear sheets 2; Interior steel pipe 1 one end is fixed with draw ring 1, and the other end is fixed with spring base 1 by the mode such as tight fit or bonding, and the outer surface of interior steel pipe 1 passes from the endoporus of outer steel pipe 1; Interior steel pipe 2 29 one end is fixed with draw ring 2 31, and the other end is fixed with spring base 2 28 by the mode such as tight fit or bonding, and the outer surface of interior steel pipe 2 29 passes from the endoporus of outer steel pipe 2 30; The main part of spring 27 is installed in the tube chamber of steel pipe 26 outside center, and the two ends of spring 27 are separately fixed at the end face center of spring base 1 and spring base 2 28;
When drawing desktop 1 launches, outer steel pipe 1 and outer steel pipe 2 30 are located along the same line with steel pipe 26 outside center, spring 27 place extended state, the pulling force that spring 27 produces makes draw ring 1 be close to that one end of draw ring 1 close on outer steel pipe 1 to contact, the pulling force that simultaneously spring 27 produces also makes draw ring 2 31 be close to that one end of draw ring 2 31 close on outer steel pipe 2 30 to contact, interior steel pipe 1 is supported on the lower surface of right panel 1a and the center panel 1b intersection, interior steel pipe 2 29 is supported on the lower surface of Left-Hand Panel 1c and the center panel 1b intersection, thus to right panel 1a, the center panel 1b, the overall desktop that Left-Hand Panel 1c is formed plays a supportive role, the drawing desktop launched during to keep drawing is smooth.Now, the overall length and width of drawing desktop 1 are of a size of 1000mm × 642mm, can be used for drafting drawing;
When drawing desktop 1 folds, draw ring 1 is pulled to move to the direction away from outer steel pipe 23, the total length of interior steel pipe 1 is made all to be positioned at the lower surface of right panel 1a, also pull draw ring 2 31 to move to the direction away from outer steel pipe 30 simultaneously, the total length of interior steel pipe 2 29 is made all to be positioned at the lower surface of Left-Hand Panel 1c, then perpendicular to the center panel 1b after making Left-Hand Panel 1c and right panel 1a all inwardly rotate 90 ° by hinge folding, now outside center steel pipe 26 respectively with outer steel pipe 1 and outer steel pipe 2 30 also vertical locus in 90 °, so far drawing foldable table top completes, drawing desktop 1 after folding and the front panel 14 be fixed on box frame 12, rear board 6, base plate 13 forms a closed box (shown in Fig. 3).The lower surface of right panel 1a and Left-Hand Panel 1c is also fixed with latch 4, after drawing desktop 1 is folding, latch 4 to be inserted vertically downward on box frame 12 in corresponding pin hole, can right panel 1a, Left-Hand Panel 1c are securely connected as a whole with box frame 12.When drawing desktop 1 folds, only the center panel 1b can be used for drawing, and the center panel 1b is of a size of 642mm × 490mm, can be used for drafting No. two drawings.
Be provided with folding rack 5 between drawing desktop 1 and box frame 12, folding rack 5 one end is bolted to box frame 12 cavity 12a, and the other end is bolted to the lower surface of drawing desktop 1 the center panel 1b.Folding rack 5 is one four-bar linkage-slider-rocker mechanism, can regulate drawing desktop 1 inclination angle, to meet different drawing needs within the scope of 0 °-68 °.When drawing desktop 1 inclination angle be 0 ° namely horizontal level time, folding rack 5 shrinks and is just all stacked and placed in box frame 12 cavity 12a.Drawing desktop 1 is also placed with matching used folding T-square 21.This folding T-square 21 structure is shown in Fig. 9, and it comprises isometric left-half 21a and connects into one by hinge 21c between right half part 21b, left-half 21a and right half part 21b can the overall T-square of folded in half.When tilting to prevent drawing desktop 1, folding T-square 21 is from drawing desktop 1 landing to ground, is fixed with spacing horizontal stripe 19 at the upper surface of drawing desktop 1 the center panel 1b near that one end of front panel 14.Conveniently draw when dim light, drawing desktop 1 is also provided with chargeable Folding desk lamp 20, utilize the clip of this Folding desk lamp themselves bottom to be fixed in drawing desktop 1 edge, its installation site can need to change flexibly according to illumination.
Described front panel 14 is divided into two, be made up of left front panel 14a and right front panel 14b, left front panel 14a, right front panel 14b are connected with box frame 12 left column 12c, right column 12d respectively by hinge, right front panel 14b inner surface is also fixed with the parcel tray 17 can placing drawing instrument, right front panel 14b upper end is also provided with front panel lock 18, and this front panel lock 18 comprises the Part I 18a(be positioned on right front panel 14b inner surface and sees Fig. 2) and the Part II 18b(be positioned on right front panel 14b outer surface see Fig. 3).When folding utility drawing table is used as drawing table, left front panel 14a and right front panel 14b can open wide and not close, closedown of also can closing.When left front panel 14a and right front panel 14b close close time, the magnetic door holder 15b being positioned at box frame 12 tail trimmer one 12e and the center-right position of tail trimmer two 12f respectively with the magnetic door intermediate plate 15a adhesive being positioned at relevant position on right front panel 14b inner surface, utilize adhesive magnetive attraction to make front panel 14 close more fastening.
Folding utility drawing table of the present invention also includes the handle strip 16 be made up of upper handle strip 16b and lower handle strip 16a, the tail trimmer one 12e middle position of box frame 12 is fixed in upper handle strip 16b one end, and the other end is free end and the unsettled outer top being placed in left front panel 14a and right front panel 14b intersection; Lower handle strip 16a one end is fixed on the base plate 13 immediately below box frame 12 tail trimmer two 12f centre position, and the other end is the free end with eye-splice tooth; The eye-splice mark of mouth groove that upper handle strip 16b free end has and the eye-splice tooth of lower handle strip 16a free end is suitable.
Four hangers 8 are separately fixed at four, base plate 13 bottom edge by screw, and four hangers 8 that four table legs 9a, 9b, 9c, 9d are stretched out with base plate 13 bottom respectively by screw are connected.The structure of table leg one 9a as shown in Figure 7, Figure 8, includes expansion link 39 and rotary positioning mechanism, and expansion link 39 is made up of fixture 39a and movement parts 39b, utilizes the movement travel adjustable table leg length of expansion link, described rotary positioning mechanism can realize table leg one 9a and rotate relative to hanger 8 and base plate 13, table leg one 9a is made to be positioned at three different locus, meet the Structural Transformation requirement between drawing table and suitcase, rotary positioning mechanism comprises branch sleeve 32, column type key seat 33, hollow, rectangular pipe 34, spring lock block 35, Compress Spring 36, spring block 37, alignment pin 38, spring tray 40, between the interior cylindrical hole of column type sleeve 32 and the external cylindrical surface of column type key seat 33, passing hole axle coordinates formation to relatively rotate pair, the hanger 8 that the both ends of the surface of column type key seat 33 are stretched out by screw and base plate 13 bottom is connected and fixes, hollow, rectangular pipe 34 is welded on the external cylindrical surface of column type sleeve 32, hollow, rectangular pipe 34 inside is by being welded with spring block 37, expansion link 39 fixture 39a, by being welded with spring tray 40 on expansion link 39 fixture 39a, expansion link 39 movement parts 39b is arranged in the groove of expansion link 39 fixture 39a and also can does reciprocating linear motion by relative telescopic bar 39 fixture 39a, alignment pin 38 is bearing on the clear opening of spring block 37 and spring tray 40 in axially displaceable mode, spring lock block 35 is fixed on the position of alignment pin 38 near left end, Compress Spring 36 between spring lock block 35 and spring block 37 is sleeved on the outside of alignment pin 38 and coaxial with alignment pin 38, the alignment pin elbow 38a of alignment pin 38 right-hand member stretches out from the slot 34a of hollow rectangular tube 34, moving axially alignment pin elbow 38a can drive alignment pin 38 left end to enter or exit column type key seat 33 dowel hole one 33a.
The structure of table leg three 9c and table leg one 9a, composition and function are identical; Table leg two 9b is except lacking spring lock block 35, Compress Spring 36, spring block 37, alignment pin 38, spring tray 40, and all the other structures, composition are all with table leg one 9a; The structure of table leg four 9d and table leg two 9b, composition and function are identical; Be bolted between the expansion link movement parts of stretching out bottom the expansion link movement parts 39b stretched out bottom table leg one 9a and table leg four 9d and be fixed with connecting rod two 10b, between bottom table leg one 9a and bottom table leg four 9d, be also fixed with handle rod 11; Be bolted between the expansion link movement parts of stretching out bottom the expansion link movement parts of stretching out bottom table leg two 9b and table leg three 9c and be fixed with connecting rod one 10a.Change adjustable in length drawing desktop 1 height of four table legs 9a, 9b, 9c, 9d.When regulating the length of table leg one 9a and table leg four 9d, the connecting rod two 10b middle part of holding between table leg one 9a and table leg four 9d pulls down or to pull-up, make the inner expansion link of table leg one 9a consistent with the movement travel of the inner expansion link of table leg four 9d, realize the adjusted in concert of table leg one 9a and table leg four 9d length; Non-middle part such as left end or right-hand member position as held connecting rod two 10b pull down or to pull-up, then the movement travel of the inner expansion link of table leg one 9a and the inner expansion link of table leg four 9d is inconsistent, realizes the asynchronous adjustment of table leg one 9a and table leg four 9d length; The length adjustment process of table leg two 9b and table leg three 9c is similar with the length adjustment process of table leg one 9a and table leg four 9d.By coordinating the length adjustment of four table legs, drawing desktop 1 height of table top when horizontal positioned finally can be made within the scope of 765mm-935mm to change adjustment.
When folding utility drawing table of the present invention converts between drawing table and suitcase two kinds of different conditions, table leg one 9a and table leg four 9d adds up to three kinds of different locus, table leg two 9b and table leg three 9c add up to two kinds of different locus, leg room change in location realizes mainly through the rotary positioning mechanism of table leg one 9a and table leg three 9c, that is: utilize the hollow, rectangular pipe 34 of table leg one 9a and column type sleeve 32 to rotate relative to column type key seat 33, table leg one 9a is made to have three kinds of different spatial relative to base plate 13 and hanger 8, the hollow, rectangular pipe 34 of table leg three 9c and column type sleeve 32 is utilized to rotate relative to column type key seat 33, table leg three 9c is made to have two kinds of different spatial relative to base plate 13 and hanger 8.The spatial position change of table leg four 9d is by table leg one 9a by caused by connecting rod two 10b drive, and the spatial position change of table leg two 9b is by caused by connecting rod one 10a drive by table leg three 9c.Specifically: when folding utility drawing table is used as drawing table, four table legs are all positioned at base plate 13 bottom and play a supportive role (as shown in Figure 1, Figure 2, Figure 3 shows), now the alignment pin 38 of table leg one 9a inserts and is positioned cylindrical key seat 33 dowel hole one 33a, and in table leg three 9c, in alignment pin position and table leg one 9a, alignment pin position is similar; When folding utility drawing table is used as suitcase, there are two kinds of possibility situations, the first situation is that four table legs all fold and are placed on base plate 13 times (as shown in Figure 4), now the alignment pin 38 of table leg one 9a inserts and is positioned cylindrical key seat 33 dowel hole two 33b, and in table leg three 9c, alignment pin position is still similar with alignment pin position in table leg one 9a; In the first situation, four universal wheels 7 that rear board 6 four edges are fixed are placed on ground, and can make casing entirety sliding on the ground, be easy to carry resettlement.The second situation is that table leg two is placed on base plate 13 times with table leg three is folding, and table leg one 9a and table leg four 9d to stretch out in outside base plate 13 and is basically parallel to base plate 13(as shown in Figure 5), now the alignment pin 38 of table leg one 9a inserts and is positioned cylindrical key seat 33 dowel hole three 33c, and in table leg three 9c, alignment pin position remains unchanged and is still same as the first situation.In the second situation, the handle rod 11 between table leg one 9a and table leg four 9d is in operating position, drags suitcase motion by handle rod 11.
Under folding utility drawing table of the present invention works in suitcase state; the front panel lock 18 that right front panel 14b installs can store away the object locks such as the article placed in casing such as folding T-square, Folding desk lamp, drawing instrument, clothing, plays anti-theft protection effect.Simultaneously, lower handle strip 16a free end and upper handle strip 16b free end connect by eye-splice, namely be connected as one by eye-splice tooth and eye-splice mark of mouth slot fit, form an overall handle strip 16, to facilitate getting on or off the bus, the occasion such as stair activity promotes and moves casing.
Above-mentioned detailed description of the invention is used for explaining and the present invention is described; instead of limit the invention; under the premise without departing from the spirit and scope of the present invention, the present invention also can have various changes and modifications, and these changes and improvements all drop within protection scope of the present invention.

Claims (7)

1. a folding utility drawing table, include drawing desktop (1), front panel (14), rear board (6), base plate (13), box frame (12), four table leg (9a, 9b, 9c, 9d), drawing desktop (1) is by right panel (1a), Left-Hand Panel (1c), the center panel (1b) forms and the center panel (1b) is connected with Left-Hand Panel (1c) with right panel (1a) respectively by hinge, box frame (12) includes two cavitys (12a), two long beams (12b), left column (12c), right column (12d), tail trimmer one (12e) and tail trimmer two (12f), drawing desktop (1) is all connected with box frame (12) by hinge with front panel (14), rear board (6) and base plate (13) are all fixed on box frame (12) by bolt or rivet, four table leg (9a, 9b, 9c, four hangers (8) of 9d) being stretched out with base plate (13) bottom respectively by screw are connected, it is characterized in that:
1) below of described drawing desktop (1) is provided with desktop telescoping mechanism (3), and desktop telescoping mechanism (3) is made up of steel pipe (26), spring (27) outside draw ring one (22) and draw ring two (31), outer steel pipe one (23) and outer steel pipe two (30), interior steel pipe one (24) and interior steel pipe two (29), spring base one (25) and spring base two (28), center; Outside outer steel pipe one (23), outer steel pipe two (30), center, steel pipe (26) is all individually fixed in the lower surface of the right panel (1a) of desktop (1), Left-Hand Panel (1c) and the center panel (1b) by two anchor ear sheets (2); Interior steel pipe one (24) one end is fixed with draw ring one (22), and the other end is fixed with spring base one (25); The outer surface of interior steel pipe one (24) passes from the endoporus of outer steel pipe one (23); Interior steel pipe two (29) one end is fixed with draw ring two (31), and the other end is fixed with spring base two (28); The outer surface of interior steel pipe two (29) passes from the endoporus of outer steel pipe two (30); The main part of spring (27) is installed in the tube chamber of steel pipe outside center (26), and spring (27) two ends are separately fixed at the end face center of spring base one (25) and spring base two (28); When drawing desktop (1) launches, outside outer steel pipe one (23), outer steel pipe two (30), center, steel pipe (26) is located along the same line;
2) described table leg one (9a) is made up of expansion link (39) and rotary positioning mechanism, described expansion link (39) comprises fixture (39a) and movement parts (39b), described rotary positioning mechanism comprises branch sleeve (32), column type key seat (33), hollow, rectangular pipe (34), spring lock block (35), Compress Spring (36), spring block (37), alignment pin (38), spring tray (40), between the interior cylindrical hole of column type sleeve (32) and the external cylindrical surface of column type key seat (33), passing hole axle coordinates formation to relatively rotate pair, the both ends of the surface of column type key seat (33) are connected with the hanger (8) being fixed on base plate (13) lower surface by screw, hollow, rectangular pipe (34) is welded on the external cylindrical surface of column type sleeve (32), hollow, rectangular pipe (34) is inner by being welded with spring block (37), expansion link (39) fixture (39a), by being welded with spring tray (40) on expansion link (39) fixture (39a), expansion link (39) movement parts (39b) is arranged in the groove of expansion link (39) fixture (39a) and also can does reciprocating linear motion by relative telescopic bar (39) fixture (39a), alignment pin (38) is bearing on the clear opening of spring block (37) and spring tray (40) in axially displaceable mode, spring lock block (35) is fixed on the position of alignment pin (38) near left end, the Compress Spring (36) be positioned between spring lock block (35) and spring block (37) is sleeved on the outside of alignment pin (38) and coaxial with alignment pin (38), the alignment pin elbow (38a) of alignment pin (38) right-hand member stretches out from the slot (34a) of hollow rectangular tube (34), moving axially alignment pin elbow (38a) can drive the left end of alignment pin (38) to enter or exit column type key seat (33) dowel hole one (33a), the structure of described table leg three (9c) and table leg one (9a), composition and function are identical, described table leg two (9b) is except lacking spring lock block (35), Compress Spring (36), spring block (37), alignment pin (38), spring tray (40), and all the other structures, composition are all with table leg one (9a), the structure of described table leg four (9d) and table leg two (9b), composition and function are identical, be bolted between the expansion link movement parts (39b) that table leg one (9a) bottom is stretched out and the expansion link movement parts that table leg four (9d) bottom is stretched out and be fixed with connecting rod two (10b), between table leg one (9a) bottom and table leg four (9d) bottom, be also fixed with handle rod (11), be bolted between the expansion link movement parts that table leg two (9b) bottom is stretched out and the expansion link movement parts that table leg three (9c) bottom is stretched out and be fixed with connecting rod one (10a),
3) described folding utility drawing table also includes four universal wheels (7), is individually fixed in four edges of rear board (6) with screw.
2. folding utility drawing table according to claim 1, it is characterized in that: described front panel (14) is divided into two, be made up of left front panel (14a) and right front panel (14b), left front panel (14a), right front panel (14b) by hinge respectively with box frame (12) left column (12c), right column (12d) connects, right front panel (14b) inner surface is also fixed with parcel tray (17), right front panel (14b) upper end is also provided with front panel lock (18), this front panel lock (18) comprises the Part I (18a) be positioned on right front panel (14b) inner surface and the Part II (18b) be positioned on right front panel (14b) outer surface.
3. folding utility drawing table according to claim 1, it is characterized in that: also include the handle strip (16) be made up of upper handle strip (16b) and lower handle strip (16a), tail trimmer one (12e) middle position of box frame (12) is fixed in upper handle strip (16b) one end, and the other end is free end and the unsettled outer top being placed in left front panel (14a) and right front panel (14b) intersection; Lower handle strip (16a) one end is fixed on the base plate (13) immediately below box frame (12) tail trimmer two (12f) centre position, and the other end is the free end with eye-splice tooth; The eye-splice mark of mouth groove that upper handle strip (16b) free end has and the eye-splice tooth of lower handle strip (16a) free end is suitable.
4. folding utility drawing table according to claim 1, it is characterized in that: also include and the matching used folding T-square of described drawing desktop (1) (21), this T-square comprises isometric left-half (21a) and right half part (21b), and connecting into one by hinge (21c) between left-half (21a) and right half part (21b) can the overall T-square of folded in half.
5. folding utility drawing table according to claim 1, is characterized in that: the upper surface of described drawing desktop (1) the center panel (1b) is fixed with spacing horizontal stripe (19) in that one end near front panel (14).
6. folding utility drawing table according to claim 1, is characterized in that: also include Folding desk lamp (20), utilizes the clip bottom himself to be fixed in drawing desktop (1) edge.
7. folding utility drawing table according to claim 1, it is characterized in that: after drawing desktop (1) trails, be of a size of 642mm × 1000mm, during drawing desktop (1) horizontal positioned, height of table top can adjust change within the scope of 765mm-935mm, and drawing desktop (1) inclination angle can regulate within the scope of 0 °-68 °.
CN201410397748.XA 2014-08-14 2014-08-14 A kind of folding utility drawing table Expired - Fee Related CN104172736B (en)

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CN107647606A (en) * 2017-10-25 2018-02-02 山东理工职业学院 A kind of Art Design drawing multifunctional workstation
CN108973510A (en) * 2018-07-24 2018-12-11 合肥爱玩动漫有限公司 A kind of cartoon design drawing board
CN109674216B (en) * 2019-01-10 2021-03-19 红河学院 Drawing exhibition is put table for environmental design
CN109770592B (en) * 2019-02-28 2021-11-12 杭州凯艺家居有限公司 Foldable deformation wooden deck chair
CN114287735A (en) * 2022-01-25 2022-04-08 吴启坤 Accounting teaching is with multi-functional podium that has little blackboard

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US7451709B2 (en) * 2004-09-27 2008-11-18 Brian Allen Swartfager Portable cooler and table
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