CN207257227U - A kind of portable palette - Google Patents

A kind of portable palette Download PDF

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Publication number
CN207257227U
CN207257227U CN201721250468.1U CN201721250468U CN207257227U CN 207257227 U CN207257227 U CN 207257227U CN 201721250468 U CN201721250468 U CN 201721250468U CN 207257227 U CN207257227 U CN 207257227U
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CN
China
Prior art keywords
bar
slide bar
fixedly connected
end cover
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721250468.1U
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Chinese (zh)
Inventor
赵宇
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201721250468.1U priority Critical patent/CN207257227U/en
Application granted granted Critical
Publication of CN207257227U publication Critical patent/CN207257227U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of draw tool is the utility model is related to, is in particular a kind of portable palette.The utility model is a kind of portable palette, including foreboard, back plate, middle plate, elastic bar, cradling piece, angle rod and caging bolt;The middle plate includes upper clamp plate, lower clamp plate and middle panel, and threaded hole I and threaded hole II are provided with middle plate;The elastic bar includes preceding plate stem and rear plate stem, and preceding plate stem includes short slide bar I, connecting rod I, long slide bar I and fixed link I, sliding slot is both provided with short slide bar I, connecting rod I, long slide bar I and fixed link I;The beneficial effects of the utility model for can make drawing board fold diminish, paint outdoor scene when can be easy to carry, usable floor area adjusting, is adjusted using angle and according to service condition, quite convenient for field paint.

Description

A kind of portable palette
Technical field
A kind of draw tool is the utility model is related to, is in particular a kind of portable palette.
Background technology
Draw tool is the creation being chiefly used in convenient drawing.A kind of drawing work of Patent No. CN201620953102.X Tool, the utility model discloses a kind of Drawing board for children of adjustable drawing board angle, including drawing board frame, two drawing boards and glove Frame, the drawing board frame include first support and second support, and first support and second support upper end are flexibly connected, this first Frame and second support are equipped with a straight slot;The both sides of the drawing board are at least installed with two nuts respectively, and nut, which coordinates, is equipped with screw rod, The screw rod may pass through the straight slot;The back side of two drawing boards is equipped with folding supporting rod, supporting rod include first support bar and The second support bar being sheathed in first support bar, first support bar outer wall are equipped with external screw thread, on the inner wall of second support bar Equipped with the matched internal thread of first support bar.The present apparatus is simple in structure, easy to use, it is only necessary to which adjusting screw rod and supporting rod are just The angle of two drawing boards can be changed respectively, the family for being more suitable for two children uses.But this instrument is not moved easily Use, and usable floor area is limited, can not carry out the creation of significantly paintings.
Utility model content
The purpose of this utility model is to provide a kind of portable palette, and its advantage diminishes for that can fold drawing board, Can be easy to carry during drawing outdoor scene, usable floor area adjusting, is adjusted, very just using angle and according to service condition Paint in field.
The purpose of this utility model is achieved through the following technical solutions:
The purpose of this utility model is to provide a kind of portable palette, including foreboard, back plate, middle plate, elastic bar, branch Hack lever, angle rod and caging bolt, the middle plate include upper clamp plate, lower clamp plate and middle panel, and middle plate is provided with I He of threaded hole Threaded hole II;The elastic bar includes preceding plate stem and rear plate stem, and preceding plate stem includes short slide bar I, connecting rod I, long slide bar I With fixed link I, be both provided with sliding slot in short slide bar I, connecting rod I, long slide bar I and fixed link I, rear plate stem include short slide bar II, Connecting rod II, long slide bar II and fixed link II, are both provided with cunning in short slide bar II, connecting rod II, long slide bar II and fixed link II Groove, short slide bar I are bolted connecting rod I, and short slide bar I is fixedly connected with foreboard, and connecting rod I is slidably connected long slide bar I, long to slide Fixed link I is bolted in bar I, and fixed link I is fixedly connected with fixed link II, and fixed link I is fixedly connected with upper clamp plate, fixed link I Lower clamp plate is fixedly connected with, connecting rod II is bolted in short slide bar II, and short slide bar II is fixedly connected with back plate, and connecting rod II is slided Long slide bar II is connected, fixed link II is bolted in long slide bar II;The cradling piece includes supporting rod I and supporting rod II, Supporting rod I includes bar I, bar II, bar III, universal joint and cushion block I, is both provided with sliding slot on bar I, bar II and bar III, bar I passes through It is bolted middle plate, bar I is bolted bar II, and bar II is bolted bar III, and bar III is fixedly connected with universal joint, and ten thousand Cushion block I is fixedly connected with to connector, supporting rod II is identical with supporting rod I;The angle rod includes shaft, little axle sleeve I, little axle sleeve IIth, axis, axle sleeve bar I, axle sleeve bar II and cushion block II, little axle sleeve I and little axle sleeve II are both provided with threaded hole and jackscrew, and axis includes axis Body and sole piece, axle sleeve bar I include large shaft sleeve I, upper end cover I, bottom end cover I and jackscrew I, threaded hole III are provided with large shaft sleeve I, on It is provided with circular hole I on end cap I, axle sleeve bar II includes large shaft sleeve II, upper end cover II, bottom end cover II and jackscrew II, on large shaft sleeve II Threaded hole IV is provided with, circular hole II is provided with upper end cover II, shaft is arranged in little axle sleeve I and little axle sleeve II, and shaft is fixed Axis body is connected, little axle sleeve I is fixedly connected on middle plate, and little axle sleeve II is fixedly connected on middle plate, and axis body is fixedly connected with sole piece, axis Body passes through circular hole I, and sole piece is arranged in large shaft sleeve I, and upper end cover I is fixedly connected with large shaft sleeve I, and bottom end cover I is fixedly connected with large shaft sleeve I, bottom end cover I is arranged in large shaft sleeve II, and large shaft sleeve II passes through circular hole II, and jackscrew I is arranged in threaded hole III, and upper end cover II is solid Surely large shaft sleeve II is connected, bottom end cover II is fixedly connected with large shaft sleeve II, and jackscrew II is arranged in threaded hole IV, and bottom end cover II, which is fixed, to be connected Connection pad block II;The caging bolt is provided with two, and two caging bolts are connected with threaded hole I and threaded hole II respectively.
Further optimize as the utility model, the diameter of circular hole I described in the utility model is less than the straight of sole piece Footpath, the diameter of circular hole II are less than the diameter of bottom end cover I.
Further optimize as the utility model, II material of cushion block I and cushion block described in the utility model is rubber Glue, cushion block I and II surface of cushion block are provided with skid resistance strip.
Further optimize as the utility model, the universal joint model described in the utility model is selected E16X32-G。
Using technical solution provided by the utility model, compared with prior art, have the advantages that:
(1) a kind of portable palette of the utility model, by bolt adjusting elasticity on cradling piece, folds supporting rod Use, fixed supporting rod by caging bolt, can effectively save space, supporting rod is opened in use, universal joint can To aid in drawing board to adjust the angle well.
(2) the elastic bar of the utility model can all around be adjusted front and rear panels, can will during use Plate is used together during front and rear panels combine, and creation panel becomes larger, inapplicable to be combined into three plates together, saves space.
(3) angle rod of the utility model can be extended and shortened, and also adjust angle when angle rod uses, and use top Silk is fixed, realizes the adjustment using angle.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model expansion;
Fig. 2 is the overall structure diagram of the utility model recycling;
Fig. 3 is the structure diagram of the elastic bar of the utility model;
Fig. 4 is the structure diagram of the preceding plate stem of the utility model;
Fig. 5 is the structure diagram of the rear plate stem of the utility model;
Fig. 6 is the structure diagram of the supporting rod of the utility model;
Fig. 7 is the structure diagram of the angle rod of the utility model;
Fig. 8 is the structure diagram of the axis of the utility model;
Fig. 9 is the structure diagram of the axle sleeve bar I of the utility model;
Figure 10 is the structure diagram of the axle sleeve bar II of the utility model;
Figure 11 is the structure diagram of the middle plate of the utility model.
In figure:Foreboard 1;Back plate 2;Middle plate 3;Upper clamp plate 3-1;Lower clamp plate 3-2;Middle panel 3-3;Elastic bar 4;Foreboard Bar 4-1;Short I 4-1-1 of slide bar;I 4-1-2 of connecting rod;Long I 4-1-3 of slide bar;I 4-1-4 of fixed link;Plate stem 4-2 afterwards;Short slide bar II 4-2-1;II 4-2-2 of connecting rod;Long II 4-2-3 of slide bar;II 4-2-4 of fixed link;Cradling piece 5;I 5-1 of supporting rod;I 5-1-1 of bar; II 5-1-2 of bar;III 5-1-3 of bar;Universal joint 5-1-4;I 5-1-5 of cushion block;II 5-2 of supporting rod;Angle rod 6;Shaft 6-1;Small axis Cover I 6-2;II 6-3 of little axle sleeve;Axis 6-4;Axis body 6-4-1;Sole piece 6-4-2;I 6-5 of axle sleeve bar;I 6-5-1 of large shaft sleeve;Upper end cover I 6-5-2;I 6-5-3 of bottom end cover;I 6-5-4 of jackscrew;II 6-6 of axle sleeve bar;II 6-6-1 of large shaft sleeve;II 6-6-2 of upper end cover;Bottom end cover Ⅱ6-6-3;II 6-6-4 of jackscrew;II 6-7 of cushion block;Caging bolt 7.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment one:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, a kind of portable palette, including it is preceding Plate 1, back plate 2, middle plate 3, elastic bar 4, cradling piece 5, angle rod 6 and caging bolt 7;The middle plate 3 includes upper clamp plate 3-1, lower clamp plate 3-2 and middle panel 3-3, middle plate 3 are provided with threaded hole I and threaded hole II;Before the elastic bar 4 includes Plate stem 4-1 and rear plate stem 4-2, preceding plate stem 4-1 include short I 4-1-1 of slide bar, I 4-1-2 of connecting rod, I 4-1-3 of long slide bar and fixation Sliding slot is both provided with bar I 4-1-4, short I 4-1-1 of slide bar, I 4-1-4 of I 4-1-2 of connecting rod, I 4-1-3 of long slide bar and fixed link, Plate stem 4-2 includes short II 4-2-1 of slide bar, II 4-2-4 of II 4-2-2 of connecting rod, II 4-2-3 of long slide bar and fixed link, short slide bar afterwards Sliding slot, short I 4-1-1 of slide bar are both provided with II 4-2-1, II 4-2-4 of II 4-2-2 of connecting rod, II 4-2-3 of long slide bar and fixed link It is bolted connecting rod I 4-1-2, short I 4-1-1 of slide bar is fixedly connected with foreboard 1, and I 4-1-2 of connecting rod is slidably connected long slide bar I 4-1-4 of fixed link is bolted in I 4-1-3, long I 4-1-3 of slide bar, and I 4-1-4 of fixed link is fixedly connected with fixed link II
4-2-4, I 4-1-4 of fixed link are fixedly connected with upper clamp plate 3-1, and I 4-1-4 of fixed link is fixedly connected with lower clamp plate 3-2, short II 4-2-1 of slide bar is bolted connecting rod II 4-2-2, short II 4-2-1 of slide bar and is fixedly connected with back plate 2, II 4-2-2 of connecting rod Be slidably connected long II 4-2-3 of slide bar, and II 4-2-4 of fixed link is bolted in long II 4-2-3 of slide bar;The cradling piece 5 wraps Including I 5-1 of supporting rod and supporting rod II 5-2, I 5-1 of supporting rod includes I 5-1-1 of bar, II 5-1-2 of bar, III 5-1-3 of bar, universal joint Sliding slot is both provided with III 5-1-3 of 5-1-4 and cushion block I 5-1-5, I 5-1-1 of bar, II 5-1-2 of bar and bar, I 5-1-1 of bar passes through spiral shell II 5-1-2 of bar is bolted in bolt connecting middle plate 3, I 5-1-1 of bar, and III 5-1-3 of bar, bar is bolted in II 5-1-2 of bar III 5-1-3 is fixedly connected with universal joint 5-1-4, and universal joint 5-1-4 is fixedly connected with I 5-1-5 of cushion block, II 5-2 of supporting rod and branch I 5-1 of strut is identical;The angle rod 6 includes shaft 6-1, I 6-2 of little axle sleeve, II 6-3 of little axle sleeve, axis 6-4, I 6- of axle sleeve bar 5th, II 6-7 of II 6-6 of axle sleeve bar and cushion block, I 6-2 of little axle sleeve and II 6-3 of little axle sleeve are both provided with threaded hole and jackscrew, axis 6-4 bags Include axis body 6-4-1 and sole piece 6-4-2, I 6-5 of axle sleeve bar include I 6-5-1 of large shaft sleeve, I 6-5-2 of upper end cover, I 6-5-3 of bottom end cover and Jackscrew I
Threaded hole III is provided with 6-5-4, I 6-5-1 of large shaft sleeve, circular hole I, axle sleeve bar II are provided with I 6-5-2 of upper end cover 6-6 includes II 6-6-1 of large shaft sleeve, II 6-6-2 of upper end cover, II 6-6-3 of bottom end cover and jackscrew II 6-6-4, II 6-6-1 of large shaft sleeve On be provided with threaded hole IV, circular hole II is provided with II 6-6-2 of upper end cover, shaft 6-1 is arranged on I 6-2 of little axle sleeve and little axle sleeve In II 6-3, shaft 6-1 is fixedly connected with axis body 6-4-1, and I 6-2 of little axle sleeve is fixedly connected on middle plate 3, and II 6-3 of little axle sleeve is fixed It is connected on plate 3, axis body 6-4-1 is fixedly connected with sole piece 6-4-2, and axis body 6-4-1 passes through circular hole I, and sole piece 6-4-2 is arranged on In I 6-5-1 of large shaft sleeve, I 6-5-2 of upper end cover is fixedly connected with I 6-5-1 of large shaft sleeve, and I 6-5-3 of bottom end cover is fixedly connected with large shaft sleeve I 6-5-1, I 6-5-3 of bottom end cover are arranged in II 6-6-1 of large shaft sleeve, and II 6-6-1 of large shaft sleeve passes through circular hole II, and I 6-5-4 of jackscrew is set Put in threaded hole III, II 6-6-2 of upper end cover is fixedly connected with II 6-6-1 of large shaft sleeve, and II 6-6-3 of bottom end cover is fixedly connected with large shaft sleeve II 6-6-1, II 6-6-4 of jackscrew are arranged in threaded hole IV, and II 6-6-3 of bottom end cover is fixedly connected with II 6-7 of cushion block;Described is spacing Bolt 7 is provided with two, and two caging bolts 7 are connected with threaded hole I and threaded hole II respectively, elastic bar 4, cradling piece 5 Adjusting with angle rod 6 can realize folding, easy to carry, can also adjust drawing board area, increase writing space.
Embodiment two:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, present embodiment is to embodiment One is described further, and the diameter of the circular hole I is less than the diameter of sole piece 6-4-2, and the diameter of circular hole II is less than I 6- of bottom end cover The diameter of 5-3, realizes the extension and shortening of angle rod 6.
Embodiment three:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, present embodiment is to embodiment One is described further, and I 5-1-5 of cushion block and II 6-7 materials of cushion block are rubber, II 6-7 of I 5-1-5 of cushion block and cushion block Surface is provided with skid resistance strip, and when outdoor use is easy to fixed, prevents to slide partially.
Embodiment four:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, present embodiment is to embodiment One is described further, and the universal joint 5-1-4 models select E16X32- G.
Utility model works principle is:The Novel drawing board is opened in use, take away caging bolt 7, puts down supporting rod 5, By adjusting bolt, the length of supporting rod 5 is adjusted, using the angle of universal joint 5-1-4 adjustment supporting rods 5, utilizes cushion block I 5-1-5 fixed positions, adjusting bolt fix supporting rod 5, put down angle rod 6, are adjusted using I 6-5-4 of jackscrew and II 6-6-4 of jackscrew 6 length of angle rod, by adjusting the jackscrew on II 6-3 of I 6-2 of little axle sleeve and little axle sleeve, the angle of fixed angle bar 6, passes through pad II 6-7 of block realizes that position is fixed, and is realized and fixed using two supporting rods 5 and angle rod 6, elastic bar 4 is adjusted by bolt, The position all around of foreboard 1 and back plate 2 is adjusted, realizes the size adjustment of creation panel area, and then realizes three panels Fold, reduce occupied space.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, attached drawing Shown in be also the utility model one of embodiment, actual structure is not limited thereto;So if this area Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design The frame mode similar to the technical solution and embodiment, all should belong to the protection range of the utility model.

Claims (4)

1. a kind of portable palette, including foreboard (1), back plate (2), middle plate (3), elastic bar (4), cradling piece (5), angle Bar (6) and caging bolt (7), it is characterised in that:The middle plate (3) includes upper clamp plate (3-1), lower clamp plate (3-2) and middle face Plate (3-3), middle plate (3) are provided with threaded hole I and threaded hole II;
The elastic bar (4) includes preceding plate stem (4-1) and rear plate stem (4-2), and preceding plate stem (4-1) includes short I (4- of slide bar 1-1), connecting rod I (4-1-2), long slide bar I (4-1-3) and fixed link I (4-1-4), short slide bar I (4-1-1), I (4- of connecting rod 1-2), sliding slot is both provided with long slide bar I (4-1-3) and fixed link I (4-1-4), rear plate stem (4-2) includes short II (4- of slide bar 2-1), connecting rod II (4-2-2), long slide bar II (4-2-3) and fixed link II (4-2-4), short slide bar II (4-2-1), connecting rod Sliding slot is both provided with II (4-2-2), long slide bar II (4-2-3) and fixed link II (4-2-4), short slide bar I (4-1-1) passes through spiral shell Tether extension bar I (4-1-2) in succession, short slide bar I (4-1-1) is fixedly connected with foreboard (1), and connecting rod I (4-1-2) is slidably connected long cunning Fixed link I (4-1-4) is bolted in bar I (4-1-3), long slide bar I (4-1-3), and fixed link I (4-1-4) is fixedly connected Fixed pole II (4-2-4), fixed link I (4-1-4) are fixedly connected with upper clamp plate (3-1), and fixed link I (4-1-4) is fixedly connected with lower clamp plate Connecting rod II (4-2-2) is bolted in (3-2), short slide bar II (4-2-1), and short slide bar II (4-2-1) is fixedly connected with back plate (2), connecting rod II (4-2-2) is slidably connected long slide bar II (4-2-3), and fixed link is bolted in long slide bar II (4-2-3) Ⅱ(4-2-4);
The cradling piece (5) includes supporting rod I (5-1) and supporting rod II (5-2), and supporting rod I (5-1) includes I (5-1- of bar 1), bar II (5-1-2), bar III (5-1-3), universal joint (5-1-4) and cushion block I (5-1-5), bar I (5-1-1), II (5-1- of bar 2) and sliding slot is both provided with bar III (5-1-3), middle plate (3) is bolted in bar I (5-1-1), and bar I (5-1-1) passes through spiral shell Extension bar II (5-1-2) is tethered, bar III (5-1-3) is bolted in bar II (5-1-2), and bar III (5-1-3) is fixedly connected universal Connector (5-1-4), universal joint (5-1-4) are fixedly connected with cushion block I (5-1-5), supporting rod II (5-2) and supporting rod I (5-1) phase Together;
The angle rod (6) includes shaft (6-1), little axle sleeve I (6-2), little axle sleeve II (6-3), axis (6-4), axle sleeve bar I (6-5), axle sleeve bar II (6-6) and cushion block II (6-7), little axle sleeve I (6-2) and little axle sleeve II (6-3) be both provided with threaded hole and Jackscrew, axis (6-4) include axis body (6-4-1) and sole piece (6-4-2), and axle sleeve bar I (6-5) includes large shaft sleeve I (6-5-1), upper end Lid I (6-5-2), bottom end cover I (6-5-3) and jackscrew I (6-5-4), are provided with threaded hole III, upper end cover on large shaft sleeve I (6-5-1) Circular hole I is provided with I (6-5-2), axle sleeve bar II (6-6) includes large shaft sleeve II (6-6-1), upper end cover II (6-6-2), bottom end cover II (6-6-3) and jackscrew II (6-6-4), are provided with threaded hole IV on large shaft sleeve II (6-6-1), are set on upper end cover II (6-6-2) Circular hole II is equipped with, shaft (6-1) is arranged in little axle sleeve I (6-2) and little axle sleeve II (6-3), and shaft (6-1) is fixedly connected with axis body (6-4-1), little axle sleeve I (6-2) are fixedly connected on middle plate (3), and little axle sleeve II (6-3) is fixedly connected on middle plate (3), axis body (6-4-1) is fixedly connected with sole piece (6-4-2), and axis body (6-4-1) passes through circular hole I, and sole piece (6-4-2) is arranged on I (6-5- of large shaft sleeve 1) in, upper end cover I (6-5-2) is fixedly connected with large shaft sleeve I (6-5-1), and bottom end cover I (6-5-3) is fixedly connected with I (6-5- of large shaft sleeve 1), bottom end cover I (6-5-3) is arranged in large shaft sleeve II (6-6-1), and large shaft sleeve II (6-6-1) passes through circular hole II, I (6-5- of jackscrew 4) it is arranged in threaded hole III, upper end cover II (6-6-2) is fixedly connected with large shaft sleeve II (6-6-1), and bottom end cover II (6-6-3) is fixed Large shaft sleeve II (6-6-1) is connected, jackscrew II (6-6-4) is arranged in threaded hole IV, and bottom end cover II (6-6-3) is fixedly connected with cushion block Ⅱ(6-7);
The caging bolt (7) is provided with two, and two caging bolts (7) are connected with threaded hole I and threaded hole II respectively.
A kind of 2. portable palette according to claim 1, it is characterised in that:The diameter of the circular hole I is less than sole piece The diameter of (6-4-2), the diameter of circular hole II are less than the diameter of bottom end cover I (6-5-3).
A kind of 3. portable palette according to claim 1, it is characterised in that:The cushion block I (5-1-5) and cushion block II (6-7) material is rubber, and cushion block I (5-1-5) and cushion block II (6-7) surface are provided with skid resistance strip.
A kind of 4. portable palette according to claim 1, it is characterised in that:The universal joint
(5-1-4) model selects E16X32-G.
CN201721250468.1U 2017-09-27 2017-09-27 A kind of portable palette Expired - Fee Related CN207257227U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721250468.1U CN207257227U (en) 2017-09-27 2017-09-27 A kind of portable palette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721250468.1U CN207257227U (en) 2017-09-27 2017-09-27 A kind of portable palette

Publications (1)

Publication Number Publication Date
CN207257227U true CN207257227U (en) 2018-04-20

Family

ID=61919162

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721250468.1U Expired - Fee Related CN207257227U (en) 2017-09-27 2017-09-27 A kind of portable palette

Country Status (1)

Country Link
CN (1) CN207257227U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826439A (en) * 2019-03-14 2019-05-31 河北建工集团有限责任公司 A kind of adjustable reserved opening die for top plate and its application method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826439A (en) * 2019-03-14 2019-05-31 河北建工集团有限责任公司 A kind of adjustable reserved opening die for top plate and its application method

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20180420

Termination date: 20180927