CN109624560B - Multifunctional teaching board for outdoor teaching - Google Patents
Multifunctional teaching board for outdoor teaching Download PDFInfo
- Publication number
- CN109624560B CN109624560B CN201811550662.0A CN201811550662A CN109624560B CN 109624560 B CN109624560 B CN 109624560B CN 201811550662 A CN201811550662 A CN 201811550662A CN 109624560 B CN109624560 B CN 109624560B
- Authority
- CN
- China
- Prior art keywords
- unit
- block
- supporting
- placing table
- slide rail
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K31/00—Writing implement receptacles functioning as, or combined with, writing implements
Abstract
The invention discloses a multifunctional teaching board for outdoor teaching, which comprises first slide rail units distributed in an array manner, wherein the first slide rail units are provided with clamping units in sliding connection, hanging ropes which are symmetrically distributed are arranged on two sides of each clamping unit, hooks which are symmetrically distributed are arranged on the first slide rail units, the upper ends of the first slide rail units are provided with second slide rail units, the first slide rail units are connected with the second slide rail units in a sliding manner, a placing table unit is arranged on one side of each second slide rail unit, and a supporting unit is arranged on each placing table unit; when the blackboard eraser is used, the main body of the blackboard eraser is supported by the supporting unit, the hanging rope on the clamping unit on any one first slide rail unit in the same row is separated from the hook, the lower end clamping block in the clamping unit is contacted with the lower supporting block, the blackboard needing to be operated is placed in the clamping unit, the blackboard needing to be operated is clamped in the clamping unit, and a tool needing to be operated is placed in the accommodating box.
Description
Technical Field
The invention relates to a teaching board, in particular to a multifunctional teaching board for outdoor teaching.
Background
The teaching board that commonly uses is the single-sided board, can only use the blackboard eraser to clean the blackboard eraser after writing full word and carry out the blackboard writing again, some important data and blackboard writing content still need use in teaching in-process later stage after writing in front, if wipe can seriously influence the teaching quality, bring great inconvenience in the teaching process for the teacher, can not satisfy the operation requirement of modernization teaching, for the teaching blackboard of outdoor teaching, for the ease of carrying, the content that single block blackboard recorded is just more limited.
Disclosure of Invention
The invention aims to provide a multifunctional teaching board for outdoor teaching, which is provided with a plurality of blackboards and is convenient to show.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a multi-functional outdoor teaching is with teaching board, its characterized in that, including the first slide rail unit of array distribution, first slide rail unit is equipped with sliding connection's centre gripping unit, and centre gripping unit both sides are equipped with the rope of hanging of symmetric distribution, and first slide rail unit is equipped with the symmetric distribution couple simultaneously, and first slide rail unit upper end is equipped with second slide rail unit, first slide rail unit and second slide rail unit sliding connection.
And a placing table unit is arranged on one side of the second slide rail unit, and a supporting unit is arranged on the placing table unit.
Further, the first slide rail unit comprises an upper support block, a lower support slide rail and a lower support block, the lower end of the upper support block is provided with the lower support slide rails which are symmetrically distributed, the lower support slide rail is provided with a first chute, and the lower end of the lower support slide rail is provided with the lower support block; the hook is positioned on two sides of the upper supporting block.
Furthermore, the clamping unit comprises an upper end clamping block, a lower end clamping block and a tightening unit which are symmetrically distributed, the upper end clamping block and the lower end clamping block are both positioned on the lower support sliding rail, the upper end clamping block and the lower end clamping block both slide along the first sliding groove, and the upper end clamping block and the lower end clamping block are respectively and fixedly connected with the upper end and the lower end of the tightening unit; the hanging ropes are positioned on two sides of the upper end clamping block.
Further, tighten up the unit and include the spacing post in upper end of symmetric distribution, the spacing post of lower extreme of symmetric distribution, first external screw thread post and first spacing circle piece, the spacing post in upper end and the spacing post of lower extreme are inside cavity, the spacing post in upper end and the fastening connection of upper end clamp splice lower extreme, the spacing post of lower extreme and the upper end fastening connection of lower extreme clamp splice, first external screw thread post upper end is located the spacing post in upper end, screw-thread fit is connected between spacing post contact site in first external screw thread post and upper end simultaneously, first external screw thread post lower extreme is located the spacing post of lower extreme, sliding connection between first external screw thread post and the spacing post contact site of lower extreme simultaneously, first external screw thread post lower extreme is equipped with first spacing circle piece.
Further, a knob is arranged on the first external thread column.
And a second limiting round block is arranged at the top end of the first external thread column.
Further, the second slide rail unit comprises two upper end supporting plates and a rotating unit, the first slide rail unit slides along the upper end supporting plates, and the two upper end supporting plates are rotated with each other through the rotating unit.
Furthermore, a plurality of second sliding grooves are formed in the upper end supporting plate, the number of the second sliding grooves corresponds to the number of the first sliding rail units one to one, and the upper supporting block in the first sliding rail unit slides along the second sliding grooves.
Furthermore, the rotating unit comprises rotating supporting blocks, a rotating shaft and rotating blocks which are symmetrically distributed, the rotating supporting blocks are located on two sides of any one upper end supporting plate, the rotating blocks are located at the lower end of the other upper end supporting plate, the rotating blocks are connected with the rotating supporting blocks through the rotating shaft, the rotating shaft is tightly connected with the rotating blocks, and the rotating shaft is rotatably connected with the rotating supporting blocks.
Further, place the platform unit including placing a supporting shoe, placing a support bar, placing a backup pad and accepting the box, wherein place a supporting shoe fixed connection and be located the upper end backup pad one side of below, place a supporting shoe lower extreme and be equipped with the platform support bar of placing of symmetric distribution, place a support bar lower extreme and be equipped with and place a backup pad, place a backup pad upper end and be equipped with accepting the box.
Further, the supporting unit comprises a first supporting frame, a second supporting frame, a first connecting shaft and a limiting strip which are symmetrically distributed, the first supporting frame is located on the outer side of the placing table supporting bar, the second supporting frame which is symmetrically distributed is arranged on the outer side of the first supporting frame, the second supporting frame and the first supporting frame are rotatably connected to the first connecting shaft, and the limiting strip is arranged on the first supporting frame.
The invention has the beneficial effects that:
1. the blackboard is provided with a plurality of blackboards, so that the defect that the recorded content of a single blackboard is limited is avoided, more contents can be recorded, and meanwhile, important contents recorded in the early stage can be reserved;
2. according to the invention, a plurality of blackboards can be displayed simultaneously, so that the teaching is more convenient;
3. the clamping unit can clamp different types of blackboards, and the practicability of the blackboard eraser is enhanced.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a multifunctional teaching board for outdoor teaching according to the present invention;
FIG. 2 is a schematic view of a portion of the present invention;
FIG. 3 is a schematic view of a clamping unit according to the present invention;
FIG. 4 is a schematic view of a clamping unit according to the present invention;
FIG. 5 is an enlarged schematic view of the invention at A;
fig. 6 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
As shown in fig. 1 and 2, a multifunctional teaching board for outdoor teaching comprises first slide rail units 1 distributed in an array manner, wherein the first slide rail units 1 are provided with clamping units 2 connected in a sliding manner, a blackboard needing to be operated is clamped in the clamping units 2, hanging ropes 3 distributed symmetrically are arranged on two sides of each clamping unit 2, and meanwhile, the first slide rail units 1 are provided with hooks 31 distributed symmetrically, and the hanging ropes 3 are hooked on the hooks 31, so that the clamping units 2 are fixed on the first slide rail units 1.
The first slide rail unit 1 comprises an upper support block 11, a lower support slide rail 12 and a lower support block 13, wherein the lower end of the upper support block 11 is provided with the lower support slide rails 12 which are symmetrically distributed, the lower support slide rail 12 is provided with a first chute 121, and the lower end of the lower support slide rail 12 is provided with the lower support block 13; as shown in fig. 5, the hooks 31 are located at both sides of the upper support block 11.
As shown in fig. 3 and 4, the clamping unit 2 includes an upper clamping block 21, a lower clamping block 22 and a tightening unit 23 which are symmetrically distributed, the upper clamping block 21 and the lower clamping block 22 are both located on the lower support slide rail 12, meanwhile, the upper clamping block 21 and the lower clamping block 22 both slide along the first sliding groove 121, the upper clamping block 21 and the lower clamping block 22 are respectively fastened and connected with the upper end and the lower end of the tightening unit 23, as shown in fig. 5, the hanging rope 3 is located on both sides of the upper clamping block 21; the blackboard of the operation is placed between the clamp blocks 21 of the upper end and the clamp blocks 22 of the lower end, realize the interval adjustment between clamp blocks 21 of the upper end and clamp blocks 22 of the lower end through tightening up the unit 23, thus make the blackboard of the operation clamp between clamp blocks 21 of the upper end and clamp blocks 22 of the lower end, because the interval between clamp blocks 21 of the upper end and clamp blocks 22 of the lower end has adjustability similarly, the invention can be according to the actual demand, the clamp unit 2 can clamp the blackboard of different specifications.
The tightening unit 23 comprises upper end limiting columns 231, lower end limiting columns 232, first external thread columns 233 and first limiting round blocks 234 which are symmetrically distributed, the upper end limiting columns 231 and the lower end limiting columns 232 are both internally hollow, the upper end limiting columns 231 are fixedly connected with the lower ends of the upper end clamping blocks 21, the lower end limiting columns 232 are fixedly connected with the upper ends of the lower end clamping blocks 22, the upper ends of the first external thread columns 233 are located in the upper end limiting columns 231, meanwhile, the contact parts of the first external thread columns 233 and the upper end limiting columns 231 are in threaded fit connection, the lower ends of the first external thread columns 233 are located in the lower end limiting columns 232, meanwhile, the contact parts of the first external thread columns 233 and the lower end limiting columns 232 are in sliding connection, and the lower ends of the first external thread columns 233 are provided with the first limiting round blocks; the first external thread column 233 is rotated, the first external thread column 233 drives the upper end limiting column 231 to move up and down, and the limiting column 231 drives the upper end clamping block 21 to move up and down, so that the distance between the upper end clamping block 21 and the lower end clamping block 22 is adjusted.
In order to facilitate the manual rotation of the first externally threaded post 233, a knob 235 is provided on the first externally threaded post 233, and the first externally threaded post 233 is further rotated by the knob 235.
In order to prevent the first externally threaded post 233 from being disengaged from the upper-end stopper post 231, a second stopper 236 is provided at the top end of the first externally threaded post 233.
The upper end of the first slide rail unit 1 is provided with a second slide rail unit 4, and the first slide rail unit 1 is connected with the second slide rail unit 4 in a sliding manner.
The second slide rail unit 4 comprises two upper end supporting plates and a rotating unit, the first slide rail unit 1 slides along the upper end supporting plates, and the two upper end supporting plates are mutually rotated through the rotating unit; when the sliding rail unit is in the initial position, the two upper end supporting plates are placed back to back, the upper end supporting plate above is rotated, one side of the upper end supporting plate above is attached to one side of the upper end supporting plate below, the upper end supporting plate above extends the upper end supporting plate below, the first sliding rail unit 1 continuously slides along the upper end supporting plate, and the plurality of first sliding rail units 1 are displayed side by side.
The rotating unit comprises a rotating shaft, rotating blocks and rotating supporting blocks which are symmetrically distributed, the rotating supporting blocks are located on two sides of any one upper end supporting plate, the rotating blocks are located at the lower end of the other upper end supporting plate, the rotating blocks are connected with the rotating supporting blocks through the rotating shaft, the rotating shaft is fixedly connected with the rotating blocks, and the rotating shaft is rotatably connected with the rotating supporting blocks.
Wherein, be equipped with a plurality of second spouts in the upper end backup pad, second spout quantity and first slide rail unit 1 quantity one-to-one, last supporting block 11 in the first slide rail unit 1 slides along the second spout.
A placing table unit 5 is provided on one side of the second slide rail unit 4, a supporting unit 6 is provided on the placing table unit 5, a tool temporarily required for blackboard work is placed on the placing table unit 5, and the supporting unit 6 supports the placing table unit 5, thereby supporting the main body of the present invention.
The placing table unit 5 comprises a placing table supporting block 51, a placing table supporting bar 52, a placing table supporting plate 53 and an accommodating box 54, wherein the placing table supporting block 51 is fixedly connected to one side of the upper end supporting plate positioned below the placing table supporting block 51, the placing table supporting bar 52 which is symmetrically distributed is arranged at the lower end of the placing table supporting block 51, the placing table supporting plate 53 is arranged at the lower end of the placing table supporting bar 52, and the accommodating box 54 is arranged at the upper end of the placing table supporting plate 53; the storage case 54 stores tools temporarily required for blackboard work.
The supporting unit 6 comprises a first supporting frame 61, a second supporting frame 62, a first connecting shaft 63 and a limiting strip 64 which are symmetrically distributed, the first supporting frame 61 is positioned on the outer side of the placing table supporting bar 52, the second supporting frame 62 which is symmetrically distributed is arranged on the outer side of the first supporting frame 61, the second supporting frame 62 and the first supporting frame 61 are both rotatably connected to the first connecting shaft 63, and the limiting strip 64 is arranged on the first supporting frame 61; the second support frame 62 is rotated to form an included angle between the first support frame 61 and the second support frame 62, and the limiting strip 64 limits the rotation of the second support frame 62, so that the main body of the invention is supported by the second support frame 62 and the first support frame 61.
The using method comprises the following steps: when the blackboard eraser is used, the first support frame 61 and the second support frame 62 in the support unit 6 form an included angle to support the main body, the two upper end support plates are placed in parallel through the rotating unit, the first slide rail units 1 are slid, any two first slide rail units 1 are placed on the same side of the other two first slide rail units 1, the hanging rope 3 on the clamping unit 2 on any one first slide rail unit 1 in the same row is separated from the hook 31, the lower end clamping block 22 in the clamping unit 2 is contacted with the lower support block 13, a blackboard needing to be operated is placed in the clamping unit 2, and the blackboard needing to be operated is clamped in the clamping unit 2 through the tightening unit 23 as shown in fig. 6, and tools needing to be operated are placed in the accommodating box 54.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (9)
1. The multifunctional teaching board for outdoor teaching is characterized by comprising first sliding rail units (1) distributed in an array manner, wherein the first sliding rail units (1) are provided with clamping units (2) in sliding connection, hanging ropes (3) which are symmetrically distributed are arranged on two sides of each clamping unit (2), meanwhile, the first sliding rail units (1) are provided with hooks (31) which are symmetrically distributed, the upper ends of the first sliding rail units (1) are provided with second sliding rail units (4), and the first sliding rail units (1) are connected with the second sliding rail units (4) in a sliding manner;
a placing table unit (5) is arranged on one side of the second sliding rail unit (4), and a supporting unit (6) is arranged on the placing table unit (5);
the first slide rail unit (1) comprises an upper support block (11), a lower support slide rail (12) and a lower support block (13), the lower end of the upper support block (11) is provided with the lower support slide rails (12) which are symmetrically distributed, the lower support slide rail (12) is provided with a first chute (121), and the lower end of the lower support slide rail (12) is provided with the lower support block (13); the hooks (31) are positioned on two sides of the upper supporting block (11).
2. The multifunctional teaching board for outdoor teaching as claimed in claim 1, wherein the clamping unit (2) comprises an upper clamping block (21), a lower clamping block (22) and a tightening unit (23) which are symmetrically distributed, the upper clamping block (21) and the lower clamping block (22) are both located on the lower supporting slide rail (12), meanwhile, the upper clamping block (21) and the lower clamping block (22) both slide along the first sliding groove (121), and the upper clamping block (21) and the lower clamping block (22) are respectively and fixedly connected with the upper end and the lower end of the tightening unit (23); the hanging rope (3) is positioned at two sides of the upper end clamping block (21).
3. The multifunctional teaching board for outdoor teaching of claim 2, wherein the tightening unit (23) comprises upper end limiting columns (231), lower end limiting columns (232), first externally threaded columns (233) and first limiting round blocks (234), which are symmetrically distributed, the upper end limiting columns (231) and the lower end limiting columns (232) are both hollow, the upper end limiting columns (231) are fixedly connected with the lower ends of the upper end clamping blocks (21), the lower end limiting columns (232) are fixedly connected with the upper ends of the lower end clamping blocks (22), the upper ends of the first externally threaded columns (233) are positioned in the upper end limiting columns (231), the first externally threaded columns (233) are in threaded fit connection with the contact parts of the upper end limiting columns (231), the lower ends of the first externally threaded columns (233) are positioned in the lower end limiting columns (232), and the first externally threaded columns (233) are in sliding connection with the contact parts of the lower end limiting columns (232), the lower end of the first external thread column (233) is provided with a first limit round block (234).
4. The multifunctional teaching board for outdoor teaching of claim 3, wherein the first externally threaded column (233) is provided with a knob (235);
and a second limiting round block (236) is arranged at the top end of the first external thread column (233).
5. The multifunctional teaching board for outdoor teaching as claimed in claim 3, wherein the second sliding rail unit (4) comprises two upper supporting boards and a rotating unit, the first sliding rail unit (1) slides along the upper supporting boards, and the two upper supporting boards are rotated with each other by the rotating unit.
6. The multifunctional teaching board for outdoor teaching of claim 5, wherein the upper supporting board is provided with a plurality of second sliding grooves, the number of the second sliding grooves corresponds to the number of the first sliding rail units (1), and the upper supporting blocks (11) in the first sliding rail units (1) slide along the second sliding grooves.
7. The multifunctional teaching board for outdoor teaching of claim 5 wherein the rotation unit comprises a rotation shaft, rotation blocks and rotation support blocks symmetrically distributed, the rotation support blocks are located at two sides of any one upper support plate, the rotation block is located at the lower end of the other upper support plate, the rotation block is connected with the rotation support blocks through the rotation shaft, wherein the rotation shaft is tightly connected with the rotation block, and the rotation shaft is connected with the rotation support blocks in a rotation mode.
8. The multifunctional teaching board for outdoor teaching as claimed in claim 5, wherein the placing table unit (5) comprises a placing table support block (51), a placing table support bar (52), a placing table support plate (53) and a containing box (54), wherein the placing table support block (51) is fixedly connected to one side of the upper end support plate positioned below, the placing table support block (51) is provided with the symmetrically distributed placing table support bars (52) at the lower end, the placing table support bar (52) is provided with the placing table support plate (53) at the lower end, and the containing box (54) is provided at the upper end of the placing table support plate (53).
9. The multifunctional teaching board for outdoor teaching of claim 8, wherein the supporting unit (6) comprises a first supporting frame (61), a second supporting frame (62), a first connecting shaft (63) and a limiting strip (64) which are symmetrically distributed, the first supporting frame (61) is located outside the placing table supporting bar (52), the second supporting frame (62) which is symmetrically distributed is arranged outside the first supporting frame (61), the second supporting frame (62) and the first supporting frame (61) are both rotatably connected to the first connecting shaft (63), and the limiting strip (64) is arranged on the first supporting frame (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550662.0A CN109624560B (en) | 2018-12-18 | 2018-12-18 | Multifunctional teaching board for outdoor teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550662.0A CN109624560B (en) | 2018-12-18 | 2018-12-18 | Multifunctional teaching board for outdoor teaching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109624560A CN109624560A (en) | 2019-04-16 |
| CN109624560B true CN109624560B (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811550662.0A Expired - Fee Related CN109624560B (en) | 2018-12-18 | 2018-12-18 | Multifunctional teaching board for outdoor teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109624560B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5899429A (en) * | 1997-06-18 | 1999-05-04 | Mccloud; Jerry L. | Easel with integral paintbrush cleaning assembly |
| CN202069211U (en) * | 2011-05-31 | 2011-12-14 | 常州立图电子科技有限公司 | Integrated bracket of white board and projector |
| CN202800755U (en) * | 2012-10-24 | 2013-03-20 | 赵岩峰 | Art teaching easel used for outdoor sketching |
| CN205997638U (en) * | 2016-07-30 | 2017-03-08 | 河北鸿音文化传播有限公司 | A kind of artist paints from life and fixes oil painting frame with variable combination type multilamellar |
| CN206568766U (en) * | 2016-09-30 | 2017-10-20 | 昆明理工大学 | A kind of teaching white board |
| CN107660908A (en) * | 2016-07-29 | 2018-02-06 | 高春红 | Multi-functional Portable easel |
-
2018
- 2018-12-18 CN CN201811550662.0A patent/CN109624560B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5899429A (en) * | 1997-06-18 | 1999-05-04 | Mccloud; Jerry L. | Easel with integral paintbrush cleaning assembly |
| CN202069211U (en) * | 2011-05-31 | 2011-12-14 | 常州立图电子科技有限公司 | Integrated bracket of white board and projector |
| CN202800755U (en) * | 2012-10-24 | 2013-03-20 | 赵岩峰 | Art teaching easel used for outdoor sketching |
| CN107660908A (en) * | 2016-07-29 | 2018-02-06 | 高春红 | Multi-functional Portable easel |
| CN205997638U (en) * | 2016-07-30 | 2017-03-08 | 河北鸿音文化传播有限公司 | A kind of artist paints from life and fixes oil painting frame with variable combination type multilamellar |
| CN206568766U (en) * | 2016-09-30 | 2017-10-20 | 昆明理工大学 | A kind of teaching white board |
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| Publication number | Publication date |
|---|---|
| CN109624560A (en) | 2019-04-16 |
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Granted publication date: 20200710 Termination date: 20201218 |