CN213082773U - Portable blackboard - Google Patents
Portable blackboard Download PDFInfo
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- CN213082773U CN213082773U CN202021819262.8U CN202021819262U CN213082773U CN 213082773 U CN213082773 U CN 213082773U CN 202021819262 U CN202021819262 U CN 202021819262U CN 213082773 U CN213082773 U CN 213082773U
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- disc
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- blackboard
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- fixing
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Abstract
The utility model discloses a portable blackboard, which comprises a plurality of assembling plates, a bracket and a connecting part, wherein the assembling plates are connected into a blackboard main body through the connecting part, and the bracket is supported on the blackboard main body; the connecting part comprises a connecting disc, a bolt and a fixed disc, two or four right-angle slots are arranged on the side surface of the connecting disc, and a through hole penetrating through the right-angle slots is formed in the disc surface of the connecting disc; the four corners of the assembling plate are provided with through holes, the top corners of the assembling plate are inserted into the right-angle slots of the connecting discs, and the bolts penetrate through the through holes and then are clamped and fixed with the fixed discs. The utility model discloses a portable blackboard simple structure, simple to operate, be convenient for fold and accomodate and expand the use.
Description
Technical Field
The utility model relates to a teaching aid field, concretely relates to portable blackboard.
Background
The blackboard is the essential important teaching aid in the teaching work, and the main fixed mounting of most blackboards is on classroom wall or support, and along with the continuous development of our country's education system is perfect, a lot of courses may expand outdoor, and the shared space of conventional blackboard is great and be not convenient for remove, consequently can be very troublesome when moving the blackboard from indoor to outdoor use to bring inconvenience for teaching work. Also often need use the blackboard in family's education simultaneously, current blackboard is bulky, and occupation space is many, is not convenient for accomodate.
Disclosure of Invention
The utility model discloses to prior art's not enough, provided a simple structure, simple to operate, be convenient for fold accomodate and expand the portable blackboard of use.
The utility model discloses a realize through following technical scheme:
a portable blackboard comprises a plurality of assembling plates, a bracket and a connecting part, wherein the assembling plates are connected into a blackboard main body through the connecting part, and the bracket is supported on the blackboard main body; the connecting part comprises a connecting disc, a bolt and a fixed disc, two or four right-angle slots are arranged on the side surface of the connecting disc, and a through hole penetrating through the right-angle slots is formed in the disc surface of the connecting disc; through holes are formed in four corners of the assembling plate, the vertex angle of the assembling plate is inserted into the right-angle slot of the connecting disc, and the plug pin penetrates through the through hole and then is clamped and fixed with the fixed disc; the fixed disc is provided with a special-shaped hole, the special-shaped fixed hole comprises a movable end and a locking end, and the size of the movable end is larger than that of the locking end; the bolt comprises an end plate, a first connecting column, a fixing column and a second connecting column, the first connecting column is fixedly connected with the end plate, the fixing column is located between the first connecting column and the second connecting column, the diameters of the first connecting column and the second connecting column are equal to the diameters of the through hole and the through hole, and the diameter of the fixing column is smaller than that of the first connecting column and the second connecting column; the diameter of the second connecting column is the same as that of the movable end, and the diameter of the fixed column is the same as that of the locking end. One corner of each of the two or four assembling plates is firstly inserted into the right-angle slot of the connecting disc, the through hole and the through hole are kept in a coaxial state, the inserting pin passes through the through hole and the through hole, the second connecting column completely passes through the movable end on the special-shaped hole, and at the moment, the fixed disc is moved or twisted to enable the fixed column to be clamped with the locking end on the special-shaped hole, so that the movement of the assembling plates is locked.
As a further improvement of the present invention, the length of the first connecting column is not more than the thickness of the connecting disc, and the length of the fixing column is not less than the thickness of the fixing disc.
As a further improvement, the connecting portion include central connecting portion and side connecting portion, the equipment board junction of blackboard main part periphery four sides is connected with the side connecting portion, the inside equipment board junction of blackboard main part is connected with central connecting portion. The central connecting part is mainly used for combining the four assembling plates together, and the side connecting plate is mainly used for connecting and fixing two adjacent assembling plates on the periphery of the blackboard main body.
As a further improvement, the center connecting portion include center connection pad, center bolt and central fixed disk, the center connection pad is the disc, the side of center connection pad is equipped with four right angle slots, the quotation of center connection pad is equipped with four the perforating hole.
As a further improvement, the side connecting portion include side connection pad, side bolt and side fixed disk, the side connection pad is the semicircle dish, the side of side connection pad is equipped with two right angle slots, the quotation of side connection pad is equipped with two the perforating hole.
As a further improvement, the periphery of side connection pad includes arcwall face and plane, be equipped with the erection column on the plane, the erection column with support detachable connects.
As a further improvement of the utility model, be equipped with the recess on the support, the erection column inserts the recess. The mounting posts are inserted into the grooves to limit the movement of the blackboard main body.
As a further improvement of the present invention, the support is foldable. The support is foldable, and is convenient for dismantle, accomodate the blackboard.
Compared with the prior art, the beneficial effects of the utility model reside in that: the portable blackboard has the advantages of simple structure, convenience in installation, convenience in storage and use, and capability of effectively reducing the storage volume and the occupied space of the blackboard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIGS. 1 to 3 are overall structural views of the portable blackboard of the present invention;
FIG. 4 is an exploded view of the portable blackboard of the present invention;
FIG. 5 is a structural view of a central connection pad of the portable blackboard of the present invention;
FIG. 6 is a structural view of a central bolt of the portable blackboard of the present invention;
FIG. 7 is a structural view of a central fixing plate of the portable blackboard of the present invention;
FIG. 8 is a structural view of a side connecting plate of the portable blackboard of the present invention;
FIG. 9 is a view showing the structure of the side fixing plate of the portable blackboard of the present invention;
FIG. 10 is a view showing the structure of a side latch of the portable blackboard according to the present invention;
fig. 11 is a partial enlarged view at a in fig. 3.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments using the present invention belong to the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
A portable blackboard comprises a plurality of assembling plates 2, supports 3 and connecting parts 4, wherein the assembling plates 2 are connected into a blackboard main body 1 through the connecting parts 4, and the supports 6 are supported on the blackboard main body 1; the connecting part 4 comprises a connecting disc 5, a bolt 6 and a fixed disc 7, two or four right-angle slots 8 are formed in the side face of the connecting disc, and a through hole 9 penetrating through the right-angle slots 8 is formed in the disc face of the connecting disc 5; through holes 10 are formed in four corners of the assembling plate 2, the top corners of the assembling plate 2 are inserted into the right-angle slots 8 of the connecting disc 5, and the bolts 6 penetrate through the through holes 9 and the through holes 10 and then are clamped and fixed with the fixed disc 7; the fixed disc 7 is provided with a special-shaped hole 11, the special-shaped fixed hole comprises a movable end 12 and a locking end 13, and the size of the movable end 12 is larger than that of the locking end 13; the bolt 6 comprises an end plate 14, a first connecting column 15, a fixing column 16 and a second connecting column 17, the first connecting column 15 is fixedly connected with the end plate 14, the fixing column 16 is located between the first connecting column 15 and the second connecting column 17, the diameters of the first connecting column 15 and the second connecting column 17 are equal to the diameters of the through hole 9 and the through hole 10, and the diameter of the fixing column 16 is smaller than that of the first connecting column 15 and the second connecting column 17; the diameter of the second connecting column 17 is the same as that of the movable end, and the diameter of the fixed column 16 is the same as that of the locking end 13. One corner of two or four of the assembly boards 2 is first inserted into the right-angle slot 8 of the connection disc 5, so that the through hole 10 and the through hole 9 are maintained in a coaxial state, the bolt 6 passes through the through hole 9 and the through hole 10, and the second connection column 17 completely passes through the movable end 12 on the special-shaped hole 11, at this time, the fixed disc 7 is moved or twisted to enable the fixed column 16 to be clamped with the locking end 13 on the special-shaped hole 11, and thus the movement of the assembly boards 2 is locked.
The length of the first connecting column 15 is not more than the thickness of the connecting disc 5, and the length of the fixing column 16 is not less than the thickness of the fixing disc 7. In the present embodiment, the length of the first connecting column 15 is equal to the thickness of the connecting disc 5, and the length of the fixing column 16 is equal to the thickness of the fixing disc 7.
The connecting part 4 comprises a central connecting part 18 and side connecting parts 19, the joints of the assembling plates 2 on the four sides of the periphery of the blackboard main body 1 are connected through the side connecting parts 19, and the joints of the assembling plates 2 in the blackboard main body 1 are connected through the central connecting part 18. The central connecting part 18 is mainly used for combining four assembling plates 2 together, and the side connecting plate 19 is mainly used for connecting and fixing two adjacent assembling plates 2 on the periphery of the blackboard main body 1.
The central connecting part 18 comprises a central connecting disc 18-1, a central bolt 18-2 and a central fixing disc 18-3, the central connecting disc 18-1 is a disc, four right-angle slots 8 are formed in the side face of the central connecting disc 18-1, and four through holes 9 are formed in the disc face of the central connecting disc 18-1.
The side connecting part 19 comprises a side connecting disc 19-1, a side bolt 19-2 and a side fixing disc 19-3, the side connecting disc 19-1 is a semicircular disc, two right-angle slots 8 are formed in the side face of the side connecting disc 19-1, and two through holes 9 are formed in the disc face of the side connecting disc.
The periphery of the side connecting disc 19-1 comprises an arc-shaped face 20 and a plane 21, a mounting column 22 is arranged on the plane 21, and the mounting column 22 is detachably connected with the support 3.
A groove 23 is formed in the bracket 3, and the mounting post 22 is inserted into the groove 23. The mounting posts 22 are inserted into the grooves 23 to limit the movement of the blackboard body 1.
The stand 3 is foldable. The support 3 is foldable, and is convenient for disassembling and storing the blackboard.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the essence of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a portable blackboard, includes polylith equipment board, support and connecting portion, connect into the blackboard main part through connecting portion between the equipment board, the support supports in the blackboard main part, its characterized in that:
the connecting part comprises a connecting disc, a bolt and a fixed disc, two or four right-angle slots are arranged on the side surface of the connecting disc, and a through hole penetrating through the right-angle slots is formed in the disc surface of the connecting disc;
through holes are formed in four corners of the assembling plate, the vertex angle of the assembling plate is inserted into the right-angle slot of the connecting disc, and the plug pin penetrates through the through hole and then is clamped and fixed with the fixed disc;
the fixed disc is provided with a special-shaped hole, the special-shaped hole comprises a movable end and a locking end, and the size of the movable end is larger than that of the locking end;
the bolt comprises an end plate, a first connecting column, a fixing column and a second connecting column, the first connecting column is fixedly connected with the end plate, the fixing column is located between the first connecting column and the second connecting column, the diameters of the first connecting column and the second connecting column are equal to the diameters of the through hole and the through hole, and the diameter of the fixing column is smaller than that of the first connecting column and the second connecting column;
the diameter of the second connecting column is the same as that of the movable end, and the diameter of the fixed column is the same as that of the locking end.
2. The portable blackboard of claim 1, wherein: the length of the first connecting column is not more than the thickness of the connecting disc, and the length of the fixing column is not less than the thickness of the fixing disc.
3. The portable blackboard of claim 2, wherein: the connecting parts comprise a central connecting part and side connecting parts, the assembling plate connecting parts of the four sides of the periphery of the blackboard main body are connected through the side connecting parts, and the assembling plate connecting parts in the blackboard main body are connected through the central connecting part.
4. The portable blackboard of claim 3, wherein: the central connecting part comprises a central connecting disc, a central bolt and a central fixing disc, the central connecting disc is a disc, four right-angle slots are formed in the side face of the central connecting disc, and four through holes are formed in the disc face of the central connecting disc.
5. The portable blackboard according to claim 3 or 4, wherein: the side connecting part comprises a side connecting disc, side bolts and a side fixing disc, the side connecting disc is a semicircular disc, two right-angle slots are formed in the side face of the side connecting disc, and two through holes are formed in the disc face of the side connecting disc.
6. The portable blackboard of claim 5, wherein: the periphery of side connection pad includes arcwall face and plane, be equipped with the erection column on the plane, the erection column with support detachable connects.
7. The portable blackboard of claim 6, wherein: the support is provided with a groove, and the mounting column is inserted into the groove.
8. The portable blackboard according to any one of claims 1 to 4 and 6 to 7, wherein: the stand is foldable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021819262.8U CN213082773U (en) | 2020-08-27 | 2020-08-27 | Portable blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021819262.8U CN213082773U (en) | 2020-08-27 | 2020-08-27 | Portable blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213082773U true CN213082773U (en) | 2021-04-30 |
Family
ID=75632473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021819262.8U Active CN213082773U (en) | 2020-08-27 | 2020-08-27 | Portable blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213082773U (en) |
-
2020
- 2020-08-27 CN CN202021819262.8U patent/CN213082773U/en active Active
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