CN209373850U - A kind of portable linear programming teaching aid - Google Patents
A kind of portable linear programming teaching aid Download PDFInfo
- Publication number
- CN209373850U CN209373850U CN201820548941.2U CN201820548941U CN209373850U CN 209373850 U CN209373850 U CN 209373850U CN 201820548941 U CN201820548941 U CN 201820548941U CN 209373850 U CN209373850 U CN 209373850U
- Authority
- CN
- China
- Prior art keywords
- box
- slide bar
- main box
- demonstration board
- mounting groove
- 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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Abstract
The utility model discloses a kind of portable linear programming teaching aids, it include: main box, secondary box, folding, internal several demonstration boards and slide bar for being equipped with magnetic sheet, it is provided with leading track slot and main folding mounting groove in the main box, secondary guide-track groove, secondary folding mounting groove and demonstration board mounting groove are provided in the pair box；The main box is connected with the secondary box by the folding；The both ends of the slide bar are fixed with orange block, and one end of the slide bar is located in the leading track slot, and the other end of the slide bar is located in the secondary guide-track groove；The demonstration board is mounted in the demonstration board mounting groove, and the demonstration board is equipped with the separator bar for being divided into one group of lateral and vertical ordered arrangement grid, and the upper surface of described demonstration board is adsorbed with magnetic ball；The upper surface of the main box, described secondary box are adsorbed with magnetic patch, the main box, the secondary box both ends stopple is housed, the utility model is easy to carry for explaining linear programming graphical method, and the simply removable combination of structure.
Description
Technical field
The utility model relates to a kind of portable linear programming teaching aids.
Background technique
Present teacher is saying linear programming graphical method class hour, it is often necessary to which graphing is explained on blackboard, student
It is not vivid enough to understand, and graphical method is the geometric intuition explanation of simplex method principle, is difficult to make student with the explanation of such method
The understanding of visual pattern.
Utility model content
For above-mentioned technical deficiency, the utility model provides a kind of portable linear programming teaching aid, comprising: main
Box, secondary box, folding, internal several demonstration boards and slide bar for being equipped with magnetic sheet are provided with leading track slot and main folding in the main box
Page mounting groove is provided with secondary guide-track groove, secondary folding mounting groove and demonstration board mounting groove in the pair box；The main box and the secondary box
It is connected by the folding；The both ends of the slide bar are fixed with orange block, and one end of the slide bar is located at the main guide rail
In slot, the other end of the slide bar is located in the secondary guide-track groove；The demonstration board is mounted in the demonstration board mounting groove, institute
It states demonstration board and is equipped with the separator bar for being divided into one group of lateral and vertical ordered arrangement grid, the upper surface of described demonstration board
It is adsorbed with magnetic ball；The upper surface of the main box, described secondary box are adsorbed with magnetic patch, the main box, the secondary box both ends stopple is housed.
Preferably, magnetic sheet is installed inside the orange block.
Preferably, the vertical projection profile of the leading track slot, the slide bar on the main cassette bottom face is overlapped.
Preferably, the bottom profile weight of upright projection and the leading track slot of the secondary guide-track groove on the main box
It closes.
Preferably, the magnetic ball quantity is 5 to 10.
The utility model structure is simple, small in size, light-weight, and removable combination, easy to carry, and fortune is greatly saved
The space occupied during defeated, when drawing, are referred to grid, and different curves are drawn on grid according to the needs of teaching, and will
Intersections of complex curve indicates with magnetic ball, then carries out being moved to desired position according to the slope of objective function by slide bar and explain,
Improve teaching efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram provided by the embodiment of the utility model (explosive view)；
Fig. 2 is the structural schematic diagram of main box provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of secondary box provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of slide bar provided by the embodiment of the utility model.
Description of symbols:
1, main box；1-1, leading track slot；1-2, main folding mounting groove；2, secondary box；2-1, secondary guide-track groove；
2-2, secondary folding mounting groove；2-3, demonstration board mounting groove；3, folding；4, demonstration board；4-1, separator bar；4-2, magnetic
Ball；5, slide bar；5-1, orange block；6, magnetic patch；7, stopple.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figures 1 to 4, a kind of portable linear programming teaching aid, comprising: main box 1, secondary box 2, folding 3, inside are equipped with
Several demonstration boards 4 and slide bar 5 of magnetic sheet are provided with leading track slot 1-1 and main folding mounting groove 1-2 in the main box 1, described
Secondary guide-track groove 2-1, pair folding mounting groove 2-2 and demonstration board mounting groove 2-3 are provided in secondary box 2；The main box 1 and the secondary box 2
It is connected by the folding 3；The both ends of the slide bar 5 are fixed with orange block 5-1, and one end of the slide bar 5 is located at described
In leading track slot 1-1, the other end of the slide bar is located in the secondary guide-track groove 2-1；The demonstration board 4 is mounted on the demonstration
In plate mounting groove 2-3, the demonstration board 4, which is equipped with, is divided into one group of laterally separator bar with the grid of vertical ordered arrangement
4-1, the upper surface of described demonstration board 4 are adsorbed with magnetic ball 4-2；The upper surface of the main box 1, described secondary box 2 are adsorbed with magnetic patch 6, described
Main box 1, the secondary box 2 both ends stopple 7 is housed；The shape of the demo 4 and demo mounting groove 2-3 both include L-type,
Including T-type, J-type.
Magnetic sheet is installed inside the orange block 5-1.
The vertical projection profile of the leading track slot 1-1, the slide bar 5 on main 1 bottom surface of box is overlapped.
The bottom profile weight of the pair guide-track groove 2-1 upright projection on the main box 1 and the leading track slot 1-1
It closes.
The magnetic ball 4-2 quantity is 5 to 10.
In use, main box 1, secondary box 2 open an angle of 90 degrees centered on folding 3, several demonstration boards 4 are mounted on demonstration board
In mounting groove 2-3, slide bar 5 moves freely between leading track slot 1-1 and secondary guide-track groove 2-1, the fixation of slide bar 5 with magnetic patch 6 come
Complete, when packing up teaching aid, main box 1, secondary box 2 both ends be plugged with stopple 7.
The utility model has the advantages of simple structure, small in size, light-weight and removable combination, easy to carry, is greatly saved
The space occupied in transportational process, when drawing, are referred to grid, and different curves are drawn on grid according to the needs of teaching, and
Intersections of complex curve is indicated with magnetic ball, then carries out being moved to desired position according to the slope of objective function by slide bar and say
Solution, improves teaching efficiency.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of portable linear programming teaching aid, characterized by comprising: main box (1), secondary box (2), folding (3), inside are equipped with
Several demonstration boards (4) and slide bar (5) of magnetic sheet, the main box (1) is interior to be provided with leading track slot (1-1) and main folding mounting groove
(1-2), the pair box (2) is interior to be provided with secondary guide-track groove (2-1), secondary folding mounting groove (2-2) and demonstration board mounting groove (2-3)；Institute
It states main box (1) and is connected with the secondary box (2) by the folding (3)；The both ends of the slide bar (5) are fixed with orange block
(5-1), one end of the slide bar (5) are located in the leading track slot (1-1), and the other end of the slide bar is located at the secondary guide rail
In slot (2-1)；The demonstration board (4) is mounted in the demonstration board mounting groove (2-3), and the demonstration board (4) is equipped with it
It is divided into one group laterally and the separator bar (4-1) of the grid of vertical ordered arrangement, the upper surface of described demonstration board (4) is adsorbed with magnetic ball
(4-2)；The upper surface of the main box (1), the secondary box (2) are adsorbed with magnetic patch (6), the main box (1), the secondary box (2) two
End is equipped with stopple (7).
2. a kind of portable linear programming teaching aid as described in claim 1, it is characterised in that: in the orange block (5-1)
Portion is equipped with magnetic sheet.
3. a kind of portable linear programming teaching aid as described in claim 1, it is characterised in that: the leading track slot (1-1), institute
Vertical projection profile of the slide bar (5) on main box (1) bottom surface is stated to be overlapped.
4. a kind of portable linear programming teaching aid as described in claim 1, it is characterised in that: the pair guide-track groove (2-1) exists
Upright projection on the main box (1) is overlapped with the bottom profile of the leading track slot (1-1).
5. a kind of portable linear programming teaching aid as described in claim 1, it is characterised in that: magnetic ball (4-2) quantity is 5
To 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548941.2U CN209373850U (en) | 2018-04-17 | 2018-04-17 | A kind of portable linear programming teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548941.2U CN209373850U (en) | 2018-04-17 | 2018-04-17 | A kind of portable linear programming teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373850U true CN209373850U (en) | 2019-09-10 |
Family
ID=67812033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820548941.2U Expired - Fee Related CN209373850U (en) | 2018-04-17 | 2018-04-17 | A kind of portable linear programming teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209373850U (en) |
-
2018
- 2018-04-17 CN CN201820548941.2U patent/CN209373850U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20200417 |