CN204440739U - Teaching-aid abacus - Google Patents
Teaching-aid abacus Download PDFInfo
- Publication number
- CN204440739U CN204440739U CN201520115308.0U CN201520115308U CN204440739U CN 204440739 U CN204440739 U CN 204440739U CN 201520115308 U CN201520115308 U CN 201520115308U CN 204440739 U CN204440739 U CN 204440739U
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- CN
- China
- Prior art keywords
- teaching
- sliding tray
- bead
- abacus
- spacing
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model belongs to finance and accounting teaching apparatus field, particularly relates to a kind of teaching-aid abacus.Described teaching-aid abacus, comprise dish frame, the shelves be fixedly connected with dish frame and the bead be located on shelves, dish arch is provided with sliding tray along its length, two spacing sliding pearls are provided with in sliding tray, each spacing sliding pearl is fixedly connected with the vertical portion of a L-type peg respectively, sliding tray two ends and being communicated with along coiling the bracket groove that width of frame direction arranges; The groove width of described sliding tray is greater than the diameter of spacing sliding pearl, and the A/F of sliding tray is less than the diameter of spacing sliding pearl.The utility model structure is simple, designs ingenious, and hang simple, put conveniently, bead not easily moves, and improves the quality of teaching.
Description
Technical field
The utility model belongs to finance and accounting teaching apparatus field, particularly relates to a kind of teaching-aid abacus.
Background technology
Current finance and accounting teaching abacus primarily of wooden abacus frame, shelves and bead three part composition.In the conventional teaching of display abacus usage, teacher often through by abacus by rope erect be suspended on blackboard before or be positioned on lectern and show that the basic skills such as pearl are dialled in rechoning by the abacus.But there is following point: 1, each display abacus that uses all needs on abacus to be, to separate rope, and hanging position is high, and rope does not have plastotype, and suspension process wastes time and energy; 2, when wall there is no nail, abacus can only be placed on lectern, but the dish width of frame of abacus is little, stirs bead in addition and abacus is rocked, so need instructor with hand steered dish frame; 3, bead easily slides, and not by under instructor's hand force condition, temporarily cannot be fixed on certain position on shelves, define the health moving range of instructor, badly influence teaching efficiency and quality of instruction.
Utility model content
The purpose of this utility model is to provide a kind of teaching-aid abacus, and the utility model structure is simple, designs ingenious, and hang simple, put conveniently, bead not easily moves, and improves the quality of teaching.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of teaching-aid abacus, comprise dish frame, the shelves be fixedly connected with dish frame and the bead be located on shelves, described dish arch is provided with sliding tray along its length, two spacing sliding pearls are provided with in sliding tray, each spacing sliding pearl is fixedly connected with the vertical portion of a L-type peg respectively, sliding tray two ends and being communicated with along coiling the bracket groove that width of frame direction arranges; The groove width of described sliding tray is greater than the diameter of spacing sliding pearl, and the A/F of sliding tray is less than the diameter of spacing sliding pearl.
Preferably, the groove width of described bracket groove is less than the diameter of spacing sliding pearl.
Preferably, the vertical portion clearance fit of described bracket groove and L-type peg.
The horizontal part of preferred described L-type peg is provided with slipmat.
Preferably, described shelves are made up of magnetic material, and bead is fabricated from iron.
Preferably, described bead is circular, is made up of two semi-ring iron blocks; The end of each semi-ring iron block is installed with adhesive band respectively.
The pearl body major part of spacing sliding pearl of the present utility model is positioned at sliding tray, sub-fraction is exposed to the external world by the opening of sliding tray and is fixedly connected with the vertical portion of L-type peg, in addition the diameter of spacing sliding pearl is greater than the groove width of bracket groove, such a construction ensures spacing sliding pearl only to move in sliding tray, and cannot enter in bracket groove.Spacing sliding pearl drives L-type peg to move, and when spacing sliding pearl moves to the connectivity part of sliding tray two ends and bracket groove, the vertical portion of L-type peg can turn down, and realizes the vertical portion of L-type peg and the clearance fit of bracket groove.
When needs the utility model hangs, the vertical portion of L-type peg is separated with bracket groove, by mobile two spacing sliding pearls, adjusts the spacing of two L-type pegs, then the horizontal part of L-type peg and the nail of metope is mounted;
When needs the utility model is put to lectern, the vertical portion of L-type peg and bracket groove clearance fit, now, L-type peg is equivalent to the support of abacus, and the horizontal part of L-type peg contacts with lectern, and anti-skidding by slipmat.
When bead stirred by needs, after two semi-ring iron blocks can being enclosed within the target location on shelves, by mutual for the adhesive band of two semi-ring iron block ends bonding composition bead, because shelves are made up of magnetic material, adsorb the bead be fabricated from iron, make bead not easily produce movement.After demonstration, two semi-ring iron blocks are separated.
Compared with prior art, the utility model has following beneficial effect: structure is simple, designs ingenious, and hang simple, put conveniently, bead not easily moves, and improves the quality of teaching.
Accompanying drawing explanation
Fig. 1 is the structural representation of teaching-aid abacus in embodiment;
Fig. 2 is the structural representation of bead in Fig. 1;
Fig. 3 is the structure intention of semi-ring iron block in Fig. 2;
Fig. 4 is the cross section enlarged diagram of sliding tray in Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As Figure 1-4, a kind of teaching-aid abacus, comprise dish frame 1, the shelves 2 be fixedly connected with dish frame 1 and the bead 3 be located on shelves 2, described dish frame 1 top is provided with sliding tray 4 along its length, two spacing sliding pearls 5 are provided with in sliding tray 4, each spacing sliding pearl 5 is fixedly connected with the vertical portion of a L-type peg 7 respectively, sliding tray 4 two ends and being communicated with along coiling the bracket groove 6 that frame 1 Width arranges; The groove width of described sliding tray 4 is greater than the diameter of spacing sliding pearl 5, the A/F of sliding tray 4 is less than the diameter of spacing sliding pearl 5, the groove width of described bracket groove 6 is less than the diameter of spacing sliding pearl 5, and the vertical portion clearance fit of bracket groove 6 and L-type peg 7, the horizontal part of L-type peg 7 is provided with slipmat 10.Described shelves 2 are made up of magnetic material, and bead 3, in circular, is made up of two semi-ring iron blocks 8; The end of each semi-ring iron block 8 is installed with adhesive band 9 respectively.
The pearl body major part of spacing sliding pearl 5 of the present utility model is positioned at sliding tray 4, sub-fraction is exposed to the external world by the opening of sliding tray 4 and is fixedly connected with the vertical portion of L-type peg 7, in addition the diameter of spacing sliding pearl 5 is greater than the groove width of bracket groove 6, such a construction ensures spacing sliding pearl 5 only to move in sliding tray 4, and cannot enter in bracket groove 6.Spacing sliding pearl 5 drives L-type peg 7 to move, and when spacing sliding pearl 5 moves to the connectivity part of sliding tray 4 two ends and bracket groove 6, the vertical portion of L-type peg 7 can turn down, and realizes the vertical portion of L-type peg 7 and the clearance fit of bracket groove 6.
When needs the utility model hangs, the vertical portion of L-type peg 7 is separated with bracket groove 6, by mobile two spacing sliding pearls 5, adjusts the spacing of two L-type pegs 7, then the horizontal part of L-type peg 7 and the nail of metope is mounted;
When needs the utility model is put to lectern, the vertical portion of L-type peg 7 and bracket groove 6 clearance fit, now, L-type peg 7 is equivalent to the support of abacus, and the horizontal part of L-type peg 7 contacts with lectern, and anti-skidding by slipmat 10.
When needs demonstration bead 3 is stirred, after two semi-ring iron blocks 8 can being enclosed within the target location on shelves 2, by mutual for the adhesive band 9 of two semi-ring iron block 8 ends bonding composition bead, because shelves 2 are made up of magnetic material, adsorb the bead 3 be fabricated from iron, make bead 3 not easily produce movement.After demonstration, two semi-ring iron blocks 8 are separated.
Claims (6)
1. a teaching-aid abacus, comprise dish frame, the shelves be fixedly connected with dish frame and the bead be located on shelves, it is characterized in that, described dish arch is provided with sliding tray along its length, two spacing sliding pearls are provided with in sliding tray, each spacing sliding pearl is fixedly connected with the vertical portion of a L-type peg respectively, sliding tray two ends and being communicated with along coiling the bracket groove that width of frame direction arranges; The groove width of described sliding tray is greater than the diameter of spacing sliding pearl, and the A/F of sliding tray is less than the diameter of spacing sliding pearl.
2. teaching-aid abacus as claimed in claim 1, it is characterized in that, the groove width of described bracket groove is less than the diameter of spacing sliding pearl.
3. teaching-aid abacus as claimed in claim 2, is characterized in that, the vertical portion clearance fit of described bracket groove and L-type peg.
4. teaching-aid abacus as claimed in claim 3, it is characterized in that, the horizontal part of described L-type peg is provided with slipmat.
5. the teaching-aid abacus as described in as arbitrary in claim 1-4, it is characterized in that, described shelves are made up of magnetic material, and bead is fabricated from iron.
6. teaching-aid abacus as claimed in claim 5, it is characterized in that, described bead is circular, is made up of two semi-ring iron blocks; The end of each semi-ring iron block is installed with adhesive band respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115308.0U CN204440739U (en) | 2015-02-15 | 2015-02-15 | Teaching-aid abacus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115308.0U CN204440739U (en) | 2015-02-15 | 2015-02-15 | Teaching-aid abacus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204440739U true CN204440739U (en) | 2015-07-01 |
Family
ID=53608574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520115308.0U Expired - Fee Related CN204440739U (en) | 2015-02-15 | 2015-02-15 | Teaching-aid abacus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204440739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225580A (en) * | 2015-10-28 | 2016-01-06 | 郭志刚 | A kind of wisdom sighting disk |
-
2015
- 2015-02-15 CN CN201520115308.0U patent/CN204440739U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225580A (en) * | 2015-10-28 | 2016-01-06 | 郭志刚 | A kind of wisdom sighting disk |
| CN105225580B (en) * | 2015-10-28 | 2017-08-08 | 郭志刚 | A kind of wisdom sighting disk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150701 Termination date: 20170215 |