CN202748693U - Abacus special for teaching - Google Patents
Abacus special for teaching Download PDFInfo
- Publication number
- CN202748693U CN202748693U CN 201220447658 CN201220447658U CN202748693U CN 202748693 U CN202748693 U CN 202748693U CN 201220447658 CN201220447658 CN 201220447658 CN 201220447658 U CN201220447658 U CN 201220447658U CN 202748693 U CN202748693 U CN 202748693U
- Authority
- CN
- China
- Prior art keywords
- abacus
- framework
- push plate
- push pedal
- teaching
- 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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- Electrically Operated Instructional Devices (AREA)
Abstract
The utility model provides an abacus special for teaching. The abacus comprises a framework, abacus beads and abacus bead stringing rods which are arranged in the framework and used for stringing the abacus beads; an upper push plate and a lower push plate, which are parallel to each other, are connected to the abacus bead stringing rods in a sleeving manner; both the upper push plate and the lower push plate extend out of the framework, and extending ends of the upper push plate and the lower push plate are fixed on positive and negative threads of a positive and negative thread screw rod; and the framework is provided with a sliding groove corresponding to the upper push plate and the lower push plate. Compared with the prior art, the abacus special for teaching has the characteristics of reasonable design, simple structure, ingenious conception and the like. According to the abacus special for teaching, the explaining of teachers is facilitated, the observation visual field of students is effectively guaranteed, and the teaching quality of abacus classes is improved.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of simple in structure, quick special teaching abacus of zero clearing.
Background technology
In the mathematical education of school, rechoning by the abacus is a common subject, abacus then is the operational tool of often using, abacus not only has efficiently characteristics of calculating simplicity, also has hand brain and usefulness, improve the advantage of brain exploitation, at the applicating history in existing several thousand of China, the teacher imparts knowledge to students with a kind of mao of abacus at present, and the bead boom is provided with coarse hair, abacus just can hang on the beading and not drop like this, but there is the fast deficiency of zero clearing in this abacus, and the teacher needs manual zero clearing, and whole process wastes time and energy, it is very inconvenient to use, and reduces teacher's abacus teaching quality.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of fixing special teaching abacus simple in structure, convenient is provided.
The technical solution of the utility model realizes in the following manner, a kind of special teaching abacus, its structure comprises framework, bead, be arranged in the framework and the bead boom of serial connection bead, socket is parallel to each other on the described bead boom upper push pedal, lower push pedal, described upper push pedal, lower push pedal are all stretched out on the positive and negative silk that framework and its external part be fixed on positive backward leading screw, offer the chute corresponding with upper push pedal, lower push pedal at framework.Can handle simultaneously the up and down movement of push pedal by the setting of positive backward leading screw, abacus zero clearing process is finished rapidly.
As preferably, described base of frame is connected with base by support bar.
As preferably, the top of described positive backward leading screw is provided with turning handle.
The beneficial effect that the utility model compared with prior art produces is:
The characteristics such as that a kind of special teaching abacus of the present utility model has is simple in structure, easy to use, be skillfully constructed, the zero clearing structure of the utility model design uses flexibly, only need to rotate turning handle, bead on the bead boom just can automatic clear, whole framework is fixing firm simultaneously, be convenient to the teacher and explain use, the field of view that effective assurance student is set of support bar improves the quality of instruction of abacus.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Mark in the accompanying drawing represents respectively:
1, bead, 2, the bead boom, 3, framework, 4, upper push pedal, 5, lower push pedal, 6, turning handle, 7, positive backward leading screw, 8, chute, 9, support bar, 10, base.
Embodiment
Below in conjunction with accompanying drawing a kind of special teaching abacus of the present utility model is described in detail below.
As shown in Figure 1, a kind of special teaching abacus, its structure comprises framework 3, bead 1, be arranged in the framework 3 and the bead boom 2 of serial connection bead 1, socket is parallel to each other on the described bead boom 2 upper push pedal 4, lower push pedal 5, described upper push pedal 4, lower push pedal 5 are all stretched out on the positive and negative silk that framework 3 and its external part be fixed on positive backward leading screw 7, offer the chute 8 corresponding with upper push pedal 4, lower push pedal 5 at framework 3.
Described framework 3 bottoms are connected with base 10 by support bar 9; The top of described positive backward leading screw 7 is provided with turning handle 6.
Except the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (3)
1. special teaching abacus, its structure comprises framework, bead, be arranged in the framework and the bead boom of serial connection bead, it is characterized in that: socket is parallel to each other on the described bead boom upper push pedal, lower push pedal, described upper push pedal, lower push pedal are all stretched out on the positive and negative silk that framework and its external part be fixed on positive backward leading screw, offer the chute corresponding with upper push pedal, lower push pedal at framework.
2. a kind of special teaching abacus according to claim 1, it is characterized in that: described base of frame is connected with base by support bar.
3. a kind of special teaching abacus according to claim 1, it is characterized in that: the top of described positive backward leading screw is provided with turning handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447658 CN202748693U (en) | 2012-09-05 | 2012-09-05 | Abacus special for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220447658 CN202748693U (en) | 2012-09-05 | 2012-09-05 | Abacus special for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748693U true CN202748693U (en) | 2013-02-20 |
Family
ID=47708061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220447658 Expired - Fee Related CN202748693U (en) | 2012-09-05 | 2012-09-05 | Abacus special for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739597A (en) * | 2016-02-04 | 2016-07-06 | 苏州圣艺文体用品有限公司 | Abacus |
| CN109859573A (en) * | 2018-12-26 | 2019-06-07 | 葛琳(上海)科技有限公司 | A kind of portable preschool education instructional device |
-
2012
- 2012-09-05 CN CN 201220447658 patent/CN202748693U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739597A (en) * | 2016-02-04 | 2016-07-06 | 苏州圣艺文体用品有限公司 | Abacus |
| CN105739597B (en) * | 2016-02-04 | 2018-06-05 | 西安工程大学 | A kind of abacus |
| CN109859573A (en) * | 2018-12-26 | 2019-06-07 | 葛琳(上海)科技有限公司 | A kind of portable preschool education instructional device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130905 |