CN205122080U - Foldable shaft teaching aid - Google Patents
Foldable shaft teaching aid Download PDFInfo
- Publication number
- CN205122080U CN205122080U CN201520878052.9U CN201520878052U CN205122080U CN 205122080 U CN205122080 U CN 205122080U CN 201520878052 U CN201520878052 U CN 201520878052U CN 205122080 U CN205122080 U CN 205122080U
- Authority
- CN
- China
- Prior art keywords
- wheel shaft
- stay cord
- teaching aid
- dynamometer
- axis body
- 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
Links
Abstract
The utility model discloses a foldable shaft teaching aid, including bottom plate, stand, folding arm, wheel axis body, hook sign indicating number and dynamometer, the stand articulates in the bottom plate top surface, folding arm including articulate two connecting rods forming four -bar linkage between stand and bottom plate with locate the articulated department of two connecting rods be used for provide elasticity and make the co -linear torsional spring of two connecting rods, the axis level setting of wheel axis body and rotating around its self axis single degree of freedom is connected in the stand, the wheel axis body is including fixed big shaft and little shaft as an organic whole, the hook sign indicating number is connected in the excircle of little shaft through first stay cord, the dynamometer passes through the second stay cord and connects in the excircle of big shaft, the utility model discloses a foldable shaft teaching aid can fold it and move or deposit, and occupation space is few, convenient to use.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of collapsible wheel shaft teaching aid.
Background technology
As everyone knows, wheel shaft teaching aid is the one in teaching aid, is widely used in tutoring system, and existing wheel shaft teaching aid comprises support, and on support, be provided with circular wheel axis body, and wheel axis body is made up of the large wheel shaft be wholely set and little wheel shaft, little wheel shaft is provided with hook code; In teaching, arrange hook code and drive little wheel shaft to rotate, little wheel shaft drives large axle motions, and the power of large axle motions is shown by dynamometer; Support is generally inverted T-shaped shelf structure, and volume is large, not Easy Move and depositing.
Utility model content
In view of this, the utility model discloses a kind of collapsible wheel shaft teaching aid, can be folded up and carry out moving or depositing, occupy little space, easy to use.
Collapsible wheel shaft teaching aid of the present utility model, comprises base plate, column, folding arm, wheel axis body, hook code and dynamometer; Described column is articulated with plate top surface; Described folding arm comprises two connecting rods being articulated with and forming four-bar mechanism between column and base plate and the torsion spring for providing elastic force to make two connecting rod conllinear being located at two rod hinge connection places; Described axis horizontal of taking turns axis body arranges and is rotationally connected with column around himself axis single-degree-of-freedom; Wheel axis body comprises the large wheel shaft and little wheel shaft that are fixed as one; Described hook code is connected to the cylindrical of little wheel shaft by the first stay cord; Described dynamometer is connected to the cylindrical of large wheel shaft by the second stay cord.
Further, one end of described first stay cord is connected to hook code, and the other end of the first stay cord is wound in the cylindrical of little wheel shaft.
Further, one end of described second stay cord is connected to dynamometer, and the other end of the second stay cord is wound in the cylindrical of large wheel shaft.
The beneficial effects of the utility model are: collapsible wheel shaft teaching aid of the present utility model, can be folded up and carry out moving or depositing, occupy little space, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the collapsible wheel shaft teaching aid of the present embodiment, comprises base plate 1, column 2, folding arm, wheel axis body, hook code 3 and dynamometer 4; Described column 2 is articulated with base plate 1 end face; Described folding arm comprises and is articulated with two connecting rods 5 forming four-bar mechanism between column 2 and base plate 1 and the torsion spring for providing elastic force to make two connecting rod 5 conllinear being located at two connecting rod 5 hinged places; Described axis horizontal of taking turns axis body arranges and is rotationally connected with column 2 around himself axis single-degree-of-freedom; Wheel axis body comprises the large wheel shaft 6 and little wheel shaft 7 that are fixed as one; Described hook code 3 is connected to the cylindrical of little wheel shaft 7 by the first stay cord 8; Described dynamometer 4 is connected to the cylindrical of large wheel shaft 6 by the second stay cord 9; Column 2 and base plate 1 be hinged make column 2 can with base plate 1 close up with vertical 90 ° of angular regions in rotate, make between column 2 and base plate 1 mutually spacing when reaching corner extreme position; Between two connecting rods 5 hinged make two connecting rods 5 can mutually close up with 180 of conllinear ° of angular regions in rotate, make between two connecting rods 5 mutually spacing when reaching corner extreme position, improve column 2 to fold and the stability under closed configuration with base plate 1, torsion spring set is loaded on the hinge between two connecting rods 5, compact conformation, attractive in appearance, base plate 1 is provided with the hinged ear for connecting column 2 and respective link 5; Column 2 is also provided with the hinged ear for connecting respective link 5.
In the present embodiment, the other end that one end of described first stay cord 8 is connected to hook code 3, first stay cord 8 is wound in the cylindrical of little wheel shaft 7, and hook code 3 is freely sagging.
In the present embodiment, one end of described second stay cord 9 is connected to dynamometer 4, and the other end of the second stay cord 9 is wound in the cylindrical of large wheel shaft 6, and dynamometer 4 is portable by teaching aid demonstrator, also dynamometer 4 base plate 1 be can be installed on or column 2 makes whole teaching aid be in inner equilibrium state, demonstration and explanation are convenient to.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a collapsible wheel shaft teaching aid, is characterized in that: comprise base plate, column, folding arm, wheel axis body, hook code and dynamometer; Described column is articulated with plate top surface; Described folding arm comprises two connecting rods being articulated with and forming four-bar mechanism between column and base plate and the torsion spring for providing elastic force to make two connecting rod conllinear being located at two rod hinge connection places; Described axis horizontal of taking turns axis body arranges and is rotationally connected with column around himself axis single-degree-of-freedom; Wheel axis body comprises the large wheel shaft and little wheel shaft that are fixed as one; Described hook code is connected to the cylindrical of little wheel shaft by the first stay cord; Described dynamometer is connected to the cylindrical of large wheel shaft by the second stay cord.
2. collapsible wheel shaft teaching aid according to claim 1, it is characterized in that: one end of described first stay cord is connected to hook code, the other end of the first stay cord is wound in the cylindrical of little wheel shaft.
3. collapsible wheel shaft teaching aid according to claim 2, it is characterized in that: one end of described second stay cord is connected to dynamometer, the other end of the second stay cord is wound in the cylindrical of large wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878052.9U CN205122080U (en) | 2015-11-06 | 2015-11-06 | Foldable shaft teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520878052.9U CN205122080U (en) | 2015-11-06 | 2015-11-06 | Foldable shaft teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122080U true CN205122080U (en) | 2016-03-30 |
Family
ID=55577666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520878052.9U Expired - Fee Related CN205122080U (en) | 2015-11-06 | 2015-11-06 | Foldable shaft teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718114A (en) * | 2019-11-30 | 2020-01-21 | 兰州城市学院 | A mathematics teaching aid for training of mathematics thinking |
-
2015
- 2015-11-06 CN CN201520878052.9U patent/CN205122080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718114A (en) * | 2019-11-30 | 2020-01-21 | 兰州城市学院 | A mathematics teaching aid for training of mathematics thinking |
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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: 20160330 Termination date: 20171106 |