CN201984710U - Demonstrating teaching device for hinge four-bar mechanism - Google Patents
Demonstrating teaching device for hinge four-bar mechanism Download PDFInfo
- Publication number
- CN201984710U CN201984710U CN2011200717139U CN201120071713U CN201984710U CN 201984710 U CN201984710 U CN 201984710U CN 2011200717139 U CN2011200717139 U CN 2011200717139U CN 201120071713 U CN201120071713 U CN 201120071713U CN 201984710 U CN201984710 U CN 201984710U
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- bar
- hinge
- wide
- sleeve
- teaching device
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Abstract
A demonstrating teaching device for a hinge four-bar mechanism relates to a demonstrating teaching device for a hinge four-bar mechanism principle in mechanical foundation, and comprises a rack (4), an extensible connecting bar (1), an extensible side link (3) and a connecting rod rest (2) with a fixed length. Bars are connected in hinge mode, and length scales (6) are arranged on the bars. The extensible connecting bar (1) is composed of a wide bar (8), a sleeve cylinder (9) arranged on the wide bar, a fixing screw (7) and a slender bar (5), and the slender bar (5) is connected into the sleeve cylinder (9) by the fixing screw (7). The extensible side link (3) is composed of the wide bar (8), the sleeve cylinder (9) arranged on the wide bar, the fixing screw (7) and the slender bar (5), and the slender bar (5) is connected into the sleeve cylinder (9) by the fixing screw (7). The demonstrating teaching device for the hinge four-bar mechanism has multiple functions, saves materials, and is convenient to understand the principle because the length of the bars can be read directly.
Description
Technical field
The utility model relates to a kind of teaching equipment, is specifically related to the demonstration teaching aid of the four-bar linkage principle in a kind of " Mechanical Fundamentals ".
Background technology
During the teaching of the four-bar linkage in carrying out " Mechanical Fundamentals ", usually will be to its principle of student explain, the formation of crank and rocker mechanism, double rocker mechanism, double-crank mechanism is relevant with the mutual relationship of each pole length, present such teaching aid can only be demonstrated wherein a kind of, need measure the length of each bar, therefore not only increase the quantity of teaching aid, and it is also clear inadequately that above-mentioned three kinds of mechanisms are formed the principle explanation.
The utility model content
The utility model provides a kind of demonstration teaching aid of improved four-bar linkage, and only with demonstrating a kind of in three kinds of fundamental types once overlapping teaching aid, the length that can directly read bar makes the understanding of four-bar linkage principle become easy.
The purpose of this utility model realizes by following technological means: the demonstration teaching aid of four-bar linkage, connecting rod rest by frame, extensible link, scalable side link, regular length is formed, be connected through the hinge between each bar, each bar is provided with length scales, extensible link is made of the sleeve on wide bar and the wide bar, gib screw and thin bar, gib screw is connected thin bar in the sleeve, scalable side link is made of the sleeve on wide bar and the wide bar, gib screw and thin bar, and gib screw is connected thin bar in the sleeve.
Compared with prior art the utlity model has following tangible advantage: a cover teaching aid multiple use, save materials, the length of each bar is directly read, and is convenient to understand principle.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the front elevation of telescopic rod of the present utility model;
Fig. 3 is the vertical view of telescopic rod of the present utility model;
Among the figure, 1-extensible link, the side link of 2-regular length, the scalable side link of 3-, 4-frame, the thin bar of 5-, 6-scale, 7-gib screw, the wide bar of 8-, 9-sleeve.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is described in further detail:
Four-bar linkage as shown in the figure is made up of the side link 2 of frame 4, extensible link 1, scalable side link 3, regular length, be connected through the hinge between each bar, each bar is provided with length scales 6, extensible link 1 is made of the sleeve 9 on wide bar 8 and the wide bar 8, gib screw 7 and thin bar 5, gib screw 7 is connected thin bar in the sleeve 9, scalable side link 3 is made of the sleeve 9 on wide bar 8 and the wide bar 8, gib screw 7 and thin bar 5, and gib screw 7 is connected thin bar in the sleeve 9.
During use, unclamp the gib screw 7 on scalable side rod 1 and the scalable side link 3, pull out or push thin bar 5, again fastening gib screw 7, thereby change the length of bar, by the length of scale 6 each bar of record, understand its principle according to three kinds of different forms of four-bar linkage of length relation between each bar and formation.
In a word, the utility model provides a kind of and has saved materials, has been convenient to understand the demonstration teaching aid of the four-bar linkage of principle.The above; it only is a part of embodiment of the present utility model; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (1)
1. the demonstration teaching aid of four-bar linkage, by frame (4), extensible link (1), scalable side link (3), the connecting rod rest of regular length (2) is formed, be connected through the hinge between each bar, it is characterized in that: each bar is provided with length scales (6), extensible link (1) is by the sleeve (9) on wide bar (8) and the wide bar (8), gib screw (7) and thin bar (5) constitute, gib screw (7) is connected thin bar (5) in the sleeve (9), scalable side link (3) is by the sleeve (9) on wide bar (8) and the wide bar (8), gib screw (7) and thin bar (5) constitute, and gib screw (7) is connected thin bar (5) in the sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200717139U CN201984710U (en) | 2011-03-18 | 2011-03-18 | Demonstrating teaching device for hinge four-bar mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200717139U CN201984710U (en) | 2011-03-18 | 2011-03-18 | Demonstrating teaching device for hinge four-bar mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984710U true CN201984710U (en) | 2011-09-21 |
Family
ID=44612166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200717139U Expired - Fee Related CN201984710U (en) | 2011-03-18 | 2011-03-18 | Demonstrating teaching device for hinge four-bar mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984710U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575228A (en) * | 2014-12-02 | 2015-04-29 | 广西大学 | Connecting rod mechanism experimental table with motion uncertainty |
| CN104933939A (en) * | 2014-03-20 | 2015-09-23 | 南京农业大学 | Linkage mechanism comprehensive experimental device |
| CN111739405A (en) * | 2020-07-17 | 2020-10-02 | 邢台职业技术学院 | Four-bar linkage teaching aid and mechanical structure demonstration system |
-
2011
- 2011-03-18 CN CN2011200717139U patent/CN201984710U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104933939A (en) * | 2014-03-20 | 2015-09-23 | 南京农业大学 | Linkage mechanism comprehensive experimental device |
| CN104575228A (en) * | 2014-12-02 | 2015-04-29 | 广西大学 | Connecting rod mechanism experimental table with motion uncertainty |
| CN111739405A (en) * | 2020-07-17 | 2020-10-02 | 邢台职业技术学院 | Four-bar linkage teaching aid and mechanical structure demonstration system |
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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: 20110921 Termination date: 20120318 |