CN201444378U - Four-bar linkage demonstration instrument - Google Patents
Four-bar linkage demonstration instrument Download PDFInfo
- Publication number
- CN201444378U CN201444378U CN2009200292841U CN200920029284U CN201444378U CN 201444378 U CN201444378 U CN 201444378U CN 2009200292841 U CN2009200292841 U CN 2009200292841U CN 200920029284 U CN200920029284 U CN 200920029284U CN 201444378 U CN201444378 U CN 201444378U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- backboard
- chute
- bar
- bar linkage
- 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
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses a four-bar linkage demonstration instrument which comprises a backboard and a four-bar linkage composed of four connecting bars whose end portions are hinged together in turn, wherein each connecting bar consists of two sections of connecting bars which can relatively slide, and each connecting bar is provided with a locking device which can limit the relative sliding of the two sections of the connecting bars, hinged shafts on the two ends of one of the four connecting bars are hollow, a chute is arranged on the backboard, and the four-bar linkage is connected on the backboard through bolts which pass through the chute and the hollow hinged shafts and nuts which are matched with the bolts. The demonstration instrument can realize the demonstration of a double-crank mechanism, a double-rocker mechanism and a crank-rocker mechanism, and has the advantages of convenient carrying and storage.
Description
Technical field
The utility model relates to a kind of teaching appliance, is specifically related to a kind of four-bar mechanism demonstrator.
Background technology
Four-bar mechanism in the planar linkage mechanism; in various machineries and instrument, obtain widespread use; be institution of higher learning's mechanical principle course will content, be frame with the connecting rod of different length, four-bar mechanism can be divided into double-crank mechanism, double rocker mechanism and crank and rocker mechanism.In teaching process, understand and to demonstrate by demonstrator for the ease of the student, existing demonstrator can only demonstrate that above-mentioned three kinds of structures are a kind of, and promptly double-crank mechanism, double rocker mechanism and crank and rocker mechanism are made three demonstrators respectively, carry and deposit very inconvenient.
The utility model content
The technical problems to be solved in the utility model is at above-mentioned deficiency, and a kind of demonstrator that all can demonstrate double-crank mechanism, double rocker mechanism and crank and rocker mechanism is provided, and has reached the purpose that is convenient for carrying and deposits.
In order to solve the problems of the technologies described above, the utility model provides a kind of four-bar mechanism demonstrator of following structure, and its design feature is: this demonstrator comprises backboard and by four hinged successively four-bar mechanisms that connecting rod constitutes of end; Every connecting rod all is made of two sections connecting rods that can slide relatively, all is provided with on every connecting rod to limit the locking device that its two sections connecting rods slide relatively, and wherein the hinge at connecting rod two ends is hollow hinge in four connecting rods; Backboard is provided with chute, four-bar mechanism by passing chute and hollow hinge bolt and be connected on the backboard with the bolt nut engaged.
The four-bar mechanism demonstrator of said structure, because every connecting rod all is made of two sections connecting rods that can slide relatively, can realize the demonstration of double-crank mechanism, double rocker mechanism and crank and rocker mechanism by the length of regulating four connecting rods, a demonstrator just can replace used three demonstrators, and the effect of demonstration is identical, therefore carries and deposit advantage easily.
For the ease of easy to operate, described chute is a T-slot, and bolt is a tommyhead bolt, and nut is a wing nut.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cut-open view along A-A line among Fig. 1;
Fig. 3 is the synoptic diagram of crank and rocker mechanism;
Fig. 4 is the synoptic diagram of double-crank mechanism;
Fig. 5 is the synoptic diagram of double rocker mechanism.
Embodiment
As depicted in figs. 1 and 2, the four-bar mechanism demonstrator comprises backboard 1 and the four-bar mechanism that is made of four connecting rods; Four connecting rods are respectively first connecting rod 5, second connecting rod 6, third connecting rod 7 and the 4th connecting rod 8.Every connecting rod all is made of two sections connecting rods, and two sections connecting rods are plugged on together, and wherein one section connecting rod is plugged in the inner chamber of another section connecting rod, the slip that two sections connecting rods can be relative, and the purpose that two sections connecting rods can slide relatively can be regulated the length of whole connecting rod.All be provided with on the every connecting rod and limit the locking device that its two sections connecting rods slide relatively, locking device is a puller bolt 9, and the head of puller bolt 9 is that butterfly is convenient to hand-held the rotation.The two ends of first connecting rod 5 and third connecting rod 7 respectively are connected with hinge, the hinge at first connecting rod 5 two ends is hollow hinge 10, the two ends of second connecting rod 6 and the 4th connecting rod 8 respectively are provided with hinge axis hole, the hinge axis hole of first connecting rod 5 hinge by its two ends and second connecting rod 6 and the 4th connecting rod 8 one ends and second connecting rod 6 and the 4th connecting rod 8 are hinged, and it is hinged that third connecting rod 7 passes through the hinge axis hole of the hinge at its two ends and the second connecting rod 6 and the 4th connecting rod 8 other ends and second connecting rod 6 and the 4th connecting rod 8.Backboard 1 is provided with the chute 2 of T shape, and four-bar mechanism is connected on the backboard 1 by tommyhead bolt 3 that passes chute 2 and hollow hinge 10 and the wing nut 4 that cooperates with tommyhead bolt 3.
The four-bar mechanism demonstrator of said structure, be frame all with first connecting rod 5, promptly fixing first connecting rod 5 when demonstration with backboard 1, when the length of first connecting rod 5 need be regulated, can unclamp tommyhead bolt 3 it is slided along chute 2, regulate back locking tommyhead bolt 3 and got final product.By the length of regulating each connecting rod can realize as shown in Figure 3 crank and rocker mechanism, as shown in Figure 4 double-crank mechanism and double rocker mechanism as shown in Figure 5.
Claims (2)
1. four-bar mechanism demonstrator is characterized in that: this demonstrator comprises backboard (1) and by four hinged successively four-bar mechanisms that connecting rod constitutes of end; Every connecting rod all is made of two sections connecting rods that can slide relatively, all is provided with on every connecting rod to limit the locking device that its two sections connecting rods slide relatively, and wherein the hinge at connecting rod two ends is hollow hinge in four connecting rods; Backboard (1) is provided with chute (2), four-bar mechanism by passing chute (2) and hollow hinge bolt (3) and be connected on the backboard (1) with bolt (3) nut engaged (4).
2. four-bar mechanism demonstrator according to claim 1 is characterized in that: described chute (2) is a T-slot, and bolt (3) is a tommyhead bolt, and nut (4) is a wing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200292841U CN201444378U (en) | 2009-07-11 | 2009-07-11 | Four-bar linkage demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200292841U CN201444378U (en) | 2009-07-11 | 2009-07-11 | Four-bar linkage demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444378U true CN201444378U (en) | 2010-04-28 |
Family
ID=42549059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200292841U Expired - Fee Related CN201444378U (en) | 2009-07-11 | 2009-07-11 | Four-bar linkage demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444378U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578343A (en) * | 2013-10-23 | 2014-02-12 | 沈阳建筑大学 | Comprehensive multi-rod mechanism teaching demonstration platform |
| CN104008693A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Four-bar mechanism teaching aid |
| CN104021719A (en) * | 2014-05-12 | 2014-09-03 | 南昌大学 | Planar linkage mechanism combined teaching aid |
| CN104036684A (en) * | 2014-05-22 | 2014-09-10 | 杭州电子科技大学 | Typical transmission mechanism comprehensive demonstration teaching aid |
| CN104036682A (en) * | 2014-05-05 | 2014-09-10 | 浙江工业大学 | Three-dimensional mechanical book |
| CN104134394A (en) * | 2014-08-15 | 2014-11-05 | 武汉理工大学 | Portable multifunctional link mechanism training aid |
| CN104217639A (en) * | 2014-08-25 | 2014-12-17 | 浙江工业大学 | Popup machine book |
| CN104332103A (en) * | 2014-11-25 | 2015-02-04 | 沈阳建筑大学 | Portable plane mechanism synthesis demonstration teaching tool |
| CN104637392A (en) * | 2015-03-06 | 2015-05-20 | 广西科技大学 | Multifunctional four-bar mechanism demonstrator |
| CN104933939A (en) * | 2014-03-20 | 2015-09-23 | 南京农业大学 | Linkage mechanism comprehensive experimental device |
| CN104217639B (en) * | 2014-08-25 | 2017-01-04 | 浙江工业大学 | Three-dimensional machinery book |
| CN108281080A (en) * | 2017-12-22 | 2018-07-13 | 杭州科技职业技术学院 | Four-bar mechanism teaching aid for mechanical movement theory teaching |
| 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 |
| CN114535967A (en) * | 2022-03-31 | 2022-05-27 | 北京航空航天大学 | Four-bar linkage positioning caliper with adjustable distance and angle |
-
2009
- 2009-07-11 CN CN2009200292841U patent/CN201444378U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578343A (en) * | 2013-10-23 | 2014-02-12 | 沈阳建筑大学 | Comprehensive multi-rod mechanism teaching demonstration platform |
| CN104933939A (en) * | 2014-03-20 | 2015-09-23 | 南京农业大学 | Linkage mechanism comprehensive experimental device |
| CN104008693A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Four-bar mechanism teaching aid |
| CN104008693B (en) * | 2014-04-22 | 2016-09-28 | 江汉大学 | A kind of quadric chain teaching aid |
| CN104036682A (en) * | 2014-05-05 | 2014-09-10 | 浙江工业大学 | Three-dimensional mechanical book |
| CN104021719A (en) * | 2014-05-12 | 2014-09-03 | 南昌大学 | Planar linkage mechanism combined teaching aid |
| CN104021719B (en) * | 2014-05-12 | 2016-04-13 | 南昌大学 | A kind of planar linkage mechanism combined teaching aid |
| CN104036684A (en) * | 2014-05-22 | 2014-09-10 | 杭州电子科技大学 | Typical transmission mechanism comprehensive demonstration teaching aid |
| CN104036684B (en) * | 2014-05-22 | 2016-04-06 | 杭州电子科技大学 | A kind of gear train overview display teaching aid |
| CN104134394A (en) * | 2014-08-15 | 2014-11-05 | 武汉理工大学 | Portable multifunctional link mechanism training aid |
| CN104217639A (en) * | 2014-08-25 | 2014-12-17 | 浙江工业大学 | Popup machine book |
| CN104217639B (en) * | 2014-08-25 | 2017-01-04 | 浙江工业大学 | Three-dimensional machinery book |
| CN104332103B (en) * | 2014-11-25 | 2016-08-24 | 沈阳建筑大学 | A kind of Portable plane synthesis of mechanism demonstration teaching aid |
| CN104332103A (en) * | 2014-11-25 | 2015-02-04 | 沈阳建筑大学 | Portable plane mechanism synthesis demonstration teaching tool |
| CN104637392A (en) * | 2015-03-06 | 2015-05-20 | 广西科技大学 | Multifunctional four-bar mechanism demonstrator |
| CN108281080A (en) * | 2017-12-22 | 2018-07-13 | 杭州科技职业技术学院 | Four-bar mechanism teaching aid for mechanical movement theory teaching |
| 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 |
| CN114535967A (en) * | 2022-03-31 | 2022-05-27 | 北京航空航天大学 | Four-bar linkage positioning caliper with adjustable distance and angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201444378U (en) | Four-bar linkage demonstration instrument | |
| CN203910157U (en) | Four-bar mechanism evolution teaching aid | |
| Sadlak et al. | The world-class university and ranking: Aiming beyond status | |
| CN104036684B (en) | A kind of gear train overview display teaching aid | |
| CN201829122U (en) | Crank connecting-rod and cam device | |
| CN201886690U (en) | Hinged four-bar linkage type demonstration device | |
| CN104167146B (en) | Pin-connected panel Mechanical hands for teaching | |
| CN203858813U (en) | Multi-freedom cam teaching device | |
| CN203931316U (en) | A kind of new hinges four-bar mechanism teaching aid | |
| CN201498138U (en) | Hinged four-lever mechanism demonstrator | |
| CN202075903U (en) | Hinge four-bar mechanism teaching instrument | |
| CN203085000U (en) | Demonstrator for revolute four-bar mechanism | |
| CN205428354U (en) | Multi -functional plane link mechanism teaching mode | |
| Vable | Intermediate mechanics of materials | |
| CN202394440U (en) | Hinge four-link mechanism experiment apparatus | |
| CN204010511U (en) | Planar linkage mechanism demonstrator | |
| CN203288204U (en) | Teaching publicity board | |
| CN202093704U (en) | Quadrilateral transformation demonstrating instrument | |
| CN202373207U (en) | Triangle demonstration aid | |
| CN201423843Y (en) | Angle trisecting unit | |
| CN202293915U (en) | Angular bisector drawing instrument | |
| CN203013031U (en) | Law class teaching card display shelf | |
| CN201374138Y (en) | Math teaching aid | |
| CN208889180U (en) | A kind of modular mechanical drive teaching aid | |
| CN204720088U (en) | Magnetic four-bar mechanism experiment instrument |
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: 20100428 Termination date: 20100711 |