CN203882532U - Rod mechanism teaching model - Google Patents
Rod mechanism teaching model Download PDFInfo
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- CN203882532U CN203882532U CN201420234464.4U CN201420234464U CN203882532U CN 203882532 U CN203882532 U CN 203882532U CN 201420234464 U CN201420234464 U CN 201420234464U CN 203882532 U CN203882532 U CN 203882532U
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- box body
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- side link
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Abstract
The utility model discloses a rod mechanism teaching model comprising a box body, a manual operation rod transmission mechanism, a magic rail deformation mechanism and a guide rail moving mechanism. The rod mechanism teaching model is reliable in work and convenient in operation, any track can be demonstrated, examples of using a typical rod mechanism in real life can also be demonstrated, any aligned slider-crank mechanism and any biased slider-crank mechanism can be demonstrated, the rod mechanism teaching model is lowered in production cost, the rod mechanism teaching model which is originally placed in a display cabinet of a laboratory turned into a portable model which can be held by a student who can explore with his own hands, any track can be demonstrated by the model through simple transformation of the model, the rod mechanism teaching model is strong in interest, and exploration and innovation capability of the student can be stimulated.
Description
Technical field
The utility model relates to a kind of teaching aid model, especially relates to a kind of teaching mode that can allow student correctly be familiar with linkage and show the linkage of any track.
Background technology
The psychologic achievement in research of pedagogy shows, student is forming the initial period of concept, all must first the observation of concrete things be changed into the perceptual knowledge irrelevant with concrete things with contacting by means of sensation, then perceptual knowledge is transformed into rational knowledge abstract, that summarize.Student, in learning process, accept the mankind's cognitive achievements in the short period of time, for further understanding and reforming world are laid a solid foundation.The mankind's cognitive achievements is by various concept represents.Take in the student that thinking in images is main thinking way, setting up concept, to depend that teacher tells about alone be not all right, much cannot see impalpable thing all to lean on some specifically intuitively teaching aid they are demonstrated out.So in modern teaching, with concrete model and audiovisual aids describe with demonstrate operation remain very important.
Existing linkage teaching mode has many drawbacks in the use: 1. movement locus performance is not directly perceived; 2. bar can only be fixed length straight-bar; 3. a covering device can only be demonstrated single mechanism; 4. showcase, can only put in laboratory; 5. expensive.In sum, existing heaviness, expensive linkage show cabinet for education models can only be put in laboratory after buying, and can not take classroom to and allow student do it yourself to move back and forth.The settling mode of prior art scheme is to adopt expansion link form to change bar long by synthetic one of two bars, but such technical scheme complex operation, teaching efficiency are not remarkable, still can not solve the problems such as power input, track demonstration, crank block biasing.The more important thing is, these stiff straight-bar forms can not allow student be familiar with bar and linkage comprehensively and profoundly even to form bar can only be straight thinking set.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of teaching mode that can allow student correctly be familiar with linkage and show the linkage of any track is provided.
A linkage teaching mode, comprises box body, hand lever gear train, magic rail deformation mechanism and guide rail travel mechanism.Described box body be one rectangular-shaped, the groove of its front end in being provided with laterally, its left end is provided with through hole.Described hand lever gear train is zigzag handle, and the through hole of described box body is passed in described zigzag handle one end from box body rear end.Described guide rail travel mechanism comprises slide block and closed slide; Described slide block is movably arranged on closed slide, and described closed slide level is arranged in the groove of box body.Described magic rail deformation mechanism is arranged on box body the place ahead, and it is three rods, comprises former lever, connecting rod and side link.Described former lever one end is fixedly connected with the zigzag handle afterbody through box body through hole, the other end and rod hinge connection, and the described connecting rod other end and side link are hinged, and the described side link other end and slide block are hinged.
Further, described three rods: it is rectangle that former lever, connecting rod and side link are respectively the former lever of fine copper, fine copper connecting rod and its cross sectional shape of fine copper side link, rectangular aspect ratio scope is 3:1～10:3, can guarantee that like this rods can any bending regulate two ends articulation hole spacing in same plane, and there is enough rigidity.Described former lever one end square opening, the other end is for being articulation hole, described connecting rod and side link two ends are articulation hole, described zigzag handle afterbody and former lever junction are square rotating shaft, described square rotating shaft is fixedly connected with by screw with the square hole of former lever one end, the articulation hole of the articulation hole of the described other end and connecting rod one end is hinged by loose-joint butt, the articulation hole of the described connecting rod other end is hinged by loose-joint butt by the articulation hole of loose-joint butt and side link one end, and the articulation hole of the described side link other end is hinged by loose-joint butt and slide block.
Further, also comprise track displaying mechanism, described track shows that mechanism is connected with connecting rod, and it comprises indicator stem, the first strong magnet and track lamp.Described indicator stem stage casing is the fine copper body of rod, and its one end is provided with ferromagnetic fixed block, and the other end is provided with shoulder hole.Described track lamp is arranged in shoulder hole, and described ferromagnetic fixed block and the first strong magnet are separately positioned on connecting rod both sides, by the first strong magnet, the magnetic force of ferromagnetic fixed block are absorbed and fixed at indicator stem on connecting rod.Track shows that mechanism's effect is the movement locus that finds particular point and demonstrated this point by track lamp.
Further, described box body groove both sides are embedded in and are provided with the second strong magnet.Described guide rail travel mechanism also comprises the ferromagnetic locating piece that is arranged on closed slide both sides and the 3rd strong magnet that is arranged on slide block both sides.Described closed slide is ferromagnetic guide rail, and its surface is coated with scuff-resistant coating.Described three strongest ones magnet adsorption is on closed slide.Described closed slide is arranged on closed slide absorption in box body groove the magnetic force of ferromagnetic locating piece by the second strong magnet.
Further, also comprise connecting-rods with constant lengh assembly, described connecting-rods with constant lengh assembly is the transparent flat-shaped plastic bar that some length differs, and its two ends are provided with draw-in groove.
Further, described box body bottom portion of groove and both sides are provided with scale strip.
Further, also comprise the long governor motion of bar, also comprise the long governor motion of bar, the long governor motion of described bar comprises handgrip and fastener, and described handgrip is provided with a plane, and described fastener is two right cylinders, and described fastener is vertically mounted in the plane of handgrip.
Further, described box body is horizontally arranged with the cavity volume of opening upwards.
The main new method of the utility model comprises 1, uses rods change bar long; 2, use indicator stem and track lamp to show movement locus; 3, scientifically utilize the adsorptive power of strong magnet to determine closed slide position, realize crank block to the heart and biasing; 4, commercialization design, portable easy to assemble.The utility model reliable operation, easy to operate, can demonstrate any track comprise the example that uses of the typical linkage of demonstration in actual life; Reduced the production cost of linkage teaching mode; By pendulum the showcase in laboratory become can allow student hand held in, the Portable model explored of doing it yourself; One set of model can be demonstrated any track through simple transformation, interesting strong; Can excite student's exploration and innovation ability.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is that the utility model track is shown structural scheme of mechanism
Fig. 3 is the long governor motion schematic diagram of the utility model bar
Fig. 4 is any track schematic diagram of the utility model
Fig. 5 is the utility model typical case four-bar mechanism schematic diagram
Fig. 6 is the utility model slider-crank mechanism schematic diagram
Referring to drawings and the specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Figure 1, a kind of linkage teaching mode, comprises box body 1, hand lever gear train, magic rail deformation mechanism, guide rail travel mechanism, connecting-rods with constant lengh assembly 5, long auxiliary body, the track displaying mechanism of regulating of bar.Box body 1 be one rectangular-shaped, the groove 11 of its front end in being provided with laterally, its left end is provided with through hole, its inner transverse is provided with the cavity volume 12 of opening upwards.Groove 11 both sides are inlaid with respectively the second strong magnet 13.Bottom portion of groove and both sides are provided with scale strip.
Hand lever gear train is zigzag handle 2, and the through hole of described box body 1 is passed in described zigzag handle 2 one end from box body 1 rear end.Guide rail travel mechanism 4 comprises slide block 41, closed slide 42, ferromagnetic locating piece 43 and the 3rd strong magnet 44.Closed slide 42 is two ferromagnetic guide rails of parallel cylinder, and its material is ferromagnetic material, can be by magnet adsorption, and its surface is coated with wearing layer.Slide block 41 is nonferromagnetic material, and closed slide 42 is movably arranged on slide block 41 on closed slide 42 through slide block 41.Ferromagnetic locating piece 43 is also to be made by ferromagnetic material, and it is arranged on closed slide 42 both sides, and closed slide 42 is arranged on closed slide 42 level absorption in box body 1 groove by the magnetic force of 13 pairs of ferromagnetic locating pieces 43 of the second strong magnet.The 3rd strong magnet 44 has two, is adsorbed on closed slide 42, and is arranged on slide block 41 both sides, and two the 3rd strong magnets 44 are adsorbed on closed slide 42 and while being clamped in slide block 41 both sides, can locked slide block 41; Take two the 3rd strong magnets 44 away and can untie slide block 41.Rely on to adjust the 3rd strong magnet 44 positions slide block 41 be locked in and meet frame length adjustment and require position or untie the demonstration that slide block 41 is realized slider-crank mechanism, by ferromagnetic locating piece 43, in box body 1 groove, move up and down can realize slider-crank mechanism to the heart and positive negative bias.
Evil spirit rail deformation mechanism is arranged on box body 1 the place ahead, it is three rods, comprise former lever 31, connecting rod 32 and side link 33, article three, rods: former lever 31, connecting rod 32 and side link 33 are respectively the former lever 31 of fine copper, fine copper connecting rod 32 and fine copper side link 33, its cross sectional shape is rectangle, and rectangular aspect ratio scope is 3:1～10:3.Particularly, rectangle length scope be 3mm to 10mm, width range is that 1mm is to 3mm.Can guarantee that like this rods can any bending regulate two ends articulation hole spacing in same plane, and there is enough rigidity.Former lever 31 one end square openings, the other end is for being articulation hole, connecting rod 32 and side link 33 two ends are articulation hole, zigzag handle 2 afterbodys and former lever 31 junctions are square rotating shaft 21, square rotating shaft 21 is fixedly connected with by screw 22 with the square hole of former lever 31 one end, the articulation hole of the articulation hole of the other end and connecting rod 32 one end is hinged by loose-joint butt, the articulation hole of connecting rod 32 other ends is hinged by loose-joint butt by the articulation hole of loose-joint butt and side link 33 one end, and the articulation hole of side link 33 other ends is hinged by loose-joint butt and slide block 41.
Also comprise track displaying mechanism, for showing the movement locus of magic rail linkage.As shown in Figure 2, track shows that mechanism is connected with connecting rod 32, and it comprises indicator stem 71, the first strong magnet 72 and track lamp 73.Indicator stem 71 stage casings are the fine copper body of rod, and fine copper has good moulding, can bend to easily arbitrary shape, and can keep certain rigidity.Indicator stem 71 one end are provided with ferromagnetic fixed block 711, and the other end is provided with shoulder hole 712.Track lamp 73 is arranged in shoulder hole 712, and ferromagnetic fixed block 711 and the first strong magnet 72 are separately positioned on connecting rod 32 both sides, and connecting rod 32 is clipped in the middle, and the magnetic force by 72 pairs of ferromagnetic fixed blocks 711 of the first strong magnet is absorbed and fixed at indicator stem 71 on connecting rod 32.Track shows that mechanism's effect is the movement locus that finds particular point and demonstrated these points by track lamp 73.
Further, also comprise connecting-rods with constant lengh assembly 5, the transparent flat-shaped plastic bar that connecting-rods with constant lengh assembly 5 differs for some length, its two ends are provided with draw-in groove.Connecting-rods with constant lengh assembly 5 can be stuck on loose-joint butt, to determine bar length and the bar position of each rods, makes magic rail linkage can show typical four-bar mechanism at real-life application example.Article three, the connecting-rods with constant lengh of different length is a set of, the corresponding a kind of four-bar mechanism model of every suit connecting-rods with constant lengh.
Further, also comprise the long governor motion 8 of bar, as shown in Figure 3, the long governor motion 8 of bar comprises handgrip 81 and fastener 82, and handgrip 81 is provided with a plane, and fastener 82 is two right cylinders, and fastener 82 is vertically mounted in the plane of handgrip 81.Hand is taken the long governor motion 8 of bar, by plane, develops rods side, and two right cylinder fasteners 82 block rods, and with hand, pulling rods, just to change easily rods long.
The utility model linkage teaching mode structure adopts magnet, loose-joint butt and screw designs, fast assembling-disassembling easily, and the parts such as the connecting-rods with constant lengh removing and rods are put into cavity volume 12, easy to carry.
Below in conjunction with example, using method of the present utility model is described:
The arbitrarily realization of track: as Fig. 4 is used that the long bar that regulates auxiliary body to regulate former lever 31, connecting rod 32, side link 33, indicator stem 71 of bar is long, bar position is to different length, position, then a set of connecting-rods with constant lengh assembly 5 is arranged on to rotating shaft and loose-joint butt place, the 3rd strong magnet 44 is adsorbed on the closed slide 42 of slide block 41 both sides, by slide block 41 lockings, by rotating zigzag handle 2 manual power, be input to after rotating shaft, drive each rods and indicator stem 71 motions, track lamp 73 can be demonstrated out any movement locus.
Typical case's four-bar mechanism is in the demonstration of real-life example: the same, as Fig. 5 only need be used that the long bar that regulates auxiliary body to regulate former lever 31, connecting rod 32, side link 33, indicator stem 71 of bar is long, bar position is to length-specific, position, the 3rd strong magnet 44 is adsorbed on the closed slide 42 of slide block 41 both sides, by slide block 41 lockings, can demonstrate typical four-bar mechanism motion, the motion of Ru Tu7Shi turned off in synchronization mechanism.Evil spirit rail linkage can also be demonstrated the typical four-bar mechanism motion examples such as photography hoistable platform, crane formula crane, double rocking lever, crank rocker, crank block, double-crank, parallel-crank mechanism, isosceles trapezoid mechanism.
The demonstration of slider-crank mechanism: as Fig. 6 connects a rods between slide block 41 and former lever 31 articulation holes, untie slide block 41, regulate the long slider-crank mechanism that becomes of suitable bar.The ferromagnetic locating piece 43 that moves up and down closed slide 42 both sides can demonstrate crank block to the heart and positive negative bias.Figure 8 shows that the negative bias demonstration of crank block, offset or dish can directly be read above the scale of box body 1 the right and left.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not departed to spirit and scope of the present utility model, if within these changes and modification belong to claim of the present utility model and equivalent technologies scope, the utility model is also intended to comprise these changes and modification.
Claims (8)
1. a linkage teaching mode, is characterized in that: comprise box body, hand lever gear train, magic rail deformation mechanism and guide rail travel mechanism, described box body be one rectangular-shaped, the groove of its front end in being provided with laterally, its left end is provided with through hole; Described hand lever gear train is zigzag handle, and the through hole of described box body is passed in described zigzag handle one end from box body rear end; Described guide rail travel mechanism comprises slide block and closed slide; Described slide block is movably arranged on closed slide, and described closed slide level is arranged in the groove of box body; Described magic rail deformation mechanism is arranged on box body the place ahead, it is three rods, comprise former lever, connecting rod and side link, described former lever one end is fixedly connected with the zigzag handle one end through box body through hole, the other end and rod hinge connection, the described connecting rod other end and side link are hinged, and the described side link other end and slide block are hinged.
2. a kind of linkage teaching mode according to claim 1, it is characterized in that: described three rods: former lever, connecting rod and side link are respectively the former lever of fine copper, fine copper connecting rod and fine copper side link, its cross sectional shape is rectangle, rectangular aspect ratio scope is 3:1～10:3, described former lever one end square opening, the other end is for being articulation hole, described connecting rod and side link two ends are articulation hole, described zigzag handle afterbody and former lever junction are square rotating shaft, described square rotating shaft is fixedly connected with by screw with the square hole of former lever one end, the articulation hole of the articulation hole of the described other end and connecting rod one end is hinged by loose-joint butt, the articulation hole of the described connecting rod other end is hinged by loose-joint butt by the articulation hole of loose-joint butt and side link one end, the articulation hole of the described side link other end is hinged by loose-joint butt and slide block.
3. a kind of linkage teaching mode according to claim 1, it is characterized in that: also comprise track displaying mechanism, described track shows that mechanism is connected with connecting rod, it comprises indicator stem, the first strong magnet and track lamp, described indicator stem stage casing is the fine copper body of rod, its one end is provided with ferromagnetic fixed block, the other end is provided with shoulder hole, described track lamp is arranged in shoulder hole, described ferromagnetic fixed block and the first strong magnet are separately positioned on connecting rod both sides, by the first strong magnet, the magnetic force of ferromagnetic fixed block are absorbed and fixed at indicator stem on connecting rod.
4. a kind of linkage teaching mode according to claim 1, it is characterized in that: described box body groove both sides are embedded in and are provided with the second strong magnet, described guide rail travel mechanism also comprises the ferromagnetic locating piece that is arranged on closed slide both sides and the 3rd strong magnet that is arranged on slide block both sides, described closed slide is ferromagnetic guide rail, its surface is coated with scuff-resistant coating, described three strongest ones magnet adsorption is on closed slide, and described closed slide is arranged on closed slide in box body groove the magnetic force of ferromagnetic locating piece by the second strong magnet.
5. a kind of linkage teaching mode according to claim 1, is characterized in that: also comprise connecting-rods with constant lengh assembly, described connecting-rods with constant lengh assembly is the transparent flat-shaped plastic bar that some length differs, and its two ends are provided with draw-in groove.
6. a kind of linkage teaching mode according to claim 1, is characterized in that: described box body bottom portion of groove and both sides are provided with scale strip.
7. a kind of linkage teaching mode according to claim 1, it is characterized in that: also comprise the long governor motion of bar, the long governor motion of described bar comprises handgrip and fastener, and described handgrip is provided with a plane, described fastener is two right cylinders, and described fastener is vertically mounted in the plane of handgrip.
8. a kind of linkage teaching mode according to claim 1, is characterized in that: described box body is horizontally arranged with the cavity volume of opening upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234464.4U CN203882532U (en) | 2014-05-08 | 2014-05-08 | Rod mechanism teaching model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420234464.4U CN203882532U (en) | 2014-05-08 | 2014-05-08 | Rod mechanism teaching model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882532U true CN203882532U (en) | 2014-10-15 |
Family
ID=51683008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420234464.4U Withdrawn - After Issue CN203882532U (en) | 2014-05-08 | 2014-05-08 | Rod mechanism teaching model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882532U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240581A (en) * | 2014-05-08 | 2014-12-24 | 韶关学院 | Bar mechanism teaching model |
| CN106205343A (en) * | 2015-05-05 | 2016-12-07 | 南京农业大学 | Magnetic four-bar mechanism experiment instrument |
| CN115148082A (en) * | 2022-06-27 | 2022-10-04 | 北京航空航天大学 | A modularization teaching aid for demonstrating zoom and can open mechanism motion principle |
-
2014
- 2014-05-08 CN CN201420234464.4U patent/CN203882532U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240581A (en) * | 2014-05-08 | 2014-12-24 | 韶关学院 | Bar mechanism teaching model |
| CN104240581B (en) * | 2014-05-08 | 2016-08-17 | 韶关学院 | A kind of linkage teaching mode |
| CN106205343A (en) * | 2015-05-05 | 2016-12-07 | 南京农业大学 | Magnetic four-bar mechanism experiment instrument |
| CN115148082A (en) * | 2022-06-27 | 2022-10-04 | 北京航空航天大学 | A modularization teaching aid for demonstrating zoom and can open mechanism motion principle |
| CN115148082B (en) * | 2022-06-27 | 2023-03-21 | 北京航空航天大学 | A modularization teaching aid for demonstrating zoom and can open mechanism motion principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |