CN104008695A - Mechanical-drive classroom teaching aid - Google Patents
Mechanical-drive classroom teaching aid Download PDFInfo
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- CN104008695A CN104008695A CN201410163631.5A CN201410163631A CN104008695A CN 104008695 A CN104008695 A CN 104008695A CN 201410163631 A CN201410163631 A CN 201410163631A CN 104008695 A CN104008695 A CN 104008695A
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Abstract
The invention discloses a mechanical-drive classroom teaching aid and belongs to the field of mechanical classroom teaching aids. The mechanical-drive classroom teaching aid comprises a hinge buckle and a plurality of book page devices installed on the hinge buckle, each book page device comprises a transparent shell and a mechanical movement structure installed in the shell, and the mechanical movement structure of each book page device comprises one or more of a power mechanism, a double-crank mechanism, a double-rocker mechanism, a crank and rocker mechanism, a cam mechanism and a gear mechanism. The mechanical-drive classroom teaching aid can make a demonstration continuously move through operation of the mechanical mechanisms, meanwhile, the classroom teaching aid is simple and ingenious in structure, easy and convenient to operate and capable of showing the mechanical movement principle in teaching concisely and clearly and improving the teaching quality, the teaching aid is fixed in a transparent box, the operation process of each mechanism can be observed visually, divergent thinking of students is facilitated, and the innovation consciousness is improved.
Description
Technical field
The present invention relates to teaching aid field, mechanical classroom, particularly a kind of mechanically operated classroom teaching aid.
Background technology
Machinery classroom teaching aid is that mechanical forms of motion is demonstrated to student and seen intuitively, helps student to understand mechanical forms of motion.
Existing mechanical classroom teaching aid structure is simple, be mostly simply to combine by several parts, and presentation process mostly is teacher and manually completes.
In realizing process of the present invention, inventor finds that prior art at least exists following problem:
Because mostly being manually, presentation process completes, exist sometimes mechanical classroom teaching aid can not be continuously and demonstrate reposefully its motion, be unfavorable for that student understands the forms of motion that this machinery classroom teaching aid reflects, in addition, existing mechanical classroom teaching aid structure is simple, limitation student's thinking and creativity consciousness.
Summary of the invention
In order to solve in prior art the simple and presentation process of mechanical classroom teaching aid structure, mostly be the problem manually completing, the embodiment of the present invention provides a kind of mechanically operated classroom teaching aid.Described technical scheme is as follows:
The embodiment of the present invention a kind of mechanically operated classroom teaching aid, described teaching aid comprises: loose-leaf latch closure and be arranged on a plurality of page devices that described ring attachment is buckled, described page device comprises transparent housing and is arranged on the mechanical motion structure in described housing, and described in each, the mechanical motion structure of page device comprises one or more in actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism.
Particularly, described page device comprises described the first page device, the mechanical motion structure of described the first page device comprises the first actuating unit, transmission gear, first connecting rod, second connecting rod, third connecting rod, the 4th connecting rod, the 5th connecting rod, the 6th connecting rod, seven-link assembly and the 8th connecting rod
The gear shaft of described transmission gear is installed in rotation on the housing of described the first page device, described the first actuating unit and the engagement of described transmission gear, one end of described first connecting rod is fixed on described gear shaft, and the other end of described first connecting rod and the centre of described third connecting rod are hinged;
One end of one end of described second connecting rod and described the 4th connecting rod is fixed on the housing of described the first page device, the other end of described second connecting rod is hinged on one end of described third connecting rod, and described the 4th other end of connecting rod is, one end of the other end of described third connecting rod and described the 5th connecting rod is hinged; Described first connecting rod, described second connecting rod and described the 4th connecting rod are parallel and be positioned at the same side of described third connecting rod, described first connecting rod, described second connecting rod and described third connecting rod form a described double-crank mechanism, and described first connecting rod, described third connecting rod and described the 4th connecting rod form double-crank mechanism described in another;
The centre of described the 6th connecting rod is fixed on the housing of described the first page device, and one end of the other end of described the 5th connecting rod and described the 6th connecting rod is hinged, and described the 6th other end of connecting rod and one end of described seven-link assembly are hinged; Described the 4th connecting rod and described the 6th connecting rod are positioned at the same side of described the 5th connecting rod, and described the 4th connecting rod, described the 5th connecting rod and described the 6th connecting rod form a described crank and rocker mechanism;
One end of described the 8th connecting rod is fixed on the housing of described the first page device, and the other end of the other end of described seven-link assembly and described the 8th connecting rod is hinged; Described the 6th connecting rod and described the 8th connecting rod are positioned at the same side of described seven-link assembly, and described the 6th connecting rod, described seven-link assembly and described the 8th connecting rod form a described double rocker mechanism.
Particularly, described page device comprises the second page device, and the mechanical motion structure of described the second page device comprises the second actuating unit, driving gear, L-type bar, two linkage assemblys, telescopic mounting, small column, tooth bar, second transmission gear the second cam;
The housing of described the second page device comprises the first panel and the second panel be arrangeding in parallel, described the first panel is connected by side plate with described the second panel, described the second actuating unit comprises power gear, described the second actuating unit, described driving gear and described tooth bar are arranged on described the first panel, and described power gear and the engagement of described driving gear, one end of described two linkage assemblys is fixed on the rotation axis of described driving gear, described L-type bar comprises cross bar connected vertically and montant, the other end of described two linkage assemblys and one end of described cross bar are rotatably connected, the other end of described cross bar is connected with described montant, and the other end of described cross bar is provided with the second transmission gear, described the second transmission gear and the engagement of described tooth bar, described the second cam is fixed on described the second transmission gear, described telescopic mounting is connected with described montant, described small column is located on described telescopic mounting, described small column and described the second cam are tangent, described small column is provided with nib.
Particularly, the mechanical motion structure of described the second page device also comprises the chute being fixed on described the second panel, and described cross bar is arranged in described chute, and described chute is fixed on described the second panel.
Particularly, described two linkage assemblys comprise the first cross bar and the second cross bar, one end of described the first cross bar and the second cross bar is rotatably connected, and the other end of described the first cross bar and described L-type bar are rotatably connected, and the other end of described the second cross bar is fixed on the rotation axis of described driving gear.
Particularly, described page device comprises the 3rd page device, the mechanical motion structure of described the 3rd page device comprises the 3rd actuating unit and gear mechanism, described gear mechanism comprises the first outer rotor and the second outer rotor on the housing that is rotatably mounted to described the 3rd page device, with coaxial the 3rd outer rotor being connected of described the second outer rotor, the 9th connecting rod, the gear and the 5th outer rotor all round, described the first outer gear sleeve is located at the outside of described the 3rd actuating unit, and the inwall of described the first outer rotor is connected with the output terminal of described the 3rd actuating unit, described the second outer rotor and described the first outer rotor engagement, one end of described the 9th connecting rod is fixed on the rotation axis of described the second outer rotor, the other end of described the 9th connecting rod is fixed on described all round on the rotation axis of gear, described the 5th outer rotor be installed in rotation on the middle part of described the 9th connecting rod and described the 5th outer rotor respectively with described the 3rd outer rotor and described gear engagement all round.
Particularly, the mechanical motion structure of described the 3rd page device also comprises and the described coaxial the 6th outer rotor being connected of gear all round, and the radius of described the 6th outer rotor is greater than described radius of gear all round.
Particularly, described page device comprises Four Books page device, and the mechanical motion structure of described Four Books page device comprises the 4th actuating unit, the 4th gear train, crank and rocker mechanism, the first slide block mechanism, cam mechanism and the second slide block mechanism;
Described the 4th actuating unit is connected with described the 4th gear train, and described the 4th gear train comprises two output shafts;
The described crank and rocker mechanism of described Four Books page device comprises crank, the tenth connecting rod and rocking bar, one end of described crank is fixedly connected with a described output shaft of described the 4th gear train, the two ends of described the tenth connecting rod are hinged with the other end of described crank and one end of described rocking bar respectively, described in being hinged on, the other end of described rocking bar states on the housing of Four Books page device, the middle part of described rocking bar is connected with described the first slide block mechanism, described rocking bar is obtuse triangle structure, on three angles of described obtuse triangle structure, is respectively arranged with pin joint;
Described cam mechanism comprises four-cam, driven member and the 11 connecting rod, described in another of described four-cam and described the 4th gear train, output shaft is fixedly connected with, the edge of described four-cam and the edge contact of described driven member, one end of described driven member and described the 11 connecting rod is hinged, the middle part of described the 11 connecting rod is hinged on the housing of described Four Books page device, the other end of described the 11 connecting rod is connected with described the second slide block mechanism, described the 11 connecting rod is A shape structure, and the place, three summits of described A shape structure is respectively arranged with pin joint.
Particularly, the housing of described page device has front and back, described front is provided with picture, the described back side is provided with the word of knowledge point and the schematic diagram of described knowledge point for illustrating that described page device utilizes, and described picture is arranged on respectively on one or more in described double-crank mechanism, described double rocker mechanism, described crank and rocker mechanism, described cam mechanism, described gear mechanism.
Particularly, described actuating unit is clockwork spring.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: mechanically operated classroom provided by the invention teaching aid can turn round by mechanical mechanism, demonstration can be moved continuously, simultaneously, this classroom teaching aid structure is simply ingenious, easy and simple to handle, can show concisely the mechanical motion principle in teaching, improve the quality of teaching, this teaching aid is fixed in transparent box simultaneously, be convenient to observe intuitively the operation process of each mechanism, be convenient to student's divergent thinking and improve creativity consciousness, simultaneously, this mechanically operated classroom teaching aid material is merrily and lightheartedly convenient to deposit or carry, and cheap.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the side-looking structural representation of the mechanically operated classroom teaching aid that provides of the embodiment of the present invention;
Fig. 2 is the structural representation of the first page device of providing of the embodiment of the present invention;
Fig. 3 is the second page apparatus structure schematic diagram that the embodiment of the present invention provides;
Fig. 4 is the apparatus structure schematic diagram of the another kind of state of the second page device that provides of the embodiment of the present invention;
Fig. 5 is the 3rd page apparatus structure schematic diagram that the embodiment of the present invention provides;
Fig. 6 is the backsight structural representation of the Four Books page device that provides of the embodiment of the present invention;
Fig. 7 is the structural representation of facing of the Four Books page device that provides of the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
The embodiment of the present invention provides a kind of four-bar mechanism teaching aid, referring to Fig. 1, this teaching aid comprises: loose-leaf latch closure 14 and be arranged on a plurality of page devices on described loose-leaf latch closure 14, this page device comprises transparent housing and is arranged on the mechanical motion structure in housing, and the mechanical motion structure of each page device comprises one or more in actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism.
Particularly, page device comprises the first page device 11a, and the mechanical motion structure of this first page device 11a comprises the first actuating unit 1, transmission gear 2, first connecting rod 3, second connecting rod 4, third connecting rod 5, the 4th connecting rod 6, the 5th connecting rod 7, the 6th connecting rod 8, seven-link assembly 9 and the 8th connecting rod 10.
Particularly, the gear shaft of transmission gear 2 is installed in rotation on the housing of the first page device 11a, the first actuating unit 1 and transmission gear 2 engagements, one end of first connecting rod 3 is fixed on gear shaft, and the centre of the other end of first connecting rod 3 and third connecting rod 5 is hinged.
One end of one end of second connecting rod 4 and the 4th connecting rod 6 is fixed on the housing of the first page device 11a, the other end of second connecting rod 4 is hinged on one end of third connecting rod 5, and the other end of the other end of the 4th connecting rod 6, third connecting rod 5 and one end of the 5th connecting rod 7 are hinged.First connecting rod 3, second connecting rod 4 and the 4th connecting rod 6 are parallel and be positioned at the same side of third connecting rod 5, first connecting rod 3, second connecting rod 4 and third connecting rod 5 form a double-crank mechanism, and first connecting rod 3, third connecting rod 5 and the 4th connecting rod 6 form another double-crank mechanism.
The centre of the 6th connecting rod 8 is fixed on the housing of the first page device 11a, and one end of the other end of the 5th connecting rod 7 and the 6th connecting rod 8 is hinged, and the 6th other end of connecting rod 8 and one end of seven-link assembly 9 are hinged.The 4th connecting rod 6 and the 6th connecting rod 8 are positioned at the same side of the 5th connecting rod 7, and the 4th connecting rod 6, the 5th connecting rod 7 and the 6th connecting rod 8 form a crank and rocker mechanism.
It is upper that one end of the 8th connecting rod 10 is fixed on the first page device 11a, and the other end of the other end of seven-link assembly 9 and the 8th connecting rod 10 is hinged.The 6th connecting rod 8 and the 8th connecting rod 10 are positioned at the same side of seven-link assembly 9, and the 6th connecting rod 8, seven-link assembly 9 and the 8th connecting rod 10 form a double rocker mechanism.
In the present embodiment, the centre of a connecting rod refers on this connecting rod, to the equidistant position, two ends of this connecting rod.
Easily know, in four connecting rods, frame is fixed bar, and crank is the bar being connected with frame, and connecting rod is the bar not being connected with frame.The length condition of double-crank mechanism is less than or equal to the length sum of other two bar for stock and the length sum of quarter butt, and quarter butt is frame.The length condition of crank and rocker mechanism is less than or equal to the length sum of other two bar for stock and the length sum of quarter butt, and quarter butt is crank.The length condition of double rocker mechanism is less than or equal to the length sum of other two bar for stock and the length sum of quarter butt, and quarter butt is connecting rod.
Correspondingly, in the present embodiment, half length sum of first connecting rod 3 and third connecting rod 5 equals the length sum between one end of second connecting rod 4 and second connecting rod 4 and one end of first connecting rod 3, and the length between one end of second connecting rod 4 and one end of first connecting rod 3 is the shortest.Half length sum of first connecting rod 3 and third connecting rod 5 equals the length sum between one end of the 4th connecting rod 6 and the 4th connecting rod 6 and one end of first connecting rod 3, and the length between one end of the 4th connecting rod 6 and one end of first connecting rod 3 is the shortest.The length sum of the 4th connecting rod 6 and the 5th connecting rod 7 is less than one end of the 6th connecting rod 8 one half-sums the 4th connecting rod 6 and the length sum between the centre of the 6th connecting rod 8, and the length of the 4th connecting rod 6 is the shortest.The length sum of the 6th connecting rod 8 one half-sums the 8th connecting rod 10 is greater than the length sum between the centre of seven-link assembly 9 and the 6th connecting rod 8 and one end of the 8th connecting rod 10, and the length of seven-link assembly 9 is the shortest.
It should be noted that, the general more complicated of structure of clockwork spring, connecting rod is inconvenient to be arranged on clockwork spring, the structure of gear is more simple in structure than clockwork spring, connecting rod is easily installed on gear, therefore the present invention is by meshing clockwork spring and transmission gear, and connecting rod is arranged on transmission gear, realizes clockwork spring drive link and rotates.
First connecting rod 3, second connecting rod 4 and the 4th connecting rod 6 are parallel, and first connecting rod 3, second connecting rod 4 and third connecting rod 5 form a double-crank mechanism, and first connecting rod 3, third connecting rod 5 and the 4th connecting rod 6 form another double-crank mechanism.It is symmetrical as axis of symmetry that these two double-crank mechanisms be take first connecting rod 3, can prevent from occurring in process that second connecting rod 4 and the 4th connecting rod 6 circle under the drive of first connecting rod 3 stuck.
Particularly, one end of one end of second connecting rod 4, the 4th connecting rod 6, one end of the centre of the 6th connecting rod 8, the 8th connecting rod 10 be fixed by a pin on the housing of the first page device 11a (indicating with stain in Fig. 1).
In the present embodiment, one end of the centre of one end of one end of the gear shaft of transmission gear 2, second connecting rod 4, the 4th connecting rod 6, the 6th connecting rod 8, the 8th connecting rod 10, on same straight line, facilitates student the motion of the motion of the motion of double-crank mechanism, crank and rocker mechanism, double rocker mechanism to be observed intuitively simultaneously.Easily know, in other embodiments, one end of the gear shaft of transmission gear 2, second connecting rod 4, one end of the 4th connecting rod 6, the centre of the 6th connecting rod 8, one end of the 8th connecting rod 10 also can be on same straight lines, and the present invention is not restricted this.
Particularly, the first actuating unit 1 is clockwork spring.
Preferably, clockwork spring and the parallel engagement of transmission gear 2, to reduce the volume of teaching aid integral body.Easily know, in actual applications, clockwork spring and transmission gear 2 also can Vertical Meshing, can reach equally the object of transmitting the power of clockwork springs by transmission gear 2, and the present invention is not restricted this.
Alternatively, the number of teeth of clockwork spring is greater than the number of teeth of transmission gear 2, to reach the effect of increment.For example, the number of teeth of clockwork spring 1 is 20, and the number of teeth of transmission gear 2 is 15.
In the present embodiment, the length 40mm of first connecting rod 3, the length of second connecting rod 4 is 40mm, the length of third connecting rod 5 is 60mm, the length of the 4th connecting rod 6 is 40mm, the length of the 5th connecting rod 7 is 70mm, the length of the 6th connecting rod 8 is 130mm, the length of seven-link assembly 9 is 45mm, the length of the 8th connecting rod 10 is 80mm, distance between one end of one end of second connecting rod 4 and first connecting rod 3 is 30mm, distance between one end of one end of first connecting rod 3 and the 4th connecting rod 6 is 30mm, distance between the centre of one end of the 4th connecting rod 6 and the 6th connecting rod 8 is 60mm, distance between the centre of one end of the 6th connecting rod 8 and the 8th connecting rod 10 is 90mm.
Easily know, in other embodiments, the length of connecting rod and the distance between connecting rod also can be worth for other.Alternatively, the length 35-45mm of first connecting rod 3, the length of second connecting rod 4 is 35-45mm, the length of third connecting rod 5 is 50-70mm, the length of the 4th connecting rod 6 is 35-45mm, the length of the 5th connecting rod 7 is 65-75mm, the length of the 6th connecting rod 8 is 120-140mm, the length of seven-link assembly 9 is 40-50mm, the length of the 8th connecting rod 10 is 75-85mm, distance between one end of one end of second connecting rod 4 and first connecting rod 3 is 25-35mm, distance between one end of one end of first connecting rod 3 and the 4th connecting rod 6 is 25-35mm, distance between the centre of one end of the 4th connecting rod 6 and the 6th connecting rod 8 is 55-65mm, distance between the centre of one end of the 6th connecting rod 8 and the 8th connecting rod 10 is 85-95mm.
In a kind of implementation of the present embodiment; referring to Fig. 2; the housing of the first page device 11a comprises side plate 12 and four web joints 13 that connect the first page device 11a and side plate 12; the first page device 11a, side plate 12 and four web joints 14 are transparent; when connecting rod is protected, meet the requirement of directly motion of connecting rod being observed.
Alternatively, the housing of the first page device 11a forms a closed interval, prevents that the parts in the teaching aid of classroom are damaged.
Particularly, the length of enclosure space can be 400mm-420mm, and the width of closed interval can be 287-307mm, and the thickness of closed interval can be 10-20mm.
Alternatively, first connecting rod 3, second connecting rod 4, third connecting rod 5, the 4th connecting rod 6, the 5th connecting rod 7, the 6th connecting rod 8, seven-link assembly 9 and the 8th connecting rod 10 are plastic bar, the housing of the first page device 11a is plastic plate, alleviated the weight of teaching aid, reduce the cost of teaching aid, improved the convenience that teaching aid carries.
Preferably, this teaching aid also comprises cosmic background picture, moon picture, cosmonaut's picture and spacecraft picture, cosmic background picture sticks on side plate 12, moon picture sticks on transmission gear 2, cosmonaut's picture sticks on one end of the 6th connecting rod 8, spacecraft picture sticks on the other end of the 8th connecting rod 10, improves the interest of teaching.
Preferably, on the first page device 11a, be carved with the word of knowledge point and the schematic diagram of this knowledge point for illustrating that teaching aid utilizes, facilitate teacher to carry out the explanation of knowledge point.
Simply introduce the principle of work of four-bar mechanism teaching aid provided by the invention below:
After upper clockwork spring, clockwork spring rotates, and drives transmission gear 2 with the external tooth engagement of the clockwork spring moving axis that rotates to rotate, and then the first connecting rod 3 that drives one end to be fixed on the gear shaft of transmission gear 2 circles around gear shaft.Moon picture sticks on transmission gear 2, and student can see through transparent side plate 12 and see that the moon circles.
First connecting rod 3, second connecting rod 4 and third connecting rod 5 form a double-crank mechanism, first connecting rod 3, third connecting rod 5 and the 4th connecting rod 6 form another double-crank mechanism, and first connecting rod 3 drives respectively second connecting rod 4 and the 4th connecting rod 6 to circle by third connecting rod 5.Student can see through the housing of the first transparent page device 11a the motion of double-crank mechanism.Wherein, on second connecting rod 4, can paste moon picture.
The 4th connecting rod 6, the 5th connecting rod 7 and the 6th connecting rod 8 form a crank and rocker mechanism, and the 4th connecting rod 6 drives the 6th connecting rod 8 reciprocating by the 5th connecting rod 7.Cosmonaut's picture sticks on one end of the 6th connecting rod 8, and student can see through transparent side plate 12 and see that cosmonaut is reciprocating, and the housing that sees through the first transparent page device 11a is seen the motion of crank and rocker mechanism.
The 6th connecting rod 8, seven-link assembly 9 and the 8th connecting rod 10 form a double rocker mechanism, and the 6th connecting rod 8 drives the 8th connecting rod 10 reciprocating by seven-link assembly 9.Spacecraft picture sticks on the other end of the 8th connecting rod 10, and student can see through transparent side plate 12 and see that spacecraft is reciprocating, and the housing that sees through the first transparent page device 11a is seen the motion of double rocker mechanism.
The embodiment of the present invention is synthesized together double-crank mechanism, crank and rocker mechanism, double rocker mechanism by the first page device providing, and is convenient for carrying.And, adopt clockwork spring to drive the motion of double-crank mechanism, crank and rocker mechanism, double rocker mechanism simultaneously, teaching process is time saving and energy saving.
Particularly, referring to Fig. 2 and Fig. 3, page device comprises the second page device 11b, and the mechanical motion structure of the second page device 11b comprises the second actuating unit propulsion system 22, driving gear 23, L-type bar 24, two linkage assemblys 25, telescopic mounting 26, small column 27, tooth bar 28, the second transmission gear 29 and the second cam 30;
The housing of the second page device 11b comprises the first panel and the second panel be arrangeding in parallel, the first panel is connected by side plate with the second panel, the second propulsion system 22 comprise power gear 22a, the second propulsion system 22, driving gear 23 and tooth bar 28 are arranged on the first panel, and the second power gear 22a and driving gear 23 engagements, one end of two linkage assemblys 25 is fixed on the rotation axis of driving gear 23, L-type bar 24 comprises cross bar 241 connected vertically and montant 242, one end of the other end of two linkage assemblys 25 and cross bar 241 is rotatably connected, the other end of cross bar 241 is connected with montant 242, and the other end of cross bar 241 is provided with the second transmission gear 29, the second transmission gear 29 and tooth bar 28 engagements, the second cam 30 is fixed on the second transmission gear 29, telescopic mounting 26 is connected with montant 242, small column 27 is located on telescopic mounting 26, small column 27 and the second cam 30 are tangent, small column 27 is provided with nib.
In the present embodiment, the second actuating unit 22 comprises clockwork spring, and clockwork spring is connected with power gear 22a.In other embodiments, this second actuating unit 22 can also be comprised of equipment such as electro-motors.
Further, this classroom teaching aid also comprises chute 24a, and the mechanical motion structure of the second page device 11b also comprises the chute 24a being fixed on the second panel, and cross bar 241 is arranged in chute 24a.
Referring to Fig. 2 and Fig. 3, two linkage assemblys 25 comprise the first cross bar 252 and the second cross bar 251, one end of the first cross bar 252 and the second cross bar 251 is rotatably connected, the other end of the first cross bar 252 and L-type bar 24 are rotatably connected, and the other end of the second cross bar 251 is fixed on the rotation axis of driving gear 23.
In addition, in the present embodiment, above-mentioned nib can also be close to the second panel, so that nib can be drawn on the second panel.
When the second actuating unit 22 is opened, drive driving gear 23 to rotate, driving gear 23 drives L-type bar 24 to slidably reciprocate in chute 4a by two linkage assemblys 25, correspondingly, the second transmission gear 29 back and forth movement on tooth bar 28, when transmission gear 29 rotates, the second cam 30 also rotates, because the second cam 30 is tangent with small column 27, therefore, small column 27 can move along the montant 242 of L-type bar 24, and in another direction, small column 27 also can be along with cross bar 241 motions of L-type bar 24, therefore in this motion process, the movement locus of small column 27 is cam profile curves.Nib is set on small column 27 and this cam profile curve can be depicted on the second transparent panel, for observing, learn and research, for example, calculate cam profile curve equation.
In the present embodiment, the first panel and the second panel are glass plastic panel.Adopting glass plastic to make the box of teaching aid can weight reduction, is convenient for carrying and moves, and cost is low.
In the present embodiment, telescopic mounting 26 can be sleeve, and sleeve is connected slidably with montant 242.
In other embodiments, telescopic mounting 26 can also be spring assembly, and spring assembly is connected with montant 242.
When specific implementation, propulsion system 22 and driving gear 23 are arranged on the first panel by web member, and web member comprises screw bolt and nut.
When specific implementation, chute 24a can stick on the second panel by glue.
Further, on the second panel, can also print the knowledge point relevant to cam profile curve, during convenient this teaching aid of observation, learn, allow mechanical classroom be full of vividness and artistry.
Further, can also the gear in this teaching aid on paste picture, to strengthen the aesthetic measure of teaching aid, particularly, this picture sticks on small column 27 by slender axles.
The embodiment of the present invention meshes by power gear and the driving gear of the second actuating unit, L-type bar comprises cross bar connected vertically and montant, one end of two linkage assemblys is fixed on the rotation axis of driving gear, the other end of two linkage assemblys and one end of cross bar are rotatably connected, the other end of cross bar is connected with montant, during propulsion system work, drive driving gear to rotate, driving gear drives L-type bar slidably reciprocating by two linkage assemblys, and the other end of cross bar is also provided with transmission gear, the engagement of driving cog wheel and rack, so transmission gear back and forth movement on tooth bar, because the second cam is fixed on transmission gear, so when transmission gear rotates, the second cam also rotates, due to the second cam and small column tangent, therefore, small column can move along the montant of L-type bar, and in another direction, small column also can be along with the beam movement of L-type bar, in this motion process, the movement locus of small column is a cam profile curve, nib is set on small column can be depicted this cam profile curve, for observing, study and research, this teaching aid is not only vivid, easy to use and carry, and cost is low, allow mechanical classroom be full of vividness and artistry.
Referring to Fig. 4 and Fig. 5, page device comprises the 3rd page device 11c, the mechanical motion structure of the 3rd page device 11c comprises the 3rd actuating unit 301 and gear mechanism, this gear mechanism comprises the first outer rotor 31 and the second outer rotor 32 on the housing that is rotatably mounted to the 3rd page device 11c, with coaxial the 3rd outer rotor 33 being connected of the second outer rotor 32, the 9th connecting rod 304, the gear 34 and the 5th outer rotor 35 all round, the first outer rotor 31 is set in the outside of the 3rd actuating unit 301, and the inwall of the first outer rotor 31 is connected with the output terminal of the 3rd actuating unit 301, the second outer rotor 32 and the first outer rotor 31 engagements, one end of the 9th connecting rod 304 is fixed on the rotation axis of the second outer rotor 32, the other end of the 9th connecting rod 304 is fixed on all round on the rotation axis of gear, the 5th outer rotor 35 be installed in rotation on the middle part of the 9th connecting rod 304 and the 5th outer rotor 35 respectively with the 3rd outer rotor 33 and gear 34 engagements all round.
Alternatively, the radius of the 3rd outer rotor 33 is less than the radius of the second outer rotor 32.If the second outer rotor 32 is identical with the radius of the 3rd outer rotor 33, a gear can shelter from another gear, is inconvenient to observe the coaxial transmission of gear.
Preferably, the mechanical motion structure of the 3rd page device 11c also comprise with all round the radius of coaxial the 6th outer rotor 36, the six outer rotors 36 that are connected of gear 34 be greater than radius of gear 34 all round.The 6th outer rotor 36 along with all round gear 34 together around the rotation axis rotation of the second outer rotor 32, and, the 3rd outer rotor 33 rotates the 5th outer rotor 35 driving with its engagement and rotates, the 5th outer rotor 35 drives gear 34 rotations all round with its engagement, gear 34 drives six outer rotor 36 rotations coaxial with it all round, i.e. gear 34, the 5th outer rotor 35, the also rotation in the rotation axis turnover around the second outer rotor 32 of the 6th outer rotor 36 all round.
Further, the mechanical motion structure of the 3rd page device 11c also comprises the annular wheel 37 with the 6th outer rotor 36 engagements, the 3rd outer rotor 33 and the length of the 9th connecting rod 304 that gear 34 is connected all round and the radius sum of the 6th outer rotor 36, equal in length with the radius of annular wheel 37, the rotation of the 6th outer rotor 36, drives annular wheel 37 rotations with its engagement.
Preferably, the first outer rotor 31, the second outer rotor 32, the 3rd outer rotor 33, all round on the surface of gear 34, the 5th outer rotor 35, the 6th outer rotor 36 and annular wheel 37 along gear be radially equipped with mark line, mark line is straight line.When the ratio of gear calculating between gear, with the scale mark of T-shaped chi and the center of circle of tested gear, to align, align with T-shaped chi scale mark in protractor plane one end.When gear does not rotate, then carry out measurement of angle.Angle before rotation is the angle of angle between mark line and scale mark, angle after rotation stops is the angle of angle between mark line and scale mark, angle+the number of turns * before the angle-rotation of the rotational angle=rotation of gear after stopping is 360 °, rotational angle/the rotation time of the angular velocity=gear of gear, ratio of gear is the ratio of the angular velocity of gear.
Alternatively, the first outer rotor 31, the second outer rotor 32, the 3rd outer rotor 33, all post picture in the surface of gear 34, the 5th outer rotor 35, the 6th outer rotor 36 and annular wheel 37 all round.On the surface of gear, paste picture, make teaching aid more attractive in appearance.
Particularly, picture is gear picture or celestial body picture.For example, can on the first outer rotor 31, the second outer rotor 32, the 3rd outer rotor 33 and annular wheel 37, paste fixed star picture, sticks planet picture on gear, the 5th outer rotor and the 6th outer rotor 36 all round, so, by the forms of motion between all right demonstrating planet of this gear teaching aid.
Alternatively, the first outer rotor 31, the second outer rotor 32, the 3rd outer rotor 33, gear 34, the 5th outer rotor 35, the 6th outer rotor 36 and annular wheel 37 are plastic gear all round.Plastic gear quality is slim and graceful, be easy to carry, and cost is low.
Particularly, the housing of the 3rd page device 11c can be transparent boxes.More specifically, the housing of the 3rd page device 11c can for A3 paper size, thickness is 10～20nm.The housing of the 3rd transparent page device 11c can conveniently be observed the motion of gear from the arbitrary face of framework.
Optionally, the housing of the 3rd page device 11c can be plastic frame, and plastic frame quality is slim and graceful, be easy to carry, and cost is low.
Particularly, the 3rd actuating unit 301 can be clockwork spring.
The course of work below by gear teaching aid illustrates a kind of gear teaching aid that the embodiment of the present invention provides.
Give clockwork spring energetically, clockwork spring drives the first outer rotor 31 rotations, rotate with the second outer rotor 32 of the first outer rotor 31 engagements thereupon, three outer rotor 33 rotations coaxial with the second outer rotor 32, and by the 9th connecting rod 304, drive the gear 34 all round, the 5th outer rotor 35 is around the rotation axis rotation of the second outer rotor 32, simultaneously, the rotation of the 3rd outer rotor 33 drives with the 5th outer rotor 35 of its engagement and rotates, gear 34 and the 5th outer rotor 35 engagements all round, all round gear 34 also rotate, the 6th outer rotor 36 is with gear 34 is coaxial all round, the 6th outer rotor 36 is along with the also rotation when gear 34 is around the rotation axis rotation of the second outer rotor 32 all round, the 6th outer rotor 36 drives annular wheel 37 rotations with the 6th outer rotor 36 engagements.
The embodiment of the present invention provides the 3rd page device to drive the first outer rotor to rotate by clockwork spring, the first outer rotor rotates the second outer rotor driving with its engagement and rotates, the second outer rotor driven by rotating wheel three outer rotor coaxial with it rotates, by the 9th connecting rod, drive the gear and the 5th outer rotor rotate around the rotation axis of the second outer rotor all round simultaneously, due to the 5th outer rotor respectively with the 3rd outer rotor and the gear engagement all round, the 3rd outer rotor rotates and to drive the gear and the 5th outer rotor autobiography all round simultaneously, thereby can demonstrate visually the motion of gear, transmission between the gear being meshed, the transmission of in-line gears, the motion of the 9th connecting rod and transmission, and clockwork spring and gear are located in framework, be convenient to carrying of gear teaching aid, this gear teaching aid structure is simple, replacing easy to assemble, all round gear, the 5th outer rotor be connected by the 9th connecting rod with the 3rd outer rotor, demonstrated gear drive and the 9th link transmission visual in imagely.
By clockwork spring, drive the first outer rotor to rotate, the first outer rotor rotates the second outer rotor driving with its engagement and rotates, the second outer rotor driven by rotating wheel three outer rotor coaxial with it rotates, by the 9th connecting rod, drive the gear and the 5th outer rotor rotate around the rotation axis of the second outer rotor all round simultaneously, due to the 5th outer rotor respectively with the 3rd outer rotor and the gear engagement all round, the 3rd outer rotor rotates and to drive the gear and the 5th outer rotor autobiography all round simultaneously, thereby can demonstrate visually the motion of gear, transmission between the gear being meshed, the transmission of in-line gears, the motion of the 9th connecting rod and transmission, and clockwork spring and gear are located in framework, be convenient to carrying of gear teaching aid, this gear teaching aid structure is simple, replacing easy to assemble.
Referring to Fig. 6 and Fig. 7, page device comprises Four Books page device 11d, and the mechanical motion structure of Four Books page device 11d comprises the 4th actuating unit 41, the 4th gear train 42, crank and rocker mechanism 43, the first slide block mechanism 44, cam mechanism 45 and the second slide block mechanism 46.
Particularly, the 4th actuating unit 41 is connected with the first gear 421, for the 4th gear train 42 provides power, the 4th gear train 42 is connected with crank and rocker mechanism 43 and cam mechanism 45 respectively, for receiving power and driving crank and rocker mechanism 43 and cam mechanism 45 runnings; The second gear 422 is driven by the first gear 421, is respectively the Liang Chu branch offices being driven by the 3rd gear 423 and the 4th gear 424 power is provided; The gear of the 4th gear train 42 is all fixed on the housing of Four Books page device 11d, the stability of the 4th gear train 42 while having guaranteed the present embodiment teaching aid overall operation.
Particularly, the housing of Four Books page device 11d comprises side panel and the web joint that connects side panel, and side panel and web joint are all transparent engineering plastic flitch.The housing of Four Books page device 11d is photo frame structure, from the end face of the housing of Four Books page device 11d, can observe the motion conditions of the first slide block mechanism 44 and the second slide block mechanism 46, from the bottom surface of the housing of Four Books page device 11d, can observe the movement locus of above-mentioned each mechanism, the simple and clear motion principle of having shown intuitively complex mechanism, can improve the quality of teaching; Meanwhile, adopt engineering plastic flitch as the material of the housing of Four Books page device 11d, make teaching aid overall price cheap and be convenient for carrying.
The 4th actuating unit 41 is connected with the 4th gear train 42, and the 4th gear train 42 comprises two output shafts.
Particularly, the 4th actuating unit 41 is for providing power to the 4th gear train 42.As shown in Figure 3-4, actuating unit 21 can be clockwork spring.The core texture of clockwork spring is plane scroll spring.Plane scroll spring is again clockwork spring, and clockwork spring can form rotating torque in the plane perpendicular to axle, so as to storage power.After outer bound pair clockwork spring acting, the merit of this part is just converted to the elastic deformation energy of clockwork spring, and when clockwork spring is worked, the elastic deformation energy of clockwork spring discharges again gradually, drives the 4th gear train 42 running actings.Easily know, be not limited to use clockwork spring as the 4th actuating unit 41 of the present embodiment herein, can also use as motor, rocking bar equal power device or other forms of power source.
The 4th gear train 42 comprises the first gear 421, the second gear 422, the 3rd gear 423 and the 4th gear 424, the first gear 421 is connected with the 4th actuating unit 41 and meshes with the second gear 422, the second gear 422 meshes with the 3rd gear 423 and the 4th gear 424 respectively, the 3rd gear 423 is fixedly connected with by an output shaft with one end of crank 431, and the 4th gear 424 is fixedly connected with by another output shaft with four-cam 451.
The crank and rocker mechanism 43 of Four Books page device 11d comprises crank 431, the tenth connecting rod 432 and rocking bar 433, one end of crank 431 is fixedly connected with an output shaft of the 4th gear train 42, the two ends of the tenth connecting rod 432 are hinged with the other end of crank 431 and one end of rocking bar 433 respectively, it is upper that the other end of rocking bar 433 is hinged on Four Books page device 11d, and the middle part of rocking bar 433 is connected with the first slide block mechanism 44; Rocking bar 433 is obtuse triangle structure, on three angles of obtuse triangle structure, is respectively arranged with pin joint.
Particularly, one end of crank 431 is connected with the 3rd gear 423 of the 4th gear train 42, the 3rd gear 423 can drive one end that crank 431 is connected with the tenth connecting rod 432 around the 3rd gear 423 center rotatings while rotating, because one end of rocking bar 433 fixes on the housing of Four Books page device 11d by hinges fixing, so can drive rocking bars 433 do oscillating traverse motion via the tenth connecting rod 432 when crank 432 rotates.
Particularly, in blunt three-legged structure the pin joint of one end, obtuse angle for the 12 connecting rod 441 of hinged rocking bar 433 and the first slide block mechanism 44, under the prerequisite of saving material, can avoid the tenth connecting rod 432 motion processes in the 12 connecting rod 441 generation interference and collisions; The hinged end of the nearly rocking bar 433 of obtuse angle termination and the tenth connecting rod 432, makes the tenth connecting rod 432 can in motion process, drive the 12 connecting rod 441 to produce larger displacement, impels the mechanical motion of the first slide block mechanism 44 more obvious.
Cam mechanism 45 comprises four-cam 451, driven member 452 and the 11 connecting rod 453, four-cam 451 is fixedly connected with another output shaft of the 4th gear train 42, the edge contact of the edge of four-cam 451 and driven member 452, one end of driven member 452 and the 11 connecting rod 453 is hinged, the middle part of the 11 connecting rod 453 is hinged on the housing of Four Books page device 11d, the other end of the 11 connecting rod 453 is connected with the second slide block mechanism 46, the A shape structural top closed angle end of the 11 connecting rod 453 is the pin joint with fixed bin as the 11 connecting rod 453, can move in the same way as the bottom end of A shape structure at the 11 connecting rod 453 all the other two ends, under guaranteeing each structural member motion state, in interference and collision, do not saved space.
Particularly, the axle of four-cam 451 is connected with the axle of the 4th gear 424 of the 4th gear train 42, when rotating, the 4th gear 424 rotates together, due to the contour curve of four-cam 451, only some is circular arc, so when four-cam 451 rotates, intermittent the moving back and forth of driven member 452 meeting contacting with four-cam 451, the middle part of the 11 connecting rod 453 fixes on the housing of Four Books page device 11d by hinges fixing, when the one end being connected with driven member 452 at the 11 connecting rod 453 moves back and forth, the other end of the 12 connecting rod 453 is done intermittent oscillating traverse motion.In the present embodiment, driven member 452 is small column shape, can increase the area that driven member 452 contacts with four-cam 451, can more stably make driven member 452 move with four-cam 451; Easily know, do not limit the shape of driven member 452 herein, also can use the parts of little ball or other shapes to contact with four-cam 451.
Further, the 11 connecting rod 453 is A shape structure, and the place, three summits of A shape structure is respectively arranged with pin joint.
The first slide block mechanism 44 comprises the 12 connecting rod 441, the first slide block 442 and the first guide rail 443, one end of the 12 connecting rod 441 and rocking bar 433 are hinged, the other end of the 12 connecting rod 441 and the first slide block 442 are hinged, and the first slide block 442 is placed on the first guide rail 443.
Further, be provided with C shape groove on the first guide rail 443, the first slide block 442 is placed in C shape groove.
Particularly, the first guide rail 443 is fixed on Four Books page device 11d, one end of the 12 connecting rod 441 is hinged on the centre of rocking bar 433, when rocking bar 433 is done oscillating traverse motion, can on the first guide rail 443, slide by the 12 connecting rod 441 band movable sliders 442, due to the position-limiting action of C shape groove, slide block 442 can only move reciprocatingly but can getaway in C shape groove, easily know, be not limited to arrange C shape groove herein, the groove as U-lag etc. with position-limiting action can also be set; On the other hand, groove can also be arranged on the first slide block 442, on the first guide rail 443, is equipped with outstanding slideway, and now the first slide block 442 equally can to-and-fro movement smoothly on the first guide rail 443; Can bonding picture on the first slide block 442, when teaching aid overall operation, can form dynamic running orbit figure, impel teaching process more to there is vividness.
The second slide block mechanism 46 comprises the 13 connecting rod 461, the second slide block 462 and the second guide rail 463, one end of one end of the 4th connecting rod 461 and second connecting rod 453 is hinged, the other end of the 13 connecting rod 461 and the second slide block 462 are hinged, and the second slide block 462 is placed on the second guide rail 463.
Further, be provided with C shape groove on the second guide rail 463, the second slide block 462 is placed in C shape groove.
Particularly, one end of the 13 connecting rod 461 is hinged on one end of the 12 connecting rod 453, when the 12 connecting rod 453 is done intermittent oscillating traverse motion, can on the second guide rail 463, slide by the 13 connecting rod 461 band movable sliders 462, due to the position-limiting action of C shape groove, slide block 462 can only be done intermittent to-and-fro movement but can getaway in C shape groove, easily knows, be not limited to arrange C shape groove herein, the groove as U-lag etc. with position-limiting action can also be set; On the other hand, groove can also be arranged on the second slide block 462, on the second guide rail 463, is equipped with outstanding slideway, and now the second slide block 462 equally can to-and-fro movement smoothly on the second guide rail 463; On the second slide block 462, the first slide block 442 and the 3rd gear 423, can distinguish bonding picture, when teaching aid overall operation, can form dynamic running orbit figure, impel teaching process more to there is vividness.
The teaching aid that the present embodiment provides before use, can make in advance clockwork spring storage elasticity deformation energy, discharge in use the energy of the 4th actuating unit 41, make clockwork spring drive the 4th gear train running, in the present embodiment, the 4th gear train 42 can drive two groups of mechanical operation simultaneously, first group is comprised of crank and rocker mechanism 43 and the first slide block mechanism 44, and in the situation that teaching aid turns round, the first slide block 442 moves reciprocatingly on the first guide rail 443; Second group is comprised of cam mechanism 45 and the second slide block mechanism 46, and in the situation that teaching aid turns round, the second slide block 462 is done intermittent to-and-fro movement on the second guide rail 463.
The Four Books page device of the teaching aid that the present embodiment provides is plane mechanism, degree of freedom (number of the self-movement that in mechanism can there be with respect to frame each member) that can Calculation Plane mechanism according to this teaching aid, computing formula is F=3n-(2PL+Ph), wherein, n is movable part number, PL is lower pair constraint number, and Ph is higher pair constraint number.Simultaneously, according to all right manufacturing mechanism kinematic sketch of this teaching aid, specifically a kind of according to the motion size of mechanism, chi is made the position of each kinematic pair according to a certain percentage, simple lines and symbology member and the kinematic pair of the international regulation of Bing Yong, the accurately simple and clear figure of outgoing mechanism motion feature.Mechanism is that the degree of freedom of Calculation Plane mechanism can help analysis and design mechanism for transmitting the mechanical hook-up of motion and power or change forms of motion, conventionally requiring mechanism to have definite relative motion; Manufacturing mechanism kinematic sketch can reflect annexation and the kinematic relation between each member intuitively, and very useful to helping student to understand knowledge point in teaching, the teaching aid that the present embodiment provides has preferably facilitation to the lifting of quality of instruction.
The Four Books page device that the embodiment of the present invention provides adopts the 4th actuating unit, the 4th gear train to drive other mechanical mechanism runnings, apparatus structure is simply ingenious, easy and simple to handle, can show concisely the mechanical motion principle in teaching, improve the quality of teaching, this teaching aid is fixed in transparent box simultaneously, is convenient to observe intuitively the operation process of each mechanism, is convenient to deposit or carry simultaneously, box is made by transparent engineering plastic flitch, and material is slim and graceful, cheap.
Particularly, referring to Fig. 1, this mechanically operated classroom teaching aid can also comprise cover 14a, and this loose-leaf latch closure 14 is fixed on cover 14a.
It should be noted that, in the present embodiment, page device comprises aforementioned first to fourth page device, but is not limited in first to fourth page device, and the mechanical motion structure in page device can adopt other array configuration.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a mechanically operated classroom teaching aid, it is characterized in that, described teaching aid comprises: loose-leaf latch closure (14) and be arranged on a plurality of page devices on described loose-leaf latch closure (14), described page device comprises transparent housing and is arranged on the mechanical motion structure in described housing, and described in each, the mechanical motion structure of page device comprises one or more in actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism.
2. classroom according to claim 1 teaching aid, it is characterized in that, described page device comprises the first page device (11a), the mechanical motion structure of described the first page device (11a) comprises the first actuating unit (1), transmission gear (2), first connecting rod (3), second connecting rod (4), third connecting rod (5), the 4th connecting rod (6), the 5th connecting rod (7), the 6th connecting rod (8), seven-link assembly (9) and the 8th connecting rod (10)
The gear shaft of described transmission gear (2) is installed in rotation on the housing of described the first page device (11a), described the first actuating unit (1) and described transmission gear (2) engagement, one end of described first connecting rod (3) is fixed on described gear shaft, and the centre of the other end of described first connecting rod (3) and described third connecting rod (5) is hinged;
One end of one end of described second connecting rod (4) and described the 4th connecting rod (6) is fixed on the housing of described the first page device (11a), the other end of described second connecting rod (4) is hinged on one end of described third connecting rod (5), and the other end of the other end of described the 4th connecting rod (6), described third connecting rod (5) and one end of described the 5th connecting rod (7) are hinged; Described first connecting rod (3), described second connecting rod (4) and described the 4th connecting rod (6) are parallel and be positioned at the same sides of described third connecting rod (5), described first connecting rod (3), described second connecting rod (4) and described third connecting rod (5) form a described double-crank mechanism, and described first connecting rod (3), described third connecting rod (5) and described the 4th connecting rod (6) form double-crank mechanism described in another;
The centre of described the 6th connecting rod (8) is fixed on the housing of described the first page device (11a), one end of the other end of described the 5th connecting rod (7) and described the 6th connecting rod (8) is hinged, and described the 6th other end of connecting rod (8) and one end of described seven-link assembly (9) are hinged; Described the 4th connecting rod (6) and described the 6th connecting rod (8) are positioned at the same side of described the 5th connecting rod (7), and described the 4th connecting rod (6), described the 5th connecting rod (7) and described the 6th connecting rod (8) form a described crank and rocker mechanism;
One end of described the 8th connecting rod (10) is fixed on the housing of described the first page device (11a), and the other end of the other end of described seven-link assembly (9) and described the 8th connecting rod (10) is hinged; Described the 6th connecting rod (8) and described the 8th connecting rod (10) are positioned at the same side of described seven-link assembly (9), and described the 6th connecting rod (8), described seven-link assembly (9) and described the 8th connecting rod (10) form a described double rocker mechanism.
3. classroom according to claim 1 teaching aid, it is characterized in that, described page device comprises the second page device (11b), and the mechanical motion structure of described the second page device (11b) comprises the second actuating unit (22), driving gear (23), L-type bar (24), two linkage assemblys (25), telescopic mounting (26), small column (27), tooth bar (28), the second transmission gear (29) second cams (30);
The housing of described the second page device (11b) comprises the first panel and the second panel be arrangeding in parallel, described the first panel is connected by side plate with described the second panel, described the second actuating unit (22) comprises power gear (22a), described the second actuating unit (22), described driving gear (23) and described tooth bar (28) are arranged on described the first panel, and described power gear (22a) and described driving gear (23) engagement, one end of described two linkage assemblys (25) is fixed on the rotation axis of described driving gear (23), described L-type bar (24) comprises cross bar connected vertically (241) and montant (242), one end of the other end of described two linkage assemblys (25) and described cross bar (241) is rotatably connected, the other end of described cross bar (241) is connected with described montant (242), and the other end of described cross bar (241) is provided with the second transmission gear (29), described the second transmission gear (29) and described tooth bar (28) engagement, described the second cam (30) is fixed on described the second transmission gear (29), described telescopic mounting (26) is connected with described montant (242), described small column (27) is located on described telescopic mounting (26), described small column (27) is tangent with described the second cam (30), described small column (27) is provided with nib.
4. classroom according to claim 3 teaching aid, it is characterized in that, the mechanical motion structure of described the second page device (11b) also comprises the chute (24a) being fixed on described the second panel, and described cross bar (241) is arranged in described chute (24a).
5. classroom according to claim 3 teaching aid, it is characterized in that, described two linkage assemblys (25) comprise the first cross bar (252) and the second cross bar (251), one end of described the first cross bar (252) and the second cross bar (251) is rotatably connected, the other end of described the first cross bar (252) and described L-type bar (24) are rotatably connected, and the other end of described the second cross bar (251) is fixed on the rotation axis of described driving gear (23).
6. classroom according to claim 1 teaching aid, it is characterized in that, described page device comprises the 3rd page device (11c), the mechanical motion structure of described the 3rd page device (11c) comprises the 3rd actuating unit (301) and gear mechanism, described gear mechanism comprises the first outer rotor (31) and the second outer rotor (32) on the housing that is rotatably mounted to described the 3rd page device (11c), with coaxial the 3rd outer rotor (33) being connected of described the second outer rotor (32), the 9th connecting rod (304), the gear (34) and the 5th outer rotor (35) all round, described the first outer rotor (31) is set in the outside of described the 3rd actuating unit (301), and the inwall of described the first outer rotor (31) is connected with the output terminal of described the 3rd actuating unit (301), described the second outer rotor (32) and described the first outer rotor (31) engagement, one end of described the 9th connecting rod (304) is fixed on the rotation axis of described the second outer rotor (32), the other end of described the 9th connecting rod (304) is fixed on described all round on the rotation axis of gear (34), described the 5th outer rotor (35) be installed in rotation on the middle part of described the 9th connecting rod (304) and described the 5th outer rotor (35) respectively with described the 3rd outer rotor (33) and described gear (34) engagement all round.
7. classroom according to claim 6 teaching aid, it is characterized in that, the mechanical motion structure of described the 3rd page device (11c) also comprises and the described coaxial the 6th outer rotor (36) being connected of gear (34) all round, and the radius of described the 6th outer rotor (36) is greater than described radius of gear (34) all round.
8. classroom according to claim 1 teaching aid, it is characterized in that, described page device comprises Four Books page device (11d), and the mechanical motion structure of described Four Books page device (11d) comprises the 4th actuating unit (41), the 4th gear train (42), crank and rocker mechanism (43), the first slide block mechanism (44), cam mechanism (45) and the second slide block mechanism (46);
Described the 4th actuating unit (41) is connected with described the 4th gear train (42), and described the 4th gear train (42) comprises two output shafts;
The described crank and rocker mechanism (43) of described Four Books page device (11d) comprises crank (431), the tenth connecting rod (432) and rocking bar (433), one end of described crank (431) is fixedly connected with a described output shaft of described the 4th gear train (42), the two ends of described the tenth connecting rod (432) are hinged with the other end of described crank (431) and one end of described rocking bar (433) respectively, described in being hinged on, the other end of described rocking bar (433) states on the housing of Four Books page device (11d), the middle part of described rocking bar (433) is connected with described the first slide block mechanism (44), described rocking bar (433) is obtuse triangle structure, on three angles of described obtuse triangle structure, be respectively arranged with pin joint,
Described cam mechanism (45) comprises four-cam (451), driven member (452) and the 11 connecting rod (453), described in another of described four-cam (451) and described the 4th gear train (42), output shaft is fixedly connected with, the edge contact of the edge of described four-cam (451) and described driven member (452), described driven member (452) is hinged with one end of described the 11 connecting rod (453), the middle part of described the 11 connecting rod (453) is hinged on the housing of described Four Books page device (11d), the other end of described the 11 connecting rod (453) is connected with described the second slide block mechanism (46), described the 11 connecting rod (453) is A shape structure, the place, three summits of described A shape structure is respectively arranged with pin joint.
9. according to classroom teaching aid described in claim 1-8 any one, it is characterized in that, the housing of described page device has front and back, described front is provided with picture, the described back side is provided with the word of knowledge point and the schematic diagram of described knowledge point for illustrating that described page device utilizes, and described picture is arranged on respectively on one or more in described double-crank mechanism, described double rocker mechanism, described crank and rocker mechanism, described cam mechanism, described gear mechanism.
10. according to the classroom teaching aid described in claim 1-8 any one, it is characterized in that, described actuating unit is clockwork spring.
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| CN201410163631.5A CN104008695B (en) | 2014-04-22 | 2014-04-22 | A kind of demonstration mechanically operated classroom teaching aid |
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| CN201410163631.5A CN104008695B (en) | 2014-04-22 | 2014-04-22 | A kind of demonstration mechanically operated classroom teaching aid |
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| CN104008695B CN104008695B (en) | 2016-08-31 |
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| CN105725600A (en) * | 2016-04-06 | 2016-07-06 | 汤贵春 | Multi-card continuous display device and manufacturing method |
| CN106157793A (en) * | 2016-08-30 | 2016-11-23 | 合肥磐石自动化科技有限公司 | A kind of separate type many rod members combined demonstration device |
| CN106940962A (en) * | 2017-04-21 | 2017-07-11 | 中国地质大学（武汉） | A kind of multi-functional mechanical principle teaching aid |
| CN108022499A (en) * | 2017-12-26 | 2018-05-11 | 宁波大学 | A kind of open-close type theory of mechanics demonstration teaching aid |
| CN112863300A (en) * | 2021-01-27 | 2021-05-28 | 贵州金之翼大数据科技有限公司 | Education science and technology is with safe type teaching aid |
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394279Y (en) * | 1999-04-01 | 2000-08-30 | 徐剑雄 | Transmission mechanism demonstrator |
| CN2485734Y (en) * | 2001-03-16 | 2002-04-10 | 陈楚南 | Page turning and drawer style demonstrator for electrostatic field and potential |
| CN201886690U (en) * | 2010-12-17 | 2011-06-29 | 魏秀军 | Hinged four-bar linkage type demonstration device |
| CN202319339U (en) * | 2011-12-02 | 2012-07-11 | 高栋 | Page turning book for Chinese teaching demonstration |
| CN203085000U (en) * | 2013-03-13 | 2013-07-24 | 仝亚男 | Demonstrator for revolute four-bar mechanism |
| CN203405980U (en) * | 2013-08-25 | 2014-01-22 | 侯子强 | History teaching demonstration teaching aid |
| CN204087671U (en) * | 2014-04-22 | 2015-01-07 | 江汉大学 | A kind of mechanically operated classroom teaching aid |
-
2014
- 2014-04-22 CN CN201410163631.5A patent/CN104008695B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394279Y (en) * | 1999-04-01 | 2000-08-30 | 徐剑雄 | Transmission mechanism demonstrator |
| CN2485734Y (en) * | 2001-03-16 | 2002-04-10 | 陈楚南 | Page turning and drawer style demonstrator for electrostatic field and potential |
| CN201886690U (en) * | 2010-12-17 | 2011-06-29 | 魏秀军 | Hinged four-bar linkage type demonstration device |
| CN202319339U (en) * | 2011-12-02 | 2012-07-11 | 高栋 | Page turning book for Chinese teaching demonstration |
| CN203085000U (en) * | 2013-03-13 | 2013-07-24 | 仝亚男 | Demonstrator for revolute four-bar mechanism |
| CN203405980U (en) * | 2013-08-25 | 2014-01-22 | 侯子强 | History teaching demonstration teaching aid |
| CN204087671U (en) * | 2014-04-22 | 2015-01-07 | 江汉大学 | A kind of mechanically operated classroom teaching aid |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725600A (en) * | 2016-04-06 | 2016-07-06 | 汤贵春 | Multi-card continuous display device and manufacturing method |
| CN106157793A (en) * | 2016-08-30 | 2016-11-23 | 合肥磐石自动化科技有限公司 | A kind of separate type many rod members combined demonstration device |
| CN106157793B (en) * | 2016-08-30 | 2022-07-22 | 合肥磐石智能科技股份有限公司 | Separated multi-rod combined demonstration device |
| CN106940962A (en) * | 2017-04-21 | 2017-07-11 | 中国地质大学（武汉） | A kind of multi-functional mechanical principle teaching aid |
| CN108022499A (en) * | 2017-12-26 | 2018-05-11 | 宁波大学 | A kind of open-close type theory of mechanics demonstration teaching aid |
| CN108022499B (en) * | 2017-12-26 | 2023-11-14 | 宁波大学 | Open-close type mechanical principle demonstration teaching aid |
| CN112863300A (en) * | 2021-01-27 | 2021-05-28 | 贵州金之翼大数据科技有限公司 | Education science and technology is with safe type teaching aid |
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
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|---|---|
| CN104008695B (en) | 2016-08-31 |
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