CN204010516U - Multimachine structure tables and chairs for teaching demonstration - Google Patents
Multimachine structure tables and chairs for teaching demonstration Download PDFInfo
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- CN204010516U CN204010516U CN201420503871.0U CN201420503871U CN204010516U CN 204010516 U CN204010516 U CN 204010516U CN 201420503871 U CN201420503871 U CN 201420503871U CN 204010516 U CN204010516 U CN 204010516U
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Abstract
The utility model discloses multimachine structure tables and chairs for teaching demonstration, comprise desktop, seat, left and right table body and left and right feet, left and right feet is welded to respectively left and right table body bottom, and it also comprises synchronous belt drive mechanism, gear and chain-drive mechanism, slider-crank mechanism and cam follower mechanism.By combine synchronous belt drive mechanism, chain-drive mechanism, cam follower mechanism, slider-crank mechanism, gear drive simultaneously, carry out transmission of power, desktop lifting, desktop upset, seat contractile function can be realized, and the multimachine structure tables and chairs for teaching demonstration of demonstration teaching aid can be served as.
Description
Technical field
The utility model relates to a kind of multifunctional table and chair, is specifically related to the adjustable multimachine structure tables and chairs for teaching demonstration in many parts that a kind of applicable colleges and universities use.
Background technology
Tables and chairs in classroom are as the important component part of daily teaching activity, and its performance quality has influence on student's learning efficiency to a great extent.
Common integrated tables and chairs in colleges and universities, its desktop and seat are fixed on table and are in, and can not regulate, and then can not meet different build students' sitting posture demand simultaneously.In prior art, have some multifunctional table and chairs can realize the local modulation to tables and chairs, but exist can only manual adjustments, the deficiency such as adjustable position is single.Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Utility model content
For addressing the above problem, the utility model provides a kind of and only by single motor, is driven, by combine synchronous belt drive mechanism, chain-drive mechanism, cam follower mechanism, slider-crank mechanism, gear drive simultaneously, carry out transmission of power, desktop lifting, desktop upset, seat contractile function can be realized, and the multimachine structure tables and chairs for teaching demonstration of demonstration teaching aid can be served as.
The technical solution adopted in the utility model is:
Multimachine structure tables and chairs for teaching demonstration, comprise desktop, seat, left and right table body and left and right feet, described left and right feet is welded to respectively left and right table body bottom, and it also comprises synchronous belt drive mechanism, gear and chain-drive mechanism, slider-crank mechanism and cam follower mechanism;
Described synchronous belt drive mechanism comprises motor, shaft coupling, little synchronizing wheel, large synchronizing wheel and Timing Belt, described shaft coupling one end is connected with motor projecting shaft, the described shaft coupling other end is connected with minor axis, Horizontal axle bearing I is equipped with at described minor axis place, described little synchronizing wheel is fixed on minor axis end and rotates with motor shaft, described large synchronizing wheel is installed on rotating shaft I end, and described large synchronizing wheel is connected with little synchronizing wheel by Timing Belt;
Described gear and chain-drive mechanism comprise rotating shaft I, rotating shaft II, rotating shaft III, eccentric wheel, gear and sprocket wheel, in described rotating shaft I, be mounted with gear I, eccentric wheel I and eccentric wheel II, in described rotating shaft II, be mounted with gear II and hinge wheel, in described rotating shaft III, be mounted with minor sprocket, when described large synchronizing wheel rotates, control gear I, eccentric wheel I and eccentric wheel II are rotated, described gear I external gear pump II, described gear II is rotated and is driven hinge wheel to rotate, and described minor sprocket is connected with hinge wheel by chain and drives rotating shaft III to rotate;
Described slider-crank mechanism comprises crank I, crank II, connecting rod I, connecting rod II, slide block I and slide block II, when described rotating shaft III is rotated, driving crank I, crank II are done 360 ° of rotations, described connecting rod I, connecting rod II one end are connected with crank I, crank II, connecting rod I, the connecting rod II other end are connected with slide block I, slide block II, two projecting shafts of two slide block ends are limited in the groove of seat sway brace, described seat is fixed on two slide blocks by hinge I, and crank I, the action of crank II can drive seat level to shrink;
Described cam follower mechanism comprises push rod I, push rod II, movable block I, movable block II and two eccentric wheels, described push rod II, push rod I is installed on respectively a left side, right table body top, described table body top is processed with sliding tray and through hole, two push rod shafts can be in through hole knee-action, two push rod Slipper one end respectively with eccentric wheel I, the contact of eccentric wheel II, the other end slides up and down in sliding tray, back-moving spring is all housed on two push rods, described movable block I, movable block II is fixed on a left side, right table is the two ends of bearing plate of end face with it, described movable block I, desktop bottom is fixed on by hinge II in movable block II top, two movable blocks are processed with central through hole, two push rods can be in through hole knee-action, a described left side, thumbscrew I is installed in the threaded hole of right movable block, II, eccentric wheel I, eccentric wheel II is rotated the adjusting realizing desktop.
Described motor is installed on the motor rack middle part of left and right feet bottom.
Described rotating shaft I two ends are provided with Horizontal axle bearing III, described rotating shaft II two ends are provided with Horizontal axle bearing V and Horizontal axle bearing VI, described rotating shaft III two ends are provided with Horizontal axle bearing II and Horizontal axle bearing IV, and each Horizontal axle bearing is used for limiting moving axially of respective axes of rotation.
The beneficial effects of the utility model: teaching demonstration of the present utility model be take motor as power source with multimachine structure tables and chairs, has realized Mechatronics control; Utilize synchronous belt drive mechanism, chain-drive mechanism, cam follower mechanism, slider-crank mechanism, gear drive to carry out transmission of power, can play the effect of mechanism kinematic demonstration teaching aid; Desktop liftable and upset, can facilitate writing of student greatly; Seat can level shrink, and can meet different students' sitting posture demand.
Accompanying drawing explanation
Fig. 1 is 45 °, right side of the present utility model Facad structure schematic diagram.
Fig. 2 is 45 °, left side of the present utility model Facad structure schematic diagram.
Fig. 3 is mechanism kinematic demo function schematic diagram of the present utility model.
Fig. 4 is the horizontal contractile function schematic diagram of seat of the present utility model.
Fig. 5 is desktop VTOL (vertical take off and landing) functional schematic of the present utility model.
Fig. 6 is desktop turn over function schematic diagram of the present utility model.
Wherein: 1, right support pin, 2, little synchronizing wheel, 3, Timing Belt, 4, large synchronizing wheel, 5, back-moving spring, 6, thumbscrew I, 7, desktop, 8, gear I, 9, eccentric wheel I, 10, seat, 11, slide block I, 12, minor sprocket, 13, chain, 14, motor, 15, shaft coupling, 16, Horizontal axle bearing I, 17, Horizontal axle bearing II, 18, slide block II, 19, eccentric wheel II, 20, thumbscrew II, 21, Horizontal axle bearing III, 22, gear II, 23, hinge wheel, 24, crank I, 25, connecting rod I, 26, left support pin, 27, motor rack, 28, connecting rod II, 29, crank II, 30, Horizontal axle bearing IV, 31, Horizontal axle bearing V, 32, push rod I, 33, rotating shaft I, 34, push rod II, 35, Horizontal axle bearing VI, 36, rotating shaft II, 37, rotating shaft III, 38, right seat sway brace, 39, left seat sway brace, 40, hinge I, 41, right table body, 42, movable block I, 43, supporting plate, 44, movable block II, 45, left table body, 46, hinge II, 47, minor axis.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Following examples only, for the utility model is described, are not used for limiting protection domain of the present utility model.
As illustrated in fig. 1 and 2, multimachine structure tables and chairs for teaching demonstration of the present utility model, comprise desktop 7, seat 10, left and right table body 45,41 and left and right feet 26,1, left and right feet 26,1 is welded to respectively left and right table body 45,41 bottoms, guarantee the stability of whole tables and chairs, it also comprises synchronous belt drive mechanism, gear and chain-drive mechanism, slider-crank mechanism and cam follower mechanism;
Shown in Fig. 3, synchronous belt drive mechanism comprises motor 14, shaft coupling 15, little synchronizing wheel 2, large synchronizing wheel 4 and Timing Belt 3, shaft coupling 15 one end are connected with motor 14 projecting shafts, shaft coupling 15 other ends are connected with minor axis 47, Horizontal axle bearing I 16 is equipped with at minor axis 47 places, little synchronizing wheel 2 is fixed on minor axis 47 ends and rotates with motor 14 axles, and large synchronizing wheel 4 is installed on rotating shaft I 33 ends, and large synchronizing wheel 4 is connected with little synchronizing wheel 2 by Timing Belt 3;
Shown in Fig. 3, gear and chain-drive mechanism comprise rotating shaft I 33, rotating shaft II 36, rotating shaft III 37, eccentric wheel, gear and sprocket wheel, in rotating shaft I 33, be mounted with gear I 8, eccentric wheel I 9 and eccentric wheel II 19, in rotating shaft II 36, be mounted with gear II 22 and hinge wheel 23, in rotating shaft III 36, be mounted with minor sprocket 12, control gear I 33 when large synchronizing wheel 4 rotates, eccentric wheel I 9 and eccentric wheel II 19 are rotated, gear I 8 external gear pump II 22, gear II 22 is rotated and is driven hinge wheel 23 to rotate, minor sprocket 12 is connected with hinge wheel 23 by chain and drives rotating shaft III 37 to rotate,
Shown in Fig. 4, slider-crank mechanism comprises crank I 24, crank II 29, connecting rod I 25, connecting rod II 28, slide block I 11 and slide block II 18, driving crank I 24 when rotating shaft III 36 is rotated, crank II 29 is done 360 ° of rotations, connecting rod I 25, connecting rod II 28 one end and crank I 24, crank II 29 connects, connecting rod I 25, connecting rod II 28 other ends and slide block I 11, slide block II 18 connects, two projecting shafts of two slide block ends are limited in a left side, right seat sway brace 39, in 38 groove, seat 10 use hinge I 40 are fixed on two slide blocks, crank I 24, 29 actions of crank II can drive seat 10 levels to shrink,
Shown in Fig. 5 and Fig. 6, cam follower mechanism comprises push rod I 32, push rod II 34, movable block I 42, movable block II 44 and two eccentric wheels, push rod II 34, push rod I 32 is installed on respectively a left side, right table body 45, 41 tops, table body 45, 41 tops are processed with sliding tray and through hole, two push rod shafts can be in through hole knee-action, two push rod Slipper one end respectively with eccentric wheel I 9, 19 contacts of eccentric wheel II, the other end slides up and down in sliding tray, and push rod height overall is less than sliding tray length, and push rod can split out in groove, and back-moving spring 5, movable block I are all housed on two push rods, movable block II 42, 44 are fixed on a left side, right table body 45, supporting plate 43 two ends of 41 upper surfaces, movable block I, movable block II 42, desktop 7 bottoms are fixed on by hinge II 46 in 44 tops, and two movable blocks are processed with central through hole, two push rods can be in through hole knee-action, a left side, thumbscrew I is installed in the threaded hole of right movable block, II 6, 20, eccentric wheel I, eccentric wheel II 9, 19 rotate the adjusting realizing desktop 7.
Above-mentioned motor 14 is installed on motor rack 27 middle parts of left and right feet 26,1 bottom.
Above-mentioned rotating shaft I 33 two ends are provided with Horizontal axle bearing III 21, rotating shaft II 36 two ends are provided with Horizontal axle bearing V 31 and Horizontal axle bearing VI 35, rotating shaft III 37 two ends are provided with Horizontal axle bearing II 17 and Horizontal axle bearing IV 30, and each Horizontal axle bearing is used for limiting moving axially of respective axes of rotation.
Multimachine structure tables and chairs principle of work for teaching demonstration of the present utility model: take motor 14 as drive source, by shaft coupling 15, drive little synchronizing wheel 2, by Timing Belt 3, drive large synchronizing wheel 4 to rotate again, transmission of power on rotating shaft I 33, driven gear I 8 and eccentric wheel I 9, eccentric wheel II 19 are rotated, external toothing by gear drives hinge wheel 23 on the one hand, and recycling chain in crank I 24, crank II 29, is realized the even running of slider-crank mechanism, the level of seat is shunk by transmission of power; On the other hand, eccentric wheel I, II 9,19 are rotated and can be promoted the up and down reciprocatingly action in groove of two push rods, thumbscrew when both sides does not screw, when the movable block on both sides is separated with push rod, can realize desktop upset, when thumbscrew screws, when movable block and push rod are fixed together, can realize the lifting of desktop.
Teaching demonstration of the present utility model be take motor as power source with multimachine structure tables and chairs, has realized Mechatronics control; Utilize synchronous belt drive mechanism, chain-drive mechanism, cam follower mechanism, slider-crank mechanism, gear drive to carry out transmission of power, can play the effect of mechanism kinematic demonstration teaching aid; Desktop liftable and upset, can facilitate writing of student greatly; Seat can level shrink, and can meet different students' sitting posture demand.
Claims (3)
1. multimachine structure tables and chairs for teaching demonstration, comprise desktop, seat, left and right table body and left and right feet, described left and right feet is welded to respectively left and right table body bottom, it is characterized in that: it also comprises synchronous belt drive mechanism, gear and chain-drive mechanism, slider-crank mechanism and cam follower mechanism;
Described synchronous belt drive mechanism comprises motor, shaft coupling, little synchronizing wheel, large synchronizing wheel and Timing Belt, described shaft coupling one end is connected with motor projecting shaft, the described shaft coupling other end is connected with minor axis, Horizontal axle bearing I is equipped with at described minor axis place, described little synchronizing wheel is fixed on minor axis end and rotates with motor shaft, described large synchronizing wheel is installed on rotating shaft I end, and described large synchronizing wheel is connected with little synchronizing wheel by Timing Belt;
Described gear and chain-drive mechanism comprise rotating shaft I, rotating shaft II, rotating shaft III, eccentric wheel, gear and sprocket wheel, in described rotating shaft I, be mounted with gear I, eccentric wheel I and eccentric wheel II, in described rotating shaft II, be mounted with gear II and hinge wheel, in described rotating shaft III, be mounted with minor sprocket, when described large synchronizing wheel rotates, control gear I, eccentric wheel I and eccentric wheel II are rotated, described gear I external gear pump II, described gear II is rotated and is driven hinge wheel to rotate, and described minor sprocket is connected with hinge wheel by chain and drives rotating shaft III to rotate;
Described slider-crank mechanism comprises crank I, crank II, connecting rod I, connecting rod II, slide block I and slide block II, when described rotating shaft III is rotated, driving crank I, crank II are done 360 ° of rotations, described connecting rod I, connecting rod II one end are connected with crank I, crank II, connecting rod I, the connecting rod II other end are connected with slide block I, slide block II, two projecting shafts of two slide block ends are limited in the groove of seat sway brace, described seat is fixed on two slide blocks by hinge I, and crank I, the action of crank II can drive seat level to shrink;
Described cam follower mechanism comprises push rod I, push rod II, movable block I, movable block II and two eccentric wheels, described push rod II, push rod I is installed on respectively a left side, right table body top, described table body top is processed with sliding tray and through hole, two push rod shafts can be in through hole knee-action, two push rod Slipper one end respectively with eccentric wheel I, the contact of eccentric wheel II, the other end slides up and down in sliding tray, back-moving spring is all housed on two push rods, described movable block I, movable block II is fixed on a left side, right table is the two ends of bearing plate of end face with it, described movable block I, desktop bottom is fixed on by hinge II in movable block II top, two movable blocks are processed with central through hole, two push rods can be in through hole knee-action, a described left side, thumbscrew I is installed in the threaded hole of right movable block, II, eccentric wheel I, eccentric wheel II is rotated the adjusting realizing desktop.
2. multimachine structure tables and chairs for teaching demonstration according to claim 1, is characterized in that: described motor is installed on the motor rack middle part of left and right feet bottom.
3. multimachine structure tables and chairs for teaching demonstration according to claim 2, it is characterized in that: described rotating shaft I two ends are provided with Horizontal axle bearing III, described rotating shaft II two ends are provided with Horizontal axle bearing V and Horizontal axle bearing VI, described rotating shaft III two ends are provided with Horizontal axle bearing II and Horizontal axle bearing IV, and each Horizontal axle bearing is used for limiting moving axially of respective axes of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503871.0U CN204010516U (en) | 2014-09-03 | 2014-09-03 | Multimachine structure tables and chairs for teaching demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503871.0U CN204010516U (en) | 2014-09-03 | 2014-09-03 | Multimachine structure tables and chairs for teaching demonstration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010516U true CN204010516U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503871.0U Expired - Fee Related CN204010516U (en) | 2014-09-03 | 2014-09-03 | Multimachine structure tables and chairs for teaching demonstration |
Country Status (1)
| Country | Link |
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| CN (1) | CN204010516U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108506A (en) * | 2016-08-12 | 2016-11-16 | 无锡博辉金属制品有限公司 | Platform sold by a kind of stationery increasing placing space |
| CN107242681A (en) * | 2017-07-17 | 2017-10-13 | 徐朋飞 | A kind of Height Adjustable desk |
| CN107432560A (en) * | 2017-08-31 | 2017-12-05 | 陈秋菊 | Convenient teaching experiment lectern |
| CN108713863A (en) * | 2018-07-25 | 2018-10-30 | 哈尔滨学院 | A kind of theory of physical education lecture auxiliary device |
| CN112634736A (en) * | 2021-01-19 | 2021-04-09 | 南昌工程学院 | Practical demonstration teaching aid for mechanical principle classroom teaching |
| CN114310811A (en) * | 2021-12-16 | 2022-04-12 | 西安理工大学 | Workpiece turnover mechanism |
-
2014
- 2014-09-03 CN CN201420503871.0U patent/CN204010516U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106108506A (en) * | 2016-08-12 | 2016-11-16 | 无锡博辉金属制品有限公司 | Platform sold by a kind of stationery increasing placing space |
| CN107242681A (en) * | 2017-07-17 | 2017-10-13 | 徐朋飞 | A kind of Height Adjustable desk |
| CN107432560A (en) * | 2017-08-31 | 2017-12-05 | 陈秋菊 | Convenient teaching experiment lectern |
| CN108713863A (en) * | 2018-07-25 | 2018-10-30 | 哈尔滨学院 | A kind of theory of physical education lecture auxiliary device |
| CN112634736A (en) * | 2021-01-19 | 2021-04-09 | 南昌工程学院 | Practical demonstration teaching aid for mechanical principle classroom teaching |
| CN114310811A (en) * | 2021-12-16 | 2022-04-12 | 西安理工大学 | Workpiece turnover mechanism |
| CN114310811B (en) * | 2021-12-16 | 2024-02-27 | 西安理工大学 | Workpiece overturning mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150903 |
|
| EXPY | Termination of patent right or utility model |