CN204708290U - A kind of ergonomic teaching equipment - Google Patents
A kind of ergonomic teaching equipment Download PDFInfo
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- CN204708290U CN204708290U CN201520429448.5U CN201520429448U CN204708290U CN 204708290 U CN204708290 U CN 204708290U CN 201520429448 U CN201520429448 U CN 201520429448U CN 204708290 U CN204708290 U CN 204708290U
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- revolute pair
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- boxboard
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Abstract
The utility model relates to a kind of ergonomic teaching equipment, comprise a body, the box plate that table body has two blocks of side plates, case backboard, cover plate and is positioned at below cover plate, cover plate comprises front shroud and back shroud, box plate comprises front boxboard and rearing-box plate, the front end of rearing-box plate is provided with front apron, table body is provided with cover plate slide switching mechanism and boxboard switching mechanism.The utility model adopts planar linkage mechanism, and structure is simple, takes up room little, do not affect student's both legs over and movable, solve traditional intelligence and get that book mechanism structure is complicated, take up room large problem; The utility model adopts pedal automatically to control boxboard switching mechanism, and simple to operate, mechanism action is flexible, student is made to pick and place the article such as books or stationery very convenient, the comfort level of health and eyes when improving Students ' Learning, improves and learns a little efficiency, meet the requirement of ergonomics.
Description
Technical field
The utility model relates to a kind of teaching equipment, particularly relates to the ergonomic teaching equipment of a kind of student.
Background technology
Teaching equipment refers to the furniture used in teaching process, the equipment such as machine, as blackboard, desk and chair, experiment furniture, at present, teaching equipment is through innovation and development for many years, be transitioned into from single wooden solid form the variform more meeting ergonomics gradually, such as there is Liftable type in desk, just portable, tables and chairs integral type, multimedia formula, the various ways such as intelligent tutoring formula, be applied to different occasion respectively to meet the different needs, but the production installation and maintenance according to domestic teaching affairs and desk become originally to see, desk for middle and primary schools still generally adopts the desk only with simple functions such as liftables.
Simultaneously, what present desk had is drawer type desk, when drawer is not extracted out completely, student gets book and needs croucs, and the innermost article of drawer be can't see, be inconvenient to find the article that will get, if when drawer is extracted out completely, drawer can arrive to the health of student, takes up room, and in drawer, books are very heavy, and inconvenience is extracted out completely; What have is flip-shell desk, cover plate switch frequency is higher, and the front cover portion near student is normally dug by existing flip-shell desk, back cover portion is for placing a small amount of article, cover plate to be opened when getting book in desk when cover plate being placed with the article such as books or apparatus, if the area of front cover portion is too little, bad being not easy to of light in desk looks for article, if the area of front cover portion is too large or impartial with the area of back cover portion, when protecgulum is dug, the easily landing backward of books on desktop, gets book trouble; In addition, these desks not easily effectively store classifiedly book, and various book often mixes and stacks together by student, causes and can not find the book wanted rapidly and accurately, thus to the inconvenience that student brings.Therefore, present desk there is no that ergonomically said " improving comfortableness and efficiency " is designed, and does not have the sensation of Energy and comfort, and also create larger impact to learning efficiency when student uses.
Application number be 201410258940.0 application discloses that a kind of intelligence is got book and got thing multifunctional desk, this desk realizes out the folding of fore-edge by open-and-close mechanism, bookcase is made to realize moving up and down by elevating mechanism, open-and-close mechanism adopts pinion and rack, elevating mechanism adopts screw pair, although this multifunctional desk conveniently can pick and place books, but complex structure, cost is high, and adopt motor to drive, use and inconvenience, in this application, the setting of elevating mechanism and horizontal mobile mechanism limits the size of bookcase simultaneously, thus limit the number can putting books, therefore this multifunctional desk impracticable.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of ergonomic teaching equipment, to solve the shortcoming in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
The utility model provides a kind of ergonomic teaching equipment, comprise a body, the box plate that table body has two blocks of side plates, case backboard, cover plate and is positioned at below cover plate, cover plate comprises front shroud and back shroud, box plate comprises front boxboard and rearing-box plate, the front end of rearing-box plate is provided with front apron, table body is provided with cover plate slide switching mechanism and boxboard switching mechanism, wherein:
Cover plate slide switching mechanism comprises the identical left slide open-and-close mechanism of structure and right side slide switching mechanism, and left slide open-and-close mechanism and right side slide switching mechanism symmetry are installed on a body both sides, left slide open-and-close mechanism comprises: cover plate rail plate, A connecting rod and B connecting rod, front shroud is slidably arranged on side plate by cover plate rail plate, A connecting rod one end is connected with front shroud by the first revolute pair, the middle part of A connecting rod has long slot bore, and A connecting rod is connected on side plate by the second revolute pair be arranged in long slot bore, the A connecting rod other end connects B connecting rod one end by the 3rd revolute pair, the B connecting rod other end connects the front end of back shroud by the 4th revolute pair, this front end is the one end near front shroud, the back shroud other end is connected on side plate by the 5th revolute pair,
Boxboard switching mechanism comprises pedal, left side boxboard switching mechanism and right side boxboard switching mechanism, two ends, pedal left and right are connected on side plate by the 6th revolute pair, left side boxboard switching mechanism is identical with the structure of right side boxboard switching mechanism, and symmetry is installed on pedal both sides, left side boxboard switching mechanism comprises: C connecting rod, D connecting rod, E connecting rod, F connecting rod, G connecting rod, H connecting rod, I connecting rod and boxboard rail plate, C connecting rod one end is fixed on pedal, the other end connects one end of D connecting rod by the 7th revolute pair, the D connecting rod other end connects E connecting rod one end by the 8th revolute pair, be connected on side plate by the 9th revolute pair in the middle part of E connecting rod, the E connecting rod other end connects F connecting rod one end by the tenth revolute pair, the F connecting rod other end connects the rear end of rearing-box plate by the 11 revolute pair, this rear end is the one end near case backboard, the rear end of this rearing-box plate also connects G connecting rod one end by the 12 revolute pair, the rearing-box plate other end is connected on side plate by the 15 revolute pair, the G connecting rod other end connects H connecting rod one end and I connecting rod one end by compound hinges, boxboard before the H connecting rod other end is connected by the 13 revolute pair, front boxboard is slidably arranged on side plate by boxboard rail plate, the I connecting rod other end is connected on side plate by the 14 revolute pair, case backboard is provided with the support angle concordant with the 15 revolute pair for supporting rearing-box plate.
First revolute pair described in the utility model is identical with the structure of the 4th revolute pair, first revolute pair comprises band plummer block housing bearing, bearing pin, pad and U-shaped jump ring, bearing pin one end is fixed in band plummer block housing bearing, the other end is provided with U-shaped jump ring, U-shaped jump ring is used for axial location, is provided with pad between bearing pin and U-shaped jump ring.
Second revolute pair described in the utility model comprises pin.
3rd revolute pair described in the utility model and the 7th revolute pair, the 8th revolute pair, the tenth revolute pair are identical with the structure of compound hinges, and the 3rd revolute pair comprises bearing pin, improved mat and U-shaped jump ring, and U-shaped jump ring is located at bearing pin one end and carries out axial location.
5th revolute pair described in the utility model is identical with the structure of the 11 revolute pair, the 12 revolute pair, the 5th revolute pair comprises angle bar, bearing pin, pad and U-shaped jump ring, and bearing pin is located at angle bar, and bearing pin is provided with U-shaped jump ring and carries out axial location.
6th revolute pair described in the utility model comprises band diamond-type base bearing, rotating shaft, band plummer block housing bearing, band diamond-type base bearing is fixed on side plate, band plummer block housing bearing is fixed on pedal, and the two ends of rotating shaft are fixed in band diamond-type base bearing through band plummer block housing bearing.
9th revolute pair described in the utility model is identical with the structure of the 14 revolute pair, and the 9th revolute pair comprises the band diamond-type base bearing be fixed on side plate and the bearing pin be fixed in band diamond-type base bearing.
15 revolute pair described in the utility model comprises bearing holder (housing, cover), shaft connecting bearing, back shaft, band diamond-type base bearing, bearing holder (housing, cover) is fixed on front apron, shaft connecting bearing is arranged in bearing holder (housing, cover), and be arranged on back shaft, the two ends of back shaft are fixed in band diamond-type base bearing, and band diamond-type base bearing is fixed on biside plate.
Advantage and beneficial effect:
(1) the ergonomic teaching equipment in the utility model, provide the desk that a kind of student of convenience picks and places the article such as books, the box plate being used for depositing books or stationery is designed to front boxboard and rearing-box plate two parts by this desk, student is sitting in before desk, front boxboard can be gone out toward student direction sliding by boxboard rail plate, make student need not bend over to get the article be placed on front boxboard, rearing-box plate then can be tilted to student direction by boxboard switching mechanism, make student after cover plate is opened, can bend over also to convert sitting posture and just can easily see the article be placed on rearing-box plate, simultaneously because back shroud is opened, bright light in desk case base plate, solve internal light dark at the bottom of the case of existing desk and be not easy to find the problem of required article, student also conveniently can get an article for body inside, make the convenient power-saving of daily learning life of student, also improve learning efficiency,
(2) deck design as desktop is front shroud and back shroud two parts by the utility model, the area of front shroud and back shroud is roughly equal, front shroud can be sent toward student direction horizontal stable sliding by cover plate rail plate, make student when picking and placeing desk casing interior items, without the need to the article on desktop are removed, also without the need to living in case it drops with hand saver, solve the problem that the article of existing flip-shell desk when monoblock desktop or most of desktop being dug on desktop easily drop, and front shroud and back shroud can actions simultaneously by cover plate slide switching mechanism, front shroud slips off forward, back shroud opens backward, the complete clear article seeing all positions of desk box house of energy while desktop article not easily drop, very conveniently to pick and place, protect the eyesight of student simultaneously, improve the comfort level of health and eyes, meet the requirement of ergonomics,
(3) the boxboard switching mechanism being used for ejecting box plate is arranged on side of desk intralamellar part by the utility model, and press close to the inner surface of side plate, adopt planar linkage mechanism, structure is simple, take up room little, do not affect student's both legs over and movable, solve traditional intelligence and get that book mechanism structure is complicated, take up room large problem, cover plate slide switching mechanism of the present utility model is arranged on outside desk side plate simultaneously, can not cause interference during connecting rod action with boxboard switching mechanism;
(4) cover plate slide switching mechanism of the present utility model and boxboard switching mechanism all adopt linkage, what the connection between each component adopted is all bearing pin, pin, screw, the simple standard component such as nut, installation and maintenance is very convenient, use angle bar at crucial forced position simultaneously, make the stabilized structure of cover plate slide switching mechanism and boxboard switching mechanism reliable, boxboard switching mechanism adopts pedal to control simultaneously, the both feet of student can be put on pedal naturally, only need both feet gently to step on plate when needs pick and place book, the action of connecting rod is simple, easy to operate, while the comfort level improving sitting posture and eyesight, also save the time, improve learning efficiency.
Accompanying drawing explanation
Fig. 1 is the left view of a kind of embodiment of the present utility model.
Fig. 2 is the right pseudosection of a kind of embodiment of the present utility model.
Fig. 3 is the structural representation of the cover plate slide switching mechanism of a kind of embodiment of the present utility model.
Fig. 4 is the structural representation of the boxboard switching mechanism of a kind of embodiment of the present utility model.
Fig. 5 is the structural representation of the compound hinges of a kind of embodiment of the present utility model.
Fig. 6 is the syndeton schematic diagram of the pedal of a kind of embodiment of the present utility model.
Fig. 7 is the enlarged drawing of the C in Fig. 3.
Fig. 8 is the enlarged drawing of F in Fig. 6.
Fig. 9 is the profile of the 3rd revolute pair.
Figure 10 is the profile of compound hinges.
Figure 11 is the enlarged drawing of the E in Fig. 6.
Figure 12 is the enlarged drawing of the G in Fig. 6.
Figure 13 is the enlarged drawing of the B in Fig. 2.
Figure 14 is the sectional view of the A-A in Fig. 2.
Figure 15 is the enlarged drawing of the D in Fig. 4.
Figure 16 is the structure diagram of boxboard switching mechanism of the present utility model.
Figure 17 is the structure diagram of cover plate slide switching mechanism of the present utility model.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1-17, the utility model comprises: left plate 101, right plate 102, case backboard 103, front shroud 104, back shroud 105, front boxboard 106, rearing-box plate 107, front apron 108, cover plate rail plate 201, first revolute pair 202, A connecting rod 203, second revolute pair 204, 3rd revolute pair 205, B connecting rod 206, 4th revolute pair 207, 5th revolute pair 208, 6th revolute pair 301, pedal 302, C connecting rod 303, 7th revolute pair 304, D connecting rod 305, 8th revolute pair 306, E connecting rod 307, 9th revolute pair 308, tenth revolute pair 309, F connecting rod 310, 11 revolute pair 311, 12 revolute pair 312, G connecting rod 313, H connecting rod 314, I connecting rod 315, compound hinges 316, 13 revolute pair 317, 14 revolute pair 318, 15 revolute pair 319, boxboard rail plate 320,
Band plummer block housing bearing 2071, bearing pin 2072, pad 2073, U-shaped jump ring 2074,
Bearing pin 2051, improved mat 2052, U-shaped jump ring 2053,
A angle bar 2081, bearing pin 2082, pad 2083, U-shaped jump ring 2084,
Band diamond-type base bearing 3011, rotating shaft 3012, band plummer block housing bearing 3013,
Band diamond-type base bearing 3081, bearing pin 3082,
Bearing pin 3161, improved mat 3162, U-shaped jump ring 3163,
Band diamond-type base bearing 3191, back shaft 3192, shaft connecting bearing 3193, bearing holder (housing, cover) 3194,
B angle bar 3031, c angle bar 3111, d angle bar 3141, e angle bar 1031, f angle bar 3203.
See the ergonomic teaching equipment in Fig. 1-17, this ergonomic teaching equipment comprises a body, table body is provided with cover plate slide switching mechanism and boxboard switching mechanism.Conveniently, in below describing, be described after with the one end at front shroud place, to be one end, forward and backward cover plate place be.
Table body comprises two blocks of side plates, case backboard 103, front shroud 104, back shroud 105, front boxboard 106, rearing-box plate 107, two blocks of side plates are respectively left plate 101, right plate 102, left plate 101 and right plate 102 oppose setting mutually, and case backboard 103 is fixed on the rear end of left plate 101 and right plate 102; Front shroud 104 and back shroud 105 are arranged on the top of left plate 101 and right plate 102, front shroud 104 and back shroud 105 side bonded to each other match, one piece of whole desktop is formed, the symmetrical center line of institute formed entirety that L is a body each part after closed; Front boxboard 106 and rearing-box plate 107 are arranged between left plate 101 and right plate 102, and front boxboard 106 is arranged on immediately below front shroud 104, and rearing-box plate 107 is arranged on immediately below back shroud 105; The front end of rearing-box plate 107 is fixedly connected with front apron 108.
Cover plate slide switching mechanism comprises left slide open-and-close mechanism and right side slide switching mechanism, wherein, left slide open-and-close mechanism comprises cover plate rail plate 201, first revolute pair 202, A connecting rod 203, second revolute pair 204, the 3rd revolute pair 205, B connecting rod 206, the 4th revolute pair 207 and the 5th revolute pair 208.Front shroud 104 is arranged on left plate 101 by cover plate rail plate 201; One end of A connecting rod 203 connects front shroud 104, A connecting rod 203 middle part by the first revolute pair 202 is connected on left plate 101 by the second revolute pair 204, and the other end of A connecting rod 203 connects one end of B connecting rod 206 by the 3rd revolute pair 205; The other end of B connecting rod 206 connects the front end of back shroud 105 by the 4th revolute pair 207, the rear end of back shroud 105 is connected on left plate 101 by the 5th revolute pair 208.Right side slide switching mechanism and left slide open-and-close mechanism are symmetrical set about symmetrical centre line L.
Boxboard switching mechanism comprises left side boxboard switching mechanism and right side boxboard switching mechanism, wherein, boxboard switching mechanism in left side comprises the 6th revolute pair 301, pedal 302, C connecting rod 303, the 7th revolute pair 304, D connecting rod 305, the 8th revolute pair 306, E connecting rod 307, the 9th revolute pair 308, the tenth revolute pair 309, F connecting rod the 310, the 11 revolute pair the 311, the 12 revolute pair 312, G connecting rod 313, H connecting rod 314, I connecting rod 315, compound hinges the 316, the 13 revolute pair the 317, the 14 revolute pair the 318, the 15 revolute pair 319 and boxboard rail plate 320.One end of pedal 302 is connected on left plate 101 by the 6th revolute pair 301, and the other end of pedal 302 is fixed on one end of C connecting rod 303 by b angle bar 3031; The other end of C connecting rod 303 connects one end of D connecting rod 305 by the 7th revolute pair 304; The other end of D connecting rod 305 connects one end of E connecting rod 307 by the 8th revolute pair 306; The middle part of E connecting rod 307 is connected on left plate 101 by the 9th revolute pair 308, and the other end of E connecting rod 307 connects one end of F connecting rod 310 by the tenth revolute pair 309; The other end of F connecting rod 310 connects the rear end of rearing-box plate 107 by the 11 revolute pair 311, the rear end of rearing-box plate 107 also connects one end of G connecting rod 313 by the 12 revolute pair 312, the front end of rearing-box plate 107 is connected on left plate 101 by the 15 revolute pair 319; The other end of G connecting rod 313 connects one end of H connecting rod 314 and one end of I connecting rod 315 by compound hinges 316, the other end of H connecting rod 314 connects front boxboard 106 by the 13 revolute pair 317, and front boxboard 106 is slidably arranged on left plate 101 by boxboard rail plate 320; The other end of I connecting rod 315 is connected on left plate 101 by the 14 revolute pair 318.Right side boxboard switching mechanism and left side boxboard switching mechanism are symmetrical set about symmetrical centre line L.
Cover plate rail plate 201 comprises first and determines slide rail and the first dynamic slide rail, first determines slide rail is fixed on left plate 101, first dynamic slide rail is fixed on the lower surface of front shroud 104, and the first dynamic slide rail is arranged on first removably determines on slide rail, make front shroud 104 can at the upper surface slide anteroposterior of left plate 101 and right plate 102; The structure of boxboard rail plate 320 is the same with the structure of cover plate rail plate 201.Boxboard rail plate 320 comprises second and determines slide rail 3201 and the second dynamic slide rail 3202, second determines the inner surface that slide rail 3201 is fixed on left plate 101, second dynamic slide rail 3202 is fixed on the lower surface of front boxboard 106 by f angle bar 3203, f angle bar 3203 is while be fixed by screws in the lower surface of front boxboard 106, another side is connected and fixed by screw and nut and the second dynamic slide rail 3202, second dynamic slide rail 3202 is arranged on second removably and determines on slide rail 3201, and slide anteroposterior on slide rail 3201 can be determined second, make front boxboard 106 can opposing left plate 101 slide anteroposterior.
The structure of the first revolute pair 202 is identical with the structure of the 4th revolute pair 207.4th revolute pair 207 is made up of band plummer block housing bearing 2071, bearing pin 2072, pad 2073 and U-shaped jump ring 2074, band plummer block housing bearing 2071 is provided with device aperture, and be fixed on back shroud 105 by screw and nut, bearing pin 2072 is through the through hole of B connecting rod 206 end with after being with plummer block housing bearing 2071, one end is located by the shaft shoulder, the other end carries out axial location by the U-shaped jump ring 2074 be arranged in axial trough, is provided with pad 2073 between U-shaped jump ring 2074 and B connecting rod 206.
Second revolute pair 204 is made up of pin, and the center of A connecting rod 203 has long slot bore, and pin is fixed on left plate 101 through long slot bore, and make A connecting rod 203 and pin linear contact lay, A connecting rod 203 can either move along this pin tangential direction, can rotate again around this pin.
The structure of the 3rd revolute pair 205 is identical with the structure of the 7th revolute pair, the 8th revolute pair, the tenth revolute pair.3rd revolute pair is made up of bearing pin 2051, improved mat 2052 and U-shaped jump ring 2053, bearing pin 2051 passes the through hole of the end of B connecting rod 206 and A connecting rod 203 successively, one end of bearing pin 2051 is located by the shaft shoulder, the other end carries out axial location by the U-shaped jump ring 2053 be arranged in axial trough, is also provided with improved mat 2052 between B connecting rod 206 and A connecting rod 203.
The structure of the 5th revolute pair 208 is identical with the structure of the 11 revolute pair the 311, the 12 revolute pair the 312, the 13 revolute pair 317.5th revolute pair 208 is made up of a angle bar 2081, bearing pin 2082, pad 2083 and U-shaped jump ring 2084, a angle bar 2081 while by screw and the fastening nuts lower surface at back shroud 105, another side is rotatably connected on left plate 101 by bearing pin 2082, back shroud 105 can be overturn centered by bearing pin 2082, and the outer end of bearing pin 2082 is also provided with pad 2083 and U-shaped reed 2084.11 revolute pair the 311 and the 12 revolute pair 312 comprises same c angle bar 3111, this c angle bar 3111 while be provided with two through holes, a through hole is connected with F connecting rod 310 by bearing pin, another through hole is connected with G connecting rod 313 by bearing pin, and the another side of this c angle bar 3111 is fixed by screws in the upper surface of rearing-box plate 107; 13 revolute pair 317 comprises being connected with H connecting rod 314 by bearing pin of d angle bar 3141, d angle bar 3141, upper surface that another side is fixed by screws in front boxboard 106.
6th revolute pair 301 comprises band diamond-type base bearing 3011, rotating shaft 3012, band plummer block housing bearing 3013, be fixed on the lower surface of pedal 302 by screw and nut with plummer block housing bearing 3013, the end of rotating shaft 3012 is arranged in band diamond-type base bearing 3011 through band plummer block housing bearing 3013, band diamond-type base bearing 3011 is fixed on left plate 101 by screw and nut, and band diamond-type base bearing 3011 and band plummer block housing bearing 3013 are all fixed on rotating shaft 3012 by the holding screw on bearing inner race.
Pedal 302 is fastened on C connecting rod 303 by b angle bar 3031, and b angle bar 3031 is fixed on the lower surface of pedal 302 by screw and nut, and another side is fixed on C connecting rod 303 one end by screw and nut.
The structure of the 9th revolute pair 308 is identical with the 14 revolute pair 318.9th revolute pair 308 comprises band diamond-type base bearing 3081 and bearing pin 3082, bearing pin 3082 is fixed in band diamond-type base bearing 3081 through the through hole in the middle part of E connecting rod 307, be fixedly connected with bearing pin 3082 by the holding screw on bearing inner race with diamond-type base bearing 3081, E connecting rod 307 can rotate around bearing pin 3082.
Compound hinges 316 is made up of bearing pin 3161, improved mat 3162 and U-shaped jump ring 3163, bearing pin 3161 is successively through the through hole of the end of H connecting rod 314, I connecting rod 315, G connecting rod 313, one end of bearing pin 3161 is located by the shaft shoulder, the other end carries out axial location by the U-shaped jump ring 3163 be arranged in axial trough, is equipped with improved mat 3162 between G connecting rod 313 and I connecting rod 315, between I connecting rod 315 and H connecting rod 314.
15 revolute pair 319 comprises band diamond-type base bearing 3191, back shaft 3192, shaft connecting bearing 3193, bearing holder (housing, cover) 3194, band diamond-type base bearing 3191 is fixed on left plate 101, the two ends of back shaft 3192 are connected in band diamond-type base bearing 3191, shaft connecting bearing 3193 is arranged on back shaft 3192 mid portion, shaft connecting bearing 3193 is located in bearing holder (housing, cover) 3194, and bearing holder (housing, cover) 3194 is fixed on rearing-box plate 107.
The bottom surface of case backboard 103 is provided with e angle bar 1031, e angle bar 1031 is concordant with the 15 revolute pair 319, and e angle bar 1031 is support angle, this support angle while be fixed on case backboard 103, another side stretches to the 15 revolute pair 319, for supporting rearing-box plate 107, and carry out spacing to rearing-box plate 107.
Method of operating of the present utility model:
Owing to have employed the design shown in Fig. 1-17, when student needs to get book from table body inside, both feet step on pedal 302 gently, and are with the hands pulled out forward by front shroud 104 gently;
When pedal 302 is pressed downward, the C connecting rod 303 be fixedly connected with the rear end of pedal 302 drives D connecting rod 305 to move downward by the 7th revolute pair 304, D connecting rod 305 drives one end of E connecting rod 307 to be rotated down by the 8th revolute pair 306, the other end of E connecting rod 307 rotates up around the 9th revolute pair, the other end of this E connecting rod 307 drives F connecting rod 310 to move upward by the tenth revolute pair 309, the rear end of rearing-box plate 107 is connected with F connecting rod 310 by the 11 revolute pair 311, as shown in Figure 2, F connecting rod 310 drives rearing-box plate 107 to be rotated counterclockwise around the 15 revolute pair 319 by the 11 revolute pair 311 through c angle bar 3111, simultaneously, because G connecting rod 313 and c angle bar 3111 hinge form the 12 revolute pair 312, c angle bar 3111 also drives G connecting rod 313 to do relative motion by the 12 revolute pair 312 while motion, G connecting rod 313, H connecting rod 314 and I connecting rod 315 are in compound hinges 316 place compound hinged, the 14 kinematic pair 318 hinge is passed through on left plate 101 in I connecting rod 315 one end, and under the acting in conjunction of G connecting rod 313 and I connecting rod 315, H connecting rod 314 is driven to travel forward, H connecting rod 314 promotes front boxboard 106 along boxboard rail plate 320 forward slip by the 13 revolute pair 317 and d angle bar 3141.
When student's both hands pull forward front shroud 104, front shroud 104 slips off forward along cover plate rail plate 201, front shroud 104 drives one end of A connecting rod 203 to travel forward by the first revolute pair 202, A connecting rod 203 is moved along the length direction of long slot bore, simultaneously, as shown in Figure 1, the other end of A connecting rod 203 turns clockwise around the second revolute pair 204, the other end of this A connecting rod 203 drives B connecting rod 206 to move backward by the 3rd revolute pair 205, B connecting rod 206 drives back shroud 105 to be rotated counterclockwise around the 5th revolute pair 208 by the 4th revolute pair 207, thus, student is while pulling open front shroud 104, back shroud 105 also opens backward, student can see any one corner before a body inside on boxboard 106 and rearing-box plate 107 complete display, namely student can when not bending over not convert sitting posture, easily open cover plate and get an article for body inside, rearing-box plate 107 turns forward simultaneously, better visual angle is provided to student, student is made to search books on rearing-box plate 107 faster.
After taking out the books or stationery wanted; slowly decontrol both feet; rearing-box plate 107 is namely because Action of Gravity Field is rotated down; and rotate in the support angle 1031 be fixed on rearing-box plate 107; automatic recovery initial position; simultaneously, boxboard 106 also slides in a body automatically, greatly facilitates student and gets book from table body inside and put book, protect the eyesight of student.Front shroud 104 pushes back by student gently backward, and back shroud 105 also overturns forward simultaneously, draws close closed, reconstitute one piece of whole desktop with front shroud 104.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. an ergonomic teaching equipment, comprise a body, the box plate that table body has two blocks of side plates, case backboard, cover plate and is positioned at below cover plate, it is characterized in that, cover plate comprises front shroud and back shroud, and box plate comprises front boxboard and rearing-box plate, and the front end of rearing-box plate is provided with front apron, table body is provided with cover plate slide switching mechanism and boxboard switching mechanism, wherein:
Cover plate slide switching mechanism comprises the identical left slide open-and-close mechanism of structure and right side slide switching mechanism, and left slide open-and-close mechanism and right side slide switching mechanism symmetry are installed on a body both sides, left slide open-and-close mechanism comprises: cover plate rail plate, A connecting rod and B connecting rod, front shroud is slidably arranged on side plate by cover plate rail plate, A connecting rod one end is connected with front shroud by the first revolute pair, the middle part of A connecting rod has long slot bore, and A connecting rod is connected on side plate by the second revolute pair be arranged in long slot bore, the A connecting rod other end connects B connecting rod one end by the 3rd revolute pair, the B connecting rod other end connects the front end of back shroud by the 4th revolute pair, this front end is the one end near front shroud, the back shroud other end is connected on side plate by the 5th revolute pair,
Boxboard switching mechanism comprises pedal, left side boxboard switching mechanism and right side boxboard switching mechanism, two ends, pedal left and right are connected on side plate by the 6th revolute pair, left side boxboard switching mechanism is identical with the structure of right side boxboard switching mechanism, and symmetry is installed on pedal both sides, left side boxboard switching mechanism comprises: C connecting rod, D connecting rod, E connecting rod, F connecting rod, G connecting rod, H connecting rod, I connecting rod and boxboard rail plate, C connecting rod one end is fixed on pedal, the other end connects one end of D connecting rod by the 7th revolute pair, the D connecting rod other end connects E connecting rod one end by the 8th revolute pair, be connected on side plate by the 9th revolute pair in the middle part of E connecting rod, the E connecting rod other end connects F connecting rod one end by the tenth revolute pair, the F connecting rod other end connects the rear end of rearing-box plate by the 11 revolute pair, this rear end is the one end near case backboard, the rear end of rearing-box plate also connects G connecting rod one end by the 12 revolute pair, the rearing-box plate other end is connected on side plate by the 15 revolute pair, the G connecting rod other end connects H connecting rod one end and I connecting rod one end by compound hinges, boxboard before the H connecting rod other end is connected by the 13 revolute pair, front boxboard is slidably arranged on side plate by boxboard rail plate, the I connecting rod other end is connected on side plate by the 14 revolute pair, case backboard is provided with the support angle concordant with the 15 revolute pair for supporting rearing-box plate.
2. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the first described revolute pair is identical with the structure of the 4th revolute pair, first revolute pair comprises band plummer block housing bearing, bearing pin, pad and U-shaped jump ring, bearing pin one end is fixed in band plummer block housing bearing, the other end is provided with U-shaped jump ring, is provided with pad between bearing pin and U-shaped jump ring.
3. a kind of ergonomic teaching equipment according to claim 1, is characterized in that, the second described revolute pair comprises pin.
4. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the 3rd described revolute pair and the 7th revolute pair, the 8th revolute pair, the tenth revolute pair are identical with the structure of compound hinges, 3rd revolute pair comprises bearing pin, improved mat and U-shaped jump ring, and U-shaped jump ring is located at bearing pin one end.
5. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the 5th described revolute pair is identical with the structure of the 11 revolute pair, the 12 revolute pair, 5th revolute pair comprises angle bar, bearing pin, pad and U-shaped jump ring, bearing pin is located at one side of angle bar, and bearing pin is provided with U-shaped jump ring.
6. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the 6th described revolute pair comprises band diamond-type base bearing, rotating shaft, band plummer block housing bearing, band diamond-type base bearing is fixed on side plate, band plummer block housing bearing is fixed on pedal, and the two ends of rotating shaft are fixed in band diamond-type base bearing through band plummer block housing bearing.
7. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the 9th described revolute pair is identical with the structure of the 14 revolute pair, and the 9th revolute pair comprises the band diamond-type base bearing be fixed on side plate and the bearing pin be fixed in band diamond-type base bearing.
8. a kind of ergonomic teaching equipment according to claim 1, it is characterized in that, the 15 described revolute pair comprises bearing holder (housing, cover), shaft connecting bearing, back shaft, band diamond-type base bearing, bearing holder (housing, cover) is fixed on front apron, shaft connecting bearing is arranged in bearing holder (housing, cover), and being arranged on back shaft, the two ends of back shaft are fixed in band diamond-type base bearing, and band diamond-type base bearing is fixed on biside plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429448.5U CN204708290U (en) | 2015-06-19 | 2015-06-19 | A kind of ergonomic teaching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429448.5U CN204708290U (en) | 2015-06-19 | 2015-06-19 | A kind of ergonomic teaching equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204708290U true CN204708290U (en) | 2015-10-21 |
Family
ID=54307330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520429448.5U Withdrawn - After Issue CN204708290U (en) | 2015-06-19 | 2015-06-19 | A kind of ergonomic teaching equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204708290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873000A (en) * | 2015-06-19 | 2015-09-02 | 陈梓川 | Human engineering teaching equipment and control method thereof |
| CN108199277A (en) * | 2018-02-23 | 2018-06-22 | 济南中铁重工轨道装备有限公司 | A kind of shield body soil storehouse electrical path Special electricity getting box |
-
2015
- 2015-06-19 CN CN201520429448.5U patent/CN204708290U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873000A (en) * | 2015-06-19 | 2015-09-02 | 陈梓川 | Human engineering teaching equipment and control method thereof |
| CN108199277A (en) * | 2018-02-23 | 2018-06-22 | 济南中铁重工轨道装备有限公司 | A kind of shield body soil storehouse electrical path Special electricity getting box |
| CN108199277B (en) * | 2018-02-23 | 2024-03-22 | 济南重工集团有限公司 | Special electricity taking box for electric channel of shield body soil bin |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20160302 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |