CN112258966B - Multifunctional automobile teaching aid display device - Google Patents
Multifunctional automobile teaching aid display device Download PDFInfo
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- CN112258966B CN112258966B CN202011283969.6A CN202011283969A CN112258966B CN 112258966 B CN112258966 B CN 112258966B CN 202011283969 A CN202011283969 A CN 202011283969A CN 112258966 B CN112258966 B CN 112258966B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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Abstract
The invention discloses a multifunctional automobile teaching aid display device which comprises a rectangular base, wherein an automatic opening mechanism is arranged above the rectangular base, a display stand lifting mechanism is arranged at the upper end of the rectangular base, a multi-angle display mechanism is arranged at the center of the upper surface of the rectangular base, and a mechanical locking mechanism is arranged above the rectangular base. The mould lifting device has the advantages that the mould can be rotated in multiple angles, the effect of omnibearing observation is achieved, the operation of repeated manual carrying of the mould can be omitted by lifting the mould, the effects of time saving and labor saving are achieved, and the model can be automatically folded up when not displayed through the effect of the automatic opening mechanism.
Description
Technical Field
The invention relates to the technical field of automobile teaching aids, in particular to a multifunctional automobile teaching aid display device.
Background
The automobile teaching aid model is used for people to know the teaching aid of automobile structure and theory of operation more directly perceivedly, is used for relevant training mechanism to study the student generally, and common automobile teaching aid model is for example engine model, differential mechanism model etc..
The automobile teaching aid manufacturer needs to use the display platform in an exhibition hall or when needing to participate in an exhibition, long-distance and large-quantity movement is needed in the period, the traditional display platform is inconvenient to move and needs to be manually aligned when displaying every time, and great manpower is consumed; the patent number is 201820655796.8 patent name and is a patent of automobile teaching aid show car, and turned angle is comparatively single during its show model, can not the omnidirectional observe the model to the device can not play the guard action to the model, deposits the easy dust that produces for a long time.
Disclosure of Invention
Aiming at the defects, the invention provides a multifunctional automobile teaching aid display device to solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multifunctional automobile teaching aid display device comprises a rectangular base, wherein an automatic opening mechanism is arranged above the rectangular base, a display stand lifting mechanism is arranged at the upper end of the rectangular base, a multi-angle display mechanism is arranged at the center of the upper surface of the rectangular base, and a mechanical locking mechanism is arranged above the rectangular base;
the exhibition stand lifting mechanism comprises an annular box body on the upper surface of a rectangular base, wherein a polygonal opening is formed in the upper surface of the annular box body, a first through hole is formed in the lower surface of the annular box body, three first through holes are formed in the lower surface of the annular box body, the annular box body is in a state of being communicated with the rectangular base through the first through holes, a first vertical bearing is arranged on the side surface of the upper end of the annular box body, a first horizontal bearing is arranged on the upper surface of the lower end of the rectangular base, a first transmission shaft is arranged between the first horizontal bearing and the first vertical bearing, the first transmission shaft corresponds to the first through holes in position, a first toothed belt wheel is arranged on the side surface of the lower end of the transmission shaft, three first toothed belts are respectively arranged at the lower end of the first transmission shaft, one toothed belt is arranged on the surface of one side of the first toothed belt, the first toothed belt is mutually meshed with the first toothed belt, pinch rollers are arranged on the upper surface of the lower end of the rectangular base and correspond to the positions of the first toothed belt, and a first bevel gear is arranged at the lower end of the first bevel gear, one bevel gear is arranged; the upper end of the first transmission shaft is provided with a first threaded shaft, one side of the first threaded shaft is provided with an annular fixing frame, the upper surface of the annular fixing frame is provided with a threaded through hole, the threaded through hole is mutually meshed with the first threaded shaft, the side surface of the annular fixing frame is provided with a T-shaped slideway, one end of the T-shaped slideway is provided with a common bearing, the common bearing is in sliding connection with the T-shaped slideway, the inner ring of the common bearing is provided with a connecting shaft, one end of the connecting shaft is fixedly connected with the common bearing, the other end of the connecting shaft is provided with an annular platform, the side surface of the annular platform is fixedly connected with the connecting shaft, the inner ring of the annular platform is provided with a first gear ring, the inner ring of the annular platform is provided with a limiting groove, one side surface of the gear ring is provided with a limiting block, the inner ring of the annular platform is provided with a limiting ring, a first compression spring is arranged between the limiting ring and the first gear ring, and the upper surface of the annular platform is provided with a circular groove, a second bearing is arranged at the center of the lower surface of the circular groove, a first support shaft is arranged on the inner surface of the second bearing, a rotating table is arranged at the upper end of the first support shaft, a first toothed ring is arranged on the side surface of the rotating table, and a second toothed ring meshed with the first toothed ring is arranged on the upper surface of the T-shaped slideway; a first rectangular opening is formed in the side surface of the upper end of the annular box body, a second support shaft is installed at the lower end of the first rectangular opening, third bearings are installed on the surfaces of two sides of the second support shaft, and second bevel gears are installed on the outer surfaces of the third bearings;
the multi-angle display mechanism comprises an annular fixed cylinder arranged at the center of the upper surface of a rectangular base, a rectangular sliding groove is formed in the inner side surface of the annular fixed cylinder, a sliding cylinder is arranged on the inner surface of the annular fixed cylinder, a rectangular sliding strip is arranged on the side surface of the sliding cylinder and is in sliding connection with the rectangular sliding groove, a threaded groove is formed in the side surface of the sliding cylinder, a through hole II is formed in the upper surface of the rectangular base, two through holes II are formed, a bearing IV is arranged on the inner surface of the through hole II, a rotating shaft is arranged on the inner surface of the bearing IV, a threaded shaft II is arranged at the upper end of the rotating shaft and is meshed with the threaded groove, a toothed belt II is arranged at the lower end of the rotating shaft, toothed belts II are arranged on the surfaces of two sides of the toothed belt II, two ends of the toothed belt II are meshed with the toothed belt II, a toothed belt wheel III is arranged at the lower end of the transmission shaft, and a toothed belt III is arranged between the toothed belt wheel III and the toothed belt wheel II; the center of the upper surface of the sliding cylinder is provided with a first round hole, one side of the round hole is provided with a forked support, the center of the forked support is provided with a second horizontal bearing, the upper end of the second horizontal bearing is provided with a circular exhibition stand, the circular exhibition stand is fixedly connected with the inner ring of the second horizontal bearing, the lower surface of the circular exhibition stand is provided with a second gear ring, the side surface of the sliding cylinder is provided with a fixed rod, one end of the fixed rod is provided with a fifth bearing, the upper surface of the lower end of the sliding cylinder is provided with a sixth bearing, a second transmission shaft is arranged between the sixth bearing and the fifth bearing, the upper end of the second transmission shaft is provided with a fourth bevel gear meshed with the second gear ring, and the lower end of the second transmission shaft is provided with a fifth bevel gear; the upper surface of the sliding cylinder is provided with a gear ring III, the upper surface of the circular exhibition stand is provided with a hollow column, the lower end side surface of the hollow column is provided with a round hole II, the inner surface of the round hole II is provided with a roller bearing I, the inner surface of the roller bearing I is provided with a rotating rod I, one end of the rotating rod is provided with a driven gear I meshed with the gear ring III, one side surface of the driven gear is provided with a driven gear I, the upper end of the hollow column is provided with a round hole III, the upper end side surface of the hollow column is provided with a hollow rod, two ends of the hollow rod are provided with roller bearings II, inner rings of the roller bearings II are provided with rotating rods II, one end of the rotating rod II is provided with a driven gear II, a connecting belt is arranged between the driven gear II and the driven gear I, the other end of the rotating rod II is provided with a fixed claw, one end of the fixed claw is provided with a threaded hole, a bolt is arranged in the threaded hole, one end of the bolt is provided with a rubber pad, and the rubber pad is spherically hinged with the bolt;
the mechanical locking mechanism comprises a slide rail on the lower surface of the upper end of the rectangular base, a motor base is mounted on one side of the slide rail and is in sliding connection with the slide rail, a stepping motor is mounted on the lower surface of the motor base, a hydraulic telescopic rod is mounted on one side of the slide rail, the telescopic end of the hydraulic telescopic rod is fixedly connected with the motor base, a first pin shaft is mounted on the lower surface of the stepping motor, a second pin shaft is mounted on the side surface of the stepping motor, and a first rectangular groove is formed in the upper end of the second pin shaft; surface mounting has the fixing base on the rectangular base lower extreme, the fixing base is equipped with two, it has the rectangle through-hole to open the fixing base upper end, rectangle through-hole internal surface mounting has the rectangle slide bar, open at rectangle slide bar upper surface both ends has the sliding tray, the sliding block is installed to sliding tray one end, sliding block side surface mounting has compression spring two, surface mounting has the arc gear on the sliding block, the output shaft is installed at the step motor both ends, sleeve pipe one is installed to output shaft one end, sleeve pipe two is installed to sleeve pipe one end, the rectangular block is installed to two one ends of sleeve pipe, rectangular block and sleeve pipe one sliding connection, the action wheel is installed to sleeve pipe one end, install compression spring three between rectangular block and the sleeve pipe one.
Furthermore, the automatic opening mechanism comprises a plurality of supporting seats on one side of the polygonal opening, a trapezoidal cover plate is mounted on one side of each supporting seat, a torsion spring is mounted between each trapezoidal cover plate and each supporting seat, pulleys are mounted on the side surface of the annular box body, positioning shafts of the pulleys are fixedly connected with the annular box body, elastic rubber bands are mounted on the upper surfaces of the trapezoidal cover plates and fixedly connected with the annular fixing frame through the pulleys; the side surface of the annular fixed cylinder is provided with a gear hole, a transmission gear is arranged in the gear hole, the outer surface of the sliding cylinder is provided with a first rack, the first rack is meshed with the transmission gear, the outer surface of the annular fixed cylinder is provided with a lifting cylinder, the side surface of the lifting cylinder is provided with a second rack, the second rack is meshed with the transmission gear, and the upper end of the lifting cylinder is provided with an arc-shaped rubber plate.
Furthermore, square holes are formed in the upper surface of the rectangular base and the lower surface of the sliding cylinder, a roller bearing five is installed at the lower end of the rectangular base, a roller bearing six is installed on an inner ring of each square hole, one roller bearing is arranged between each roller bearing six and the corresponding roller bearing five, a vertical shaft I is slidably connected with the roller bearing six, transmission teeth I are installed at the upper end of each vertical shaft I, horizontal bearings IV are installed on the upper surface and the lower surface of the rectangular base respectively, vertical shafts II are installed on the inner surfaces of the horizontal bearings IV, transmission teeth II meshed with bevel gears II are installed at the upper ends of the vertical shafts II, and driven wheels IV are installed at the lower ends of the vertical shafts II.
Furthermore, belt pulleys are respectively installed at the lower ends of the first vertical shaft and the second vertical shaft, a triangular belt is installed on one side of each belt pulley, and two ends of each triangular belt are connected with the belt pulleys in a sleeved mode.
Further, an arc-shaped guide plate is installed at the upper end of the annular box body.
Furthermore, the second toothed belt wheel is a double grooved wheel.
Furthermore, the four corners of the rectangular base are provided with movable wheels.
Furthermore, a long hole is formed in the side surface of the annular box body, a contact switch is installed at the upper end of the long hole, a fixing ring is installed on the side surface of the annular box body, an L-shaped rod is installed on the inner surface of the fixing ring, and the lower end of the L-shaped rod corresponds to the first rectangular groove in position.
The invention has the beneficial effects that: can carry out multi-angle rotating to the mould, reach the effect of all-round observation, can save the manual work through the lift to the mould and carry its operation repeatedly, reach the effect of labour saving and time saving, can make the model pack up when not showing automatically through automatic opening mechanism's effect.
Drawings
FIG. 1 is a schematic structural diagram of a multifunctional automobile teaching aid display device according to the present invention;
FIG. 2 is a schematic top view of the puck;
FIG. 3 is a partial schematic view of the display stand lifting mechanism;
FIG. 4 is a schematic top view of an annular stationary barrel;
FIG. 5 is a schematic top view of the annular platform;
FIG. 6 is an enlarged schematic view of the slide cartridge;
FIG. 7 is a schematic top view of a second toothed pulley;
FIG. 8 is a schematic top view of a polygonal opening;
FIG. 9 is a first schematic view of a portion of an automatic opening mechanism;
FIG. 10 is a first schematic view of a mechanical locking mechanism;
FIG. 11 is a schematic view of a rectangular slide bar;
FIG. 12 is a cutaway schematic view of the slide rail;
FIG. 13 is a schematic view of a cutaway of a first ring gear;
FIG. 14 is a top schematic view of the ring gear I;
FIG. 15 is a second schematic view of the mechanical locking mechanism;
FIG. 16 is a partial schematic view one of a multi-angle display mechanism;
FIG. 17 is a second schematic view of a portion of the automatic opening mechanism;
FIG. 18 is a second schematic view of a multi-angle display mechanism;
FIG. 19 is an enlarged schematic view of bevel gear two;
FIG. 20 is a cut-away schematic view of the slider block;
FIG. 21 is a sectional view of the second rack;
in the figure, 1, a rectangular base; 2. an annular box body; 3. a polygonal opening; 4. a first through hole; 5. a first vertical bearing; 6. a first horizontal bearing; 7. a first transmission shaft; 8. a toothed belt wheel I; 9. a toothed belt I; 10. a pinch roller; 11. a first bevel gear; 12. a first threaded shaft; 13. an annular fixing frame; 14. a threaded through hole; 15. a T-shaped slideway; 16. a plain bearing; 17. a connecting shaft; 18. an annular platform; 19. a first gear ring; 20. a limiting groove; 21. a limiting block; 22. a limiting ring; 23. a first compression spring; 24. a circular groove; 25. a second bearing; 26. a first support shaft; 27. a rotating table; 28. a first toothed ring; 29. a second gear ring; 30. a first rectangular opening; 31. a second support shaft; 32. a third bearing; 33. a second bevel gear; 34. an annular fixed cylinder; 35. a rectangular chute; 36. a sliding cylinder; 37. a rectangular slide bar; 38. a thread groove; 39. a second through hole; 40. a bearing IV; 41. a rotating shaft; 42. a second threaded shaft; 43. a toothed belt wheel II; 44. a toothed belt II; 45. a toothed belt wheel III; 46. a toothed belt III; 47. a first round hole; 48. a bifurcated stent; 49. a second horizontal bearing; 50. a circular exhibition stand; 51. a gear ring II; 52. fixing the rod; 53. a fifth bearing; 54. a sixth bearing; 55. a second transmission shaft; 56. a fourth bevel gear; 57. a fifth bevel gear; 58. a gear ring III; 59. a hollow column; 60. a second round hole; 61. a roller bearing I; 62. rotating the first rod; 63. a first driven gear; 64. a driven wheel I; 65. a third round hole; 66. a hollow shaft; 67. a roller bearing II; 68. rotating the second rod; 69. a second driven wheel; 70. a connecting belt; 71. a fixed jaw; 72. a threaded hole; 73. a bolt; 74. a rubber pad; 75. a slide rail; 76. a motor base; 77. a stepping motor; 78. a hydraulic telescopic rod; 79. a first pin shaft; 80. a second pin shaft; 81. a first rectangular groove; 82. a fixed seat; 83. a rectangular through hole; 84. a rectangular slide bar; 85. a sliding groove; 86. a slider; 87. a second compression spring; 88. an arc gear; 89. an output shaft; 90. a first sleeve; 91. a second sleeve; 92. a rectangular block; 93. a third compression spring; 94. an L-shaped rod; 95. a supporting seat; 96. a trapezoidal cover plate; 97. a torsion spring; 98. a pulley; 99. elastic rubber band; 100. a gear hole; 101. a transmission gear; 102. a first rack; 103. a lifting cylinder; 104. a second rack; 105. a square hole; 106. a roller bearing V; 107. an arc-shaped rubber plate; 108. a roller bearing six; 109. a first vertical shaft; 110. a fixing ring; 111. a first transmission gear; 112. a horizontal bearing IV; 113. a second vertical shaft; 114. a second transmission gear; 115. a belt pulley; 116. a V-belt; 117. an arc-shaped guide plate; 118. a moving wheel; 119. a long hole; 120. a contact switch; 121. a driving wheel; 122. and a fourth driven wheel.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, and as shown in fig. 1-21, the multifunctional automobile teaching aid display device comprises a rectangular base 1, wherein an automatic opening mechanism is arranged above the rectangular base 1, a display stand lifting mechanism is arranged at the upper end of the rectangular base 1, a multi-angle display mechanism is arranged at the center of the upper surface of the rectangular base 1, and a mechanical locking mechanism is arranged above the rectangular base 1;
the exhibition stand lifting mechanism comprises an annular box body 2 on the upper surface of a rectangular base 1, the upper surface of the annular box body 2 is provided with a polygonal opening 3, the lower surface of the annular box body 2 is provided with a first through hole 4, the number of the first through holes 4 is three, the annular box body 2 is in a state of communicating with the rectangular base 1 through the first through hole 4, the upper end side surface of the annular box body 2 is provided with a first vertical bearing 5, the lower end upper surface of the rectangular base 1 is provided with a first horizontal bearing 6, a first transmission shaft 7 is arranged between the first horizontal bearing 6 and the first vertical bearing 5, the position of the first transmission shaft 7 corresponds to that of the first through hole 4, the lower end side surface of the first transmission shaft 7 is provided with a first toothed belt wheel 8, the first toothed belt wheels 8 are provided with three parts and are respectively arranged at the lower end of the first transmission shaft 7, the side surface of the first toothed belt 8 is provided with a first toothed belt 9, the first toothed belt 9 is mutually meshed with the first toothed belt wheel 8, and the upper end upper surface of the rectangular base 1 is provided with a pinch roller 10, the pressing wheels 10 are three and correspond to the toothed belt I9 in position, a bevel gear I11 is mounted at the lower end of the transmission shaft I7, and one bevel gear I11 is arranged; the upper end of a transmission shaft I7 is provided with a threaded shaft I12, one side of the threaded shaft I12 is provided with an annular fixing frame 13, the upper surface of the annular fixing frame 13 is provided with a threaded through hole 14, the threaded through hole 14 is mutually meshed with the threaded shaft I12, the side surface of the annular fixing frame 13 is provided with a T-shaped slideway 15, one end of the T-shaped slideway 15 is provided with a common bearing 16, the common bearing 16 is in sliding connection with the T-shaped slideway 15, the inner ring of the common bearing 16 is provided with a connecting shaft 17, one end of the connecting shaft 17 is fixedly connected with the common bearing 16, the other end of the connecting shaft 17 is provided with an annular platform 18, the side surface of the annular platform 18 is fixedly connected with the connecting shaft 17, the inner ring of the annular platform 18 is provided with a gear ring I19, the inner ring of the annular platform 18 is provided with a limiting groove 20, the side surface of the gear ring I19 is provided with a limiting block 21, the limiting block 21 is in sliding connection with the limiting groove 20, the inner ring of the annular platform 18 is provided with a limiting ring 22, and a compression spring I23 is arranged between the limiting ring 22 and the gear ring I19, the upper surface of the annular platform 18 is provided with a circular groove 24, the center of the lower surface of the circular groove 24 is provided with a second bearing 25, the inner surface of the second bearing 25 is provided with a first support shaft 26, the upper end of the first support shaft 26 is provided with a rotating platform 27, the side surface of the rotating platform 27 is provided with a first toothed ring 28, and the upper surface of the T-shaped slideway 15 is provided with a second toothed ring 29 which is meshed with the first toothed ring 28; a first rectangular opening 30 is formed in the side surface of the upper end of the annular box body 2, a second support shaft 31 is installed at the lower end of the first rectangular opening 30, a third bearing 32 is installed on the side surface of the second support shaft 31, and a second bevel gear 33 is installed on the outer surface of the third bearing 32;
the multi-angle display mechanism comprises an annular fixed cylinder 34 arranged at the center of the upper surface of a rectangular base 1, a rectangular sliding groove 35 is formed in the inner side surface of the annular fixed cylinder 34, a sliding cylinder 36 is arranged on the inner surface of the annular fixed cylinder 34, a rectangular sliding strip 37 is arranged on the side surface of the sliding cylinder 36 and is in sliding connection with the rectangular sliding groove 35, a threaded groove 38 is arranged on the side surface of the sliding cylinder 36, a second through hole 39 is formed in the upper surface of the rectangular base 1, two through holes 39 are formed in the second through hole 39, a fourth bearing 40 is arranged on the inner surface of the second through hole 39, a rotating shaft 41 is arranged on the inner surface of the fourth bearing 40, a second threaded shaft 42 is arranged at the upper end of the rotating shaft 41, the second threaded shaft 42 is meshed with the threaded groove 38, a second toothed belt wheel 43 is arranged at the lower end of the rotating shaft 41, a second toothed belt 44 is arranged on the side surface of the second toothed belt 43, two ends of the toothed belt wheel 43 are meshed with each other, and a third toothed belt wheel 45 is arranged at the lower end of the first transmission shaft 7, a third toothed belt 46 is arranged between the third toothed belt wheel 45 and the second toothed belt wheel 43; a first round hole 47 is formed in the center of the upper surface of the sliding cylinder 36, a forked support 48 is mounted on one side of the first round hole 47, a second horizontal bearing 49 is mounted in the center of the forked support 48, a circular exhibition stand 50 is mounted at the upper end of the second horizontal bearing 49, the circular exhibition stand 50 is fixedly connected with the inner ring of the second horizontal bearing 49, a second gear ring 51 is mounted on the lower surface of the circular exhibition stand 50, a fixing rod 52 is mounted on the side surface of the sliding cylinder 36, a fifth bearing 53 is mounted at one end of the fixing rod 52, a sixth bearing 54 is mounted on the upper surface of the lower end of the sliding cylinder 36, a second transmission shaft 55 is mounted between the sixth bearing 54 and the fifth bearing 53, a fourth bevel gear 56 meshed with the second gear ring 51 is mounted at the upper end of the second transmission shaft 55, and a fifth bevel gear 57 is mounted at the lower end of the second transmission shaft 55; the upper surface of the sliding cylinder 36 is provided with a gear ring III 58, the upper surface of the circular exhibition stand 50 is provided with a hollow column 59, the lower end side surface of the hollow column 59 is provided with a circular hole II 60, the inner surface of the circular hole II 60 is provided with a roller bearing I61, the inner surface of the roller bearing I61 is provided with a rotating rod I62, one end of the rotating rod I62 is provided with a driven gear I63 which is meshed with the gear ring III 58, the side surface of the driven gear I63 is provided with a driven wheel I64, the upper end of the hollow column 59 is provided with a circular hole III 65, the upper end side surface of the hollow column 59 is provided with a hollow rod 66, two ends of the hollow rod 66 are provided with roller bearings II 67, the inner ring of the roller bearings II 67 is provided with a rotating rod II 68, one end of the rotating rod II 68 is provided with a driven wheel II 69, a connecting belt 70 is arranged between the driven wheel II 69 and the driven wheel I64, the other end of the rotating rod II 68 is provided with a fixed claw 71, one end of the fixed claw 71 is provided with a threaded hole 72, and a bolt 73 is arranged in the threaded hole 72, one end of the bolt 73 is provided with a rubber pad 74, and the rubber pad 74 is in spherical hinge joint with the bolt 73;
the mechanical locking mechanism comprises a sliding rail 75 arranged on the lower surface of the upper end of the rectangular base 1, a motor base 76 is arranged on one side of the sliding rail 75, the motor base 76 is connected with the sliding rail 75 in a sliding mode, a stepping motor 77 is arranged on the lower surface of the motor base 76, a hydraulic telescopic rod 78 is arranged on one side of the sliding rail 75, the telescopic end of the hydraulic telescopic rod 78 is fixedly connected with the motor base 76, a first pin shaft 79 is arranged on the lower surface of the stepping motor 77, a second pin shaft 80 is arranged on the side surface of the stepping motor 77, and a first rectangular groove 81 is formed in the upper end of the second pin shaft 80; surface mounting has fixing base 82 on the 1 lower extreme of rectangle base, fixing base 82 is equipped with two, it has rectangle through-hole 83 to open the fixing base 82 upper end, rectangle slide bar 84 of surface mounting has rectangle slide bar 83, open at rectangle slide bar 84 upper surface both ends has sliding tray 85, sliding block 86 is installed to sliding tray 85 one end, sliding block 86 side surface mounting has two compression spring 87, sliding block 86 upper surface mounting has arc gear 88, output shaft 89 is installed at step motor 77 both ends, sleeve one 90 is installed to output shaft 89 one end, sleeve two 91 are installed to sleeve one 90 one end, rectangular block 92 is installed to sleeve two 91 one end, rectangular block 92 and sleeve one 90 sliding connection, action wheel 121 is installed to sleeve one 90 one end, install compression spring three 93 between rectangular block 92 and the sleeve one 90.
The automatic opening mechanism comprises a plurality of supporting seats 95 on one side of the polygonal opening 3, a trapezoidal cover plate 96 is mounted on one side of each supporting seat 95, a torsion spring 97 is mounted between each trapezoidal cover plate 96 and each supporting seat 95, a pulley 98 is mounted on the side surface of the annular box body 2, a positioning shaft of each pulley 98 is fixedly connected with the annular box body 2, an elastic rubber band 99 is mounted on the upper surface of each trapezoidal cover plate 96, and the elastic rubber band 99 is fixedly connected with the annular fixing frame 13 through the pulleys 98; the side surface of the annular fixed cylinder 34 is provided with a gear hole 100, a transmission gear 101 is arranged in the gear hole 100, the outer surface of the sliding cylinder 36 is provided with a first rack 102, the first rack 102 is mutually meshed with the transmission gear 101, the outer surface of the annular fixed cylinder 34 is provided with a lifting cylinder 103, the side surface of the lifting cylinder 103 is provided with a second rack 104, the second rack 104 is mutually meshed with the transmission gear 101, and the upper end of the lifting cylinder 103 is provided with an arc-shaped rubber plate 107.
The upper surface of the rectangular base 1 and the lower surface of the sliding cylinder 36 are provided with square holes 105, the lower end of the rectangular base 1 is provided with a roller bearing five 106, the inner ring of each square hole 105 is provided with a roller bearing six 108, one roller bearing six 108 is arranged, a vertical shaft one 109 is arranged between the roller bearing six 108 and the roller bearing five 106, the vertical shaft one 109 is in sliding connection with the roller bearing six 108, the upper end of the vertical shaft one 109 is provided with a transmission gear one 111, the upper surface and the lower surface of the rectangular base 1 are respectively provided with a horizontal bearing four 112, the inner surface of the horizontal bearing four 112 is provided with a vertical shaft two 113, the upper end of the vertical shaft two 113 is provided with a transmission gear two 114 which is mutually meshed with a bevel gear two 33, and the lower end of the vertical shaft two 113 is provided with a driven wheel four 122;
the lower ends of the first vertical shaft 109 and the second vertical shaft 113 are respectively provided with a belt pulley 115, the side of the first belt pulley 110 is provided with a triangular belt 116, and two ends of the triangular belt 116 are sleeved and connected with the belt pulley 115.
An arc-shaped guide plate 117 is arranged at the upper end of the annular box body 2.
The second toothed pulley 43 is a double sheave.
The four corners of the rectangular base 1 are provided with moving wheels 118.
The side surface of the annular box body 2 is provided with a long hole 119, the upper end of the long hole 119 is provided with a contact switch 120, the side surface of the annular box body 2 is provided with a fixing ring 110, the inner surface of the fixing ring 110 is provided with an L-shaped rod 94, and the lower end of the L-shaped rod 94 corresponds to the position of the first rectangular groove 81.
In the embodiment, the electric equipment of the equipment is controlled by an external controller, the equipment can be pulled to move by a trailer hook, and when the annular platform 18 is at the highest position, various automobile teaching aids can be manually placed on the upper surface of the rotating platform 27 for display; when the rectangular base 1 moves to a designated position and needs to be displayed by an automobile teaching aid, the hydraulic telescopic rod 78 is in a contracted state, the driving wheel 121 close to one side of the bevel gear I11 is meshed with the bevel gear I11, the driving wheel 121 close to one side of the driven wheel IV 122 is separated from the driven wheel IV 122, the arc-shaped gear 88 at one side of the bevel gear I11 is separated from the bevel gear I11, and the arc-shaped gear 88 at the other side is meshed with the driven wheel IV 122 (as shown in fig. 10); the controller controls the stepping motor 77 to rotate, the rotation of the stepping motor 77 indirectly drives the first bevel gear 11 to rotate, the rotation of the first bevel gear 11 drives the first transmission shaft 7 to rotate, the rotation of the first transmission shaft 7 drives the first toothed belt wheel 8 to rotate, the rotation of the first toothed belt wheel 8 can drive the first other two toothed belt wheels 8 to rotate through the transmission of the first toothed belt 9 and simultaneously drive the first other two transmission shafts 7 to rotate, at the moment, the first three transmission shafts 7 are in a synchronous state, the rotation of the first transmission shaft 7 drives the first threaded shaft 12 to rotate, through the mutual meshing effect of the first threaded shaft 12 and the threaded through hole 14, the rotation of the first threaded shaft 12 drives the annular fixing frame 13 to ascend, and the ascending of the annular fixing frame 13 indirectly drives the rotating platform 27 to ascend;
the end annular fixed mount 13 in the ascending process can contact the L-shaped rod 94 and abut against the contact switch 120, then the stepping motor 77 stops rotating, the L-shaped rod 94 can slide up and down in a certain range under the action of the fixed ring 110, the first gear ring 19 is meshed with the second bevel gear 33 in advance at a small distance before abutting against the contact switch 120, the stepping motor 77 continues rotating, the first compression spring 23 is compressed at the moment, the first gear ring 19 is gradually attached to the second bevel gear 33 by the reverse acting force of the first compression spring 23, and the structure avoids rigid contact between the first gear ring 19 and the second bevel gear 33 and prevents slipping; when the annular fixing frame 13 starts to rise, the annular fixing frame 13 can pull the elastic rubber band 99, so that the trapezoidal cover plate 96 is pulled by the upper end of the elastic rubber band 99, the pulling force of the elastic rubber band 99 is far greater than the force of the torsion spring 97, when the elastic rubber band 99 is pulled, the elastic rubber band 99 does not elastically deform and pulls the trapezoidal cover plate 96 to open, when the trapezoidal cover plate 96 rotates 180 degrees, the trapezoidal cover plate 96 does not move, the elastic rubber band 99 deforms at the moment, the condition that the annular fixing frame 13 continues to rise is met, the setting can realize that the trapezoidal cover plate 96 is opened firstly when the annular fixing frame 13 rises to avoid interference between a teaching aid and the trapezoidal cover plate 96, and the trapezoidal cover plate 96 is closed after the annular fixing frame 13 falls;
when the annular platform 18 is lifted, the second toothed belt wheel 43 can be driven to rotate by the transmission effect of the third toothed belt wheel 45 driving the third toothed belt 46, and as the second toothed belt wheel 43 is a double-grooved wheel, when the power is switched on, the power can be transmitted to the other toothed belt wheel II 43 through the toothed belt II 44, the rotation of the toothed belt wheel II 43 drives the threaded shaft II 42 to rotate, the sliding cylinder 36 can be driven to slide upwards through the mutual engagement of the second threaded shaft 42 and the threaded groove 38, the sliding cylinder 36 can slide stably through the action of the rectangular sliding strip 37 and the rectangular sliding groove 35, when the sliding cylinder 36 slides upwards, the sliding cylinder 36 moves relative to the first vertical shaft 109 and the first transmission gear 111, the sliding cylinder 36 and the annular fixed frame 13 are in a synchronous state, when the sliding cylinder 36 slides to the uppermost end, the transmission gear I111 is meshed with the bevel gear five 57, and the roller bearing six 108 can make the rotation of the vertical shaft I109 more stable; interference between the fixing claws 71 and the hollow columns 59 and the arc-shaped rubber plates 123 can be prevented by reducing the size ratio of the fixing claws 71 and the hollow columns 59 to the whole device and properly adjusting the positions of the hollow columns 59; when the sliding cylinder 36 slides upwards, the transmission gear 101 is driven to rotate by the upward movement of the first rack 102, the second rack 104 is driven to move downwards by the rotation of the transmission gear 101, and the arc-shaped rubber plate 123 is driven to move downwards by the movement of the second rack 104, so that the effect of automatic opening is achieved;
when the annular fixed frame 13 and the sliding cylinder 36 rise to the uppermost end, at the moment, the bevel gear II 33 is meshed with the gear ring I19, the transmission gear I111 is meshed with the bevel gear V57, the upper end of the L-shaped rod 94 contacts the contact switch 120, the lower end of the L-shaped rod 94 is separated from the rectangular groove I81, so that the stepping motor 77 can move rightwards, the controller controls the hydraulic telescopic rod 78 to extend, the extension of the hydraulic telescopic rod 78 indirectly drives the stepping motor 77 to slide rightwards, the sliding of the stepping motor 77 drives the pin I79 to pull the rectangular sliding rod 84 to slide rightwards, and in order to prevent the bevel gear I11 from slightly rotating, the rectangular sliding rod 84 slides rightwards in two actions, namely the first action; the stepping motor 77 indirectly drives the second sleeve 91 to move rightwards, the third compression spring 93 extends to enable the driving wheel 121 to keep a meshed state with the first bevel gear 11, the rectangular sliding rod 84 slides rightwards to drive the arc-shaped gear 88 on one side to be meshed with the first bevel gear 11, the second compression spring 87 slightly compresses, and at the moment, the arc-shaped gear 88 and the driving wheel 121 are meshed with the first bevel gear 11 at the same time for the second action; the rectangular sliding rod 84 continues to move rightwards, the compression spring 93 does not extend and drives the driving wheel 121 to move rightwards, the driving wheel 121 is separated from the first bevel gear 11, and the compression spring II 87 continues to compress, so that the first bevel gear 11 is attached to the arc-shaped gear 88 more tightly; the problem that the bevel gear I11 rotates automatically when power is switched is solved; the driving wheel 121 close to one side of the driven wheel IV 122 has the same principle when cutting into power;
the teaching aid is placed in the center of the fixed claw 71, and the rubber pad 74 can be gradually clamped on the teaching aid by screwing the bolt 73; after the fourth driven wheel 122 cuts in power, the stepping motor 77 rotates, the rotation of the stepping motor 77 drives the second vertical shaft 113 and the belt pulley 115 to rotate, the rotation of the belt pulley 115 drives the first vertical shaft 109 and the second vertical shaft 113 to rotate, the rotation of the first vertical shaft 109 is meshed with the fifth bevel gear 57 through the first transmission gear 111, the second gear ring 51 is meshed with the fourth bevel gear 56 to indirectly drive the circular exhibition stand 50 to rotate, so that the circular exhibition stand 50 and the third gear ring 58 move relatively, the first driven gear 63 is driven to rotate while the relative movement occurs, the first driven gear 63 rotates to drive the first driven wheel 64 to rotate, the first driven wheel 64 rotates to drive the second driven wheel 69 and the second rotating wheel 68 to rotate through the connecting belt 70, and the second rotating wheel 68 rotates to drive the fixed claw 71 to rotate in the vertical direction; the second vertical shaft 113 rotates to drive the second transmission gear 114 to rotate, and the second bevel gear 33 rotates to drive the first gear ring 19 and the annular platform 18 to rotate, so that the rotating table 27 and the second gear ring 29 perform relative motion, and the rotating table 27 revolves while rotating; the common bearing 16 and the connecting shaft 17 play a role in supporting the annular platform 18 to rotate stably;
when the teaching aid needs to be collected, the stepping motor 77 stops rotating and moves leftwards, so that the L-shaped rod 94 corresponds to the first rectangular groove 81, the stepping motor 77 rotates reversely for a certain number of turns, and the annular fixing frame 13 is indirectly lowered to the bottom; the positioning shaft of the transmission gear 101 is connected with the gear hole 100 through a bearing.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (7)
1. A multifunctional automobile teaching aid display device comprises a rectangular base (1), wherein an automatic opening mechanism is arranged above the rectangular base (1), and the multifunctional automobile teaching aid display device is characterized in that a display stand lifting mechanism is arranged at the upper end of the rectangular base (1), a multi-angle display mechanism is arranged at the center of the upper surface of the rectangular base (1), and a mechanical locking mechanism is arranged above the rectangular base (1);
the exhibition stand lifting mechanism comprises an annular box body (2) on the upper surface of a rectangular base (1), polygonal openings (3) are formed in the upper surface of the annular box body (2), through holes I (4) are formed in the lower surface of the annular box body (2), three through holes I (4) are formed in the annular box body (2), the annular box body (2) and the rectangular base (1) are in an intercommunicated state through the through holes I (4), a vertical bearing I (5) is installed on the side surface of the upper end of the annular box body (2), a horizontal bearing I (6) is installed on the upper surface of the lower end of the rectangular base (1), a transmission shaft I (7) is installed between the horizontal bearing I (6) and the vertical bearing I (5), the transmission shaft I (7) corresponds to the through holes I (4), toothed belt wheels I (8) are installed on the side surface of the lower end of the transmission shaft I (7), three toothed belt wheels I (8) are arranged at the lower ends of the transmission shaft I (7) respectively, a toothed belt I (9) is arranged on the side surface of the toothed belt wheel I (8), the toothed belt I (9) is meshed with the toothed belt wheel I (8), three pressing wheels (10) are arranged on the upper surface of the lower end of the rectangular base (1) and correspond to the toothed belt I (9), a bevel gear I (11) is arranged at the lower end of the transmission shaft I (7), and one bevel gear I (11) is arranged; the upper end of the first transmission shaft (7) is provided with a first threaded shaft (12), one side of the first threaded shaft (12) is provided with an annular fixing frame (13), the upper surface of the annular fixing frame (13) is provided with a threaded through hole (14), the threaded through hole (14) is mutually meshed with the first threaded shaft (12), the side surface of the annular fixing frame (13) is provided with a T-shaped slideway (15), one end of the T-shaped slideway (15) is provided with a common bearing (16), the common bearing (16) is in sliding connection with the T-shaped slideway (15), the inner ring of the common bearing (16) is provided with a connecting shaft (17), one end of the connecting shaft (17) is fixedly connected with the common bearing (16), the other end of the connecting shaft (17) is provided with an annular platform (18), the side surface of the annular platform (18) is fixedly connected with the connecting shaft (17), the inner ring of the annular platform (18) is provided with a first gear ring (19), and the inner ring of the annular platform (18) is provided with a limiting groove (20), a limiting block (21) is arranged on the side surface of the first gear ring (19), the limiting block (21) is in sliding connection with a limiting groove (20), a limiting ring (22) is arranged at the inner ring of the annular platform (18), a first compression spring (23) is arranged between the limiting ring (22) and the first gear ring (19), a circular groove (24) is formed in the upper surface of the annular platform (18), a second bearing (25) is arranged at the center of the lower surface of the circular groove (24), a first support shaft (26) is arranged on the inner surface of the second bearing (25), a rotating table (27) is arranged at the upper end of the first support shaft (26), a first gear ring (28) is arranged on the side surface of the rotating table (27), and a second gear ring (29) which is meshed with the first gear ring (28) is arranged on the upper surface of the T-shaped slide way (15); a first rectangular opening (30) is formed in the side surface of the upper end of the annular box body (2), a second support shaft (31) is installed at the lower end of the first rectangular opening (30), a third bearing (32) is installed on the side surface of the second support shaft (31), and a second bevel gear (33) is installed on the outer surface of the third bearing (32);
the multi-angle display mechanism comprises an annular fixed cylinder (34) arranged at the center of the upper surface of a rectangular base (1), a rectangular sliding groove (35) is formed in the inner side surface of the annular fixed cylinder (34), a sliding cylinder (36) is arranged on the inner surface of the annular fixed cylinder (34), rectangular sliding strips (37) are arranged on the side surface of the sliding cylinder (36), the rectangular sliding strips (37) are slidably connected with the rectangular sliding groove (35), a threaded groove (38) is formed on the side surface of the sliding cylinder (36), two through holes (39) are formed in the upper surface of the rectangular base (1), two through holes (39) are arranged, a bearing four (40) is arranged on the inner surface of the through hole two (39), a rotating shaft (41) is arranged on the inner surface of the bearing four (40), a threaded shaft two (42) is arranged at the upper end of the rotating shaft (41), the threaded shaft two (42) is mutually meshed with the threaded groove (38), a toothed belt wheel two (43) is arranged at the lower end of the rotating shaft (41), the second toothed belt wheel (43) is a double-grooved wheel, the second toothed belt (44) is installed on the side surface of the second toothed belt wheel (43), two ends of the second toothed belt (44) are meshed with the second toothed belt wheel (43), the third toothed belt wheel (45) is installed at the lower end of the first transmission shaft (7), and the third toothed belt (46) is installed between the third toothed belt wheel (45) and the second toothed belt wheel (43); a first round hole (47) is formed in the center of the upper surface of the sliding cylinder (36), a forked support (48) is installed on one side of the first round hole (47), a second horizontal bearing (49) is installed in the center of the forked support (48), a circular exhibition stand (50) is installed at the upper end of the second horizontal bearing (49), the circular exhibition stand (50) is fixedly connected with the inner ring of the second horizontal bearing (49), a second gear ring (51) is installed on the lower surface of the circular exhibition stand (50), a fixing rod (52) is installed on the side surface of the sliding cylinder (36), a fifth bearing (53) is installed at one end of the fixing rod (52), a sixth bearing (54) is installed on the upper surface of the lower end of the sliding cylinder (36), a second transmission shaft (55) is installed between the sixth bearing (54) and the fifth bearing (53), a fourth bevel gear (56) meshed with the second gear ring (51) is installed at the upper end of the second transmission shaft (55), and a fifth bevel gear (57) is installed at the lower end of the second transmission shaft (55); the upper surface of the sliding cylinder (36) is provided with a gear ring III (58), the upper surface of the circular exhibition stand (50) is provided with a hollow column (59), the side surface of the lower end of the hollow column (59) is provided with a round hole II (60), the inner surface of the round hole II (60) is provided with a roller bearing I (61), the inner surface of the roller bearing I (61) is provided with a rotating rod I (62), one end of the rotating rod I (62) is provided with a driven tooth I (63) which is meshed with the gear ring III (58), the side surface of the driven tooth I (63) is provided with a driven wheel I (64), the upper end of the hollow column (59) is provided with a round hole III (65), the side surface of the upper end of the hollow column (59) is provided with a hollow rod (66), the two ends of the hollow rod (66) are provided with roller bearings II (67), the two inner rings (68) are arranged on the roller bearings II (67), the two ends of the driven wheels (69) are arranged on the two ends of the rotating rod (68), and a connecting belt (70) is arranged between the driven wheel II (69) and the driven wheel I (64), a fixed claw (71) is installed at the other end of the rotating rod II (68), a threaded hole (72) is formed in one end of the fixed claw (71), a bolt (73) is installed in the threaded hole (72), a rubber pad (74) is installed at one end of the bolt (73), and the rubber pad (74) is in spherical hinge joint with the bolt (73); the upper surface of the rectangular base (1) and the lower surface of the sliding cylinder (36) are provided with square holes (105), the lower end of the rectangular base (1) is provided with a roller bearing five (106), an inner ring of each square hole (105) is provided with a roller bearing six (108), one roller bearing six (108) is arranged, a vertical shaft I (109) is arranged between the roller bearing six (108) and the roller bearing five (106), the vertical shaft I (109) is in sliding connection with the roller bearing six (108), the upper end of the vertical shaft I (109) is provided with a transmission gear I (111), the upper surface and the lower surface of the rectangular base (1) are respectively provided with a horizontal bearing four (112), the inner surface of the horizontal bearing four (112) is provided with a vertical shaft II (113), the upper end of the vertical shaft II (113) is provided with a transmission gear II (114) which is meshed with a bevel gear II (33), and the lower end of the vertical shaft II (113) is provided with a driven wheel four (122);
the mechanical locking mechanism comprises a sliding rail (75) on the lower surface of the upper end of a rectangular base (1), a motor base (76) is mounted on one side of the sliding rail (75), the motor base (76) is connected with the sliding rail (75) in a sliding mode, a stepping motor (77) is mounted on the lower surface of the motor base (76), a hydraulic telescopic rod (78) is mounted on one side of the sliding rail (75), the telescopic end of the hydraulic telescopic rod (78) is fixedly connected with the motor base (76), a first pin shaft (79) is mounted on the lower surface of the stepping motor (77), a second pin shaft (80) is mounted on the side surface of the stepping motor (77), and a first rectangular groove (81) is formed in the upper end of the second pin shaft (80); the upper surface of the lower end of the rectangular base (1) is provided with two fixing seats (82), the upper end of each fixing seat (82) is provided with a rectangular through hole (83), the inner surface of each rectangular through hole (83) is provided with a rectangular sliding rod (84), the two ends of the upper surface of each rectangular sliding rod (84) are provided with sliding grooves (85), one end of each sliding groove (85) is provided with a sliding block (86), the side surface of each sliding block (86) is provided with a second compression spring (87), the upper surface of each sliding block (86) is provided with an arc-shaped gear (88), the two ends of each stepping motor (77) are provided with output shafts (89), one end of each output shaft (89) is provided with a first sleeve (90), one end of each first sleeve (90) is provided with a second sleeve (91), one end of each second sleeve (91) is provided with a rectangular block (92), the rectangular blocks (92) are in sliding connection with the first sleeve (90), one end of each first sleeve (90) is provided with a driving wheel (121), and a third compression spring (93) is arranged between the rectangular block (92) and the first sleeve (90).
2. The multifunctional automobile teaching aid display device according to claim 1, wherein the automatic opening mechanism comprises a plurality of supporting seats (95) on one side of the polygonal opening (3), a trapezoidal cover plate (96) is installed on one side of each supporting seat (95), a torsion spring (97) is installed between each trapezoidal cover plate (96) and each supporting seat (95), a pulley (98) is installed on the side surface of the annular box body (2), a positioning shaft of each pulley (98) is fixedly connected with the annular box body (2), an elastic rubber band (99) is installed on the upper surface of each trapezoidal cover plate (96), and each elastic rubber band (99) is fixedly connected with the annular fixing frame (13) through each pulley (98); the side surface of the annular fixed cylinder (34) is provided with a gear hole (100), transmission teeth (101) are arranged in the gear hole (100), a first rack (102) is arranged on the outer surface of the sliding cylinder (36), the first rack (102) is meshed with the transmission teeth (101), a lifting cylinder (103) is arranged on the outer surface of the annular fixed cylinder (34), a second rack (104) is arranged on the side surface of the lifting cylinder (103), the second rack (104) is meshed with the transmission teeth (101), and an arc-shaped rubber plate (107) is arranged at the upper end of the lifting cylinder (103).
3. The multifunctional automobile teaching aid display device according to claim 1, wherein a belt pulley (115) is mounted at the lower ends of the first vertical shaft (109) and the second vertical shaft (113), a triangular belt (116) is mounted on one side of the belt pulley (115), and two ends of the triangular belt (116) are connected with the belt pulley (115) in a sleeved mode.
4. The multifunctional automobile teaching aid display device according to claim 1, wherein an arc-shaped guide plate (117) is installed at the upper end of the annular box body (2).
5. The multi-purpose vehicle teaching aid display device of claim 1, wherein the second toothed pulley (43) is a double sheave.
6. The multifunctional automobile teaching aid display device according to claim 1, wherein the four corners of the rectangular base (1) are provided with movable wheels (118).
7. The multifunctional automobile teaching aid display device according to claim 1, wherein a long hole (119) is formed in the side surface of the annular box body (2), a contact switch (120) is mounted at the upper end of the long hole (119), a fixing ring (110) is mounted on the side surface of the annular box body (2), an L-shaped rod (94) is mounted on the inner surface of the fixing ring (110), and the lower end of the L-shaped rod (94) corresponds to the position of the first rectangular groove (81).
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| CN202011283969.6A CN112258966B (en) | 2020-11-19 | 2020-11-19 | Multifunctional automobile teaching aid display device |
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| JP5073727B2 (en) * | 2009-10-14 | 2012-11-14 | 本田技研工業株式会社 | Bicycle simulation equipment |
| CN105919354B (en) * | 2016-05-16 | 2020-04-28 | 海门市知舟工业设计有限公司 | Special display platform for new energy automobile parts |
| KR102464527B1 (en) * | 2018-01-15 | 2022-11-09 | 삼성전자주식회사 | Display Device and the Method for Touch Interface |
| CN208228717U (en) * | 2018-01-26 | 2018-12-14 | 中职北方智扬(北京)教育科技有限公司 | A kind of automobile teaching aid model lifting apparatus |
| CN209328283U (en) * | 2018-05-04 | 2019-08-30 | 山东理工职业学院 | A kind of automobile teaching aid exhibition vehicle |
| CN209895586U (en) * | 2019-04-03 | 2020-01-03 | 湖南工业职业技术学院 | University student's careers guidance class teaching content display device |
| CN111544264B (en) * | 2020-05-22 | 2022-02-15 | 王明明 | Waist-wearing type energy storage rehabilitation walking aid |
| CN111557833B (en) * | 2020-05-22 | 2021-11-02 | 王明明 | Walking aid for patients with waist-wearing type single lower limb movement disorder |
| CN111653179B (en) * | 2020-06-05 | 2021-08-27 | 北京智扬北方国际教育科技有限公司 | Automobile teaching aid for simulating working conditions of rear wheels of automobile |
| CN111564097B (en) * | 2020-06-05 | 2021-08-17 | 北京智扬北方国际教育科技有限公司 | Automobile teaching aid for demonstrating automobile rear axle work |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208077553U (en) * | 2018-03-18 | 2018-11-09 | 王明明 | A kind of study educational propaganda column with plate change function |
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Effective date of registration: 20230726 Address after: No. 4-17, Floor 4, Beike Innovation Center, No. 298, Congtai East Road, Congtai District, Handan City, Hebei Province, 056000 Patentee after: Handan Congtai District Zeduan Technology Service Co.,Ltd. Address before: 056000 no.181, Beihuan East Road, Congtai District, Handan City, Hebei Province Patentee before: Wang Mingming |
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Application publication date: 20210122 Assignee: BEIJING ZHI YANG NORTH INTERNAITONAL EDUCATION TECHNOLOGY Co.,Ltd. Assignor: Handan Congtai District Zeduan Technology Service Co.,Ltd. Contract record no.: X2023980040932 Denomination of invention: A multifunctional display device for automotive teaching aids Granted publication date: 20220419 License type: Common License Record date: 20230831 |
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