CN109737287B - Portable projection arrangement of marketing training teaching - Google Patents
Portable projection arrangement of marketing training teaching Download PDFInfo
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- CN109737287B CN109737287B CN201910140073.3A CN201910140073A CN109737287B CN 109737287 B CN109737287 B CN 109737287B CN 201910140073 A CN201910140073 A CN 201910140073A CN 109737287 B CN109737287 B CN 109737287B
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Abstract
The invention discloses a portable projection device for marketing training teaching, which comprises a carrying box and a projector, wherein a window is formed in the upper surface of the carrying box, a window opening and closing mechanism and a lifting mechanism are fixedly arranged in the carrying box, the projector is fixedly arranged on the lifting mechanism, the window opening and closing mechanism comprises a double-shaft motor, two threaded rods, six guide wheels and two pull ropes, the two threaded rods and the six guide wheels are limited to rotate in the carrying box, transmission plates are fixedly connected to two sides of the double-shaft motor, the two transmission plates are respectively in threaded connection with the two threaded rods and slide up and down along the inner wall of the carrying box, and an output shaft at the lower end of the double-shaft motor is fixedly connected with a first external spline shaft. According to the invention, through the matching of the structures, the projector is convenient to carry, and the projector is more convenient to take out and store.
Description
Technical Field
The invention relates to the technical field of portable projection devices, in particular to a portable projection device for marketing training and teaching.
Background
Leading teacher can use the projecting apparatus usually in marketing training teaching, utilizes the projecting apparatus to come out the data projection of market analysis and supplies everybody to watch, but traditional projecting apparatus all is the snap-on indoor, is not convenient for carry to need study to the classroom of installing the projecting apparatus, it is comparatively troublesome.
Disclosure of Invention
The invention aims to provide a portable projector for marketing training teaching, which has the advantages of convenience in carrying a projector and convenience in taking out and storing the projector, and solves the problem that the traditional projectors are directly fixed indoors and inconvenient to carry, so that a classroom provided with the projector needs to learn, and the projectors are troublesome.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a portable projection arrangement of marketing training teaching, is including carrying case and projecting apparatus, the window has been seted up to the upper surface that carries the case, the incasement that carries the case is fixed and is equipped with window closing mechanism and elevating system, the projecting apparatus is fixed to be established on elevating system.
The window opening and closing mechanism comprises a double-shaft motor, two threaded rods, six guide wheels and two pull ropes, wherein the two threaded rods and the six guide wheels are in limited rotation in a box of the carrying box, transmission plates are fixedly connected to two sides of the double-shaft motor, the two transmission plates are respectively in threaded connection with the two threaded rods and slide up and down along the inner wall of the carrying box, a first external spline shaft is fixedly connected to an output shaft at the lower end of the double-shaft motor, a second external spline shaft is fixedly connected to the lower surfaces of the two threaded rods, the two second external spline shafts are respectively engaged with the first external spline shaft, one end parts of the two pull ropes are respectively fixedly connected with the two transmission plates, the other ends of the two pull ropes penetrate through the guide wheels and are fixedly connected with baffle plates, the two baffle plates are in limited sliding on the opening wall of the window in the left-, the other end of the first spring is fixedly connected with the inner wall of the carrying box.
Preferably, the lifting mechanism comprises a double-end threaded rod, two second springs, two L-shaped guide pipes, a third outer spline shaft and an inner spline housing, the double-end threaded rod and the inner spline housing are both rotated in a limiting manner in the box of the carrying box, the two second springs are both fixedly connected in the box of the carrying box, the two L-shaped guide pipes are respectively and fixedly connected to the upper surfaces of the two transmission plates, the third outer spline shaft is fixedly connected to an output shaft at the upper end of the double-shaft motor, a lever arm of the double-end threaded rod is fixedly connected with a first bevel gear, an upper surface of the inner spline housing is fixedly connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, external threads at two ends of the double-end threaded rod are both in threaded connection with transmission blocks, the side surfaces of the two transmission blocks, which are close to the lower ends of the transmission blocks, are both upper ends of the, the other end of the two transmission arms is rotatably connected with a lifting plate through a pin shaft, and the projector is fixedly arranged on the upper surface of the lifting plate.
Preferably, the double-end threaded rod is a threaded rod with two opposite thread directions.
Preferably, the inner diameter of the inner spline housing is matched with the third outer spline shaft.
Preferably, the size of the through groove is matched with the pipe arm of the L-shaped guide pipe.
Preferably, the upper surfaces of the two baffle plates are fixedly connected with handles.
Preferably, the lower surface of the carrying case is fixedly connected with two telescopic supporting legs.
Compared with the prior art, the invention has the following beneficial effects:
the invention can control the opening and closing of the two baffles through the arrangement of the double-shaft motor, the threaded rod, the guide wheel, the pull rope, the transmission plate, the first external spline shaft, the second external spline shaft and the baffles.
According to the invention, the two baffles can be firstly opened before the projector extends out through the arrangement of the first spring, the double-head threaded rod, the second spring, the L-shaped guide pipe, the third external spline shaft, the internal spline sleeve, the first bevel gear, the second bevel gear, the transmission block, the through groove, the transmission arm, the lifting plate, the handle and the telescopic support leg, and the two baffles can be closed after the projector retracts so as to be convenient to carry when the projector retracts.
To sum up, it is convenient to have possessed and carried the projecting apparatus to it is all more convenient to take out and deposit the projecting apparatus, has solved traditional projecting apparatus and has all directly fixed indoor, and is not convenient for carry, thereby needs to the classroom study of installing the projecting apparatus, comparatively troublesome problem.
Drawings
Fig. 1 is a front cross-sectional view of the structure of the present invention.
In the figure: 1-carrying box, 2-projector, 3-window opening and closing mechanism, 4-lifting mechanism, 5-double-shaft motor, 6-threaded rod, 7-guide wheel, 8-pull rope, 9-transmission plate, 10-first external spline shaft, 11-second external spline shaft, 12-baffle, 13-first spring, 14-double-threaded rod, 15-second spring, 16-L-shaped guide pipe, 17-third external spline shaft, 18-internal spline sleeve, 19-first bevel gear, 20-second bevel gear, 21-transmission block, 22-through groove, 23-transmission arm, 24-lifting plate, 25-handle and 26-telescopic supporting leg.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a portable projection arrangement of marketing training teaching, including carrying case 1 and projecting apparatus 2, carry two telescopic support leg 26 of lower fixed surface of case 1, through adjusting two telescopic support leg 26, make the whole height that carries case 1 can adjust, and then satisfy the demand to 2 altitude mixture control of projecting apparatus, the window has been seted up to the upper surface of carrying case 1, the incasement fixation that carries case 1 is equipped with window closing mechanism 3 and elevating system 4, projecting apparatus 2 is fixed to be established on elevating system 4.
The window opening and closing mechanism 3 comprises a double-shaft motor 5, two threaded rods 6, six guide wheels 7 and two pull ropes 8, the two threaded rods 6 and the six guide wheels 7 are in limited rotation in a carrying box 1, transmission plates 9 are fixedly connected to two sides of the double-shaft motor 5, the two transmission plates 9 are respectively in threaded connection with the two threaded rods 6 and slide up and down along the inner wall of the carrying box 1, a first external spline shaft 10 is fixedly connected to an output shaft at the lower end of the double-shaft motor 5, second external spline shafts 11 are fixedly connected to the lower surfaces of the two threaded rods 6, the two second external spline shafts 11 are respectively meshed with the first external spline shaft 10, one end parts of the two pull ropes 8 are respectively and fixedly connected with the two transmission plates 9, the other ends of the two pull ropes penetrate through the guide wheels 7 and are fixedly connected with baffle plates 12, the two baffle plates 12 are in limited sliding on the opening, through the handle 25 that sets up, the person of facilitating the use mentions and carries case 1 so that carry, the equal first spring 13 of fixedly connected with in side of lug under two baffles 12, the other end of two first springs 13 all with the inner wall fixed connection who carries case 1, two first springs 13 provide elastic restoring force for two baffles 12 respectively. The operation through 5 lower extreme output shafts of biax motor has driven first external spline shaft 10 to rotate in step, two external spline shafts 11 have been driven in step by the rotation of first external spline shaft 10 and have rotated, two threaded rods 6 have been driven in step by the rotation of two external spline shafts 11 and have rotated, by the rotation of two threaded rods 6, make two driving plate 9 synchronous upward movement, then pull rope 8 is moved, make two baffles 12 open to both sides, after third external spline shaft 17 among the following stretches into internal spline housing 18 in, driving plate 9 will be supported and press second spring 15, thereby because the internal thread hole diameter of driving plate 9 is greater than the diameter that threaded rod 6 upper end department does not have the external screw thread, consequently, the upper end of threaded rod 6 idles in the internal thread hole of driving plate 9, and then driving plate 9 is not removing.
The lifting mechanism 4 comprises a double-end threaded rod 14, two second springs 15, two L-shaped guide pipes 16, a third external spline shaft 17 and an internal spline housing 18, the double-end threaded rod 14 and the internal spline housing 18 are both in limited rotation in the carrying case 1, the double-end threaded rod 14 is a threaded rod with two ends in opposite thread directions, the internal diameter of the internal spline housing 18 is matched with that of the third external spline shaft 17, the two second springs 15 are both fixedly connected in the carrying case 1, the two L-shaped guide pipes 16 are respectively and fixedly connected on the upper surfaces of the two transmission plates 9, the third external spline shaft 17 is fixedly connected on an output shaft at the upper end of the double-shaft motor 5, a first bevel gear 19 is fixedly connected on a lever arm of the double-end threaded rod 14, a second bevel gear 20 is fixedly connected on the upper surface of the internal spline housing 18, the first bevel gear 19 is meshed with the second bevel gear 20, external threads at both ends of the double-, the two transmission blocks 21 are provided with through grooves 22 on the side surfaces close to the lower ends thereof, the size of each through groove 22 is matched with the pipe arm of the L-shaped guide pipe 16, the upper ends of the two transmission blocks 21 are rotatably connected with transmission arms 23 through pin shafts, the other ends of the two transmission arms 23 are rotatably connected with lifting plates 24 through pin shafts, the projector 2 is fixedly arranged on the upper surfaces of the lifting plates 24, when the third external spline shaft 17 extends into the internal spline housing 18, the second bevel gear 20 synchronously rotates through the operation of the output shaft at the upper end of the double-shaft motor 5 and the transmission of the third external spline shaft 17 and the internal spline housing 18, the first bevel gear 19 is synchronously driven to rotate by the rotation of the second bevel gear 20, the double-head threaded rod 14 is synchronously driven to rotate by the rotation of the first bevel gear 19, the two internal spline housings 18 synchronously move towards opposite directions by the rotation of the double-head threaded rod 14, and the notch of logical groove 22 passes the tube arm of L style of calligraphy stand pipe 16, thereby through the transmission of transmission arm 23, make lifter plate 24 rebound, and then stretch out the window after opening with projecting apparatus 2 so that use, when needs regain projecting apparatus 2 again, the output shaft reversal of double-shaft motor 5, then synchronous drive double threaded rod 14 reversal, make projecting apparatus 2 regain to carrying case 1 incasement, thereby after the notch of logical groove 22 breaks away from the tube arm of L style of calligraphy stand pipe 16, utilize the elastic restoring force of first spring 13, make the internal thread hole of transmission plate 9 carry out screw drive with the external screw thread of threaded rod 6 again, and then make whole mechanism return to initial condition as shown in figure 1.
To sum up, possessed and conveniently carried projecting apparatus 2 to it is all more convenient to take out and deposit projecting apparatus 2, solved traditional projecting apparatus 2 and all directly fixed indoor, portable not convenient to have, thereby need to study to the classroom of installing projecting apparatus 2, comparatively troublesome problem.
The working principle is as follows: when the portable projection device for marketing training teaching is used, the first external spline shaft 10 is synchronously driven to rotate through the operation of the lower end output shaft of the double-shaft motor 5, the two second external spline shafts 11 are synchronously driven to rotate through the rotation of the first external spline shaft 10, the two threaded rods 6 are synchronously driven to rotate through the rotation of the two second external spline shafts 11, the two transmission plates 9 synchronously move upwards through the rotation of the two threaded rods 6, then the pull rope 8 is pulled, the two baffles 12 are opened towards two sides, after the third external spline shaft 17 extends into the internal spline sleeve 18, the transmission plate 9 is pressed against the second spring 15, therefore, the diameter of the internal thread hole of the transmission plate 9 is larger than the diameter without external threads at the upper end of the threaded rod 6, therefore, the upper end of the threaded rod 6 idles in the internal thread hole of the transmission plate 9, and the transmission plate 9 is not moved, meanwhile, the operation of the output shaft at the upper end of the double-shaft motor 5 drives the second bevel gear 20 to synchronously rotate through the transmission of the third external spline shaft 17 and the internal spline housing 18, the rotation of the second bevel gear 20 synchronously drives the first bevel gear 19 to rotate, the rotation of the first bevel gear 19 synchronously drives the double-end threaded rod 14 to rotate, the rotation of the double-end threaded rod 14 synchronously moves the two internal spline housings 18 to opposite directions, and the notch of the through groove 22 passes through the pipe arm of the L-shaped guide pipe 16, so that the lifting plate 24 moves upwards through the transmission of the transmission arm 23, the projector 2 extends out of the opened window for use, when the projector 2 needs to be retracted again, the output shaft of the double-shaft motor 5 rotates reversely, the double-end threaded rod 14 is synchronously driven to rotate reversely, the projector 2 is retracted into the carrying case 1, so that after the notch of the through groove 22 is separated from the pipe arm of the L-shaped guide pipe 16, the internal thread hole of the transmission plate 9 is again screw-transmitted with the external thread of the threaded rod 6 by the elastic restoring force of the first spring 13, and the entire mechanism is returned to the initial state as shown in fig. 1.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a portable projection arrangement of marketing training teaching, is including carrying case (1) and projecting apparatus (2), its characterized in that: the upper surface of the carrying case (1) is provided with a window, a window opening and closing mechanism (3) and a lifting mechanism (4) are fixedly arranged in the carrying case (1), and the projector (2) is fixedly arranged on the lifting mechanism (4);
window opening and closing mechanism (3) are including double-shaft motor (5), two threaded rods (6) and six leading wheels (7) and two stay cords (8), two threaded rod (6) and six the incasement of carrying case (1) is all spacing to rotate in leading wheel (7), the equal fixedly connected with driving plate (9) in both sides of double-shaft motor (5), two driving plate (9) threaded connection respectively on two threaded rods (6) and all slide from top to bottom along the inner wall that carries case (1), the first external spline shaft of output shaft fixedly connected with (10) of double-shaft motor (5) lower extreme, two the equal fixedly connected with second external spline shaft (11) of lower surface of threaded rod (6), two second external spline shaft (11) all mesh with first external spline shaft (10), two a tip of stay cord (8) all passes leading wheel (7) and fixedly connected with the other end with two driving plate (9) fixed connection respectively and the baffle (7), (7) and fixedly connected with 12) The baffle (12) is limited to slide on the wall of the opening of the window in a left-right mode, the side face of the lower protruding block of the baffle (12) is fixedly connected with a first spring (13), and the other end of the first spring (13) is fixedly connected with the inner wall of the carrying case (1).
2. The portable projection device for marketing training and teaching of claim 1, wherein: elevating system (4) include double-end threaded rod (14), two second spring (15), two L style of calligraphy stand pipe (16), third external spline shaft (17) and internal spline housing (18), double-end threaded rod (14) and internal spline housing (18) are equal spacing rotation in the incasement that carries case (1), two equal fixed connection of second spring (15) is in the incasement that carries case (1), two L style of calligraphy stand pipe (16) is fixed connection respectively at the upper surface of two driving plates (9), third external spline shaft (17) fixed connection is on the output shaft of double-shaft motor (5) upper end, the lever arm fixedly connected with first conical gear (19) of double-end threaded rod (14), the last fixed surface of internal spline housing (18) is connected with conical gear (20), first conical gear (19) and second conical gear (20) meshing, the equal threaded connection of external screw thread at double-end threaded rod (14) both ends has drive block (21), two drive block (21) are close to the side of its lower extreme and have all seted up logical groove (22), two the upper end of drive block (21) all is connected with drive arm (23), two through the round pin hub rotation the other end of drive arm (23) is connected with lifter plate (24) through the round pin hub rotation, projecting apparatus (2) are fixed to be established at the upper surface of lifter plate (24).
3. The portable projection device for marketing training and teaching of claim 2, wherein: the double-end threaded rod (14) is a threaded rod with two opposite thread directions.
4. The portable projection device for marketing training and teaching of claim 2, wherein: the inner diameter of the inner spline housing (18) is matched with the third outer spline shaft (17).
5. The portable projection device for marketing training and teaching of claim 2, wherein: the size of the through groove (22) is matched with the pipe arm of the L-shaped guide pipe (16).
6. The portable projection device for marketing training and teaching of claim 1, wherein: the upper surfaces of the two baffles (12) are fixedly connected with handles (25).
7. The portable projection device for marketing training and teaching of claim 1, wherein: the lower surface of the carrying case (1) is fixedly connected with two telescopic supporting legs (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910140073.3A CN109737287B (en) | 2019-02-26 | 2019-02-26 | Portable projection arrangement of marketing training teaching |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910140073.3A CN109737287B (en) | 2019-02-26 | 2019-02-26 | Portable projection arrangement of marketing training teaching |
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| CN109737287A CN109737287A (en) | 2019-05-10 |
| CN109737287B true CN109737287B (en) | 2020-10-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566791A (en) * | 2019-09-17 | 2019-12-13 | 安徽晟源环保新型材料有限公司 | Support for electronic information projector |
| CN110880251B (en) * | 2019-11-30 | 2022-08-09 | 王毅 | Portable projection arrangement of marketing training teaching |
| CN112330893A (en) * | 2020-09-30 | 2021-02-05 | 贵阳市大数据产业集团有限公司 | Internet hospital's payment terminal convenient to carry and prevent losing |
| CN113280224B (en) * | 2021-06-18 | 2022-10-04 | 何军 | Marketing scheme intention excitation device |
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| CN201539670U (en) * | 2009-06-13 | 2010-08-04 | 张伯文 | Holder capable of arranging center of gravity of observer on pitching axis |
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