CN108877321B - Large-screen laser projection device for intelligent platform and manufacturing method thereof - Google Patents
Large-screen laser projection device for intelligent platform and manufacturing method thereof Download PDFInfo
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- CN108877321B CN108877321B CN201810888959.1A CN201810888959A CN108877321B CN 108877321 B CN108877321 B CN 108877321B CN 201810888959 A CN201810888959 A CN 201810888959A CN 108877321 B CN108877321 B CN 108877321B
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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
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
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Abstract
The invention discloses a large-screen laser projection device for an intelligent platform and a manufacturing method thereof, and the large-screen laser projection device comprises a cantilever, a beam and a curtain, wherein an end cover is arranged on the top surface of the cantilever, a winding drum and a rotary drum are arranged inside the cantilever, the curtain is wound on the winding drum, two sides of the winding drum are connected with the cantilever through torsion springs, a through groove is arranged right below the winding drum, the rotary drum is positioned on the front side of the winding drum, two ends of the rotary drum are connected with the cantilever through rotating shafts, a wiring port is arranged on the rotary drum, the cantilever is connected with the beam through a link mechanism, and two groups of link mechanisms are symmetrically arranged on the left side and the right side of the curtain. The manufacturing method comprises the following steps: cantilever processing, crossbeam processing, curtain coiling, link mechanism installation and large-screen laser projection device test. The manufacturing method has simple steps and strong practicability, can fix the curtain at any position, is flexible and convenient to use, and can directly project the characters written on the intelligent platform on the set position of the curtain.
Description
Technical Field
The invention relates to a large-screen laser projection device for an intelligent platform and a manufacturing method thereof.
Background
With the development of education and the acceleration of intelligent education pace, the education industry gradually tends to informationization, science and technology and intellectualization, the concept of a multimedia digital classroom is further applied gradually, and a multimedia platform is widely applied to the multimedia classrooms of colleges and universities and primary and secondary schools and is beneficial to integrated teaching and modern teaching.
Adopt the projection screen who is connected with intelligent podium generally all be fixed dimension in the existing market, can not carry out length adjustment according to the needs of in-service use, consequently have certain limitation, generally fix the bottom of curtain and wall moreover and just can make whole curtain fixed, take place the fold easily, influence projection effect.
Disclosure of Invention
The invention aims to provide a large-screen laser projection device for an intelligent platform and a technical scheme of a manufacturing method thereof, aiming at the defects in the prior art, the curtain can be wound into a cantilever through the design of a winding drum, the length of the curtain can be conveniently adjusted according to the use requirements of different occasions, the invention has strong practicability and flexible and convenient use, a through groove is convenient for enabling the curtain to move along the vertical direction, the curtain is prevented from being wound and folded during winding, the integral projection effect of the curtain is further influenced, a rotary drum can drive a projection lamp to rotate, the projection position of characters on the curtain is further adjusted, the invention has flexible and convenient use, a connecting rod mechanism can control the distance between the cantilever and a cross beam according to the length of the curtain, the curtain is fixed, a fixing device is not required to be arranged at the bottom of the cross beam, the curtain can be fixed at any position, and the invention has flexible and convenient use, the manufacturing method has simple steps and strong practicability, can fix the curtain at any position, is flexible and convenient to use, and can directly project the characters written on the intelligent platform on the set position of the curtain.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a large-size screen laser projection arrangement for intelligence podium, includes cantilever, crossbeam and curtain, and the crossbeam passes through the curtain to be connected in the below of cantilever, is provided with the end cover on the top surface of cantilever, and the top surface center department of end cover is provided with the terminal box, is connected with cable, its characterized in that on the terminal box: the curtain winding device comprises a cantilever, a winding drum, a rotary shaft, a rotating shaft, a connecting rod mechanism and a connecting rod mechanism, wherein the winding drum and the rotary drum are arranged in the cantilever; through the design of the winding drum, can be with the curtain rolling to the cantilever in, be convenient for adjust the length of curtain according to the use needs of different occasions, therefore, the clothes hanger is strong in practicability, it is nimble convenient to use, it makes the curtain remove along vertical direction to lead to the groove to be convenient for, prevent that the curtain from taking place to twine and the fold when the rolling, and then influence the whole projection effect of curtain, rotatory section of thick bamboo can drive the profection lamp rotatory, and then adjust the projection position of characters on the curtain, it is nimble convenient to use, link mechanism can be according to the interval between the length control cantilever of curtain and the crossbeam, fix the curtain, need not install fixing device in the bottom of crossbeam, can satisfy and fix the curtain in any position, it is nimble convenient to use.
Furthermore, the lifting lugs are symmetrically arranged on two sides of the top surface of the end cover, the whole large-screen laser projection device can be fixed on the wall through the lifting lugs, the installation and the disassembly are convenient, and meanwhile, the stability is improved.
Further, it is provided with the brush to lead to the inslot symmetry, be provided with first locating wheel and second locating wheel on the top surface and the bottom surface that lead to the groove respectively, first locating wheel sets up with the slope of second locating wheel, after using the curtain at every turn, can clear up the front and back side of curtain through the brush in the rolling curtain, prevent that dust impurity etc. from bonding on the curtain and influencing the effect of curtain, first locating wheel and second locating wheel can fix a position the effect of direction to the curtain, make the curtain remove along setting up the direction, the area of contact between brush and the curtain has been improved simultaneously.
Further, be provided with driven gear in the pivot, one side of cantilever is provided with servo motor, is connected with the driving gear on the servo motor, and driving gear and driven gear intermeshing drive the driving gear rotation through servo motor, and then drive driven gear rotation, make the pivot drive rotatory section of thick bamboo rotatory, and then adjust the angle of profection lamp.
Further, be provided with controller and speedtransmitter in the cantilever, the controller is located the top of rotatory section of thick bamboo, and the servo motor is connected through speedtransmitter to the controller, and is rotatory through the controller through speedtransmitter control servo motor, has improved the rotation accuracy of profection lamp.
Furthermore, the bottom of the rotary cylinder is provided with at least three groups of projection lamps, and the projection lamps can project characters to positions required by the curtain.
Further, the connecting rod mechanism comprises an upper positioning block, a lower positioning block, an upper fixing rod, a lower fixing rod and a telescopic rod, wherein the upper positioning block is connected to the end part of the cantilever through a first clamping block, the first clamping block is fixedly connected with the cantilever through a first locking screw, the lower positioning block is connected to two ends of the cross beam through a second clamping block, the second clamping block is fixedly connected with the cross beam through a second locking screw, the upper fixing rod is fixedly connected to the bottom surface of the upper positioning block, the lower fixing rod is fixedly connected to the top surface of the lower positioning block, the bottom end of the telescopic rod is fixedly connected to the top end of the lower fixing rod, the top end of the telescopic rod is inserted into the upper fixing rod, elastic limiting blocks are uniformly arranged on the side surfaces of the telescopic rod from top to bottom, limiting holes are uniformly arranged on the side surfaces of the upper fixing rod, the elastic limiting blocks are matched with the limiting holes, when the cross beam is pulled downwards, so that the curtain reaches the set positioning position and then passes through the elastic limiting blocks and the limiting holes, the connecting rod mechanism can be fixed, so that the curtain can be fixed, the curtain can be fixed at any position without installing a fixing device below the cross beam, and the practicability and flexibility of the large-screen laser projection device are improved.
The method for manufacturing the large-screen laser projection device for the intelligent platform is characterized by comprising the following steps of:
1) cantilever machining
a. Firstly, determining the length, width and height of a cantilever according to design requirements, manufacturing the cantilever with a corresponding size, polishing the outer side surface of the cantilever, and symmetrically forming first grooves at two ends of the cantilever;
b. then, a winding drum is installed at a set position in the cantilever, the winding drum is connected with the inner wall of the cantilever through a torsion spring, a through groove is formed in the bottom of the cantilever along the position right below the winding drum, brushes are symmetrically installed in the through groove, and a first positioning wheel and a second positioning wheel are installed on the upper side and the lower side of the through groove respectively according to a designed inclination angle;
c. then a controller and a speed sensor are installed in the cantilever, a rotary drum is installed below the speed sensor, the rotary drum and the through groove are located on the same horizontal plane, a horizontally arranged projection lamp is installed on the side face of the bottom of the rotary drum, driven gears are installed on rotating shafts at two ends of the rotary drum, then a servo motor is installed on the outer side of the cantilever, a driving gear is connected to the servo motor, the driving gear and the driven gears are meshed with each other, and meanwhile the speed sensor is connected with the servo motor through a lead;
d. finally, an end cover is arranged on the top surface of the cantilever, a junction box is arranged in the center of the top surface of the end cover, and an external cable is connected with a controller in the cantilever through the junction box and is connected with the rotary drum through a wiring port;
2) beam processing
Determining the size of the cross beam according to the size of the cantilever, manufacturing a corresponding mold, then performing PVC injection molding, performing deburring treatment on the molded cross beam, then forming a mounting groove on the top surface of the cross beam, and forming second grooves at two ends of the cross beam;
3) curtain winding
Determining the size of a curtain according to the sizes of a cross beam and a cantilever, weaving a base fabric by adopting glass wires, coating a PVC material on a surface layer, processing the base fabric into the curtain, fixing the top side edge of the processed curtain with a winding drum in the cantilever to keep the curtain horizontal, enabling the bottom side edge of the curtain to pass through a through groove after bypassing a first positioning wheel, fixedly connecting the bottom side edge with the cross beam through a second positioning wheel to ensure that the curtain is vertically placed without folds, pulling the cross beam downwards, then loosening an arm, driving the winding drum to rotate through a torsion spring, further driving the curtain and the cross beam to move upwards, and observing the moving conditions of the curtain and the cross beam until the curtain and the cross beam stably move;
4) link mechanism mounting
a. Firstly, selecting an upper positioning block and a lower positioning block which are matched with a cantilever and a cross beam, limiting the upper positioning block in a first groove through a first clamping block, fixing the upper positioning block by using a first locking screw, limiting the lower positioning block in a second groove through a second clamping block, and fixing the lower positioning block by using a second locking screw;
b. then vertically installing an upper fixing rod on the bottom surface of the upper positioning block, uniformly forming limiting holes on the side surface of the upper fixing rod, vertically installing a lower fixing rod on the top surface of the lower positioning block, installing a telescopic rod on the top end of the lower fixing rod, and uniformly installing elastic limiting blocks on the telescopic rod;
c. then inserting the top end of the telescopic rod into the upper fixing rod, moving the cross beam to enable the curtain to reach a set length, and then clamping the corresponding elastic limiting block into the limiting hole to realize fixation;
5) large screen laser projector test
At first, fix large-size screen laser projection device on the wall according to the requirement in place, then the length of stretching out of size determination curtain in place, through pulling the crossbeam downwards to setting for the position, and it is fixed with spacing hole through elastic limiting block, make the curtain reach required length, be connected the cable and intelligent podium after that, project the picture on the curtain through the projecting apparatus, when writing words in the corresponding position on intelligent podium, through signal of telecommunication transmission to the profection lamp of rotatory section of thick bamboo, project the corresponding position of curtain with corresponding characters, the simultaneous control ware can pass through speed sensor control servo motor work, and then it is rotatory through rotatory of driving gear and driven gear control rotatory section of thick bamboo, make the profection lamp rotatory, and then the typeface downstream on the control curtain.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. through the design of the winding drum, the curtain can be wound into the cantilever, the length of the curtain can be conveniently adjusted according to the use requirements of different occasions, the practicability is high, and the use is flexible and convenient.
2. The through groove is convenient for make the curtain remove along vertical direction, prevents that the curtain from taking place the winding and the fold when the rolling, and then influences the whole projection effect of curtain.
3. The rotary cylinder can drive the projection lamp to rotate, so that the projection position of characters on the curtain can be adjusted, and the use is flexible and convenient.
4. The connecting rod mechanism can control the distance between the cantilever and the cross beam according to the length of the curtain to fix the curtain, a fixing device does not need to be installed at the bottom of the cross beam, the curtain can be fixed at any position, and the curtain is flexible and convenient to use.
5. The manufacturing method has simple steps and strong practicability, can fix the curtain at any position, is flexible and convenient to use, and can directly project the characters written on the intelligent platform on the set position of the curtain.
Description of the drawings:
the invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a large-screen laser projection device for an intelligent platform and a method for manufacturing the large-screen laser projection device according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic view of the internal structure of the cantilever according to the present invention;
FIG. 4 is a schematic view of the connection of the take-up reel, the rotary reel and the boom according to the present invention;
FIG. 5 is a schematic view of the connection between the upper positioning block and the cantilever according to the present invention;
FIG. 6 is a schematic view of the connection between the lower positioning block and the cross beam according to the present invention.
In the figure: 1-a cantilever; 2-end cap; 3-a junction box; 4-a cable; 5-a cross beam; 6-curtain; 7-lifting lugs; 8-fixing the rod; 9-lower fixing rod; 10-a telescopic rod; 11-upper positioning blocks; 12-lower positioning block; 13-a limiting hole; 14-an elastic limiting block; 15-winding the roll; 16-a controller; 17-a speed sensor; 18-a rotating drum; 19-through groove; 20-a brush; 21-a first positioning wheel; 22-a second positioning wheel; 23-a torsion spring; 24-a servo motor; 25-a drive gear; 26-a rotating shaft; 27-a driven gear; 28-a wiring port; 29-a first fixture block; 30-a first locking screw; 31-a second cartridge; 32-a second locking screw; 33-projection lamp.
Detailed Description
As shown in fig. 1 to 6, the large-screen laser projection device for the intelligent platform of the invention comprises a cantilever 1, a beam 5 and a curtain 6, wherein the beam 5 is connected below the cantilever 1 through the curtain 6, an end cover 2 is arranged on the top surface of the cantilever 1, a junction box 3 is arranged at the center of the top surface of the end cover 2, a cable 4 is connected to the junction box 3, lifting lugs 7 are symmetrically arranged on two sides of the top surface of the end cover 2, the whole large-screen laser projection device can be fixed on a wall through the lifting lugs 7, the installation and the disassembly are convenient, and the stability is improved.
The inside of cantilever 1 is provided with receipts reel 15 and a rotatory section of thick bamboo 18, curtain 6 is convoluteed on receipts reel 15, the both sides of a receipts reel 15 are passed through torsion spring 23 and are connected cantilever 1, be provided with logical groove 19 under a receipts reel 15, the symmetry is provided with brush 20 in logical groove 19, be provided with first locating wheel 21 and second locating wheel 22 on the top surface and the bottom surface of logical groove 19 respectively, first locating wheel 21 and the slope of second locating wheel 22 set up, after using curtain 6 at every turn, can clear up the front and back side of curtain 6 through brush 20 in the rolling curtain 6, prevent that dust impurity etc. from bonding on curtain 6 and influencing the effect of curtain 6, first locating wheel 21 and second locating wheel 22 can carry out the effect of location direction to curtain 6, make curtain 6 remove along setting up the direction, the area of contact between brush 20 and the curtain 6 has been improved simultaneously.
The rotary drum 18 is positioned at the front side of the winding drum 15 and positioned on the same horizontal plane with the through groove 19, two ends of the rotary drum 18 are connected with the cantilever 1 through a rotating shaft 26, a wiring port 28 is arranged on the rotary drum 18, a driven gear 27 is arranged on the rotating shaft 26, a servo motor 24 is arranged at one side of the cantilever 1, a driving gear 25 is connected on the servo motor 24, the driving gear 25 is meshed with the driven gear 27, the driving gear 25 is driven to rotate through the servo motor 24, the driven gear 27 is driven to rotate, the rotary drum 18 is driven to rotate by the rotating shaft 26, the angle of the projection lamp 33 is adjusted, a controller 16 and a speed sensor 17 are arranged in the cantilever 1, the controller 16 is positioned above the rotary drum 18, the controller 16 is connected with the servo motor 24 through the speed sensor 17, the servo motor 24 is controlled to rotate through the controller 16 through the speed sensor 17, and the rotation precision of the projection lamp 33 is improved, at least three sets of projection lamps 33 are disposed at the bottom of the rotary drum 18, and the projection lamps 33 can project characters to desired positions on the curtain 6.
The curtain comprises a cantilever 1, a cross beam 5, two groups of link mechanisms, a curtain 6, a plurality of elastic limiting blocks 14, a plurality of telescopic rods 10 and a plurality of elastic pieces, wherein the cantilever 1 is connected with the cross beam 5 through the link mechanisms, the two groups of link mechanisms are symmetrically arranged at the left side and the right side of the curtain 6, each link mechanism comprises an upper positioning block 11, a lower positioning block 12, an upper fixing rod 8, a lower fixing rod 9 and the telescopic rods 10, the upper positioning block 11 is connected with the end part of the cantilever 1 through a first clamping block 29, the first clamping block 29 is fixedly connected with the cantilever 1 through a first locking screw 30, the lower positioning block 12 is connected with the two ends of the cross beam 5 through a second clamping block 31, the second clamping block 31 is fixedly connected with the cross beam 5 through a second locking screw 32, the upper fixing rod 8 is fixedly connected with the bottom surface of the upper positioning block 11, the lower fixing rod 9 is fixedly connected with the top surface of the lower positioning block 12, the bottom end of the telescopic rods 10 is fixedly connected with the top end of the lower fixing rod 9, the top end of the telescopic rods 10 is inserted into the upper fixing rod 8, the side surfaces of the telescopic rods 10 are uniformly provided with the elastic limiting blocks 14 from top to the bottom, the side surface of the upper fixing rod 8 is uniformly provided with limiting holes 13, the elastic limiting block 14 is matched with the limiting holes 13, when the cross beam 5 is pulled downwards to enable the curtain 6 to reach a set position, the connecting rod mechanism can be fixed through the elastic limiting block 14 and the limiting holes 13, and then the curtain 6 is fixed, the curtain 6 can be fixed at any position without installing a fixing device below the cross beam 5, and the practicability and flexibility of the large-screen laser projection device are improved; through the design of take-up reel 15, can be with curtain 6 rolling to cantilever 1 in, be convenient for adjust the length of curtain 6 according to the use needs of different occasions, therefore, the clothes hanger is strong in practicability, it is nimble convenient to use, it makes curtain 6 remove along vertical direction to lead to groove 19 to be convenient for, prevent that curtain 6 from taking place the winding and the fold when the rolling, and then influence the whole projection effect of curtain 6, rotatory section of thick bamboo 18 can drive profection lamp 33 rotatory, and then adjust the projection position of characters on the curtain 6, it is nimble convenient to use, link mechanism can be according to the interval between length control cantilever 1 of curtain 6 and crossbeam 5, fix curtain 6, do not need the bottom installation fixing device at crossbeam 5, can satisfy and fix curtain 6 in any position, it is nimble convenient to use.
The method for manufacturing the large-screen laser projection device for the intelligent platform comprises the following steps:
1) cantilever machining
a. Firstly, determining the length, the width and the height of a cantilever 1 according to design requirements, manufacturing the cantilever 1 with corresponding dimensions, polishing the outer side surface of the cantilever 1, and symmetrically forming first grooves at two ends of the cantilever 1;
b. then, a winding drum 15 is installed at a set position in the cantilever 1, the winding drum 15 is connected with the inner wall of the cantilever 1 through a torsion spring 23, a through groove 19 is formed in the bottom of the cantilever 1 along the position right below the winding drum 15, brushes 20 are symmetrically installed in the through groove 19, and a first positioning wheel 21 and a second positioning wheel 22 are installed on the upper side and the lower side of the through groove 19 respectively according to a designed inclination angle;
c. then, a controller 16 and a speed sensor 17 are installed in the cantilever 1, a rotary drum 18 is installed below the speed sensor 17, the rotary drum 18 and a through groove 19 are located on the same horizontal plane, a horizontally arranged projection lamp 33 is installed on the side surface of the bottom of the rotary drum 18, driven gears 27 are installed on rotating shafts 26 at two ends of the rotary drum 18, then a servo motor 24 is installed on the outer side of the cantilever 1, a driving gear 25 is connected to the servo motor 24, the driving gear 25 is meshed with the driven gears 27, and meanwhile, the speed sensor 17 is connected with the servo motor 24 through a lead;
d. finally, an end cover 2 is installed on the top surface of the cantilever 1, a junction box 3 is installed at the center of the top surface of the end cover 2, and an external cable 4 is connected with a controller 16 in the cantilever 1 through the junction box 3 and is connected with a rotary drum 18 through a wiring port 28;
2) beam processing
Determining the size of the cross beam 5 according to the size of the cantilever 1, manufacturing a corresponding mold, then performing PVC injection molding, performing deburring treatment on the molded cross beam 5, then forming an installation groove on the top surface of the cross beam 5, and forming second grooves at two ends of the cross beam 5;
3) curtain winding
Determining the size of a curtain 6 according to the sizes of a cross beam 5 and a cantilever 1, weaving a base fabric by using glass threads, coating a PVC material on a surface layer, processing the base fabric into the curtain 6, fixing the top side edge of the processed curtain 6 with a winding drum 15 in the cantilever 1 to keep the curtain 6 horizontal, enabling the bottom side edge of the curtain 6 to pass through a through groove 19 after bypassing a first positioning wheel 21, fixedly connecting the bottom side edge with the cross beam 5 through a second positioning wheel 22 to ensure that no wrinkles exist after the curtain 6 is vertically placed, pulling the cross beam 5 downwards, then loosening an arm, driving the winding drum 15 to rotate through a torsion spring 23, further driving the curtain 6 and the cross beam 5 to move upwards, observing the movement conditions of the curtain 6 and the cross beam 5 until the curtain 6 and the cross beam 5 stably move;
4) link mechanism mounting
a. Firstly, an upper positioning block 11 and a lower positioning block 12 which are matched with a cantilever 1 and a cross beam 5 are selected, the upper positioning block 11 is limited in a first groove through a first fixture block 29 and is fixed through a first locking screw 30, the lower positioning block 12 is limited in a second groove through a second fixture block 31 and is fixed through a second locking screw 32;
b. then, an upper fixing rod 8 is vertically arranged on the bottom surface of an upper positioning block 11, limiting holes 13 are uniformly formed in the side surface of the upper fixing rod 8, a lower fixing rod 9 is vertically arranged on the top surface of a lower positioning block 12, a telescopic rod 10 is arranged at the top end of the lower fixing rod 9, and elastic limiting blocks 14 are uniformly arranged on the telescopic rod 10;
c. then inserting the top end of the telescopic rod 10 into the upper fixing rod 8, moving the beam 5 to enable the curtain 6 to reach a set length, and then clamping the corresponding elastic limiting block 14 into the limiting hole 13 to realize fixing;
5) large screen laser projector test
Firstly, fix large-screen laser projection device on the wall according to the requirement on the place, then confirm the extension length of curtain 6 according to the size in place, through pulling crossbeam 5 downwards to setting for the position, and it is fixed through elasticity stopper 14 and spacing hole 13, make curtain 6 reach required length, then be connected cable 4 and intelligent podium, project the picture on curtain 6 through the projecting apparatus, when writing on the corresponding position on intelligent podium, on projecting lamp 33 of rotatory section of thick bamboo 18 through the signal of telecommunication transmission, the corresponding position of curtain 6 is projected to corresponding characters, controller 16 can control servo motor 24 work through speed sensor 17 simultaneously, and then control rotatory section of thick bamboo 18 rotatory through driving gear 25 and driven gear 27, make projecting lamp 33 rotatory, and then the downward removal of typeface on the control curtain 6.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (4)
1. The utility model provides a manufacturing approach for big screen laser projection device of intelligent podium, big screen laser projection device includes cantilever, crossbeam and curtain, the crossbeam passes through the curtain is connected the below of cantilever, be provided with the end cover on the top surface of cantilever, the top surface center department of end cover is provided with the terminal box, be connected with cable, its characterized in that on the terminal box: a winding drum and a rotating drum are arranged inside the cantilever, the curtain is wound on the winding drum, two sides of the winding drum are connected with the cantilever through torsion springs, a through groove is arranged right below the winding drum, the rotating drum is positioned on the front side of the winding drum and is positioned on the same horizontal plane with the through groove, two ends of the rotating drum are connected with the cantilever through rotating shafts, a wiring port is arranged on the rotating drum, the cantilever is connected with the cross beam through a connecting rod mechanism, and the two groups of connecting rod mechanisms are symmetrically arranged on the left side and the right side of the curtain; the brush is symmetrically arranged in the through groove, a first positioning wheel and a second positioning wheel are respectively arranged on the top surface and the bottom surface of the through groove, and the first positioning wheel and the second positioning wheel are obliquely arranged; a driven gear is arranged on the rotating shaft, a servo motor is arranged on one side of the cantilever, a driving gear is connected to the servo motor, and the driving gear is meshed with the driven gear; a controller and a speed sensor are arranged in the cantilever, the controller is positioned above the rotary drum, and the controller is connected with the servo motor through the speed sensor; the method comprises the following steps:
1) cantilever machining
a. Firstly, determining the length, width and height of a cantilever according to design requirements, manufacturing the cantilever with a corresponding size, polishing the outer side surface of the cantilever, and symmetrically forming first grooves at two ends of the cantilever;
b. then, a winding drum is installed at a set position in the cantilever, the winding drum is connected with the inner wall of the cantilever through a torsion spring, a through groove is formed in the bottom of the cantilever along the position right below the winding drum, brushes are symmetrically installed in the through groove, and a first positioning wheel and a second positioning wheel are installed on the upper side and the lower side of the through groove respectively according to a designed inclination angle;
c. then a controller and a speed sensor are installed in the cantilever, a rotary drum is installed below the speed sensor, the rotary drum and the through groove are located on the same horizontal plane, a horizontally arranged projection lamp is installed on the side face of the bottom of the rotary drum, driven gears are installed on rotating shafts at two ends of the rotary drum, then a servo motor is installed on the outer side of the cantilever, a driving gear is connected to the servo motor, the driving gear and the driven gears are meshed with each other, and meanwhile the speed sensor is connected with the servo motor through a lead;
d. finally, an end cover is arranged on the top surface of the cantilever, a junction box is arranged in the center of the top surface of the end cover, and an external cable is connected with a controller in the cantilever through the junction box and is connected with the rotary drum through a wiring port;
2) beam processing
Determining the size of the cross beam according to the size of the cantilever, manufacturing a corresponding mold, then performing PVC injection molding, performing deburring treatment on the molded cross beam, then forming a mounting groove on the top surface of the cross beam, and forming second grooves at two ends of the cross beam;
3) curtain winding
Determining the size of a curtain according to the sizes of a cross beam and a cantilever, weaving a base fabric by adopting glass wires, coating a PVC material on a surface layer, processing the base fabric into the curtain, fixing the top side edge of the processed curtain with a winding drum in the cantilever to keep the curtain horizontal, enabling the bottom side edge of the curtain to pass through a through groove after bypassing a first positioning wheel, fixedly connecting the bottom side edge with the cross beam through a second positioning wheel to ensure that the curtain is vertically placed without folds, pulling the cross beam downwards, then loosening an arm, driving the winding drum to rotate through a torsion spring, further driving the curtain and the cross beam to move upwards, and observing the moving conditions of the curtain and the cross beam until the curtain and the cross beam stably move;
4) link mechanism mounting
a. Firstly, selecting an upper positioning block and a lower positioning block which are matched with a cantilever and a cross beam, limiting the upper positioning block in a first groove through a first clamping block, fixing the upper positioning block by using a first locking screw, limiting the lower positioning block in a second groove through a second clamping block, and fixing the lower positioning block by using a second locking screw;
b. then vertically installing an upper fixing rod on the bottom surface of the upper positioning block, uniformly forming limiting holes on the side surface of the upper fixing rod, vertically installing a lower fixing rod on the top surface of the lower positioning block, installing a telescopic rod on the top end of the lower fixing rod, and uniformly installing elastic limiting blocks on the telescopic rod;
c. then inserting the top end of the telescopic rod into the upper fixing rod, moving the cross beam to enable the curtain to reach a set length, and then clamping the corresponding elastic limiting block into the limiting hole to realize fixation;
5) large screen laser projector test
At first, fix large-size screen laser projection device on the wall according to the requirement in place, then the length of stretching out of size determination curtain in place, through pulling the crossbeam downwards to setting for the position, and it is fixed with spacing hole through elastic limiting block, make the curtain reach required length, be connected the cable and intelligent podium after that, project the picture on the curtain through the projecting apparatus, when writing words in the corresponding position on intelligent podium, through signal of telecommunication transmission to the profection lamp of rotatory section of thick bamboo, project the corresponding position of curtain with corresponding characters, the simultaneous control ware can pass through speed sensor control servo motor work, and then it is rotatory through rotatory of driving gear and driven gear control rotatory section of thick bamboo, make the profection lamp rotatory, and then the typeface downstream on the control curtain.
2. The manufacturing method of the large-screen laser projection device for the intelligent platform as claimed in claim 1, wherein the manufacturing method comprises the following steps: lifting lugs are symmetrically arranged on two sides of the top surface of the end cover.
3. The manufacturing method of the large-screen laser projection device for the intelligent platform as claimed in claim 1, wherein the manufacturing method comprises the following steps: at least three groups of projection lamps are arranged at the bottom of the rotary cylinder.
4. The manufacturing method of the large-screen laser projection device for the intelligent platform as claimed in claim 1, wherein the manufacturing method comprises the following steps: the connecting rod mechanism comprises an upper positioning block, a lower positioning block, an upper fixing rod, a lower fixing rod and a telescopic rod, the upper positioning block is connected to the end part of the cantilever through a first clamping block, the first clamping block is fixedly connected with the cantilever through a first locking screw, the lower positioning block is connected with the two ends of the cross beam through a second clamping block, the second clamping block is fixedly connected with the cross beam through a second locking screw, the upper fixing rod is fixedly connected on the bottom surface of the upper positioning block, the lower fixing rod is fixedly connected on the top surface of the lower positioning block, the bottom end of the telescopic rod is fixedly connected with the top end of the lower fixing rod, the top end of the telescopic rod is inserted into the upper fixing rod, the side of telescopic link is last from down evenly being provided with the elastic limiting block, evenly be provided with spacing hole on the side of going up the dead lever, the elastic limiting block with spacing hole phase-match.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109714929B (en) * | 2019-01-17 | 2023-06-30 | 浙江建设职业技术学院 | Offline cache terminal and method for intelligent campus management system |
| CN110275383A (en) * | 2019-07-01 | 2019-09-24 | 重庆长教科技有限公司 | Projection screen and its optical projection system for multimedia teaching |
| CN110851214B (en) * | 2019-09-29 | 2021-01-29 | 深圳市火乐科技发展有限公司 | Projection picture control method and related product |
| CN111554131A (en) * | 2020-05-07 | 2020-08-18 | 杨刚华 | Demonstration courseware for enhancing understanding ability of students to language abstract concepts |
| CN113241026A (en) * | 2021-05-26 | 2021-08-10 | 嘉兴市永旺企业管理咨询有限公司 | Speech system and installation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892815U (en) * | 2010-10-22 | 2011-07-06 | 崔定楠 | Ground lifting projection screen |
| CN205563062U (en) * | 2016-02-19 | 2016-09-07 | 袁成花 | A portable projection arrangement for geography teaching |
| CN206348972U (en) * | 2016-12-09 | 2017-07-21 | 甘肃建筑职业技术学院 | A kind of economic management major course interactive teaching exhibiting device |
| CN107037682A (en) * | 2017-06-13 | 2017-08-11 | 再兴电子(深圳)有限公司 | Egg type projector |
| CN207074339U (en) * | 2017-05-02 | 2018-03-06 | 李萍 | A kind of computer teaching projection screen |
| CN207249346U (en) * | 2017-09-26 | 2018-04-17 | 安徽省精英机械制造有限公司 | A kind of projection curtain device |
| CN207471288U (en) * | 2017-11-09 | 2018-06-08 | 台州市塞邦贸易有限公司 | A kind of stepless projection lamp of rotation |
| CN207502898U (en) * | 2017-11-21 | 2018-06-15 | 杨文勇 | A kind of electric projecting curtain power cord termination |
| CN209149596U (en) * | 2018-08-07 | 2019-07-23 | 浙江建设职业技术学院 | A kind of large-size screen monitors laser projection device for Intelligent platform |
-
2018
- 2018-08-07 CN CN201810888959.1A patent/CN108877321B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892815U (en) * | 2010-10-22 | 2011-07-06 | 崔定楠 | Ground lifting projection screen |
| CN205563062U (en) * | 2016-02-19 | 2016-09-07 | 袁成花 | A portable projection arrangement for geography teaching |
| CN206348972U (en) * | 2016-12-09 | 2017-07-21 | 甘肃建筑职业技术学院 | A kind of economic management major course interactive teaching exhibiting device |
| CN207074339U (en) * | 2017-05-02 | 2018-03-06 | 李萍 | A kind of computer teaching projection screen |
| CN107037682A (en) * | 2017-06-13 | 2017-08-11 | 再兴电子(深圳)有限公司 | Egg type projector |
| CN207249346U (en) * | 2017-09-26 | 2018-04-17 | 安徽省精英机械制造有限公司 | A kind of projection curtain device |
| CN207471288U (en) * | 2017-11-09 | 2018-06-08 | 台州市塞邦贸易有限公司 | A kind of stepless projection lamp of rotation |
| CN207502898U (en) * | 2017-11-21 | 2018-06-15 | 杨文勇 | A kind of electric projecting curtain power cord termination |
| CN209149596U (en) * | 2018-08-07 | 2019-07-23 | 浙江建设职业技术学院 | A kind of large-size screen monitors laser projection device for Intelligent platform |
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|---|---|
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