CN113345279A - Multimedia business-giving projection device - Google Patents
Multimedia business-giving projection device Download PDFInfo
- Publication number
- CN113345279A CN113345279A CN202110702815.4A CN202110702815A CN113345279A CN 113345279 A CN113345279 A CN 113345279A CN 202110702815 A CN202110702815 A CN 202110702815A CN 113345279 A CN113345279 A CN 113345279A
- Authority
- CN
- China
- Prior art keywords
- rod
- overturning
- assembly
- frame body
- movie
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004744 fabric Substances 0.000 claims abstract description 53
- 230000007306 turnover Effects 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 33
- 210000001503 joint Anatomy 0.000 claims description 32
- 230000008602 contraction Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Manipulator (AREA)
Abstract
The invention discloses a multimedia teaching projection device which comprises a classroom, wherein a cavity body is arranged on the inner wall of the classroom, a front vertical surface of the cavity body is provided with a through hole, a cavity body is arranged in an inner cavity of the cavity body, the left side and the right side of the inner cavity wall of the cavity body are fixedly connected with side plates, a connecting plate is welded between the two groups of side plates near the lower part, and a second overturning assembly is arranged at the upper part of the connecting plate. This multimedia business transformation projection arrangement when the vaulting pole upwards displacement, will drive articulated piece and fold, and the catch and the last leading pole of connecting are close to each other, because last leading pole, well leading pole and vaulting pole and external pole all are fixed for articulated with articulated piece to realized that fixing bearing wheel, catch and last leading pole three can receive the side, realized the folding to the projection cloth simultaneously.
Description
Technical Field
The invention relates to the field of teaching, in particular to a multimedia business teaching projection device.
Background
And (3) service: the meaning of imparting knowledge or technique, when carrying out the industry among the prior art, the instructor only carries out the industry through multi-media or off-line, and what the industry taught is to give students with the instructor graduate income, multi-media or off-line industry can't be real knows whether the student is carefully watching, traditional multi-media industry imparting projection arrangement on the market at present, there are some weak points, the application adopts the projector to carry out the conduction knowledge, the instructor can show the graduate income through the projection cloth, also can know whether the student is real simultaneously watching, and adopt folding mode to accomodate imparting projection cloth and connection structure, do not occupy the place.
Disclosure of Invention
The present invention is directed to a multimedia business projection apparatus, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multi-media business teaching projection arrangement, includes the classroom, the cavity body is installed at the interior wall position in classroom, the preceding facade of the cavity body is equipped with to wearing the mouth, the internal cavity of installing of cavity, the interior cavity wall left and right sides fixedly connected with curb plate of cavity, it is two sets of there is the connecting plate by lower position between the curb plate, the upper portion position of connecting plate is provided with upset subassembly two, be provided with upset subassembly one on the upset frame of upset subassembly two, be provided with movie & TV cloth installation mechanism in the last framework of upset subassembly one, movie & TV cloth installation mechanism includes movie & TV cloth installation component and movie & TV cloth folding assembly.
The movie and television cloth mounting assembly comprises a longitudinal rod, a support rod, a contraction rod, a middle front rod, an upper front rod, a hinge piece, an external rod and a movie and television cloth body; one end of the longitudinal rod is connected with the upper frame body, the other end of the longitudinal rod is perpendicularly connected with the supporting rod, two ends of the supporting rod are respectively perpendicularly provided with a contraction rod, and the top of each contraction rod is connected with a rotating shaft of the movie and television cloth folding assembly.
An upper preposed rod and a middle preposed rod are arranged between the two contraction rods, and locking rings are arranged on the upper preposed rod and the middle preposed rod.
The two telescopic rods between the upper front rod and the middle front rod are provided with external rods, the upper front rod, the external rods and the middle front rod which are positioned on the same side are hinged with hinged pieces, and the movie and television cloth body is limited between the upper front rod and the middle front rod by the hinged pieces and the lock ring.
The hinged sheets are hinged when being connected with the upper front rod, the external rod and the middle front rod, and the hinged sheets penetrate through the installation through holes of the film and television cloth body; the lock ring also passes through the installation perforation of the film and television cloth body, and the hinged sheet and the lock ring are matched for use to limit the film and television cloth body.
And for the more smooth installation movie & TV cloth body, install the extension spring on the shrink pole, extension spring staggered connection forms cross limit structure, and movie & TV cloth body back is supported by cross limit structure.
The movie and television cloth folding assembly comprises a rotating shaft, a winding wheel, a chain and a butt joint seat; the butt joint seat is installed to the tip symmetry of pivot, and the relative butt joint seat of pivot rotates, and the butt joint seat is connected with the shrink pole, and the one end of pivot is connected with movie & TV cloth folding motor, installs around the wheel in the pivot, around being equipped with the chain on the wheel, the free end and the vertical pole of chain are connected and drive the vertical pole and move.
In order to further support the movie and television cloth body, a fixed bearing wheel is arranged on the rotating shaft, the fixed bearing wheel does not rotate, a chain is arranged outside the fixed bearing wheel, and the chain is connected with the upper front rod.
The inner wall of the classroom is provided with a walking assembly, the walking assembly comprises a front-back moving component, an up-down moving component and a projector, the up-down moving component is installed on the front-back moving component and moves along with the front-back moving component, and the projector is installed on the up-down moving component.
The front-back moving component comprises a moving plate, traveling wheels, a front-back moving track, a transverse rod and a front-back moving motor; the front-back moving track is oppositely arranged on the inner wall of a classroom, the moving plate is provided with traveling wheels at the contact part with the front-back moving track, the traveling wheels are connected through a transverse rod, the front-back moving motor is arranged on the moving plate and drives the transverse rod to rotate, and the transverse rod drives the traveling wheels to move in the front-back moving track.
The up-and-down moving component comprises a supporting plate, a gear linkage motor, a vertical worm and a projection connecting disc; the supporting plate is arranged in the middle of the movable plate, the vertical worm vertically penetrates through the supporting plate and then is connected with the projection connecting disc, and the projector is connected with the projection connecting disc; the gear linkage motor is installed on the supporting plate, and a worm wheel of the gear linkage motor is in meshing transmission with the vertical worm and drives the vertical worm to move up and down along the supporting plate.
The first overturning assembly comprises an overturning height-adjusting component and an overturning component; the overturning and height-adjusting component comprises a lower frame body, a middle frame body, a movable rod and a height-adjusting part; the middle frame body is fixedly connected with one end of the movable rod, and the other end of the movable rod penetrates through the lower frame body and then is connected with the turnover frame; specifically, a bottom plate is welded on the lower frame body, a second base plate is installed on the left side and the right side of the upper surface of the bottom plate, and the movable rod penetrates through the second base plate and then is connected with the turnover frame.
The lower frame body is positioned below the middle frame body, and the lower frame body and the middle frame body are connected through the height-adjusting piece, and the distance between the lower frame body and the middle frame body is changed by the height-adjusting piece.
The upset component, including cylinder, welding rod and last framework, the cylinder body and the lower framework of cylinder are articulated, specifically are that the outer frame wall of framework has L shape backup pad by the welding of back position down, and the cylinder body of cylinder articulates in L shape backup pad.
The piston rod of cylinder is articulated with the welding rod, and the welding rod is fixed at last framework outer wall, goes up the framework and articulates in putting the framework in, and the cylinder drives the relative middle framework rotation of framework in of going up.
Specifically, the left side and the right side of the upper frame body are connected with shaft plates through rotating rods, the bottom ends of the shaft plates are fixedly connected with top plates, and the top plates are installed on the middle frame body.
The height adjusting piece comprises a screw rod lifting cylinder, a rear screw rod assembly, a front screw rod assembly, a bend gear cylinder I, a bend gear cylinder II and a motor; the screw rod lifting cylinders are distributed around the middle frame body, the top of each screw rod lifting cylinder is connected with the middle frame body, a jacking column is arranged in the inner cavity of each screw rod lifting cylinder, and the jacking column penetrates through the lower frame and is in threaded connection with the lower frame; the motor is arranged on the lower frame, an output shaft of the motor is in transmission connection with an inner shaft power input end of the redirection gear cylinder II, two power output ends of the redirection gear cylinder II are in transmission connection with an inner shaft power input end of the redirection gear cylinder I through a rotating rod respectively, and two power output ends of each redirection gear cylinder I are in transmission connection with a rotating rod of the front screw assembly and a rotating rod of the rear screw assembly respectively; the setting direction of the rotating rod is vertical to the setting direction of the rotating rod;
and the preposed screw rod assembly and the postpositive screw rod assembly are respectively connected with a screw rod lifting cylinder, the inner cavities of the preposed screw rod assembly and the postpositive screw rod assembly are respectively meshed with a rotating rod, the rotating rods are in transmission connection with corresponding top columns and drive the top columns to rotate, and the rotation of the top columns is converted into linear movement of the lower frame.
The second overturning assembly comprises an overturning power member and an overturning folding member, the overturning power member comprises symmetrically arranged overturning power parts and a connecting transmission shaft, and the connecting transmission shaft is used for connecting the two overturning power parts in a transmission manner; the overturning folding component is arranged between the two overturning power parts and is connected with a belt of the overturning power part.
The overturning power part comprises a motor body, an opening vertical box and a belt, the opening vertical box is installed on the overturning stand column, the overturning stand column is installed on the connecting plate, the motor body is installed on the opening vertical box, an output shaft of the motor body extends into the opening vertical box and is in transmission connection with the overturning driving wheel, and the overturning driving wheel is connected with the connecting transmission shaft; the overturning driving wheel is in transmission connection with the overturning driven wheel through a belt, and the overturning driven wheel is installed in the opening bundle box.
The top welding of the vertical box of opening has the top piece, the lower surface of top piece has the axle piece to weld by the right position.
The turnover folding component comprises a turnover supporting leg, a turnover frame, an upper supporting block and a lower supporting block; the upper supporting block and the lower supporting block are arranged on the overturning butt joint plate in parallel, the overturning butt joint plate is arranged on a guide rail of the overturning supporting leg through a sliding block, and the overturning butt joint plate is connected with a corresponding belt and driven by the belt to move up and down;
the left side and the right side of the upper supporting block are provided with a first hinge seat, the first hinge seat is connected with a second hinge seat through a telescopic mechanism, the second hinge seat is arranged on the turnover frame, one end, far away from the second hinge seat, of the turnover frame is connected with the lower supporting block, and the turnover frame rotates relative to the lower supporting block.
Specifically, a convex block is arranged on a lower supporting block and is rotationally connected with a butt joint seat through a rotating rod, and the butt joint seat is welded with a turnover frame;
compared with the prior art, the invention has the beneficial effects that:
according to the folding turnover frame, when the turnover frame is pulled out, the motor body is controlled to operate, the turnover driving wheel is driven to rotate after the motor body operates, the turnover driving wheel and the belt arranged on the turnover driven wheel are driven to drive the upper supporting block and the lower supporting block to move up and down, the telescopic mechanism connected between the first hinge seat and the second hinge seat is controlled to stretch, the butt joint seat connected to the rear portion of the outer frame of the turnover frame rotates inside the protruding block, the turnover frame can be pulled to move towards the upper supporting block, the turnover frame is folded, the structure is optimized, and the design is reasonable.
According to the invention, the lower frame body arranged at the upper frame part of the turnover frame is used for turnover again, a specific control motor operates to drive the rotating rods arranged in the direction-changing tooth cylinders II to rotate, when the rotating rods rotate, the rotating rods meshed with the direction-changing tooth cylinders I connected to two ends of the two groups of rotating rods will also rotate, the worm arranged in the rear screw assembly at one end part of the rotating rods will rotate and drive the top column arranged in the screw rod lifting cylinder to move up and down, and when the top column moves up, the distance between the middle frame body and the lower frame body will be controlled.
According to the projection cloth folding device, when projection cloth is used, one end of the rotating shaft is controlled to be connected with the motor to operate, the winding wheel is driven to rotate, the chain wound on the outer wall of the winding wheel pulls the longitudinal rod to move upwards and contacts the support rod to pull the longitudinal rod upwards, the hinge piece is driven to fold when the support rod moves upwards, the middle front rod and the upper front rod are close to each other, and the upper front rod, the middle front rod, the support rod and the external rod are hinged and fixed with the hinge piece and are used for folding the projection cloth due to the effect of the contraction rod.
Drawings
FIG. 1 is a schematic view of a multimedia business projection apparatus;
FIG. 2 is an enlarged view of a portion A of FIG. 1 of a multimedia teaching projection apparatus;
FIG. 3 is a diagram of the internal structure of a classroom in a multimedia teaching projection apparatus;
FIG. 4 is a diagram of the exterior structure of a classroom in a multimedia teaching projection apparatus;
FIG. 5 is a diagram of a first flip assembly of the multimedia business projection apparatus;
FIG. 6 is a structural diagram of a second flip module in the multimedia business projection apparatus;
FIG. 7 is an enlarged view of the multimedia teaching projection apparatus at the point B in FIG. 3;
FIG. 8 is a structural diagram of a mechanism for mounting a film and a piece of cloth in a projection apparatus for multimedia business;
fig. 9 is a frame structure diagram of a movie cloth mounting mechanism in the multimedia business projection apparatus.
In the figure: classroom 1, walking component 2, side plate 3, cavity 4, walking wheel 5, turnover component I6, turnover component II 7, movie and television cloth mounting mechanism 8, connecting plate 9, movie and television cloth body 10, contraction rod 11, winding wheel 12, chain 13, rotating shaft 14, upper front rod 15, fixed bearing wheel 16, butt joint seat 17, chain 18, hinge plate 19, external rod 20, middle front rod 21, connecting plate 22, tension spring 23, lock ring 24, vertical rod 25, support rod 26, cavity body 27, butt joint 28, bend gear cylinder I29, front screw rod component 30, upper frame body 31, welding rod 32, shaft plate 33, top plate 34, lower frame body 35, rotating rod 36, bend gear cylinder II 37, air cylinder 38, motor 39, rear screw rod component 40, top column 41, backing plate I42, bottom plate 43, backing plate II 44, movable rod 45, screw rod lifting cylinder 46, middle frame body 47, rotating rod 48, open vertical box 49, belt 50, belt lifting box 45, and other parts, The motor comprises a motor body 51, a top sheet 52, a shaft sheet 53, a first hinge seat 54, an upper supporting block 55, a protruding block 56, a butt joint seat 57, a second hinge seat 58, a lower supporting block 59, a stay 60 and a turnover frame 61.
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 to 9, in an embodiment of the present invention, a multimedia teaching projection apparatus includes a classroom 1, a cavity 27 is installed at an inner wall of the classroom 1, a front vertical surface of the cavity 27 is provided with a through hole 28, a cavity 4 is installed in the cavity 27, side plates 3 are fixedly connected to left and right sides of an inner cavity wall of the cavity 4, a connecting plate 9 is arranged between two sets of the side plates 3 at a lower portion, an overturning assembly two 7 is arranged at an upper portion of the connecting plate 9, an overturning assembly one 6 is arranged on an overturning frame 61 of the overturning assembly two 7, and a movie cloth installation mechanism 8 is arranged on an upper frame 31 of the overturning assembly one 6.
The movie cloth mounting mechanism 8 comprises a movie cloth mounting assembly and a movie cloth folding assembly; the movie and television cloth mounting assembly comprises a longitudinal rod 25, a support rod 26, a contraction rod 11, a middle front rod 21, an upper front rod 15, a hinge piece 19, an external rod 20 and a movie and television cloth body 10; one end of the vertical rod 25 is connected with the upper frame 31, the other end of the vertical rod 25 is vertically connected with the stay bar 26, two ends of the stay bar 26 are respectively and vertically provided with a contraction rod 11, and the top of the contraction rod 11 is connected with the rotating shaft 14 of the movie and television cloth folding assembly.
An upper preposed rod 15 and a middle preposed rod 21 are arranged between the two contraction rods 11, and locking rings 24 are arranged on the upper preposed rod 15 and the middle preposed rod 21.
The two telescopic rods 11 positioned between the upper front rod 15 and the middle front rod 21 are respectively provided with an external rod 20, the upper front rod 15, the external rod 20 and the middle front rod 21 positioned on the same side are respectively hinged with a hinge piece 19, and the movie and television cloth body 10 is limited between the upper front rod 15 and the middle front rod 21 by the hinge pieces 19 and a lock ring 24.
The hinged sheets are hinged when being connected with the upper front rod 15, the external rod 20 and the middle front rod 21, and the hinged sheets pass through the installation through holes of the film and television cloth body 10; the lock ring 24 is also a mounting hole passing through the body 10, and the hinge plate and the lock ring cooperate to limit the body.
And for the more smooth installation movie & TV cloth body, install extension spring 23 on the shrink pole, extension spring 23 staggered connection forms cross limit structure, and movie & TV cloth body back is supported by cross limit structure.
The folding assembly of the movie and television cloth comprises a rotating shaft 14, a winding wheel 12, a chain 13 and a butt joint seat 17; the butt joint seat 17 is symmetrically installed at the end part of the rotating shaft 14, the rotating shaft 14 rotates relative to the butt joint seat 17, the butt joint seat 17 is connected with the contraction rod 11, one end of the rotating shaft 14 is connected with a folding motor of the movie and television cloth, the rotating shaft 14 is provided with the winding wheel 12, the winding wheel 12 is wound with the chain 13, and the free end of the chain 13 is connected with the longitudinal rod 25 and drives the longitudinal rod 25 to move.
In order to further support the video cloth body, a fixed bearing wheel 16 is arranged on the rotating shaft 14, the fixed bearing wheel does not rotate, a chain 18 is arranged outside the fixed bearing wheel 16, and the chain 18 is connected with the upper front rod 15.
The classroom teaching device is characterized in that a walking assembly 2 is arranged on the inner wall of the classroom 1, the walking assembly 2 comprises a front-back moving component, a left-right moving component and a projector, the left-right moving component is slidably mounted on the front-back moving component and moves along with the front-back moving component, and the projector is mounted on the left-right moving component.
The forward and backward moving member comprises a moving plate 63, a traveling wheel 5, a forward and backward moving track 68, a transverse rod 65 and a forward and backward moving motor 67; the front-back moving track 68 is oppositely arranged on the inner wall of the classroom 1, the travelling wheels 5 are arranged at the contact positions of the moving plate 63 and the front-back moving track 68, the travelling wheels 5 are connected through a transverse rod 65, a front-back moving motor 67 is arranged on the moving plate 63, the transverse rod 65 is driven by the front-back moving motor 67 to rotate, and the transverse rod 65 drives the travelling wheels to move in the front-back moving track 68.
The up-and-down moving component comprises a support plate, a gear linkage motor 64, a vertical worm 62 and a projection connecting disc 66; the supporting plate is arranged in the middle of the moving plate 63, the vertical worm 62 vertically penetrates through the supporting plate and then is connected with the projection connecting disc 66, and the projector is connected with the projection connecting disc 66; the gear linkage motor 64 is installed on the supporting plate, and a worm wheel of the gear linkage motor 64 is in meshing transmission with the vertical worm 62 and drives the vertical worm 62 to move up and down along the supporting plate, so that the up-down position of the projection connecting disc is changed, and the height of the projector is adjusted.
The overturning assembly I6 comprises an overturning height-adjusting component and an overturning component; the overturning height-adjusting component comprises a lower frame body 35, a middle frame body 47, a movable rod 45 and a height-adjusting part; the middle frame body 47 is fixedly connected with one end of the movable rod 45, and the other end of the movable rod 45 penetrates through the lower frame body 35 and then is connected with the turnover frame 61; specifically, a bottom plate 43 is welded on the lower frame body 35, a second backing plate 44 is mounted on each of the left side and the right side of the upper surface of the bottom plate 43, and a movable rod 45 penetrates through the second backing plate 44 and then is connected with the turnover frame 61.
The lower frame 35 is located below the middle frame 47, and the lower frame 35 and the middle frame 47 are connected by an elevation member, and the distance between the lower frame 35 and the middle frame 47 is changed by the elevation member.
The overturning component comprises a cylinder 38, a welding rod 32 and an upper frame body 31, wherein a cylinder body of the cylinder 38 is hinged with a lower frame body 35, specifically, an L-shaped support plate is welded on the rear part of the outer frame wall of the lower frame body 35, and the cylinder body of the cylinder 38 is hinged on the L-shaped support plate.
The piston rod of cylinder 38 is articulated with welding rod 32, and welding rod 32 is fixed in last framework 31 outer wall, and last framework 31 articulates on middle framework 47, and cylinder 38 drives and goes up framework 31 and rotate for middle framework 47.
Specifically, the left and right sides of the upper frame 31 are connected with the shaft plates 33 through the rotating rods, the bottom ends of the shaft plates 33 are fixedly connected with the top plates 34, and the top plates 34 are installed on the middle frame 47.
The height adjusting part comprises a screw rod lifting cylinder 46, a rear screw rod assembly 40, a front screw rod assembly 30, a first direction changing gear cylinder 29, a second direction changing gear cylinder 37 and a motor 39; the screw rod lifting cylinders 46 are distributed around the middle frame body 47, the top of each screw rod lifting cylinder 46 is connected with the middle frame body 47, the inner cavity of each screw rod lifting cylinder 46 is provided with a top column 41, and the top column 41 penetrates through the lower frame 35 and is in threaded connection with the lower frame; the motor 39 is mounted on the lower frame 35, an output shaft of the motor 39 is in transmission connection with an inner shaft power input end of the redirection gear cylinder II 37, two power output ends of the redirection gear cylinder II 37 are in transmission connection with an inner shaft power input end of the redirection gear cylinder I29 through a rotating rod 36 respectively, and two power output ends of each redirection gear cylinder I29 are in transmission connection with a rotating rod 48 of the front screw assembly 30 and a rotating rod 48 of the rear screw assembly 40 respectively; the arrangement direction of the rotating rod 48 is vertical to that of the rotating rod 36;
the front screw assembly 30 and the rear screw assembly 40 are respectively connected with a screw rod lifting cylinder 46, the inner cavities of the front screw assembly 30 and the rear screw assembly 40 are respectively engaged with a rotating rod 48, the rotating rod 48 is in transmission connection with the corresponding top pillar 41 and drives the top pillar to rotate, and the rotation of the top pillar is converted into linear movement of the lower frame.
The second overturning assembly 7 comprises an overturning power member and an overturning folding member, the overturning power member comprises symmetrically arranged overturning power parts and a connecting transmission shaft, and the connecting transmission shaft is used for connecting the two overturning power parts in a transmission manner; the flip fold member is disposed between the two flip power members and is connected to the belt 50 of the flip power members.
The overturning power part comprises a motor body 51, an opening vertical box 49 and a belt 50, the opening vertical box 49 is installed on an overturning upright column, the overturning upright column is installed on the connecting plate 9, the motor body 51 is installed on the opening vertical box 49, an output shaft of the motor body 51 extends into the opening vertical box 49 to be in transmission connection with an overturning driving wheel, and the overturning driving wheel is connected with a connecting transmission shaft; the overturning driving wheel is in transmission connection with an overturning driven wheel through a belt 50, and the overturning driven wheel is arranged in the opening bundle box;
the top end of the open vertical box 49 is welded with a top plate 52, and the lower surface of the top plate 52 close to the right is welded with a shaft piece 53.
The overturning folding component comprises an overturning supporting leg, an overturning frame 61, an upper supporting block 55 and a lower supporting block 59; a stay 60 is arranged between the turnover frames; the upper supporting block 55 and the lower supporting block 59 are arranged on the overturning butt joint plate in parallel, the overturning butt joint plate is arranged on a guide rail of the overturning supporting leg through a sliding block, and the overturning butt joint plate is connected with a corresponding belt and driven by the belt to move up and down;
the left side and the right side of the upper supporting block 55 are provided with a first hinged seat 54, the first hinged seat 54 is connected with a second hinged seat 58 through a telescopic mechanism, the second hinged seat 58 is arranged on a turning frame 61, one end, far away from the second hinged seat 58, of the turning frame 61 is connected with a lower supporting block 59, and the turning frame 61 rotates relative to the lower supporting block 59.
Specifically, a protruding block 56 is arranged on a lower supporting block 59, the protruding block 56 is rotatably connected with a butt joint seat 57 through a rotating rod, and the butt joint seat 57 is welded with a turnover frame 61.
The working principle of the invention is as follows: the turnover assembly is characterized in that the turnover assembly is pre-installed, the cavity 4 is installed on the left side and the right side of the inner frame of the cavity 27, the side plates 3 are reinforced on the inner sides of the cavity 4 again, and meanwhile, the connecting plates 9 are welded on the inner sides of the two groups of side plates 3 close to the lower portion and used for fixing supporting leg portions in the structure of the turnover assembly II 7.
Specifically, when pulling out turnover frame 61, operate through control motor body 51, will drive the carousel and rotate after motor body 51 operates, and the outer wall mounting's of carousel belt 50 will transmit, be used for driving overhead supporting shoe 55 and lower supporting shoe 59 and carry out displacement from top to bottom, the telescopic machanism of the connection between articulated seat 54 and articulated seat two 58 of again controlled stretches out and draws back, telescopic machanism can adopt telescopic cylinder, the connection is also will be rotatory in bulge 56 inboard at the butt joint seat 57 of the back position of turnover frame 61 frame simultaneously, can stimulate turnover frame 61 and move towards overhead supporting shoe 55 direction, realize folding turnover frame 61.
The folding principle is as follows: the protruding block 56 is hinged to the butt joint seat 57, the butt joint seat 57 and the turnover frame 61 are fixed, meanwhile, the second hinged seat 58 is telescopically hinged to the telescopic mechanism, in addition, the other end of the telescopic mechanism is hinged to the first hinged seat 54, when the telescopic mechanism extends, the distance between the second hinged seat 58 and the first hinged seat 54 is increased, the second hinged seat 58 is pushed to turn downwards, the second hinged seat 58 is pushed to be parallel to the second turnover assembly 7, all connection keys in the mechanism are hinged, otherwise, the telescopic mechanism contracts, the second hinged seat 58 is upwards turned over and pulled, after the hinged seat is pulled to a certain angle, the telescopic mechanism does not operate, and the turnover frame 61 fixed by the second hinged seat 58 at the moment and the first hinged seat 54 form a stable state through the telescopic mechanism.
The lower frame body 35 arranged on the upper frame part of the turnover frame 61 is used for turning over again, the specific control motor 39 operates to drive the rotating rods 36 arranged in the direction-changing gear cylinders II 37 to rotate, when the rotating rods 36 rotate, the rotating rods 48 meshed with the direction-changing gear cylinders I29 connected to two ends of the two groups of rotating rods 36 will also rotate, the worm arranged in the rear screw assembly 40 at one end part of the rotating rods 48 will rotate and drive the top column 41 arranged in the screw rod lifting cylinder 46 to move up and down, and when the top column 41 moves up, the distance between the middle frame body 47 and the lower frame body 35 will be controlled;
the control cylinder 38 operates, and the driving end of the control cylinder jacks the upper frame 31 to turn over forwards through the welding rod 32, so that the rotation of the rotating shaft and the shaft plate 33 at the front part of the outer frame of the upper frame 31 is realized;
meanwhile, the vertical rod 25 connected with the lower part of the outer frame of the upper frame 31 is used for supporting and fixing the support rod 26;
specifically, the method comprises the following steps: when the projection cloth is used, one end of the control rotating shaft 14 is connected with a motor to operate, the winding wheel 12 is driven to rotate, the chain 13 wound on the outer wall of the winding wheel 12 pulls the longitudinal rod 25 to move upwards and contacts the stay bar 26 to pull the longitudinal rod upwards, the hinge piece 19 is driven to fold when the stay bar 26 moves upwards, the connected lock ring 24 and the upper preposed rod 15 are close to each other, and the upper preposed rod 15, the middle preposed rod 21, the stay bar 26 and the external rod 20 are hinged and fixed with the hinge piece 19, so that the fixed bearing wheel 16, the lock ring 24 and the upper preposed rod 15 can be retracted, and meanwhile, the projection cloth is folded;
when the projector is controlled, the front-back moving motor 67 is controlled to operate, the travelling wheel 5 is driven to rotate through the transverse rod 65, the travelling wheel 5 is located in a transverse groove of the front-back moving track 68, front-back displacement of the moving plate 63 can be achieved, then through operation of the gear linkage motor 64, the worm wheel connected with the driving end drives the vertical worm 62 to move up and down at the supporting plate, adjustment of up-down displacement of the projection connecting disc 66 is achieved, and the projection connecting disc 66 is used for clamping the projector.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. A multimedia teaching projection device comprises a classroom (1), and is characterized in that: the classroom movie and television cloth installation device is characterized in that a cavity body (27) is installed on the inner wall of the classroom (1), a front vertical face of the cavity body (27) is provided with a through opening (28), a cavity body (4) is installed in the cavity body (27), the left side and the right side of the inner cavity wall of the cavity body (4) are fixedly connected with side plates (3), a connecting plate (9) is arranged between the two groups of side plates (3) at the position close to the lower part, a turnover assembly II (7) is arranged at the upper part of the connecting plate (9), a turnover assembly I (6) is arranged on a turnover frame (61) of the turnover assembly II (7), a movie and television cloth installation mechanism (8) is arranged on an upper frame body (31) of the turnover assembly I (6), and the movie and television cloth installation mechanism (8) comprises a movie and television cloth installation assembly and a movie and television cloth folding assembly;
the movie and television cloth mounting assembly comprises a longitudinal rod (25), a support rod (26), a contraction rod (11), a middle front rod (21), an upper front rod (15), a hinge piece (19), an external rod (20) and a movie and television cloth body (10); one end of the longitudinal rod (25) is connected with the upper frame body (31), the other end of the longitudinal rod (25) is vertically connected with the stay bar (26), two ends of the stay bar (26) are respectively and vertically provided with a contraction rod (11), and the top of the contraction rod (11) is connected with a rotating shaft (14) of the movie and television cloth folding assembly;
an upper preposed rod (15) and a middle preposed rod (21) are arranged between the two telescopic rods (11), and locking rings (24) are arranged on the upper preposed rod (15) and the middle preposed rod (21);
external rods (20) are arranged on the two contraction rods (11) between the upper front rod (15) and the middle front rod (21), the upper front rod (15), the external rods (20) and the middle front rod (21) which are positioned on the same side are hinged with hinge pieces (19), and the movie and television cloth body (10) is limited between the upper front rod (15) and the middle front rod (21) by the hinge pieces (19) and a lock ring (24);
the movie and television cloth folding assembly comprises a rotating shaft (14), a winding wheel (12), a chain (13) and a butt joint seat (17); butt joint seat (17) are installed to the tip symmetry of pivot (14), and pivot (14) rotate relative butt joint seat (17), and butt joint seat (17) are connected with shrink pole (11), and the one end of pivot (14) is connected with movie & TV cloth folding motor, installs around wheel (12) on pivot (14), around being equipped with chain (13) on around wheel (12), the free end and the vertical pole (25) of chain (13) are connected and drive vertical pole (25) and move.
2. The multimedia teaching projection apparatus of claim 1, wherein: the classroom teaching device is characterized in that a walking assembly (2) is arranged on the inner wall of the classroom (1), the walking assembly (2) comprises a front-back moving component, an up-down moving component and a projector, the up-down moving component is mounted on the front-back moving component and moves along with the front-back moving component, and the projector is mounted on the up-down moving component.
3. The multimedia teaching projection apparatus of claim 2, wherein: the front-back moving component comprises a moving plate (63), a traveling wheel (5), a front-back moving track (68), a transverse rod (65) and a front-back moving motor (67); the front-back moving track (68) is relatively installed on the inner wall of a classroom (1), the moving plate (63) is provided with a traveling wheel (5) at the contact position with the front-back moving track (68), the traveling wheel (5) is connected through a transverse rod (65), the front-back moving motor (67) is installed on the moving plate (63), the front-back moving motor (67) drives the transverse rod (65) to rotate, and the transverse rod (65) drives the traveling wheel to move in the front-back moving track (68).
4. The multimedia teaching projection apparatus of claim 3, wherein: the up-and-down moving component comprises a supporting plate, a gear linkage motor (64), a vertical worm (62) and a projection connecting disc (66); the supporting plate is arranged in the middle of the moving plate (63), the vertical worm (62) vertically penetrates through the supporting plate and then is connected with the projection connecting disc (66), and the projector is connected with the projection connecting disc (66); the gear linkage motor (64) is arranged on the supporting plate, and a worm wheel of the gear linkage motor (64) is in meshing transmission with the vertical worm (62) and drives the vertical worm (62) to move up and down along the supporting plate.
5. The multimedia teaching projection apparatus of claim 1, wherein: the first overturning assembly (6) comprises an overturning height-adjusting component and an overturning component; the overturning and height-adjusting component comprises a lower frame body (35), a middle frame body (47), a movable rod (45) and a height-adjusting piece; the middle frame body (47) is fixedly connected with one end of the movable rod (45), and the other end of the movable rod (45) penetrates through the lower frame body (35) and then is connected with the turnover frame (61); the lower frame body (35) is positioned below the middle frame body (47), the lower frame body (35) and the middle frame body (47) are connected through the height adjusting piece, and the distance between the lower frame body (35) and the middle frame body (47) is changed through the height adjusting piece;
the overturning component comprises an air cylinder (38), a welding rod (32) and an upper frame body (31), wherein the cylinder body of the air cylinder (38) is hinged to a lower frame body (35), a piston rod of the air cylinder (38) is hinged to the welding rod (32), the welding rod (32) is fixed to the outer wall of the upper frame body (31), the upper frame body (31) is hinged to a middle frame body (47), and the air cylinder (38) drives the upper frame body (31) to rotate relative to the middle frame body (47).
6. The multimedia teaching projection device of claim 5, wherein: the height adjusting piece comprises a screw rod lifting cylinder (46), a rear screw rod assembly (40), a front screw rod assembly (30), a redirection gear cylinder I (29), a redirection gear cylinder II (37) and a motor (39);
the screw rod lifting cylinders (46) are distributed around the middle frame body (47), the top of each screw rod lifting cylinder (46) is connected with the middle frame body (47), the inner cavity of each screw rod lifting cylinder (46) is provided with a top column (41), and the top column (41) penetrates through the lower frame (35) and is in threaded connection with the lower frame;
the motor (39) is arranged on the lower frame (35), an output shaft of the motor (39) is in transmission connection with an inner shaft power input end of the redirection gear cylinder II (37), two power output ends of the redirection gear cylinder II (37) are in transmission connection with an inner shaft power input end of the redirection gear cylinder I (29) through a rotating rod (36), and two power output ends of each redirection gear cylinder I (29) are in transmission connection with a rotating rod (48) of the front screw assembly (30) and a rotating rod (48) of the rear screw assembly (40); the arrangement direction of the rotating rod (48) is vertical to the arrangement direction of the rotating rod (36);
and the front screw assembly (30) and the rear screw assembly (40) are respectively connected with a screw rod lifting cylinder (46), inner cavities of the front screw assembly (30) and the rear screw assembly (40) are respectively meshed with a rotating rod (48), the rotating rod (48) is in transmission connection with the corresponding jacking column (41) and drives the jacking column to rotate, and the jacking column rotates and is converted into linear movement of the lower frame.
7. The multimedia teaching projection device of claim 5 or 6, wherein: the second overturning assembly (7) comprises an overturning power member and an overturning folding member, the overturning power member comprises symmetrically arranged overturning power parts and a connecting transmission shaft, and the connecting transmission shaft is used for connecting the two overturning power parts in a transmission manner; the turnover folding component is arranged between the two turnover power parts and is connected with a belt (50) of the turnover power parts.
8. The multimedia teaching projection apparatus of claim 7, wherein: the overturning power part comprises a motor body (51), an opening vertical box (49) and a belt (50), the opening vertical box (49) is installed on an overturning upright post, the overturning upright post is installed on a connecting plate (9), the motor body (51) is installed on the opening vertical box (49), an output shaft of the motor body (51) extends into the opening vertical box (49) to be in transmission connection with an overturning driving wheel, and the overturning driving wheel is connected with the connecting transmission shaft; the overturning driving wheel is in transmission connection with the overturning driven wheel through a belt (50), and the overturning driven wheel is installed in the opening bundle box.
9. The multimedia teaching projection apparatus of claim 8, wherein: the overturning and folding component comprises an overturning supporting leg, an overturning frame (61), an upper supporting block (55) and a lower supporting block (59); the upper supporting block (55) and the lower supporting block (59) are arranged on the overturning butt joint plate in parallel, the overturning butt joint plate is arranged on a guide rail of the overturning supporting leg through a sliding block, and the overturning butt joint plate is connected with a corresponding belt and driven by the belt to move up and down;
articulated seat one (54) is installed to the left and right sides of overhead supporting shoe (55), and articulated seat one (54) is connected with articulated seat two (58) through telescopic machanism, and articulated seat two (58) are installed on upset frame (61), and the one end that upset frame (61) kept away from articulated seat two (58) is connected with underlying supporting shoe (59) and upset frame (61) is put supporting shoe (59) down relatively and is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702815.4A CN113345279A (en) | 2021-06-24 | 2021-06-24 | Multimedia business-giving projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702815.4A CN113345279A (en) | 2021-06-24 | 2021-06-24 | Multimedia business-giving projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113345279A true CN113345279A (en) | 2021-09-03 |
Family
ID=77478231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110702815.4A Pending CN113345279A (en) | 2021-06-24 | 2021-06-24 | Multimedia business-giving projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113345279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910813A (en) * | 2021-09-14 | 2022-01-11 | 刘晓娟 | Teaching display device for improving understanding ability of old people |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544204A (en) * | 2016-11-06 | 2018-01-05 | 合肥迈斯软件科技有限公司 | One kind can hide intake type projection screen |
| CN207067651U (en) * | 2017-07-12 | 2018-03-02 | 尹煜炎 | A kind of Novel projection cloth |
| CN109239043A (en) * | 2018-11-09 | 2019-01-18 | 合肥景彰科技有限公司 | A kind of photosynthetic delayed fluorescence displaying wall with multiple pulses arousal function |
| CN109870875A (en) * | 2019-04-15 | 2019-06-11 | 贾涵楠 | A kind of wrap-up projection screen and its application method with high stability |
| US20190227419A1 (en) * | 2014-09-25 | 2019-07-25 | Steve H. McNelley | Communication stage and display systems |
| CN209992802U (en) * | 2019-05-27 | 2020-01-24 | 东莞市金博网络科技有限公司 | Projection type computer display device |
| CN110989281A (en) * | 2019-12-20 | 2020-04-10 | 歌尔科技有限公司 | Opening and closing structure and display device |
| CN111513463A (en) * | 2020-06-24 | 2020-08-11 | 江苏海事职业技术学院 | Sight podium of english teaching usefulness |
| CN212460837U (en) * | 2020-07-04 | 2021-02-02 | 田昀 | Multimedia teaching device for hotel management |
-
2021
- 2021-06-24 CN CN202110702815.4A patent/CN113345279A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190227419A1 (en) * | 2014-09-25 | 2019-07-25 | Steve H. McNelley | Communication stage and display systems |
| CN107544204A (en) * | 2016-11-06 | 2018-01-05 | 合肥迈斯软件科技有限公司 | One kind can hide intake type projection screen |
| CN207067651U (en) * | 2017-07-12 | 2018-03-02 | 尹煜炎 | A kind of Novel projection cloth |
| CN109239043A (en) * | 2018-11-09 | 2019-01-18 | 合肥景彰科技有限公司 | A kind of photosynthetic delayed fluorescence displaying wall with multiple pulses arousal function |
| CN109870875A (en) * | 2019-04-15 | 2019-06-11 | 贾涵楠 | A kind of wrap-up projection screen and its application method with high stability |
| CN209992802U (en) * | 2019-05-27 | 2020-01-24 | 东莞市金博网络科技有限公司 | Projection type computer display device |
| CN110989281A (en) * | 2019-12-20 | 2020-04-10 | 歌尔科技有限公司 | Opening and closing structure and display device |
| CN111513463A (en) * | 2020-06-24 | 2020-08-11 | 江苏海事职业技术学院 | Sight podium of english teaching usefulness |
| CN212460837U (en) * | 2020-07-04 | 2021-02-02 | 田昀 | Multimedia teaching device for hotel management |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113910813A (en) * | 2021-09-14 | 2022-01-11 | 刘晓娟 | Teaching display device for improving understanding ability of old people |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102351135B (en) | Self-moving lifting platform | |
| CN113345279A (en) | Multimedia business-giving projection device | |
| CN112788162A (en) | Folding screen bending mechanism and mobile terminal | |
| CN112031454A (en) | Automatic gluing machine for wall joints of prefabricated buildings | |
| CN212781657U (en) | Curtain assembly structure for software engineering projection teaching | |
| CN109461349A (en) | A kind of child teaching uses the teaching robot with color identification function | |
| CN115781132B (en) | Welding set is used in street lamp pole production | |
| CN208646425U (en) | A kind of high school student's blackboard of angle adjustable | |
| CN204211201U (en) | Be provided with the sheet collector of clamping device | |
| CN215126257U (en) | Teaching device of plug-type blackboard and projecting apparatus | |
| CN214377612U (en) | Dustproof liftable fender frame | |
| CN2726653Y (en) | Elliptical trace treadmill with stroke regulatable function | |
| CN107856483A (en) | A kind of tyre dismounting power-assisted arm assembly | |
| CN113442271A (en) | Jacking contraction type flue forming die | |
| CN113888932A (en) | Make things convenient for mutual locking regulation formula of memory contrast board for chinese-Japanese language teaching | |
| CN201481683U (en) | Electric wheel chair | |
| CN208329740U (en) | A kind of telescopic lifting platform | |
| CN219629176U (en) | Zero wall sofa iron stand | |
| CN207241082U (en) | A kind of aluminium honeycomb core roll-forming mechanism | |
| TWI440489B (en) | The Structure of Elliptical Motion Machine | |
| CN218623204U (en) | Construction support | |
| CN219743810U (en) | Dramatic and movie and television shape training device | |
| CN217678526U (en) | Road cutting machine for road maintenance | |
| CN220263194U (en) | Opening pulling mechanism of polycrystalline silicon packaging bag | |
| CN214925247U (en) | Mount frame equipment with automatic commentaries on classics frame device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |
|
| RJ01 | Rejection of invention patent application after publication |