CN112558403A - Projector curtain with adjustable size - Google Patents
Projector curtain with adjustable size Download PDFInfo
- Publication number
- CN112558403A CN112558403A CN202110020005.0A CN202110020005A CN112558403A CN 112558403 A CN112558403 A CN 112558403A CN 202110020005 A CN202110020005 A CN 202110020005A CN 112558403 A CN112558403 A CN 112558403A
- Authority
- CN
- China
- Prior art keywords
- cavity
- rotating
- sliding
- fixedly connected
- wheel
- 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.)
- Granted
Links
Images
Classifications
-
- 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
Abstract
The invention relates to the field of display screens, and discloses a projector curtain with adjustable size, which comprises stretching bodies which are arranged in bilateral symmetry, wherein a rotary cavity with a rightward opening and a downward opening is arranged in the left stretching body, a rotary connecting body which extends leftwards into the rotary cavity is fixedly connected to the left end surface of the right stretching body, a gear transmission cavity which extends rightwards into the right stretching body is arranged in the rotary connecting body, gear sliding cavities are arranged in the left stretching body and the right stretching body, a proper projection curtain is formed by splicing two triangular curtains, meanwhile, the triangular curtains are driven to be rolled in or out by the rotation of two rotary drums which are vertically arranged after being unfolded, the isometric adjustment of the projection curtain is realized, so that when the distance of a projector is changed, the effect that the size of the projection curtain is matched with a projection picture can be controlled, the universality of the curtain is improved, when the projector is used, the two rotary drums can be rotatably accommodated in the accommodating cavities, the influence on the overall aesthetic property of the background wall is avoided.
Description
Technical Field
The invention relates to the field of display screens, in particular to a projector curtain with adjustable size.
Background
The projector is used as equipment for exchanging and sharing messages of people, the size of a projection curtain has great influence on the viewing comfort level of people, the projected picture can be scaled in an equal ratio according to the size of a room and the difference of the distance between videos, so that the size of the required projection curtain can be changed, the size of the projection curtain at the current stage is fixed and unchanged, the projector cannot be applied or cannot perfectly match the projection picture after the installation position of the projector is changed, and the universality is poor.
Disclosure of Invention
The invention aims to provide a projector curtain with adjustable size, which can overcome the defects of the prior art, thereby improving the practicability of the equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a projector curtain with adjustable size, which comprises stretching bodies which are arranged in a bilateral symmetry manner, wherein a rotary cavity with a rightward opening and a downward opening is arranged in the stretching body at the left side, the left end surface of the stretching body at the right side is fixedly connected with a rotary connecting body which extends leftwards into the rotary cavity, a gear transmission cavity which extends rightwards into the stretching body at the right side is arranged in the rotary connecting body, gear sliding cavities are arranged in the stretching bodies at the left side and the right side, a power transmission cavity which is positioned at the rear side of the gear sliding cavity is arranged in the stretching body at the left side, a driving motor which is positioned at the front side of the rotary cavity is arranged in the stretching body at the left side, the rear end surface of the driving motor is fixedly connected with a driving shaft which extends backwards and penetrates through the rotary cavity, the rotary connecting body and the power transmission cavity at the left side to, the driving shaft is fixedly connected with a driving wheel positioned in the gear transmission cavity, the front end wall of the gear transmission cavity is connected with a driven shaft which extends backwards and penetrates through the gear transmission cavity and the right side from the power transmission cavity to the right side and is positioned in the rear end wall of the power transmission cavity in a rotating and matching manner, the driven shaft is fixedly connected with a driven wheel positioned in the gear transmission cavity, the driven wheel and the driving wheel are connected with a rotating synchronous belt in a power matching manner, the driving shaft is fixedly connected with an auxiliary wheel positioned in the power transmission cavity at the left side, the driven shaft is fixedly connected with an auxiliary driven wheel positioned in the power transmission cavity at the right side, the front end wall of the gear sliding cavity is connected with a rotating output shaft which extends backwards and penetrates through the gear sliding cavity and the power transmission cavity to the rear end wall of the power transmission cavity in a rotating and matching manner, and the, the left side rotatory output wheel with power fit is connected with the gear conveyer belt between the accessory wheel, the right side rotatory output wheel with power fit is connected with the accessory wheel hold-in range between the driven accessory wheel.
On the basis of the technical scheme, a free rotating shaft which extends backwards and penetrates through the gear sliding cavity to the rear end wall of the gear sliding cavity is connected to the front end wall of the gear sliding cavity in a rotating and matching manner, a horizontal conveying belt which is positioned in the gear sliding cavity is connected between the rotating output shaft and the free rotating shaft in a power matching manner, a rotating friction wheel which is positioned in the gear sliding cavity and positioned on the front side of the horizontal conveying belt is fixedly connected to the rotating output shaft, a sliding winding wheel which is abutted against the horizontal conveying belt and can be abutted against the rotating friction wheel is arranged in the gear sliding cavity, a rotating shaft sliding cavity is communicated with the front end wall of the gear sliding cavity, a containing cavity with a downward opening is communicated with the front end wall of the rotating shaft sliding cavity, and a sliding output shaft which extends forwards and penetrates through the rotating shaft sliding cavity to the containing cavity is fixedly connected to, the front end face of the sliding output shaft is fixedly connected with a rotating sliding body located in the containing cavity.
On the basis of the technical scheme, a rolling gear cavity is arranged in the rotary sliding body, under an initial state, the rolling gear cavity is close to the side end wall of the rotary connecting body and is communicated with a friction transmission cavity close to the side opening of the rotary connecting body, the front end wall of the friction transmission cavity is connected with a friction rotating shaft which extends backwards and penetrates through the friction transmission cavity to the rear end wall of the friction transmission cavity in a matched mode, the friction rotating shaft is fixedly connected with a sliding friction wheel which can be in friction fit with the inner wall of the containing cavity, the friction rotating shaft is fixedly connected with a friction belt wheel which is positioned in the friction transmission cavity and is fixedly connected with the rear end face of the sliding friction wheel, the rear end wall of the rolling gear cavity is connected with a steering fixed shaft which extends forwards into the rolling gear cavity in a matched mode, and the tail end of the front side of the steering fixed, turn to the band pulley with power fit is connected with friction hold-in range between the friction band pulley, the rolling gear chamber is kept away from it is connected to be close to rotate connector side end wall internal rotation fit rotate connector side extend to the rolling gear intracavity and to keeping away from rotate connector side extend to accomodate the rolling output shaft of intracavity, the rolling output shaft is close to rotate connector side end fixedly connected with be located the rolling gear intracavity and with turn to the rolling helical gear of band pulley meshing, the rolling output shaft is kept away from rotate connector side end fixedly connected with is located accomodate the rotary drum of intracavity, fixedly connected with curtain on the rotary drum.
On the basis of the technical proposal, the extension body is internally provided with a positioning cavity which is positioned at the side of the containing cavity close to the rotary connecting body, a unidirectional rotating cavity is arranged in the extending body and is positioned at the side of the positioning cavity close to the rotating connecting body, the positioning cavity is close to the end wall of the rotary connecting body side and is connected with a positioning rotating shaft which extends into the positioning cavity far away from the rotary connecting body side and extends through the unidirectional rotating cavity to the unidirectional rotating cavity close to the end wall of the rotary connecting body side in a rotating and matching way, the tail end of the positioning rotating shaft far away from the rotating connecting body is fixedly connected with a wire wheel positioned in the positioning cavity, a torsion spring is fixedly connected between the end face of the side of the wire wheel far away from the rotary connecting body and the end wall of the positioning cavity far away from the rotary connecting body, the positioning rotating shaft is close to the tail end of the rotating connecting body, and a locking wheel located in the one-way rotating cavity is fixedly connected to the tail end of the rotating connecting body.
On the basis of the technical scheme, a limiting rotating shaft is connected between the left end wall and the right end wall of the unidirectional rotating cavity in a rotating matching manner, a clamping strip capable of abutting against the locking wheel is fixedly connected onto the limiting rotating shaft, a limiting spring is fixedly connected between the front end surface of the clamping strip and the front end wall of the unidirectional rotating cavity, a limiting cavity is formed in the side end wall of the rotating connector, which is close to the sliding cavity, of the rotating shaft sliding cavity, a limiting stopper is fixedly connected onto the sliding output shaft in the limiting cavity, a triggering cavity is formed in the side end wall of the gear sliding cavity, which is close to the rotating connector, in a communicating manner, a triggering cavity is formed in the side end wall of the triggering cavity, which can abut against the sliding winding wheel is connected into the triggering cavity in a sliding matching manner, a triggering spring is fixedly connected between the side end surface of the rotating connector and the, under the initial state, the curtain downside end with fixedly connected with location stay cord between the line wheel.
The invention has the beneficial effects that: the amalgamation through two triangle-shaped curtains forms suitable projection curtain, the rotation of two rotary drums through the mutually perpendicular setting after the expansion drives being drawn into or rolling out of triangle-shaped curtain simultaneously, realize the geometric control to the projection curtain, thereby when reaching the projecting apparatus distance change, can control projection curtain size to the effect that matches with the projection picture, the general nature of curtain has been increased, two rotary drums can rotate to accomodate to accomodating the intracavity after finishing using, avoid influencing the whole aesthetic property of wall.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of an overall structure of a size-adjustable projector curtain according to the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
Fig. 3 is a schematic diagram of the structure B-B in fig. 2.
Fig. 4 is a schematic diagram of the structure C-C in fig. 3.
Fig. 5 is a schematic diagram of the structure D-D in fig. 3.
FIG. 6 is a schematic diagram of the structure of E-E in FIG. 1.
Fig. 7 is an expanded view of the operation state of fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
With reference to fig. 1-7, the projector curtain with adjustable size includes an extending body 15 disposed in bilateral symmetry, a rotating cavity 64 with a right opening and a downward opening is disposed in the extending body 15 at the left side, a rotating connector 16 is fixedly connected to the left end surface of the extending body 15 at the right side and extends leftward into the rotating cavity 64, a gear transmission cavity 49 is disposed in the rotating connector 16 and extends rightward into the extending body 15, a gear sliding cavity 40 is disposed in each of the extending body 15 at the left and right sides, a power transmission cavity 47 is disposed in the rear of the gear sliding cavity 40 in each of the extending body 15 at the left side, a driving motor 54 is disposed in the front of the rotating cavity 64 in the extending body 15 at the left side, a rear end surface of the driving motor 54 is fixedly connected to a driving shaft 52 extending backward and penetrating through the rotating cavity 64, the rotating connector 16 and the power transmission cavity 47 to the left side and extending into the rear end wall of the power transmission cavity 47 at the left side, the driving shaft 52 with the rotary connector 16 friction fit, fixedly connected with is located on the driving shaft 52 drive wheel 53 in the gear transmission chamber 49, the end wall internal rotation fit in front end of the gear transmission chamber 49 is connected with and extends backward and runs through gear transmission chamber 49 and right side power transmission chamber 47 to right side driven shaft 57 in the end wall of power transmission chamber 47, fixedly connected with is located on the driven shaft 57 driven wheel 56 in the gear transmission chamber 49, driven wheel 56 with power fit is connected with rotation synchronous belt 55 between the drive wheel 53, fixedly connected with is located on the left side auxiliary wheel 48 in the power transmission chamber 47 on the driving shaft 52, fixedly connected with is located on the right side driven auxiliary wheel 50 in the power transmission chamber 47 on the driven shaft 57, the end wall internal rotation fit in front end of the gear sliding chamber 40 is connected with and extends backward and runs through the gear sliding chamber 40 and the power transmission chamber 47 to the end wall in the power transmission chamber 47 The rotary output shaft 38 is fixedly connected with a rotary output wheel 37 positioned in the power transmission cavity 47, a gear transmission belt 46 is connected between the rotary output wheel 37 on the left side and the auxiliary wheel 48 in a power fit manner, and an auxiliary wheel synchronous belt 51 is connected between the rotary output wheel 37 on the right side and the driven auxiliary wheel 50 in a power fit manner.
In addition, in an embodiment, a free rotating shaft 65 extending backwards and penetrating through the gear sliding cavity 40 to the rear end wall of the gear sliding cavity 40 is connected to the front end wall of the gear sliding cavity 40 in a rotationally-matched manner, a horizontal conveyor belt 39 located in the gear sliding cavity 40 is connected between the rotary output shaft 38 and the free rotating shaft 65 in a rotationally-matched manner, a rotary friction wheel 41 located in the gear sliding cavity 40 and located on the front side of the horizontal conveyor belt 39 is fixedly connected to the rotary output shaft 38, a sliding winding wheel 42 abutting against the horizontal conveyor belt 39 and capable of abutting against the rotary friction wheel 41 is arranged in the gear sliding cavity 40, a rotating shaft sliding cavity 22 is communicated with the front end wall of the gear sliding cavity 40, a storage cavity 11 with a downward opening is communicated with the front end wall of the rotating shaft sliding cavity 22, and a sliding transmission wheel 42 extending forwards and penetrating through the rotating shaft sliding cavity 22 to the storage cavity 11 is fixedly connected to the front end face of the sliding winding And a rotary sliding body 13 positioned in the accommodating cavity 11 is fixedly connected with the front end surface of the slide output shaft 43.
In addition, in an embodiment, a rolling gear cavity 33 is disposed in the rotary sliding body 13, in an initial state, a friction transmission cavity 34 that is open to a side close to the rotary connecting body 16 is disposed in the rolling gear cavity 33 in communication with a side end wall close to the rotary connecting body 16, a friction rotating shaft 36 that extends backwards and penetrates through the friction transmission cavity 34 to a rear end wall of the friction transmission cavity 34 is connected in a rotationally fitting manner to a front end wall of the friction transmission cavity 34, a sliding friction wheel 31 that can be in friction fitting with an inner wall of the accommodating cavity 11 is fixedly connected to the friction rotating shaft 36, a friction pulley 30 that is located in the friction transmission cavity 34 and is fixedly connected to a rear end surface of the sliding friction wheel 31 is fixedly connected to the friction rotating shaft 36, a rolling fixed shaft 25 that extends forwards and into the rolling gear cavity 33 is connected in a rotationally fitting manner to a rear end wall of, the front end of the steering fixing shaft 25 is fixedly connected with a steering belt wheel 23 positioned in the winding gear cavity 33, a friction synchronous belt 35 is connected between the steering pulley 23 and the friction pulley 30 in a power fit manner, the rolling gear cavity 33 is far away from the side end wall of the rotary connecting body 16 and is connected with a rolling output shaft 21 which extends to the rolling gear cavity 33 close to the side of the rotary connecting body 16 and extends to the containing cavity 11 far away from the side of the rotary connecting body 16 in a rotating matching way, the winding output shaft 21 is fixedly connected with a winding helical gear 32 which is positioned in the winding gear cavity 33 and meshed with the steering belt wheel 23 at the end close to the side of the rotary connecting body 16, the winding output shaft 21 is far away from the tail end of the side of the rotating connecting body 16 and is fixedly connected with a rotating drum 12 positioned in the accommodating cavity 11, and a curtain 10 is fixedly connected onto the rotating drum 12.
In addition, in one embodiment, a positioning cavity 19 is arranged in the extension body 15 and is located on the side of the receiving cavity 11 close to the rotary connecting body 16, a unidirectional rotation cavity 63 is arranged in the extension body 15 and is located on the side of the positioning cavity 19 close to the rotary connecting body 16, a positioning rotating shaft 20 which extends into the positioning cavity 19 towards the side far from the rotary connecting body 16 and extends through the unidirectional rotation cavity 63 towards the side close to the rotary connecting body 16 is connected in the positioning cavity 19 close to the side end wall of the rotary connecting body 16 in a rotationally matched manner, a wire wheel 18 located in the positioning cavity 19 is fixedly connected to the end of the positioning rotating shaft 20 far from the rotary connecting body 16, and a torsion spring 14 is fixedly connected between the end face of the wire wheel 18 far from the side of the rotary connecting body 16 and the side end wall of the positioning cavity 19 far from the rotary connecting body 16, the end of the positioning rotating shaft 20 close to the side of the rotating connecting body 16 is fixedly connected with a locking wheel 58 positioned in the one-way rotating cavity 63.
In addition, in one embodiment, a limiting rotating shaft 60 is connected between the left and right end walls of the unidirectional rotating cavity 63 in a rotating fit manner, a clamping strip 61 capable of abutting against the locking wheel 58 is fixedly connected to the limiting rotating shaft 60, a limiting spring 62 is fixedly connected between the front end surface of the clamping strip 61 and the front end wall of the unidirectional rotating cavity 63, a limiting cavity 44 is communicated with the rotating connecting body 16 side end wall of the rotating shaft sliding cavity 22, a limiting block 45 is fixedly connected to the sliding output shaft 43 and slides in the limiting cavity 44, a triggering cavity 28 is communicated with the gear sliding cavity 40 near the rotating connecting body 16 side end wall, a triggering block 26 capable of abutting against the sliding winding wheel 42 is connected in the triggering cavity 28 in a sliding fit manner, and a triggering spring 27 is fixedly connected between the triggering block 26 near the rotating connecting body 16 side end surface and the bottom wall of the triggering cavity 28, a trigger pull rope 29 is fixedly connected between the end surface of the trigger block 26 close to the side of the rotary connecting body 16 and the rear end surface of the clamping strip 61, and a positioning pull rope 17 is fixedly connected between the lower end of the curtain 10 and the wire wheel 18 in an initial state.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
As shown in fig. 1-7, when the device of the present invention is in the initial state, the torsion spring 14 is in the power-storing state, the trigger spring 27 is in the compressed state, the limit spring 62 is in the relaxed state, the trigger pull rope 29 is in the relaxed state, and the positioning pull rope 17 is in the pull-in state;
sequence of mechanical actions of the whole device:
when the working is started, the driving motor 54 is started, the driving shaft 52 is driven to rotate by the driving motor 54, the driving shaft 52 rotates to drive the auxiliary wheel 48 and the rotating connecting body 16 to rotate, the rotating connecting body 16 rotates to drive the right extending body 15 to rotate, the right extending body 15 rotates to the lower end face of the left extending body 15 and is still, the rotating connecting body 16 and the driving shaft 52 rotate in a friction mode, the left extending body 15 and the right extending body 15 are vertically distributed at the moment, the driving motor 54 rotates to drive the driving wheel 53 to rotate, the driving wheel 53 rotates to drive the driven wheel 56 to rotate through the rotating synchronous belt 55, the driven wheel 56 rotates to drive the driven shaft 57 to rotate, the driven auxiliary wheel 57 rotates to drive the driven auxiliary wheel 50 to rotate, the driven auxiliary wheel 50 rotates to, meanwhile, the auxiliary wheel 48 rotates to drive the left rotary output wheel 37 to rotate through the gear conveyor belt 46;
the rotation of the rotary output wheel 37 drives the rotation of the rotary output shaft 38, the rotation of the rotary output shaft 38 drives the horizontal conveyor belt 39 and the rotary friction wheel 41 to rotate, the rotation of the horizontal conveyor belt 39 drives the sliding winding wheel 42 to rotate in a friction mode through the conveyor belt, meanwhile, the rotating friction wheel 41 rotates to drive the sliding winding wheel 42 to rotate through friction, the sliding winding wheel 42 rotates to drive the sliding output shaft 43 to rotate, the sliding output shaft 43 rotates to drive the limiting block 45 and the rotating sliding body 13 to rotate, the rotating sliding body 13 rotates to drive the winding output shaft 21 to rotate, the winding output shaft 21 rotates to drive the rotary drum 12 to rotate, the rotary drum 12 rotates to drive the curtain 10 to rotate, when the limiting block 45 rotates to the right end face to abut against the upper end wall of the limiting cavity 44, the rotary drum 12 just rotates to be vertical to the extending body 15, the curtain 10 is vertical to the extending body 15, the sliding output shaft 43 is stationary at the moment, and the rotary drum 12 is stationary;
when the curtain 10 rotates to be vertical to the extending body 15, the positioning pull rope 17 is in a loosening state, so that the wire wheel 18 rotates under the torsion action of the torsion spring 14, the wire wheel 18 rotates to drive the positioning rotating shaft 20 to rotate, the positioning rotating shaft 20 rotates to drive the locking wheel 58 to rotate, when the torsion spring 14 rotates to be normal, the curtain 10 just slides to the lower end face of the extending body 15, at the moment, the horizontal conveyor belt 39 rotates to drive the sliding winding wheel 42 to slide towards the side far away from the rotating connecting body 16 through the conveyor belt, the sliding winding wheel 42 slides to enable the trigger block 26 to lose the barrier and slide towards the side far away from the rotating connecting body 16 under the thrust action of the trigger spring 27, the trigger block 26 slides to enable the trigger pull rope 29 to be in a tensioning state, so that the clamping strip 61 overcomes the tension of the limiting spring 62 to rotate towards the side far away from the rotating connecting body 16 under the tension of the, at this time, the locking wheel 58 is limited to be unable to reverse, at this time, the sliding take-up wheel 42 slides to drive the sliding output shaft 43 to slide, the sliding output shaft 43 slides to drive the rotating sliding body 13 to slide, the rotating sliding body 13 slides to drive the sliding friction wheel 31 to slide, so that the sliding friction wheel 31 rotates under the friction effect, the sliding friction wheel 31 rotates to drive the friction rotating shaft 36 to rotate, the friction rotating shaft 36 rotates to drive the friction belt wheel 30 to rotate, the friction belt wheel 30 rotates to drive the steering belt wheel 23 to rotate through the friction synchronous belt 35, the steering belt wheel 23 rotates to drive the rolling helical gear 32 to rotate through meshing, the rolling helical gear 32 rotates to drive the rolling output shaft 21 to rotate, the rolling output shaft 21 rotates to drive the rotary drum 12 to rotate, and because the locking wheel 58 is limited to be unable to rotate at this time, the locking wheel 58 is static, so that the wire wheel 18 is static, the positioning pull rope 17 is static, the rotary The curtain 10 is unfolded;
when the left rotary sliding body 13 slides to a preset position, the right rotary sliding body 13 also slides to a corresponding position, the left rotary drum 12 is just staggered with the right rotary drum 12, and the left and right curtain 10 respectively positioned in front of and behind the left and right rotary drums 12 can be just spliced together to form a complete curtain, so that the spreading of curtains with different sizes is completed;
when the projection is finished and the screen needs to be rolled up, the driving motor 54 is reversely rotated, the driving motor 54 reversely rotates to drive the driving shaft 52 to reversely rotate, the driving shaft 52 reversely rotates to drive the rotary connecting body 16 to reversely rotate, the rotary connecting body 16 reversely rotates to drive the right extending body 15 to reversely rotate, after the right extending body 15 reversely rotates to reset, the rotary connecting body 16 is limited to be still, the rotary connecting body 16 and the driving shaft 52 rub and rotate, the driving motor 54 reversely rotates to drive the driving wheel 53 to reversely rotate, so that the horizontal conveying belt 39 is driven to reversely rotate, the horizontal conveying belt 39 reversely rotates to drive the sliding rolling wheel 42 to reversely slide, the sliding rolling wheel 42 reversely slides to drive the rotary sliding body 13 to reversely slide, and the rotary sliding. When the rotating drum 12 reversely rotates to reversely slide to reset, the sliding winding wheel 31 reversely rotates to reversely rotate the rotating drum 12, so that the curtain is wound, when the rotating drum 12 reversely rotates to reversely slide to reset, the sliding winding wheel 42 pushes the trigger block 26 to overcome the pushing force of the trigger spring 27 to be placed to slide to the side close to the rotary connecting body 16 to reset, the trigger block 26 resets to enable the trigger pull rope 29 to be in a loose state, so that the clamping strip 61 loses the pulling force of the trigger pull rope 29 and reversely rotates to be separated from the locking wheel 58 under the pulling force of the limiting spring 62, so that the locking wheel 58 is in a free rotation state, at the moment, the horizontal conveyor belt 39 and the rotating friction wheel 41 reversely rotate to drive the sliding winding wheel 42 to reversely rotate, the sliding winding wheel 42 reversely rotates to drive the limiting block 45 to reset through the limiting cavity 44, meanwhile, the sliding winding wheel 42 rotates to drive the rotating slide 13 to reversely rotate to reset, the, the curtain 10 is reset, the positioning pull rope 17 pulls the wire wheel 18 to rotate, the wire wheel 18 rotates to drive the torsion spring 14 to rotate to store force, the wire wheel 18 rotates to drive the positioning rotating shaft 20 to rotate, the positioning rotating shaft 20 rotates to drive the locking wheel 58 to rotate freely, and the curtain winding work is completed.
The invention has the beneficial effects that: the amalgamation through two triangle-shaped curtains forms suitable projection curtain, the rotation of two rotary drums through the mutually perpendicular setting after the expansion drives being drawn into or rolling out of triangle-shaped curtain simultaneously, realize the geometric control to the projection curtain, thereby when reaching the projecting apparatus distance change, can control projection curtain size to the effect that matches with the projection picture, the general nature of curtain has been increased, two rotary drums can rotate to accomodate to accomodating the intracavity after finishing using, avoid influencing the whole aesthetic property of wall.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a projecting apparatus curtain of adjustable size of a dimension, includes the rotation connector, its characterized in that: comprises a stretching body which is arranged in a bilateral symmetry way, a rotary cavity which is provided with a right opening and a downward opening is arranged in the stretching body at the left side, a left end face of the stretching body at the right side is fixedly connected with a rotary connecting body which is extended to the rotary cavity leftwards, a gear transmission cavity which is extended to the right side is arranged in the rotary connecting body, gear sliding cavities are arranged in the stretching body at the left side and the right side, a power transmission cavity which is arranged at the rear side of the gear sliding cavity is arranged in the stretching body at the left side, a driving motor which is arranged at the front side of the rotary cavity is arranged in the stretching body at the left side, a rear end face of the driving motor is fixedly connected with a driving shaft which is extended to penetrate through the rotary cavity, the rotary connecting body and the power transmission cavity to the left side and is arranged at the rear end wall of the power transmission cavity at, a driven shaft which extends backwards and penetrates through the gear transmission cavity and the right side of the front end wall of the gear transmission cavity to the right side of the rear end wall of the power transmission cavity is connected in a rotationally matched manner in the front end wall of the gear transmission cavity, a driven wheel which is positioned in the gear transmission cavity is fixedly connected on the driven shaft, a rotating synchronous belt is connected between the driven wheel and the driving wheel in a rotationally matched manner, an auxiliary wheel which is positioned in the power transmission cavity at the left side of the driving shaft is fixedly connected on the driven shaft, a driven auxiliary wheel which is positioned in the power transmission cavity at the right side of the driven shaft is fixedly connected on the driven shaft, a rotating output shaft which extends backwards and penetrates through the gear sliding cavity and the power transmission cavity to the rear end wall of the power transmission cavity is connected in a rotationally matched manner in the front end wall of the gear sliding cavity, a rotary output wheel which is positioned in, and an auxiliary wheel synchronous belt is connected between the rotary output wheel and the driven auxiliary wheel on the right side in a power fit manner.
2. A resizable projector curtain as recited in claim 1, wherein: the front end wall of the gear sliding cavity is connected with a free rotating shaft which extends backwards and penetrates through the gear sliding cavity to the rear end wall of the gear sliding cavity in a rotating and matching manner, a horizontal conveying belt positioned in the gear sliding cavity is connected between the rotating output shaft and the free rotating shaft in a power matching manner, the rotating output shaft is fixedly connected with a rotating friction wheel which is positioned in the gear sliding cavity and positioned on the front side of the horizontal conveying belt, a sliding winding wheel which is abutted against the horizontal conveying belt and can be abutted against the rotating friction wheel is arranged in the gear sliding cavity, the front end wall of the gear sliding cavity is communicated with a rotating shaft sliding cavity, the front end wall of the rotating shaft sliding cavity is communicated with a containing cavity with a downward opening, and the front end surface of the sliding winding wheel is fixedly connected with a sliding output shaft which extends forwards and penetrates through the rotating shaft, the front end face of the sliding output shaft is fixedly connected with a rotating sliding body located in the containing cavity.
3. A resizable projector curtain as recited in claim 2, wherein: the rotary sliding body is internally provided with a rolling gear cavity, the rolling gear cavity is close to the side end wall of the rotary connecting body and communicated with a friction transmission cavity close to the side opening of the rotary connecting body in an initial state, the front end wall of the friction transmission cavity is connected with a friction rotating shaft which extends backwards and penetrates through the friction transmission cavity to the rear end wall of the friction transmission cavity in a matched mode, the friction rotating shaft is fixedly connected with a sliding friction wheel which can be in matched mode with the inner wall of the containing cavity in a friction mode, the friction rotating shaft is fixedly connected with a friction belt wheel which is positioned in the friction transmission cavity and is fixedly connected with the rear end face of the sliding friction wheel, the rear end wall of the rolling gear cavity is connected with a steering fixing shaft which extends forwards into the rolling gear cavity in a matched mode, the tail end of the front side of the steering, turn to the band pulley with power fit is connected with friction hold-in range between the friction band pulley, the rolling gear chamber is kept away from it is connected to be close to rotate connector side end wall internal rotation fit rotate connector side extend to the rolling gear intracavity and to keeping away from rotate connector side extend to accomodate the rolling output shaft of intracavity, the rolling output shaft is close to rotate connector side end fixedly connected with be located the rolling gear intracavity and with turn to the rolling helical gear of band pulley meshing, the rolling output shaft is kept away from rotate connector side end fixedly connected with is located accomodate the rotary drum of intracavity, fixedly connected with curtain on the rotary drum.
4. A resizable projector curtain as recited in claim 3, wherein: a positioning cavity which is positioned at the side of the containing cavity close to the rotary connecting body is arranged in the extension body, a one-way rotary cavity which is positioned at the side of the positioning cavity close to the rotary connecting body is arranged in the extension body, the positioning cavity is close to the end wall of the rotary connecting body side and is connected with a positioning rotating shaft which extends into the positioning cavity far away from the rotary connecting body side and extends through the unidirectional rotating cavity to the unidirectional rotating cavity close to the end wall of the rotary connecting body side in a rotating and matching way, the tail end of the positioning rotating shaft far away from the rotating connecting body is fixedly connected with a wire wheel positioned in the positioning cavity, a torsion spring is fixedly connected between the end face of the side of the wire wheel far away from the rotary connecting body and the end wall of the positioning cavity far away from the rotary connecting body, the positioning rotating shaft is close to the tail end of the rotating connecting body, and a locking wheel located in the one-way rotating cavity is fixedly connected to the tail end of the rotating connecting body.
5. A resizable projector curtain as recited in claim 4, wherein: a limiting rotating shaft is connected between the left end wall and the right end wall of the unidirectional rotating cavity in a rotating matching manner, a clamping strip capable of abutting against the locking wheel is fixedly connected onto the limiting rotating shaft, a limiting spring is fixedly connected between the front end surface of the clamping strip and the front end wall of the unidirectional rotating cavity, a limiting cavity is arranged in the rotating shaft sliding cavity close to the side end wall of the rotating connector in a communicating manner, a sliding limiting block in the limiting cavity is fixedly connected onto the sliding output shaft, a triggering cavity is arranged in the gear sliding cavity close to the side end wall of the rotating connector in a communicating manner, a triggering block capable of abutting against the sliding winding wheel is connected in the triggering cavity in a sliding matching manner, a triggering spring is fixedly connected between the side end surface of the rotating connector and the bottom wall of the triggering cavity, and a triggering pull rope is fixedly connected between the side end surface, under the initial state, the curtain downside end with fixedly connected with location stay cord between the line wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020005.0A CN112558403B (en) | 2021-01-07 | 2021-01-07 | Projector curtain with adjustable size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110020005.0A CN112558403B (en) | 2021-01-07 | 2021-01-07 | Projector curtain with adjustable size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112558403A true CN112558403A (en) | 2021-03-26 |
| CN112558403B CN112558403B (en) | 2022-03-18 |
Family
ID=75035368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110020005.0A Active CN112558403B (en) | 2021-01-07 | 2021-01-07 | Projector curtain with adjustable size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112558403B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1048749A (en) * | 1996-08-06 | 1998-02-20 | Toppan Printing Co Ltd | Projection screen |
| CN201319109Y (en) * | 2008-12-18 | 2009-09-30 | 极品影视设备科技(深圳)有限公司 | Variable length-width ratio projection curtain |
| US20110132557A1 (en) * | 2009-12-07 | 2011-06-09 | Seiko Epson Corporation | Screen unit |
| CN108828890A (en) * | 2018-06-25 | 2018-11-16 | 合肥利元杰信息科技有限公司 | Projection device is used in a kind of teaching |
| CN209028408U (en) * | 2018-10-24 | 2019-06-25 | 广州粤韬电子科技有限公司 | A kind of folded projection curtain |
| CN111022889A (en) * | 2020-01-06 | 2020-04-17 | 广州进观智能设备有限公司 | Can hide projection subassembly of accomodating convenient to maintenance |
| CN210573168U (en) * | 2019-01-22 | 2020-05-19 | 宜春学院 | Be convenient for install literature news teaching and use projection screen |
-
2021
- 2021-01-07 CN CN202110020005.0A patent/CN112558403B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1048749A (en) * | 1996-08-06 | 1998-02-20 | Toppan Printing Co Ltd | Projection screen |
| CN201319109Y (en) * | 2008-12-18 | 2009-09-30 | 极品影视设备科技(深圳)有限公司 | Variable length-width ratio projection curtain |
| US20110132557A1 (en) * | 2009-12-07 | 2011-06-09 | Seiko Epson Corporation | Screen unit |
| CN108828890A (en) * | 2018-06-25 | 2018-11-16 | 合肥利元杰信息科技有限公司 | Projection device is used in a kind of teaching |
| CN209028408U (en) * | 2018-10-24 | 2019-06-25 | 广州粤韬电子科技有限公司 | A kind of folded projection curtain |
| CN210573168U (en) * | 2019-01-22 | 2020-05-19 | 宜春学院 | Be convenient for install literature news teaching and use projection screen |
| CN111022889A (en) * | 2020-01-06 | 2020-04-17 | 广州进观智能设备有限公司 | Can hide projection subassembly of accomodating convenient to maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112558403B (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2008223473A (en) | Sunshade roll blind for car | |
| KR101904191B1 (en) | Optic cable coiling apparatus | |
| CN210854540U (en) | Loading and unloading formula coiling mechanism is used in combined material production | |
| CN110270024B (en) | Automatic take-up safety belt | |
| CN112558403B (en) | Projector curtain with adjustable size | |
| JP2020160416A (en) | Easy-to-control selfie stick | |
| CN111022889B (en) | Can hide projection subassembly of accomodating convenient to maintenance | |
| CN209980008U (en) | Portable projection curtain device | |
| CN203476169U (en) | Rolled curtain opened from the top | |
| JP3212876B2 (en) | Reversing mechanism of moving body and turret reciprocating mechanism of sheet material cutting device using the reversing mechanism | |
| CN111994730A (en) | Automatic pushing equipment for storing and packaging cables | |
| CN110254834B (en) | Swift packing carton that packs | |
| CN111439146A (en) | Fill automatic cable laying and releasing device of electric pile | |
| CN206634802U (en) | A kind of coiler of foamed thin sheet | |
| CN218057725U (en) | Water band winding device for fire engineering | |
| CN217148112U (en) | Water hose coiling mechanism for fire safety | |
| CN110303104A (en) | One kind cutting out manipulator for different length electric wire automatically | |
| CN111320017B (en) | But cloth winder of fold is avoided to automatically regulated elasticity | |
| CN207419887U (en) | A kind of sunshade ceiling blind | |
| FR3096044A1 (en) | automatic rewinder | |
| CN220584537U (en) | Motor curtain pulling device with stroke limiting function | |
| CN111760867A (en) | Wooden bracelet washs maintenance device | |
| CN217421029U (en) | Roller shutter with good waterproof effect | |
| CN111399318A (en) | Automatic change photographic auxiliary device of filter | |
| CN217932398U (en) | Curved surface type projection curtain mechanism |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220222 Address after: 330700 No. 888, Mingzhu Avenue, Fengxin Industrial Park, Yichun City, Jiangxi Province Applicant after: Jiangxi fuyouming Technology Co.,Ltd. Address before: No.168, Lane 889, nanqichang Road, Songjiang District, Shanghai, 201600 Applicant before: Shanghai Zipian Digital Communication Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |