CN219202117U

CN219202117U - Film changing system for continuous and cyclic projection

Info

Publication number: CN219202117U
Application number: CN202320026744.5U
Authority: CN
Inventors: 陈侃; 邓性斌
Original assignee: Shenzhen Hongchuangjian Optoelectronic Technology Co ltd
Current assignee: Shenzhen Hongchuangjian Optoelectronic Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-16
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to a film changing system for continuous and cyclic projection, which comprises a film changing device and a driving motor, wherein the film changing device and the driving motor are arranged in projection equipment; the film changing device further comprises a film plating piece which is plated with patterns and can transmit light, the film plating piece is in an annular shape in an end-to-end connection mode, the bottom edge of the annular film plating piece is detachably connected to the rotating chassis, and a cavity used for placing a light source assembly with a fixed light emitting direction is arranged in the annular film plating piece, so that the light source assembly irradiates the film plating piece. The light-permeable film-coated sheets are connected end to form a circularly continuous projection material, and the rotary chassis is utilized to drive the annular film-coated sheets to rotate; then, a light source component for fixing the irradiation direction is utilized to throw in the pattern on the plating film; the film plating sheet of the film changer continuously rotates in one direction, so that the pictures reflected by the projection equipment are always forward played, and the reverse-played pictures cannot appear, thereby being applicable to continuous long pictures with requirements on the playing direction.

Description

Film changing system for continuous and cyclic projection

Technical Field

The utility model relates to the technical field of projection, in particular to a film changing system for continuous and cyclic projection.

Background

As a common remote projection device, the outdoor projector is commonly used for commercial road, market popularization, advertisement propaganda and the like, and film patterns in the projector are put on various background plates such as large building surfaces and the like, so that the combination of light and patterns is realized.

Because the previous projector can only project a pattern, the projection effect of each projector is single, so people set a film changer capable of switching patterns inside the projector, such as a director projector disclosed in Chinese patent No. CN204270634U, the film changer is internally provided with a film changer which comprises a motor and two reels, a film is sleeved on the left reel, the other end of the film is connected to the right reel, the motor controls the two reels to rotate, the film is conveyed from left to right, the film content is rolled and played, and the film can be played back after forward playing is finished.

Although the scheme realizes multi-picture switching by winding and unwinding films through the reel, the forward play and the reverse play exist in the playing process, and the reverse play can generate reverse play pictures, so that when the patterns on the films are continuous long pictures, and the content presentation of the continuous long pictures has requirements on the playing direction, the existing film changer is not applicable.

Disclosure of Invention

Because the existing film changer adopts a mode of winding and unwinding films by a reel, the projection process has forward play and reverse play, and the utility model provides a film changer system for continuous and cyclic projection in order to solve the problem that the existing film changer is not suitable for the projection content with the requirement on the play direction.

The technical scheme of the utility model is as follows:

a film changing system for continuous and cyclic projection comprises a film changing device and a driving motor, wherein the film changing device is arranged in projection equipment and is characterized by comprising a rotating chassis, and the driving motor is connected with the rotating chassis; the film changing device further comprises a film plating piece which is plated with patterns and can transmit light, the film plating piece is annular in an end-to-end connection mode, the bottom edge of the annular film plating piece is detachably connected to the rotating chassis, and a cavity for placing a light source assembly with a fixed light emitting direction is arranged in the annular film plating piece, so that the light source assembly irradiates the film plating piece.

The utility model according to the scheme is characterized in that the rotating chassis is provided with a plurality of film plating sheet supports, the top ends of the film plating sheet supports are provided with plug-in ports, and the bottom edges of the annular film plating sheets are inserted into the plug-in ports.

Preferably, four film plating sheet brackets are uniformly arranged on the rotating chassis.

The utility model according to the above scheme is characterized in that the center of the rotating chassis is connected with the output shaft of the driving motor through a transmission piece.

Further, the transmission piece comprises a synchronous belt, a first synchronous wheel, a second synchronous wheel and a central rotating shaft, wherein the first synchronous wheel is arranged on an output shaft of the driving motor, the central rotating shaft is fixed on the central lower surface of the rotating chassis, the tail end of a shaft rod of the central rotating shaft is provided with the second synchronous wheel, and the second synchronous wheel is connected with the first synchronous wheel through the synchronous belt.

The utility model according to the above-mentioned solution is characterized in that the rotating chassis is provided with a cross bar, and the drive motor is connected to the center of the cross bar.

The utility model according to the above-mentioned aspect is characterized in that the drive motor is mounted outside the chassis base plate of the projection apparatus via a motor support.

Further, the motor support piece comprises a first fixing plate and a second fixing plate, wherein the second fixing plate is provided with round hollowed holes, and screw holes for installing the driving motor are formed in four corners of the round hollowed holes; the first fixing plate is provided with a rectangular hollow hole, and the rectangular hollow hole is used for limiting the driving motor.

Furthermore, a plurality of small holes are formed in two sides of the rectangular hollowed-out hole of the first fixing plate, strip-shaped holes are formed in two sides of the second fixing plate, and the first fixing plate is detachably connected with the second fixing plate through the small holes and the strip-shaped holes.

The utility model according to the above scheme is characterized in that the top of the light source assembly is fixedly arranged on the top plate of the casing of the projection device and is placed in the cavity of the annular plating film.

The utility model according to the scheme has the beneficial effects that:

the utility model forms a circularly continuous projection material by connecting the light-permeable film plating sheets with patterns end to end, and the projection material is connected with a rotatable rotating chassis to realize the autorotation of the annular film plating sheets; then a light source component is put in the ring of the annular plating film, and the pattern on the plating film is put out;

the film plating sheet of the film changer continuously rotates in one direction, so that the pictures reflected by the projection equipment are always forward played, and the reverse-played pictures cannot appear, thereby being applicable to continuous long pictures with requirements on the playing direction.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is an exploded view of the power source portion of the present utility model;

fig. 4 is a perspective schematic view of the present utility model in use.

In the figure, 1, a film plating sheet;

2. rotating the chassis; 21. a film plating sheet bracket; 211. an interface; 22. a crisscross bar;

3. a driving motor; 31. a first fixing plate; 311. a small hole; 32. a second fixing plate; 321. a bar-shaped hole;

4. a transmission member; 41. a synchronous belt; 42. a first synchronizing wheel; 43. a second synchronizing wheel; 44. a central spindle;

5. a light source assembly;

6. a projection device; 61. and a top plate of the shell.

Detailed Description

For a better understanding of the objects, technical solutions and technical effects of the present utility model, the present utility model will be further explained below with reference to the drawings and examples. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present.

The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a number" is two or more, unless specifically defined otherwise.

As shown in fig. 1, a film changing system for continuous and cyclic projection comprises a film changing device and a driving motor 3, wherein the film changing device is arranged in a projection device 6 and comprises a rotating chassis 2, and the driving motor 3 is connected with the rotating chassis 2; the film changing device further comprises a film plating piece 1 which is plated with patterns and can transmit light, the film plating piece 1 is in an annular shape in an end-to-end connection mode, the bottom edge of the annular film plating piece 1 is detachably connected to the rotating chassis 2, and a cavity for placing a light source assembly 5 with a fixed light emitting direction is arranged in the annular film plating piece 1, so that the light source assembly 5 irradiates the film plating piece 1.

The working principle of the utility model is as follows: the annular coating film 1 rotates around the central axis of the annular coating film 1 by utilizing the rotating chassis 2, the light source assembly 5 irradiates the coating film 1 towards a fixed direction, and patterns on the coating film 1 are put out; and along with the continuous rotation of the film coating sheet 1 in a circulation in one direction, the released picture is always played forward, no reverse picture exists, and the content with the requirement on the playing direction can be correctly expressed.

Therefore, the utility model forms circularly continuous projection materials by connecting the transparent coating films 1 with patterns end to end, and drives the annular projection materials to rotate around the central axis of the annular projection materials; after being irradiated by the light source component 5 with fixed irradiation direction in the ring, the pattern picture on the plating film 1 is put out. In addition, the film coating sheet 1 of the film changer continuously rotates in one direction, so that the picture projected by the projection equipment 6 is always forward played, and the reverse picture cannot appear.

The continuous long chart refers to that the patterns on the whole film plating sheet 1 express the same scene; the playing direction has a requirement, which means that the correct meaning can be expressed only by forward playing, and the content presented does not accord with common sense or logic when the playing is performed in the reverse direction.

As shown in fig. 2, in the present utility model, the rotary chassis 2 is provided with a plurality of film plating holders 21, the top ends of the film plating holders 21 are provided with insertion ports 211, and the bottom edges of the annular film plating holders 1 are inserted into the insertion ports 211. When the annular plating film 1 is mounted, the bottom end edge of the plating film 1 is inserted into the insertion port 211. In a specific embodiment, four film plating sheet brackets 21 are arranged on the rotary chassis 2, the four film plating sheet brackets 21 are distributed in a cross shape and located in four directions, and the four film plating sheet brackets 21 can ensure that a small number of film plating sheet brackets 21 are used on the premise of being firmly fixed on the film plating sheet 1, so that the film plating sheet 1 is convenient to align and install.

In the present utility model, as shown in fig. 3, the center of the rotating chassis 2 is connected to the output shaft of the drive motor 3 through a transmission 4. The transmission member 4 comprises a synchronous belt 41, a first synchronous wheel 42, a second synchronous wheel 43 and a central rotating shaft 44, wherein the first synchronous wheel 42 is arranged on an output shaft of the driving motor 3, the central rotating shaft 44 is fixed on the central lower surface of the rotating chassis 2, the tail end of a shaft lever of the central rotating shaft is provided with the second synchronous wheel 43, and the second synchronous wheel 43 is connected with the first synchronous wheel 42 through the synchronous belt 41. The driving motor 3 operates, the output shaft of the driving motor drives the first synchronous wheel 42 to rotate, the first synchronous wheel 42 drives the second synchronous wheel 43 to rotate through the synchronous belt 41, the second synchronous wheel 43 drives the central rotating shaft 44 on the lower surface of the rotating chassis 2 to rotate, and finally the rotating chassis 2 rotates to realize the autorotation of the annular plating film sheet 1.

In the utility model, the rotating chassis 2 is provided with the cross rod 22, which is beneficial to reducing the weight of the rotating chassis 2; the driving motor 3 is connected to the center of the cross rod 22, so that the rotating chassis rotates more stably without shaking.

In the present utility model, the driving motor 3 is installed outside the chassis base plate of the projection apparatus 6 through the motor support, and it is possible to rapidly check whether a problem occurs in the driving source when the projection apparatus 6 malfunctions.

In an alternative embodiment, the motor support comprises a first fixing plate 31 and a second fixing plate 32, the second fixing plate 32 is provided with a circular hollow hole, and four corners of the circular hollow hole are provided with screw holes for installing the driving motor 3; the first fixing plate 31 is provided with a rectangular hollow hole for limiting the driving motor 3.

The both sides of the rectangular hollowed-out hole of the first fixed plate 31 are provided with a plurality of small holes 311, the both sides of the second fixed plate 32 are provided with strip-shaped holes 321, and the first fixed plate 31 and the second fixed plate 32 are detachably connected through the small holes 311 and the strip-shaped holes 321. By adjusting the different positions of the strip-shaped holes 321 on the small holes 311, the position of the second fixing plate 32 on the first fixing plate 31 is adjusted, so that the position of the driving motor 3 on the first fixing plate 31 is adjusted.

As shown in fig. 4, in the present utility model, the top of the light source module 5 is fixedly installed on the top plate 61 of the housing of the projection apparatus 6 and is placed in the chamber of the annular plating film sheet 1. The light source assembly 5 is fixed by the top plate of the casing of the projection device 6, and the light source assembly 5 is placed in the cavity inside the plating film 1 without contacting the plating film 1 and the rotating chassis 2. Therefore, the static light source component 5 is not affected when the film coating piece 1 rotates, so that the light emitting direction of the light source component 5 is kept unchanged all the time, the film coating piece 1 moves relative to the light source component 5, and the cyclic playing of a projection picture is realized.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A film changing system for continuous and cyclic projection comprises a film changing device and a driving motor, wherein the film changing device is arranged in projection equipment and is characterized by comprising a rotating chassis, and the driving motor is connected with the rotating chassis; the film changing device further comprises a film plating piece which is plated with patterns and can transmit light, the film plating piece is annular in an end-to-end connection mode, the bottom edge of the annular film plating piece is detachably connected to the rotating chassis, and a cavity for placing a light source assembly with a fixed light emitting direction is arranged in the annular film plating piece, so that the light source assembly irradiates the film plating piece.

2. The film changing system for continuous and cyclic projection of claim 1, wherein the rotating chassis is provided with a plurality of film coating film supports, the top ends of the film coating film supports are provided with plug-in ports, and the bottom edges of the annular film coating films are inserted into the plug-in ports.

3. The film changing system for continuous and cyclic projection of claim 2, wherein four film coating film brackets are uniformly arranged on the rotary chassis.

4. A continuous loop projection changer according to claim 1, wherein the center of the rotating chassis is connected to the output shaft of the drive motor via a transmission.

5. The disc changer system of claim 4, wherein the driving member comprises a timing belt, a first timing wheel, a second timing wheel, and a central rotating shaft, the first timing wheel is disposed on the output shaft of the driving motor, the central rotating shaft is fixed on the central lower surface of the rotating chassis, the second timing wheel is disposed at the end of the shaft, and the second timing wheel is connected with the first timing wheel through the timing belt.

6. A continuous loop projection changer according to claim 1, wherein the rotating chassis is provided with a cross bar, and the drive motor is connected to the center of the cross bar.

7. The film changer system of claim 1, wherein the driving motor is mounted outside the chassis base of the projection device by a motor support.

8. The continuous loop projection changer of claim 7, wherein said motor support member comprises a first fixing plate and a second fixing plate, said second fixing plate is provided with circular hollowed-out holes, four corners of which are provided with screw holes for mounting said driving motor; the first fixing plate is provided with a rectangular hollow hole, and the rectangular hollow hole is used for limiting the driving motor.

9. The film changing system for continuous and cyclic projection of claim 8, wherein a plurality of small holes are formed on two sides of the rectangular hollowed-out hole of the first fixing plate, strip-shaped holes are formed on two sides of the second fixing plate, and the first fixing plate and the second fixing plate are detachably connected through the small holes and the strip-shaped holes.

10. The film changer system of claim 1, wherein the top of the light source assembly is fixedly mounted to a top plate of a housing of a projection device and is positioned in a chamber of the annular coated film sheet.