CN219552807U

CN219552807U - Film changing system of projection equipment

Info

Publication number: CN219552807U
Application number: CN202320026743.0U
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: 2023-08-18
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to a film changing system of projection equipment, which comprises a film changing device and a driving motor, wherein the film changing device and the driving motor are arranged in the projection equipment; the side wall of the rotating ring is provided with a plurality of coating sheets coated with patterns, and the rotating ring is also provided with a cavity for placing the light source component with fixed light emitting direction, so that the light source component irradiates the coating sheets on the rotating ring. The film changing system realizes the function of switching projection patterns through the rotation of the rotating ring; according to the utility model, only one driving motor is needed, so that the manufacturing cost is reduced, and the installation difficulty is reduced; each film coating piece on the rotating ring is mutually noninterfere, so that the problem that the projection image quality is damaged due to the lamination between films is solved.

Description

Film changing system of projection equipment

Technical Field

The utility model relates to the technical field of projection, in particular to a film changing system of projection equipment.

Background

The projection lamp is a common high-power long-distance projection device and is used for projecting patterns on films onto the surfaces of objects, such as large-scale building surfaces or other background walls, so that the combination of light and patterns is realized, and the light decoration effect is achieved.

Because the prior projection lamp can only project one pattern, the projection effect of each projection lamp is single, and for this purpose, a film changer is arranged in the projection equipment for switching different patterns.

For example, chinese patent No. CN204270634U discloses a director projector, in which a film changer is provided, the film changer includes a spool for winding and unwinding a film and a motor connected to the spool, the left spool is wound with the film, and the other end of the film is connected to the right spool, and the film is continuously transferred from left to right along with the rotation of the motor.

Therefore, each rotating shaft of the projector needs to be provided with one motor, so that the cost is high, the rotating speeds of the two motors need to be strictly consistent, and the matching degree requirement is high. In addition, the film is a strip film, and is rolled on the rotating shafts at two sides, so that the surfaces of all layers of the film roll are attached together, adhesion or friction is easy to occur between the films, the films are severely worn, and finally, the projected picture is blurred.

Disclosure of Invention

In order to solve the problems of high cost and high matching degree requirement caused by the fact that two motors of the existing film changing device respectively control two reel structures, and to overcome the risk of blurring of a projection picture caused by bonding or friction of films on reels, the utility model provides a film changing system of projection equipment.

The technical scheme of the utility model is as follows:

the film changing system of the projection equipment comprises a film changing device and a driving motor, wherein the film changing device is arranged in the projection equipment and comprises a rotating ring and a rotating chassis, the rotating ring is arranged on the rotating chassis, and the rotating chassis is connected with the driving motor so as to drive the rotating ring to rotate; the rotating ring is formed by splicing a plurality of picture frames, the picture frames are used for mounting the coating films which are coated with patterns and can transmit light, and the rotating ring is provided with a cavity for placing the light source assembly with fixed light emitting direction, so that the light source assembly irradiates the coating films.

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 rotating ring.

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 scheme is characterized in that the rotating chassis is annular, the rotating chassis is provided with a cross rod, and the center of the cross rod is connected with a power source.

The utility model according to the scheme is characterized in that the driving motor is arranged on a chassis base plate of the projection equipment through a motor support piece, the motor support piece comprises a first fixing plate and a second fixing plate, the second fixing plate is provided with round hollowed holes, and four corners of the round hollowed holes are provided with screw holes for installing the driving motor; the first fixed plate is provided with a rectangular hollow hole, a plurality of small holes are formed in two sides of the rectangular hollow hole, strip-shaped holes are formed in two sides of the second fixed plate, and the first fixed plate is detachably connected with the second fixed plate through the small holes and the strip-shaped holes.

The utility model according to the scheme is characterized in that the rotating ring further comprises a fixed frame positioned at the top, the top end of the painting frame is connected with the fixed frame, and the bottom end of the painting frame is connected with the rotating chassis.

According to the scheme, the utility model is characterized in that the middle part of the painting frame is provided with a light-transmitting window, the bottom corner edge of the light-transmitting window is provided with an L-shaped painting clip, and the painting clip is used for placing the coating film.

Furthermore, the two sides of the front side and the back side of the painting frame are respectively provided with the painting clips, and the painting clips on the two sides are positioned at the same bottom corner of the light-transmitting window.

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

the utility model utilizes the structure of the rotating ring, a plurality of coating film sheets with patterns are arranged on the side wall of the rotating ring, and a light source component is arranged in an annular cavity of the rotating ring, so that the function of switching projection patterns is realized through the rotation of the rotating ring;

therefore, the utility model can realize the rotation of the film changer around the central shaft thereof by only one driving motor, thereby reducing the manufacturing cost, avoiding the problem of matching the two motors and reducing the installation difficulty;

the film plating pieces on the rotating ring are not interfered with each other, so that the problem that the projection image quality is damaged due to the lamination between the films is solved.

Drawings

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

FIG. 2 is a schematic view of another view of the present utility model;

FIG. 3 is an exploded view of the structure of the present utility model;

FIG. 4 is an exploded view of the drive motor and the driving member of the present utility model;

fig. 5 is a perspective schematic view of the present utility model in use.

In the figure, 1, a rotating ring; 11. a painting frame; 111. a light-transmitting window; 112. a drawing clip; 12. a fixed frame;

2. rotating the chassis;

3. a driving motor; 31. a first fixing plate; 311. rectangular hollowed-out opening; 312. a small hole; 32. a second fixing plate; 321. a circular hollow hole; 322. 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 photographing apparatus; 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 and 2, a film changing system of a projection device comprises a film changing device and a driving motor 3, wherein the film changing device and the driving motor are arranged in the projection device, the film changing device comprises a rotating ring 1 and a rotating chassis 2, the rotating ring 1 is arranged on the rotating chassis 2, and the rotating chassis 2 is connected with the driving motor 3 to drive the rotating ring 1 to rotate. The rotating ring 1 is formed by splicing a plurality of picture frames 11, the picture frames 11 are used for mounting coating films which are plated with patterns and can transmit light, and the rotating ring 1 is provided with a cavity for placing the light source assembly 5 with fixed light emitting direction, so that the light source assembly 5 irradiates the coating films.

The working principle of the utility model is as follows: the rotary ring 1 rotates around the central shaft of the rotary ring, and the light source assembly 5 irradiates the position of the film plating film on the rotary ring 1 towards a fixed direction; in the rotating process of the rotating ring 1, different coating films alternately pass through emergent light of the light source assembly 5, and after the emergent light irradiates the coating films, different patterns are put on background plates such as building surfaces or wall surfaces.

Therefore, the utility model realizes the function of switching projection patterns by the autorotation of the rotating ring 1 by arranging a plurality of film plating sheets with patterns on the side wall of the rotating ring 1 and using the inner ring cavity of the rotating ring 1 for placing the light source component 5. In addition, the utility model can realize the rotation of the rotating ring 1 of the film changer around the central shaft thereof by only one driving motor 3, thereby reducing the manufacturing cost, avoiding the problem of matching the two motors and reducing the installation difficulty.

Compared with the prior art, the film plating pieces on the rotating ring 1 are not interfered with each other, so that the phenomenon that patterns between the film winding layers on the reel are adhered to each other to adhere or rub is avoided, and the phenomenon that the film is seriously worn and the projection image quality is damaged is avoided.

In the utility model, the rotating ring 1 further comprises a fixed frame 12 positioned at the top, the top end of the picture frame 11 is connected with the fixed frame 12, and the bottom end of the picture frame 11 is connected with the rotating chassis 2. The fixed frame 12 links together all frame 11, promotes the stability of swivel becket 1 overall structure, and when avoiding swivel becket 1 to rotate, frame 11 produces to rock, has influenced the effect of projection pattern.

As shown in fig. 3, a light-transmitting window 111 is arranged in the middle of the painting frame 11, and an L-shaped painting clip 112 is arranged at the bottom corner edge of the light-transmitting window 111, wherein the painting clip 112 is used for placing a plating film. When in use, the film coating piece is inserted into the L-shaped drawing clamp 112 from one side, and the pattern of the film coating piece is just aligned with the light-transmitting window 111.

In a preferred embodiment, the front and back sides of the frame 11 are provided with the picture clips 112, and the picture clips 112 on both sides are located at the same bottom corner of the light-transmitting window 111. By the scheme, one pattern can be respectively placed on the front side and the back side of the picture frame 11, and the contents on the two patterns have relevance, for example, one pattern is a background pattern, and the other pattern is a character or other individual patterns; according to the scheme, projection synthesis can be carried out on two patterns, so that the patterns are richer in display content and more hierarchical in display effect.

As shown in fig. 5, in the present utility model, the top of the light source module 5 is fixedly installed at the top plate 61 of the cabinet of the projection apparatus and is placed in the chamber of the rotating ring 1. It can be seen that the light source assembly 5 is secured by the housing top plate 61 of the projection device, and that the light source assembly 5 is placed into the ring cavity of the rotating ring 1 without touching the rotating ring 1 and the rotating chassis 2. Therefore, the rotating ring 1 does not influence the stationary light source assembly 5 when rotating, so as to ensure that the light emitting direction of the light source assembly 5 is always unchanged, and finally, different light sources are switched to irradiate different coating films in a rotating mode of the rotating ring 1.

In the present utility model, as shown in fig. 4, 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. When the driving motor 3 runs, the output shaft drives the first synchronizing wheel 42 to rotate, and the second synchronizing wheel 43 is driven to rotate by the synchronous belt 41, and the second synchronizing wheel 43 is connected with the central rotating shaft 44 on the lower surface of the rotating chassis 2, so that the rotating chassis 2 finally obtains rotating power.

In the utility model, the rotary chassis 2 is annular, the rotary chassis 2 is provided with a cross rod, and the center of the cross rod is connected with a power source to realize the rotation of the rotary chassis 2. The structure of the cross rod reduces the weight of the rotary chassis 2, and can reduce the power consumption required for driving the rotary chassis to rotate; while keeping the center of gravity of the rotating chassis 2 at the center, the rotation is stable and does not shake.

As shown in fig. 4, in the present utility model, a driving motor 3 is mounted on a chassis base plate of a projection apparatus through a motor support, the motor support includes a first fixing plate 31 and a second fixing plate 32, the second fixing plate 32 is provided with a circular hollowed hole 321, four corners of the circular hollowed hole 321 are provided with screw holes for mounting the driving motor 3; the first fixing plate 31 is provided with a rectangular hollow hole which is used for limiting the driving motor 3; the two sides of the rectangular hollowed-out hole are provided with a plurality of small holes 312, the two sides of the second fixing plate 32 are provided with strip-shaped holes 322, and the first fixing plate 31 and the second fixing plate 32 are detachably connected through the small holes 312 and the strip-shaped holes 322. In operation, two small holes 312 are selected, and bolts are used to pass through the bar-shaped holes 322 and the small holes 312 from top to bottom, and nuts are screwed onto the ends of the bolts to connect the first fixing plate 31 and the second fixing plate 32.

By adjusting the different positions of the strip-shaped holes 322 on the small holes 312, 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.

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. The film changing system of the projection equipment comprises a film changing device and a driving motor, wherein the film changing device is arranged in the projection equipment and is characterized by comprising a rotating ring and a rotating chassis, the rotating ring is arranged on the rotating chassis, and the rotating chassis is connected with the driving motor so as to drive the rotating ring to rotate;

the rotating ring is formed by splicing a plurality of picture frames, the picture frames are used for mounting the coating films which are coated with patterns and can transmit light, and the rotating ring is provided with a cavity for placing the light source assembly with fixed light emitting direction, so that the light source assembly irradiates the coating films.

2. The film changing system of a projection device of claim 1, wherein the top of the light source assembly is fixedly mounted on a top plate of a housing of the projection device and is disposed in the cavity of the rotating ring.

3. A film changing system of a projection device according to claim 1, wherein the center of the rotating chassis is connected to the output shaft of the driving motor via a transmission member.

4. A film changing system of a projection device according to claim 3, wherein the transmission member comprises a synchronous belt, a first synchronous wheel, a second synchronous wheel and a central rotating shaft, the first synchronous wheel is arranged on an output shaft of the driving motor, the central rotating shaft is fixed on a central lower surface of the rotating chassis, the second synchronous wheel is arranged at the tail end of the shaft rod, and the second synchronous wheel is connected with the first synchronous wheel through the synchronous belt.

5. A film changing system of a projection device according to claim 1, wherein the rotating chassis is ring-shaped, the rotating chassis is provided with a cross bar, and the center of the cross bar is connected with a power source.

6. The film changing system of the projection equipment according to claim 1, wherein the driving motor is arranged on a chassis base plate of the projection equipment through a motor supporting piece, the motor supporting piece comprises a first fixing plate and a second fixing plate, the second fixing plate is provided with a round hollowed-out hole, and four corners of the round hollowed-out hole are provided with screw holes for installing the 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.

7. The film changing system of the projection device according to claim 6, wherein a plurality of small holes are formed on two sides of the rectangular hollow hole of the first fixing plate, a strip-shaped hole is 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 hole.

8. The film changing system of a projection device of claim 1, wherein the rotating ring further comprises a fixed frame at the top, the top end of the picture frame is connected to the fixed frame, and the bottom end of the picture frame is connected to the rotating chassis.

9. The film changing system of the projection device according to claim 1, wherein a light-transmitting window is arranged in the middle of the picture frame, an L-shaped film holder is arranged at the bottom corner edge of the light-transmitting window, and the film holder is used for placing the film coating film.

10. The film changing system of a projection device of claim 9, wherein the film clips are disposed on both sides of the front and back sides of the frame, and the film clips on both sides are disposed at the same bottom corner of the light-transmitting window.