CN215340659U

CN215340659U - Projection device

Info

Publication number: CN215340659U
Application number: CN202121446213.9U
Authority: CN
Inventors: 贲月婷
Original assignee: Jiaole Education Technology Shanghai Co ltd
Current assignee: Jiaole Education Technology Shanghai Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-28
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to a projection device in the technical field of demonstration teaching equipment, which comprises a shell and a projector, wherein the shell is provided with a projection opening; the shell is provided with a projection hole, the projector is arranged in the shell, and the projector projects pictures outwards through the projection hole; the shell is internally provided with a plurality of projectors, and the projectors are in one-to-one correspondence with the projection holes. According to the projection device provided by the utility model, the plurality of groups of projectors are fixedly arranged in the shell, and different pictures can be respectively put in corresponding positions by the plurality of groups of projectors, so that the problem that a single projector cannot meet the requirement of putting in long-strip-shaped pictures is solved, the application scene of the projection device is improved, and in addition, compared with an implementation mode of only using part of long-strip-shaped projection areas of a single large-scale projection device, the cost can be effectively reduced.

Description

Projection device

Technical Field

The utility model relates to the technical field of demonstration teaching equipment, in particular to a projection device.

Background

The projector is a device capable of projecting images or videos onto a curtain, is widely applied to families, offices, schools and entertainment places, and has different types such as CRT, LCD, DLP and the like according to different working modes. Large-scale demonstration classroom is for satisfying the audience's in different position watching effect, often need install a plurality of independent projectors, not only occupies installation space, and is with high costs, and in case set for the back in the installation position of projector moreover, the mounted position of projector has carried out the location promptly, is difficult to adjust according to actual conditions.

In addition, the piano is a keyboard instrument derived from western and classical music, is generally used for performance such as solo, duet, accompaniment and the like, and is very convenient for composing and rehearsing music, but for a novice, the training of playing the musical instrument takes a long time and is expensive, while for a teacher, the traditional teaching mode is low in efficiency. In addition, in the prior art, since the keys of the piano have a width of a standard size and are elongated, it is difficult for the projector to display a high-definition projected virtual screen, and therefore, it is necessary to develop an intelligent teaching system.

The prior art searches and discovers that the Chinese patent publication No. CN111028555A discloses a piano playing teaching auxiliary device based on holographic technology, which comprises a device body, a piano and a control system, wherein the device body comprises a holographic picture playing module, an induction device module and a host, the piano comprises keys, a panel and a support, the holographic picture playing device is arranged above the panel, the holographic picture playing module comprises a micro projector, a display screen, refraction glass and pictures, the display screen is flatly paved above the holographic picture playing module, the micro projector is arranged at the edge below the display screen, the refraction glass and the pictures are both arranged between the panel and the display screen, the induction module comprises a laser inductor, the laser inductor is arranged in the micro projector, the host is arranged at one side of the support, and the micro projector and the display screen are both connected with the host. The patented technology suffers from the problems associated with the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the present invention provides a projection apparatus.

The utility model provides a projection device, which comprises a shell and a projector;

the shell is provided with a projection hole, the projector is arranged in the shell, and the projector projects pictures outwards through the projection hole;

the shell is internally provided with a plurality of projectors, and the projectors are in one-to-one correspondence with the projection holes.

In some embodiments, the number of projectors is 2-3 groups.

In some embodiments, the housing is any one of rectangular, trapezoidal, prismatic, and racetrack shaped.

In some embodiments, the housing includes a first housing and a second housing, the second housing being axially movable relative to the first housing, the first housing and the second housing each having the projector mounted therein.

In some embodiments, the number of the second housings is two, and the two sets of the second housings are symmetrically arranged at two ends of the first housing.

In some embodiments, the first housing and the second housing are axially moved by a moving member, and the moving member is a sliding plate.

In some embodiments, the second housing is connected to the sliding plate by a rotating buckle, and the second housing is rotatable relative to the sliding plate.

In some embodiments, the images projected by the projectors are divided images, and the images projected by the projectors are spliced into a whole image.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the projection device provided by the utility model, the plurality of groups of projectors are fixedly arranged in the shell, and different pictures can be respectively put in corresponding positions by the plurality of groups of projectors, so that the problem that a single projector cannot meet the requirement of putting in long-strip-shaped pictures is solved, the application scene of the projection device is improved, and in addition, compared with an implementation mode of only using part of long-strip-shaped projection areas of a single large-scale projection device, the cost can be effectively reduced.

2. According to the utility model, through the optimized design of the shell structure, the shell structure is designed into a split structure and has the functions of stretching and rotating, so that the distance and the angle between projectors can be adjusted, and further, the projected pictures can be adjusted in the longitudinal direction and the transverse direction, so that the matched splicing of different pictures can be realized.

3. The utility model solves the problem that the long strip-shaped picture can not be released by one projector by dividing the pictures projected by the plurality of projectors arranged on the shell into the split pictures and splicing the pictures projected by the plurality of projectors into the complete picture, and is particularly suitable for releasing the picture of the piano keyboard.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an overall structural schematic of the assembly of the present invention;

FIG. 3 is a schematic view of the expanded structure of the present invention;

FIG. 4 is a schematic view of a second slightly tilted housing according to the present invention;

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Example 1

As shown in fig. 1 to 4, the present invention provides a projection apparatus, as shown in fig. 1 to 4, including a housing 1 and a projector 2 installed in the housing 1, wherein a projection hole 10 is formed in the housing 1, and the projector 2 projects a projected image to a preset position outside the housing 1 through the projection hole 10. The shell 1 is internally provided with a plurality of groups of projectors 2, meanwhile, the shell 1 is provided with a plurality of groups of projection holes 10, and each group of projectors 2 corresponds to one projection hole 10. The number of the projectors 2 installed in the shell 1 is preferably 2-3 groups, each group of projectors 2 can receive and put in different pictures through the controller, the different pictures can be formed by dividing the same complete picture, and then the different pictures are put in corresponding positions through the plurality of groups of projectors 2 and then spliced into a whole picture. For example, the edge of the adjacent pictures can be aligned or overlapped to a certain extent through manual or automatic adjustment, so that a complete picture can be formed, and the method is particularly suitable for putting in a piano keyboard picture. The shape of the housing 1 may be any one of a rectangle, a trapezoid, a prism and a runway, and it is preferably an elongated cavity structure to facilitate the installation and placement of the projector 2.

According to the projection device provided by the utility model, the plurality of groups of projectors are fixedly arranged in the shell, and different pictures can be respectively put in corresponding positions by the plurality of groups of projectors, so that the problem that a single projector cannot meet the requirement of putting in long-strip-shaped pictures is solved, and the application scene of the projection device is improved. In addition, compared with the realization mode of only using a part of long-strip-shaped projection area of a single large-scale projection device, the cost can be effectively reduced.

Example 2

This embodiment 2 forms on embodiment 1's basis, through the optimal design to the shell structure, designs the shell structure for the components of a whole that can function independently structure and have flexible and rotation function for interval and angle between the projecting apparatus are adjustable, and then make between its projection picture, adjustable in two directions of moving about freely and quickly, in order to realize the identical concatenation of different pictures.

As shown in fig. 1 to 4, the housing 1 includes a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 each mount the projector 2. The first housing 11 and the second housing 12 form the housing 1 in a movable connection, i.e. the second housing 12 moves away from or close to the first housing 11 in an axial direction relative to the first housing 11. The axial movement of the first housing 11 and the second housing 12 is effected by means of a moving member 3, the moving member 3 of which is preferably a slide plate. The one end of slide sliding plate and the tip of first casing 11 can adopt the mode sliding connection that cup joints, and the accessible bolt or the joint structural connection of being connected of slide sliding plate and second casing 12 is fixed simultaneously, carries second casing 12 through the slip of slide sliding plate for first casing 11 promptly and keeps away from or be close to first casing 11. Preferably, the second housings 12 are two sets, and the two sets of second housings 12 are respectively connected to two ends of the second housing 11, so that the projection images are mutually transversely adjustable.

Furthermore, when the moving member 3 is rotatably connected to the second housing 12 through the rotating buckle 4, that is, when the sliding plate slides relative to the first housing 11 to drive the second housing 12 to reach a predetermined position, the inclination angle of the second housing 12 can be properly adjusted through the action of the rotating buckle 4, so that the projection images can be longitudinally adjusted.

In the description of the present application, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A projection apparatus, characterized by comprising a housing (1) and a projector (2);

the shell (1) is provided with a projection hole (10), the projector (2) is installed in the shell (1), and the projector (2) projects pictures outwards through the projection hole (10);

the projector-type projector is characterized in that a plurality of projectors (2) are installed in the shell (1), and the projectors (2) correspond to the projection holes (10) one to one.

2. A projection device according to claim 1, characterized in that the number of projectors (2) is 2-3 groups.

3. The projection device according to claim 1, wherein the housing (1) is any one of rectangular, trapezoidal, prismatic, racetrack shaped.

4. A projection device according to claim 1, wherein the housing (1) comprises a first housing (11) and a second housing (12), the second housing (12) being axially movable relative to the first housing (11), the projector (2) being mounted in both the first housing (11) and the second housing (12).

5. The projection device according to claim 4, wherein the second housings (12) are provided in two sets, and the two sets of second housings (12) are symmetrically disposed at two ends of the first housing (11).

6. The projection device according to claim 5, wherein the first housing (11) and the second housing (12) are axially moved by a moving member (3), the moving member (3) being a sliding plate.

7. A projection device according to claim 6, wherein the second housing (12) is connected to the slide by a rotation buckle (4), the second housing (12) being rotatable relative to the slide.

8. The projection apparatus according to any of claims 1-7, wherein the projected picture by said projector (2) is a split picture, and the pictures projected by a plurality of said projectors (2) are joined into a whole picture.