CN212389964U

CN212389964U - Make things convenient for portable multimedia projection device of projection angle modulation

Info

Publication number: CN212389964U
Application number: CN202020927745.3U
Authority: CN
Inventors: 张方坤; 宋尚玲
Original assignee: Jining Polytechnic
Current assignee: Jining Polytechnic
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-01-22
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a make things convenient for portable multimedia projection device of projection angle regulation, including box and projector body, the inside lower extreme of box rotates and is connected with the two-way screw rod, and the equal fixedly connected with runner in both ends about the two-way screw rod, the surface threaded connection of two-way screw rod has the lower slider, the upper end hinged joint of alignment jig has the top shoe, the outer fixed surface of pivot is connected with the gear, the upper end inner wall fixedly connected with rack of box, the front end downside fixedly connected with closing plate of apron, the inside through connection of kelly has the gag lever post, the light trap has been seted up to the front surface upside of box. This make things convenient for portable multimedia projection device of projection angle modulation, the convenience is adjusted multimedia projector's height and angle to and the convenience is accomodate the multimedia projector and is deposited, also conveniently adjusts the interval size of multimedia projector and wall simultaneously.

Description

Make things convenient for portable multimedia projection device of projection angle modulation

Technical Field

The utility model relates to a relevant technical field of multi-media specifically is a make things convenient for portable multimedia projection device of projection angle modulation.

Background

At present, the multimedia projector is mostly fixedly installed or movably used, and the fixed installation generally fixes the equipment on the wall of a classroom and can be used by one-time debugging; the mobile installation needs debugging every time when in use, and due to the fact that in the using process, when the multimedia projector needs to incline at a certain angle, a proper effect is achieved.

However, when the general mobile multimedia projector is used, the height and the angle of the multimedia projector are inconvenient to adjust, the multimedia projector is inconvenient to store and store, and the space size between the multimedia projector and the wall surface is also inconvenient to adjust.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a make things convenient for portable multimedia projector of projection angle regulation to solve general portable multimedia projector who provides in the above-mentioned background art, when using, inconvenient height and the angle to multimedia projector adjust, and inconvenient accomodate the storage to multimedia projector, also inconvenient the problem of adjusting the interval size of multimedia projector and wall simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a portable multimedia projection device convenient for projection angle adjustment comprises a box body and a projector body, wherein the lower end inside the box body is rotatably connected with a bidirectional screw, the left end and the right end of the bidirectional screw are fixedly connected with rotating wheels, the outer surface of the bidirectional screw is in threaded connection with a lower sliding block, the upper end of the lower sliding block is in hinged connection with an adjusting frame, the upper end of the adjusting frame is in hinged connection with an upper sliding block, the upper sliding block is in sliding connection on an adjusting plate, the upper end of the adjusting plate is fixedly connected with a support, the upper end of the support is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a gear, a projector body is fixedly arranged between single bodies of the gear, the inner wall of the upper end of the box body is fixedly connected with a rack, a cover plate is arranged above the box body, a sealing plate is, the inside through connection of kelly has the gag lever post, and the surface cover of gag lever post is equipped with the spring to the lower extreme fixedly connected with fixture block of kelly, the light trap has been seted up to the front surface upside of box, and the draw-in groove has all been seted up to the upper end left and right sides inner wall of box.

Preferably, the lower slider forms a sliding structure on the inner wall of the box body through the rotating wheel, and the lower surface of the rotating wheel is lower than the lower surface of the box body.

Preferably, the adjusting plate forms a lifting structure in the box body through the adjusting frame, and a light-transmitting groove formed in the front surface of the box body is matched with the sealing plate.

Preferably, the gear and the rack are connected in a meshed mode, the projector body forms a turnover structure on the adjusting plate through the gear, and the vertical central axis of the projector body and the vertical central axis of the light transmission groove are the same straight line.

Preferably, the clamping rod and the clamping block form an L-shaped structure, and the clamping rod forms a sliding structure in the cover plate through the limiting rod.

Preferably, the lower surface of the clamping block is of an arc-shaped structure, and the clamping block is connected with the clamping groove in a clamping mode.

Compared with the prior art, the beneficial effects of the utility model are that: the portable multimedia projection device convenient for projection angle adjustment is convenient for adjusting the height and the angle of the multimedia projector, accommodating and storing the multimedia projector, and adjusting the space size between the multimedia projector and the wall surface;

1. the clamping rods and the clamping grooves are arranged, the clamping rods form a telescopic structure in the cover plate through the springs, so that the space size of the clamping rods can be conveniently adjusted, the clamping rods can be conveniently clamped in the clamping grooves, the cover plate can be conveniently fixed on the box body, the projector body can be conveniently stored, and the influence of dust can be avoided;

2. the projector is provided with the gear and the rack, and the gear and the rack are connected in a meshing manner, so that the angle of the gear can be adjusted when the adjusting plate is lifted, the angle of the projector body can be adjusted conveniently, and the projector is convenient to adjust and use;

3. be equipped with two-way screw rod, runner and alignment jig, two-way screw rod passes through the runner and drives the box when removing in the front and back, adjusts the lift of alignment jig to be convenient for adjust the height of projector body, convenient quick regulation makes things convenient for the projection to use.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a side view cross-sectional structure of the gear and rack connection of the present invention;

FIG. 4 is a schematic view of the overall structure of the box body of the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a box body; 2. a bidirectional screw; 3. a lower slide block; 4. an adjusting bracket; 5. a rotating wheel; 6. an adjusting plate; 7. a support; 8. a rotating shaft; 9. a gear; 10. a projector body; 11. a rack; 12. a cover plate; 13. a sealing plate; 14. a card slot; 15. a limiting rod; 16. a clamping rod; 17. a spring; 18. a clamping block; 19. an upper slide block; 20. a light-transmitting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a portable multimedia projection device convenient for projection angle adjustment comprises a box body 1, a bidirectional screw 2, a lower sliding block 3, an adjusting frame 4, a rotating wheel 5, an adjusting plate 6, a support 7, a rotating shaft 8, a gear 9, a projector body 10, a rack 11, a cover plate 12, a sealing plate 13, a clamping groove 14, a limiting rod 15, a clamping rod 16, a spring 17, a clamping block 18, an upper sliding block 19 and a light transmission groove 20, wherein the lower end inside the box body 1 is rotatably connected with the bidirectional screw 2, the left end and the right end of the bidirectional screw 2 are fixedly connected with the rotating wheel 5, the outer surface of the bidirectional screw 2 is in threaded connection with the lower sliding block 3, the upper end of the lower sliding block 3 is hinged with the adjusting frame 4, the upper end of the adjusting frame 4 is hinged with the upper sliding block 19, the upper sliding block 19 is in sliding connection with the adjusting plate 6, the upper end of the, outer fixed surface of pivot 8 is connected with gear 9, and fixed mounting has projector body 10 between gear 9's the monomer, the upper end inner wall fixedly connected with rack 11 of box 1, and the top of box 1 is provided with apron 12, the front end downside fixedly connected with closing plate 13 of apron 12, and all through connection has kelly 16 in both ends about apron 12, the inside through connection of kelly 16 has gag lever post 15, and the surface cover of gag lever post 15 is equipped with spring 17, and the lower extreme fixedly connected with fixture block 18 of kelly 16, light-permeable groove 20 has been seted up to the front surface upside of box 1, and draw-in groove 14 has all been seted up to the upper end left and right sides inner wall of box 1.

Lower slider 3 constitutes sliding construction at the inner wall of box 1 through runner 5 in fig. 1 and fig. 4, and the lower surface of runner 5 is less than the lower surface of box 1, conveniently drive box 1 and carry out skew around, thereby adjust the height dimension of alignment jig 4, adjust board 6 and constitute elevation structure in the inside of box 1 through alignment jig 4 in fig. 1 and fig. 4, and the light trap 20 that the box 1 front surface was seted up agrees with closing plate 13 mutually, conveniently adjust the height dimension of projector body 10, also be convenient for shelter from sealed to light trap 20 through closing plate 13 simultaneously, carry out dustproof protection.

For the meshing connection between gear 9 and the rack 11 as in fig. 1 and fig. 3, and projector body 10 passes through gear 9 and constitutes flip structure on regulating plate 6, and the vertical axis of projector body 10 is same straight line with the vertical axis of light-transmitting groove 20, conveniently adjust projector body 10's rotation angle, facilitate the use, constitute "L" style of calligraphy structure like fig. 1, fig. 2 and fig. 5 kelly 16 and fixture block 18, and kelly 16 passes through gag lever post 15 and constitutes sliding structure in the inside of apron 12, conveniently fix apron 12 on box 1, conveniently carry.

As shown in fig. 1, 2 and 5, the lower surface of the clamping block 18 is in a circular arc structure, and the clamping block 18 is in clamping connection with the clamping groove 14, so that the space size of the clamping rod 16 can be conveniently adjusted, and the clamping rod is convenient to disassemble and assemble.

The working principle is as follows: when the portable multimedia projection device convenient for adjusting the projection angle is used, firstly, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the single bodies of the clamping rod 16 are mutually close to each other and extruded, so that the clamping block 18 at the lower end of the clamping rod 16 is conveniently separated from the clamping groove 14, the cover plate 12 is conveniently taken down from the upper end of the box body 1, the box body 1 rolls on the ground through the rotating wheel 5, the rotating wheel 5 drives the two-way screw rod 2 to rotate, the two-way screw rod 2 is in threaded connection with the lower sliding block 3, so that the height size of the adjusting frame 4 is conveniently adjusted, the height of the projector body 10 is conveniently adjusted, when the gear 9 rises to a certain height, the gear 9 is meshed with the rack 11, so that the turning angle of the projector body 10 is conveniently adjusted, until the projection of the projector body 10 on the wall surface is removed, the adjustment is stopped, and the projector body, facilitate the use, when closing apron 12, closing plate 13 on the apron 12 is laminated with light trap 20 mutually, conveniently carries on dustproof protection to projector body 10, conveniently carries and deposits, convenient to use, and this is the whole process that the portable multimedia projection device who makes things convenient for projection angle to adjust used.

Claims

1. The utility model provides a make things convenient for portable multimedia projection device of projection angle modulation, includes box (1) and projector body (10), its characterized in that: the inner lower end of the box body (1) is rotatably connected with a bidirectional screw rod (2), the left end and the right end of the bidirectional screw rod (2) are fixedly connected with rotating wheels (5), the outer surface of the bidirectional screw rod (2) is in threaded connection with a lower sliding block (3), the upper end of the lower sliding block (3) is in hinged connection with an adjusting frame (4), the upper end of the adjusting frame (4) is in hinged connection with an upper sliding block (19), the upper sliding block (19) is in sliding connection with an adjusting plate (6), the upper end of the adjusting plate (6) is fixedly connected with a support (7), the upper end of the support (7) is rotatably connected with a rotating shaft (8), the outer surface of the rotating shaft (8) is fixedly connected with a gear (9), a projector body (10) is fixedly installed between monomers of the gear (9), the upper end inner wall of the box body (1) is fixedly connected with a rack (, the utility model discloses a light-transmitting box, including apron (12), the front end downside fixedly connected with closing plate (13) of apron (12), and both ends all through connection have kelly (16) about apron (12), the inside through connection of kelly (16) has gag lever post (15), and the surface cover of gag lever post (15) is equipped with spring (17) to the lower extreme fixedly connected with fixture block (18) of kelly (16), light-transmitting groove (20) have been seted up to the front surface upside of box (1), and draw-in groove (14) have all been seted up to the upper end left and right sides inner wall of box (1).

2. The portable multimedia projection apparatus facilitating adjustment of projection angle according to claim 1, wherein: the lower sliding block (3) forms a sliding structure on the inner wall of the box body (1) through the rotating wheel (5), and the lower surface of the rotating wheel (5) is lower than the lower surface of the box body (1).

3. The portable multimedia projection apparatus facilitating adjustment of projection angle according to claim 1, wherein: the adjusting plate (6) forms a lifting structure in the box body (1) through the adjusting frame (4), and a light-transmitting groove (20) formed in the front surface of the box body (1) is matched with the sealing plate (13).

4. The portable multimedia projection apparatus facilitating adjustment of projection angle according to claim 1, wherein: the gear (9) is connected with the rack (11) in a meshed mode, the projector body (10) forms a turnover structure on the adjusting plate (6) through the gear (9), and the vertical central axis of the projector body (10) is the same straight line with the vertical central axis of the light transmission groove (20).

5. The portable multimedia projection apparatus facilitating adjustment of projection angle according to claim 1, wherein: the clamping rod (16) and the clamping block (18) form an L-shaped structure, and the clamping rod (16) forms a sliding structure in the cover plate (12) through the limiting rod (15).

6. The portable multimedia projection apparatus facilitating adjustment of projection angle according to claim 1, wherein: the lower surface of the clamping block (18) is of an arc-shaped structure, and the clamping block (18) is connected with the clamping groove (14) in a clamping mode.