CN217927979U

CN217927979U - Multimedia projector

Info

Publication number: CN217927979U
Application number: CN202222027550.5U
Authority: CN
Inventors: 吴倩倩; 陈垣西
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-29
Anticipated expiration: 2032-08-03

Abstract

The utility model relates to a projection equipment technical field specifically is a multimedia projector, including the crossbeam, the L-shaped groove has been seted up left to the bottom on crossbeam right side, and the right-hand member at L-shaped inslot wall top is equipped with the receipts and rolls up the box, rotates between the front and back both sides of receipts box inner wall and is connected with the wind-up roll, around being equipped with the curtain on the wind-up roll, the bottom of crossbeam and the position swing joint that is close to the left end have the rectangle movable plate that can control about, the left and right sides edge of rectangle movable plate bottom all is equipped with the dust board, swing joint has the U-shaped movable plate that can reciprocate between two dust boards, the middle part of U-shaped movable plate inner wall bottom is equipped with the projecting apparatus main part. This multimedia projector, two dust boards and the cooperation of U-shaped movable plate of rectangle movable plate bottom can form complete box to the dust is piled up in the camera lens that and then effectively prevents the projecting apparatus main part that does not use to airtight the preserving of projecting apparatus main part, also can prevent that the dust is piled up in the outside of projecting apparatus main part.

Description

Multimedia projector

Technical Field

The utility model relates to a projection equipment technical field specifically is a multimedia projector, and more specifically says and provides a multimedia projection device is used in teaching.

Background

Management is a subject for researching various phenomena and rules in human social management activities, is generated by adapting to the requirements of modern socialized mass production and aims to: the research on how to improve the productivity level through reasonably organizing and configuring people, properties, objects and other factors under the existing conditions needs to use a multimedia projection device during management and science teaching.

The patent that publication number is CN209327774U discloses a multimedia projection arrangement is used in management science, including the projecting apparatus main part, the pneumatic cylinder, electric telescopic handle, a fixed base, the mounting panel, a slide rail, including a motor, an end cap, a controller, and a cover plate, the box holds, line concentrator axle and curtain, the terminal surface under the mounting panel is assembled to the pneumatic cylinder, the mounting panel is connected at electric telescopic handle right-hand member face, electric telescopic handle fixes at the fixing base right-hand member face, the terminal surface right side under the mounting panel is installed to the fixing base, the mounting panel right side is provided with the slide rail, the terminal surface under the crossbeam is fixed to the slide rail, the motor assembly is terminal surface before the crossbeam, the motor right side is equipped with and holds the box, it is provided with line concentrator axle to hold the inside front side of box, it is connected with the curtain to hold the box downside, this design has solved management science and has used multimedia projection arrangement not convenient problem in the aspect of installation regulation, the utility model discloses rational in infrastructure, be convenient to install, the steadiness is good, the reliability is high.

Although above-mentioned technical scheme is convenient for install, and the steadiness is good, has solved management and has used multimedia projection device in the aspect of the not convenient problem enough in the installation regulation. However, the projector body in this solution is directly exposed to the outside when not in use, and the boom is used to fix the cross beam to the indoor ceiling, which causes dust to easily accumulate on the lens of the projector body. Because the position of projecting apparatus main part installation is higher, so have the great problem of the clearance degree of difficulty, and then the user of not being convenient for clears up the camera lens of projecting apparatus main part. In view of the above, a multimedia projector is proposed, in which dust accumulation at the lens of the projector main body affects the definition of a projected image, and thus affects the projection effect after a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multimedia projector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a multimedia projector, includes the crossbeam, the L-shaped groove has been seted up to the bottom on crossbeam right side left, the right-hand member at L-shaped inslot wall top is equipped with the winding box, it is connected with the wind-up roll to rotate between the front and back both sides of winding box inner wall, around being equipped with the curtain on the wind-up roll, the bottom of crossbeam and the position swing joint that is close to the left end have the rectangle movable plate that can remove about, the left and right sides edge of rectangle movable plate bottom all is equipped with the dust board, two swing joint has the U-shaped movable plate that can reciprocate between the dust board, the middle part of U-shaped movable plate inner wall bottom is equipped with the projecting apparatus main part.

Preferably, the top of crossbeam is equipped with a plurality of spliced poles of equidistant arranging, every the top of spliced pole all is equipped with the furred ceiling mounting panel.

Preferably, the bottom of the winding box and the position close to the right edge are provided with strip-shaped holes for the curtain to pass through.

Preferably, the front side of the winding box is provided with a second motor through a mounting seat, and the end part of an output shaft of the second motor penetrates through the front side of the winding box and is coaxially connected with a rotating shaft at the front end of the winding roller.

Preferably, a bar-shaped sliding groove is formed in the bottom of the cross beam and in a position close to the left end, a screw rod is rotatably connected between the left side and the right side of the inner wall of the bar-shaped sliding groove, a first motor is arranged on the left side of the cross beam through a mounting seat, and the end of an output shaft of the first motor penetrates through the left side of the cross beam and is coaxially connected with the left end of the screw rod.

Preferably, the middle part of the top of the rectangular moving plate is provided with a moving slide block which is connected in the strip-shaped sliding groove in a sliding mode, and the moving slide block is in threaded connection with the screw rod.

Preferably, the distance between the front side and the rear side of the U-shaped moving plate is the same as the distance between the front side and the rear side of the rectangular moving plate, and the left side and the right side of the U-shaped moving plate are respectively attached to the inner sides of the two dust baffles.

Preferably, the bottom of the rectangular movable plate and the positions close to the middle parts of the edges of the front side and the rear side are respectively provided with a positioning pipe, the bottom of the inner wall of the U-shaped movable plate and the positions close to the middle parts of the edges of the front side and the rear side are respectively provided with a positioning rod, and the two positioning rods are respectively connected in the two positioning pipes in a sliding manner.

Preferably, the middle part of the bottom of the rectangular moving plate is provided with an electric telescopic rod, the bottom of the inner wall of the U-shaped moving plate is provided with a U-shaped positioning plate for fixing the position of the projector main body, and the end part of a piston rod of the electric telescopic rod is fixedly connected to the middle part of the top of the U-shaped positioning plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this multimedia projector, two dust boards and the cooperation of U-shaped movable plate of rectangle movable plate bottom can form complete box to the dust is piled up in the camera lens that and then effectively prevents the projecting apparatus main part that does not use to airtight the preserving of projecting apparatus main part, also can prevent that the dust is piled up in the outside of projecting apparatus main part.

2. Through first motor, lead screw and removal slider, can drive the removal about the rectangle movable plate to the distance between adjustment projecting apparatus main part and the curtain.

3. The height of the projector main body can be adjusted through the electric telescopic rods, and the content projected by the projector main body can be completely displayed on the curtain.

Drawings

Fig. 1 is a schematic view of an overall first viewing angle structure of the present invention;

fig. 2 is a schematic view of an overall second viewing angle structure of the present invention;

fig. 3 is a schematic view of an assembly structure of the winding box, the winding roller and the second motor in the present invention;

fig. 4 is a schematic view of an assembly structure of the cross beam, the screw rod and the first motor in the present invention;

fig. 5 is a schematic view of an assembly structure of the rectangular moving plate and the U-shaped moving plate according to the present invention;

fig. 6 is a schematic view of an assembly structure of the rectangular moving plate and the electric telescopic rod of the present invention;

fig. 7 is a schematic view of an assembly structure of the U-shaped moving plate and the projector main body according to the present invention.

In the figure: the device comprises a beam 1, an L-shaped groove 10, a strip-shaped chute 11, a rectangular moving plate 2, a moving slide block 20, a dust baffle plate 21, a positioning tube 22, a U-shaped moving plate 3, a U-shaped positioning plate 30, a positioning rod 31, a projector main body 4, an electric telescopic rod 5, a screw rod 6, a winding box 7, a strip-shaped hole 70, a winding roller 8, a curtain 9, a connecting column 12, a ceiling mounting plate 13, a first motor 14 and a second motor 15.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-7, the present invention provides a technical solution:

a multimedia projector comprises a cross beam 1, an L-shaped groove 10 is formed in the bottom of the right side of the cross beam 1 leftwards, a winding box 7 is arranged at the right end of the top of the inner wall of the L-shaped groove 10 and used for containing a curtain 9, a winding roller 8 is rotatably connected between the front side and the rear side of the inner wall of the winding box 7, the curtain 9 is wound on the winding roller 8 and is wound and unfolded through the winding roller 8, a rectangular moving plate 2 capable of moving leftwards and rightwards is movably connected to the bottom of the cross beam 1 and close to the left end of the bottom of the cross beam, so that the distance between a projector main body 4 and the curtain 9 can be adjusted, dust baffles 21 are arranged at the edges of the left side and the right side of the bottom of the rectangular moving plate 2, a U-shaped moving plate 3 capable of moving upwards and downwards moves is movably connected between the two dust baffles 21 at the bottom of the rectangular moving plate 2 and the U-shaped moving plate 3, a complete box can be formed, the unused projector main body 4 can be stored in a sealed mode, dust accumulation of a lens of the projector main body 4 can be effectively prevented, and dust accumulation can be prevented, and dust accumulation at the middle of the bottom of the inner wall of the U-shaped moving plate 3 can be prevented.

In this embodiment, the top of crossbeam 1 is equipped with a plurality of spliced poles 12 that the equidistant was arranged, and the top of every spliced pole 12 all is equipped with furred ceiling mounting panel 13, has seted up the mounting hole on the furred ceiling mounting panel 13, can be with furred ceiling mounting panel 13 fixed mounting on indoor wall top through the inflation screw.

Specifically, a strip-shaped hole 70 for the curtain 9 to pass through is formed at the bottom of the winding box 7 and at a position close to the right edge, so that the curtain 9 can move up and down.

Further, the front side of the winding box 7 is provided with a second motor 15 through a mounting seat, the end part of an output shaft of the second motor 15 penetrates through the front side of the winding box 7 and is coaxially connected with a rotating shaft at the front end of the winding roller 8, and the winding roller 8 is driven to rotate through the second motor 15, so that the curtain 9 is wound and unfolded.

Further, the bottom of the cross beam 1 and the position close to the left end are provided with a bar-shaped sliding groove 11, a screw rod 6 is rotatably connected between the left side and the right side of the inner wall of the bar-shaped sliding groove 11, the left side of the cross beam 1 is provided with a first motor 14 through a mounting seat, the end part of an output shaft of the first motor 14 penetrates through the left side of the cross beam 1 and is coaxially connected with the left end of the screw rod 6, and the screw rod 6 is driven to rotate through the first motor 14.

Furthermore, the middle of the top of the rectangular moving plate 2 is provided with a moving slide block 20 which is slidably connected in the strip-shaped sliding groove 11, the moving slide block 20 is in threaded connection with the screw rod 6, and the moving slide block 20 is driven by the screw rod 6 to move left and right, so that the rectangular moving plate 2 is driven to move left or right, and the left and right position adjustment of the projector main body 4 is realized.

Further, the distance between the front side and the rear side of the U-shaped moving plate 3 is the same as the distance between the front side and the rear side of the rectangular moving plate 2, the left side and the right side of the U-shaped moving plate 3 are respectively attached to the inner sides of the two dust baffles 21, and when the electric telescopic rod 5 is completely contracted, the top of the U-shaped moving plate 3 is attached to the bottom of the rectangular moving plate 2, so that a complete box body is formed.

Furthermore, the bottom of the rectangular movable plate 2 and the positions close to the middle parts of the edges of the front side and the rear side are respectively provided with a positioning pipe 22, the bottom of the inner wall of the U-shaped movable plate 3 and the positions close to the middle parts of the edges of the front side and the rear side are respectively provided with a positioning rod 31, and the two positioning rods 31 are respectively connected in the two positioning pipes 22 in a sliding manner, so that the stability of the U-shaped movable plate 3 during vertical movement is improved.

Furthermore, the middle of the bottom of the rectangular moving plate 2 is provided with an electric telescopic rod 5, the bottom of the inner wall of the U-shaped moving plate 3 is provided with a U-shaped positioning plate 30 for fixing the position of the projector main body 4, the position of the projector main body 4 is further fixed, the projector main body 4 is prevented from shifting when in use, the end part of a piston rod of the electric telescopic rod 5 is fixedly connected to the middle of the top of the U-shaped positioning plate 30, and the projector main body 4 is driven to move up and down through the electric telescopic rod 5.

When the multimedia projector of the embodiment is used, a user drives the wind-up roll 8 to rotate through the second motor 15 to unfold the curtain 9 downwards, and then drives the U-shaped positioning plate 30 to move downwards through the electric telescopic rod 5, so that the U-shaped moving plate 3 and the projector main body 4 synchronously move downwards, after the projector main body 4 moves below the dust guard plate 21, the screw rod 6 is driven to rotate through the first motor 14, so that the screw rod 6 drives the moving slide block 20 to move rightwards or leftwards to adjust the distance between the projector main body 4 and the curtain 9, and meanwhile, the height of the projector main body 4 can be adjusted through the electric telescopic rod 5, so that all pictures projected by the projector main body 4 are displayed on the curtain 9; after the projector main body 4 is used, the piston rod of the electric telescopic rod 5 is reset and contracted, so that the position of the U-shaped moving plate 3 is reset, the U-shaped moving plate 3 is positioned between the two dust blocking plates 21, and the projector main body 4 is closed, so that dust is effectively prevented from being accumulated on the lens of the projector main body 4, and dust is also prevented from being accumulated on the outer side of the projector main body 4.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A multimedia projector, characterized in that: including crossbeam (1), L-shaped groove (10) have been seted up to left to the bottom on crossbeam (1) right side, the right-hand member at L-shaped groove (10) inner wall top is equipped with receipts roll box (7), it is connected with wind-up roll (8) to rotate between the front and back both sides of receipts roll box (7) inner wall, wind-up roll (8) are gone up around being equipped with curtain (9), the bottom of crossbeam (1) and the position swing joint that is close to the left end have rectangle movable plate (2) that can control about, the left and right sides edge of rectangle movable plate (2) bottom all is equipped with dust board (21), two swing joint has U-shaped movable plate (3) that can reciprocate between dust board (21), the middle part of U-shaped movable plate (3) inner wall bottom is equipped with projecting apparatus main part (4).

2. The multimedia projector of claim 1, wherein: the top of crossbeam (1) is equipped with a plurality of spliced poles (12) of equidistant arranging, every the top of spliced pole (12) all is equipped with furred ceiling mounting panel (13).

3. The multimedia projector of claim 1, wherein: and a strip-shaped hole (70) for a curtain (9) to pass through is formed at the bottom of the winding box (7) and at a position close to the edge of the right side.

4. The multimedia projector of claim 1, wherein: the front side of the winding box (7) is provided with a second motor (15) through a mounting seat, and the end part of an output shaft of the second motor (15) penetrates through the front side of the winding box (7) and is coaxially connected with a rotating shaft at the front end of a winding roller (8).

5. The multimedia projector of claim 1, wherein: the utility model discloses a motor, including crossbeam (1), mount pad, first motor (14), bar spout (11) have been seted up to the bottom of crossbeam (1) and the position that is close to the left end, it is connected with lead screw (6) to rotate between the left and right sides of bar spout (11) inner wall, the left side of crossbeam (1) is equipped with first motor (14) through the mount pad, the tip of first motor (14) output shaft pass the left side of crossbeam (1) and with the left end coaxial coupling of lead screw (6).

6. The multimedia projector of claim 5, wherein: the middle part of the top of the rectangular moving plate (2) is provided with a moving slide block (20) which is connected in a sliding manner in the strip-shaped sliding groove (11), and the moving slide block (20) is in threaded connection with the screw rod (6).

7. The multimedia projector of claim 1, wherein: the distance between the front side and the rear side of the U-shaped moving plate (3) is the same as the distance between the front side and the rear side of the rectangular moving plate (2), and the left side and the right side of the U-shaped moving plate (3) are respectively attached to the inner sides of the two dust baffles (21).

8. The multimedia projector of claim 1, wherein: the bottom of rectangle movable plate (2) and the position that is close to front and back both sides edge middle part all are equipped with registration arm (22), the bottom of U-shaped movable plate (3) inner wall and the position that is close to front and back both sides edge middle part all are equipped with registration arm (31), two registration arm (31) sliding connection respectively in two in registration arm (22).

9. The multimedia projector of claim 1, wherein: the middle part of rectangle movable plate (2) bottom is equipped with electronic liter telescopic rod (5), the bottom of U-shaped movable plate (3) inner wall is equipped with U-shaped locating plate (30) that are used for fixed projecting apparatus main part (4) position, the middle part at U-shaped locating plate (30) top is connected in the tip fixed connection of electronic liter telescopic rod (5) piston rod.