CN209911749U

CN209911749U - Projection equipment for multimedia

Info

Publication number: CN209911749U
Application number: CN201920598768.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Beijing Jia-Libbi Technology Co Ltd
Current assignee: Beijing Jia-Libbi Technology Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-07
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a projection equipment for multimedia, including box and projecting apparatus, the inner chamber at the box is placed to the projecting apparatus, the top central point of box puts and installs the stand, the flange is installed on the top of stand, the slide has all been seted up along left right direction at both ends about the front side surface of box, and the right side of slide is for lining up the form, the inner chamber of slide is pegged graft and is had the slider that can control the removal, the apron is installed to the front side of slider, the bottom front side screwed connection of box has moving mechanism, moving mechanism includes barrel, the cover body, screw rod, nut, plectane, arc wall and draws the pearl rope, the top rear side of barrel is connected with the bottom front side screwed connection of box, the right side central point of the cover body puts and the left side fixed mounting of barrel. This projection equipment for multimedia has dustproof function, easy operation, does not have the potential safety hazard during the use, labour saving and time saving, great demand that has satisfied the projection.

Description

Projection equipment for multimedia

Technical Field

The utility model relates to a multi-media technical field specifically is a projection equipment for multi-media.

Background

The projector is an optical instrument which utilizes an optical element to amplify the outline of a workpiece and projects the workpiece onto a screen, can be used for measuring the outline by using transmitted light and can also be used for measuring the surface shape of a non-through hole and observing the surface of a part by using reflected light, is usually used for teaching, meetings and the like, and in practical application, as the projector is exposed outside for a long time, the lens of the projector is easy to accumulate dust, the dust needs to be cleaned by using a table and chair standing at a height to prevent the projection quality from being influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection equipment for multimedia 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: a projection device for multimedia comprises a box body and a projector, wherein the projector is placed in an inner cavity of the box body, an upright post is installed at the center of the top end of the box body, a flange is installed at the top end of the upright post, slide ways are respectively arranged at the upper end and the lower end of the front side surface of the box body in the left-right direction, the right side of each slide way is in a through shape, a slide block capable of moving left and right is inserted into the inner cavity of each slide way, a cover plate is installed at the front side of each slide block, and a moving mechanism is connected to the front side of;

the moving mechanism comprises a barrel, a cover body, a screw rod, a nut, a circular plate, an arc-shaped groove and a ball pulling rope, wherein the top rear side of the barrel is connected with a bottom front side screw of a box body, the right side center of the cover body is fixedly installed on the left side of the barrel, the right side wall of the barrel is connected with one end of the screw rod in a rotating mode through a bearing, the other end of the screw rod extends out of the left side wall of the barrel and is connected with the left side of an inner cavity of the cover body through a bearing in a rotating mode, the nut is connected with a bottom left side screw of a cover plate in a threaded mode on the left side of an outer wall of the screw rod, the circular plate is installed on the left side of the outer wall of the screw rod and located in the inner cavity of the cover body, the arc-shaped groove is formed in the outer wall of the circular.

Preferably, the inner cavity of the slide way is in a dovetail groove shape, and the slide block is in adaptive insertion connection with the slide way.

Preferably, the distance between the outer wall of the circular plate and the side wall of the cover body is smaller than the bead pulling diameter of the bead pulling rope.

Preferably, the center point of the circular plate is on the same straight line with the axis of the screw.

Preferably, the number of the arc-shaped grooves is twelve, and the twelve arc-shaped grooves are distributed on the outer wall of the circular plate at intervals of 30 degrees clockwise.

Compared with the prior art, the beneficial effects of the utility model are that: this projection equipment for multimedia, when needs projection, the pulling draws pearl rope, cooperation through arc wall and plectane can make screw rod clockwise rotation, the nut will drive the apron and make the box open to the right side removal under the effect of slider, the projector projects, when needs close the box, to opposite direction pulling draw pearl rope, can make screw rod counter-clockwise rotation, drive apron through the nut removes to the left side and prevents dust to the box, prevent that the projector from falling the ash, thereby dustproof function has, moreover, the operation is simple, there is not the potential safety hazard during the use, time saving and labor saving, great demand that has satisfied the projection.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a right side sectional view of the present invention;

FIG. 3 is an enlarged view of the point A of the present invention;

fig. 4 is a front sectional view of the moving mechanism of the present invention;

fig. 5 is a left side sectional view of the cover body of the present invention.

In the figure: 1. the device comprises a box body, 2, a column, 3, a flange, 4, a projector, 5, a slide way, 6, a slide block, 7, a cover plate, 8, a cylinder body, 9, a cover body, 10, a screw rod, 11, a nut, 12, a circular plate, 13, an arc-shaped groove, 14 and a bead pulling rope.

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 multimedia projection device comprises a box body 1 and a projector 4, wherein the projector 4 is placed in an inner cavity of the box body 1, an upright post 2 is installed at the center position of the top end of the box body 1, a flange 3 is installed at the top end of the upright post 2, the box body 1 can be hung and fixed on a shed roof through the cooperation of the flange 3 and a bolt, slide ways 5 are respectively arranged at the upper end and the lower end of the front side surface of the box body 1 along the left-right direction, the right sides of the slide ways 5 are in a through shape, a slide block 6 capable of moving left and right is inserted into the inner cavity of the slide ways 5, a cover plate 7 is fixed through the slide block 6 and can be moved left and right, the length of the slide block 6 and the length of the cover plate 7 are box bodies, when the cover plate 7 moves towards the right, the slide block 6 is prevented from being separated from the slide ways 5;

the moving mechanism comprises a cylinder body 8, a cover body 9, a screw rod 10, a nut 11, a circular plate 12, an arc-shaped groove 13 and a bead pulling rope 14, the rear side of the top end of the cylinder body 8 is in screw connection with the front side of the bottom end of the box body 1, the right center position of the cover body 9 is fixedly installed with the left side of the cylinder body 8, the upper half part of the inner cavity of the cover body 9 is circular, the interval between the cover body 9 and the circular plate 12 is kept unchanged, the right side wall of the cylinder body 8 is rotatably connected with one end of the screw rod 10 through a bearing, when the screw rod 10 rotates clockwise or anticlockwise, the rotating force of the outer wall screw thread of the screw rod 10 can drive the nut 11 to move to the right or left side, the other end of the screw rod 10 extends out of the left side wall of the cylinder body 8 and is rotatably connected with the left side of the inner cavity of the cover body 9 through a, arc wall 13 has all been seted up along circumference to the outer wall of plectane 12, and the degree of depth less than or equal to of arc wall 13 draws the radius of pearl on the pearl rope 14, ensures to draw pearl ability and arc wall 13 stable contact on the pearl rope 14, draws pearl rope 14 to cup joint on the outer wall of plectane 12, and draws the pearl on the pearl rope 14 to peg graft with the inner chamber of arc wall 13, draws pearl rope 14 to extend the inner chamber bottom of the cover body 9.

The following electric devices have the following types and functions:

the projector 4: model VPL-HW68, controlled by an external operating system, for projecting to a curtain.

As the preferred scheme, further, the inner cavity shape of slide 5 is the forked tail groove form, and slider 6 and slide 5 looks adaptation grafting, improves the stability of slider 6 to can make apron 7 horizontal side-to-side movement.

Preferably, the distance between the outer wall of the circular plate 12 and the side wall of the housing 9 is smaller than the bead diameter of the bead pulling rope 14, so that the beads on the bead pulling rope 14 can enter the arc-shaped groove 13, the beads on the bead pulling rope 14 are prevented from being separated from the arc-shaped groove 13, and the phenomenon that the circular plate 12 slips when rotating is avoided.

Preferably, the central point of the circular plate 12 is aligned with the axis of the screw 10, and the circular plate 12 and the screw 10 can rotate coaxially, so that the arc-shaped groove 13 can move circularly around the axis of the screw 10.

Preferably, the number of the arc-shaped grooves 13 is twelve, and the twelve arc-shaped grooves 13 are distributed on the outer wall of the circular plate 12 at intervals of 30 degrees clockwise, so that the circular plate 12 can rotate clockwise or counterclockwise by matching the arc-shaped grooves 13 with the pull beads on the pull bead rope 14.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When projection is needed, the pull bead rope 14 is pulled, pull beads on the pull bead rope 14 pull the circular plate 12 to rotate clockwise through the arc-shaped groove 13, pull beads on a downward moving part of the pull bead rope 14 are separated from the arc-shaped groove 13 in sequence, meanwhile, pull beads on an upward moving part of the pull bead rope 14 gradually enter the arc-shaped groove 13 in sequence, the circular plate 12 drives the screw rod 10 to rotate clockwise, due to the fact that the screw rod 10 is meshed with the screw nut 11 in a threaded mode, the nut 11 pushes the cover plate 7 to move towards the right side under the limiting effect of the sliding block 6 until the nut 11 is contacted with the right side wall of the cylinder 8, the box body 1 is opened, a lens of the projector 4 can be exposed, the projector 4 realizes projection, when the box body 1 needs to be closed, the pull bead rope 14 in the opposite direction, the circular plate 12 and the screw rod 10 can rotate anticlockwise, so that the nut 11 can pull the cover plate 7 to move towards the left side until the nut, the cover plate 7 can completely shield the box body 1 and can prevent dust for the projector 4 in the box body 1, so that the high-altitude projector 4 lens does not need to be manually cleaned, the operation is simple, the time and the labor are saved, the potential safety hazard is prevented, and the popularization is facilitated.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "coupled," "plugged," "screwed," "mounted," "placed," "opened," and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral entity; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a projection equipment for multimedia, includes box (1) and projecting apparatus (4), the inner chamber in box (1) is placed in projecting apparatus (4), its characterized in that: an upright post (2) is mounted at the center of the top end of the box body (1), a flange (3) is mounted at the top end of the upright post (2), slide ways (5) are respectively formed in the upper end and the lower end of the front side surface of the box body (1) along the left-right direction, the right side of each slide way (5) is in a through shape, a slide block (6) capable of moving left and right is inserted into an inner cavity of each slide way (5), a cover plate (7) is mounted on the front side of each slide block (6), and a moving mechanism is connected to the front side of the bottom end of the box body;

the moving mechanism comprises a barrel body (8), a cover body (9), a screw rod (10), a nut (11), a circular plate (12), an arc-shaped groove (13) and a bead pulling rope (14), wherein the rear side of the top end of the barrel body (8) is in screw connection with the front side of the bottom end of the box body (1), the right central position of the cover body (9) is fixedly installed on the left side of the barrel body (8), the right side wall of the barrel body (8) is rotatably connected with one end of the screw rod (10) through a bearing, the other end of the screw rod (10) extends out of the left side wall of the barrel body (8) and is rotatably connected with the left side of an inner cavity of the cover body (9) through a bearing, the nut (11) in screw connection with the left side of the bottom end of the cover plate (7) is in threaded connection with the left side of the outer wall of the screw rod (10), the circular plate (12) is installed on the left side, the bead pulling rope (14) is sleeved on the outer wall of the circular plate (12), the beads on the bead pulling rope (14) are inserted into the inner cavity of the arc-shaped groove (13), and the bead pulling rope (14) extends out of the bottom end of the inner cavity of the cover body (9).

2. The multimedia projection apparatus according to claim 1, wherein: the inner cavity of the slide way (5) is in a dovetail groove shape, and the slide block (6) is in adaptive insertion connection with the slide way (5).

3. The multimedia projection apparatus according to claim 1, wherein: the distance between the outer wall of the circular plate (12) and the side wall of the cover body (9) is smaller than the bead pulling diameter of the bead pulling rope (14).

4. The multimedia projection apparatus according to claim 1, wherein: the central point of the circular plate (12) is on the same straight line with the axis of the screw (10).

5. The multimedia projection apparatus according to claim 1, wherein: the number of the arc-shaped grooves (13) is twelve, and the twelve arc-shaped grooves (13) are distributed on the outer wall of the circular plate (12) at intervals of 30 degrees clockwise.