CN210979063U

CN210979063U - Multimedia projection support

Info

Publication number: CN210979063U
Application number: CN201921833300.2U
Authority: CN
Inventors: 罗广军
Original assignee: Xianyang Normal University
Current assignee: Xianyang Normal University
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-07-10
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a multimedia projection support, which comprises a fixed base, tip difference fixed mounting has bracing piece and screw rod about the fixing base up end, the bracing piece upper end is connected with first round pin axle through the bearing, the fixed gear that has cup jointed in first round pin axle middle part, the fixed first connecting block that has cup jointed in the outer tip of first round pin axle, first connecting block left end fixed mounting has the second connecting block, second connecting block left end has the mount pad through second round pin axle swing joint, there is the adjusting collar through threaded connection on the screw rod, adjusting collar middle part swing joint has the third connecting block, third connecting block left end fixed mounting has the fixed plate, the fixed plate left end face has the rack through bolted connection. This kind of multimedia projection support not only can improve the efficiency that projecting apparatus adjusted the installation, and is better to the fixed effect in position after the adjustment.

Description

Multimedia projection support

Technical Field

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

Background

At present, projection instruments are widely used in daily work and life. The projection instrument is used for amplifying images, and projecting traditional video screen signals and computer signals onto a curtain through a switching port for people to enjoy and use. The teaching is a unique talent culture activity of human beings, which is formed by the teaching of teachers and the learning of students, through the activity, the teachers purposefully, programmatically and organically guide the students to learn and master the cultural scientific knowledge and skill, and promote the quality improvement of the students, so that the students become people required by the society and progress along with the continuous development of science and technology. Multimedia projection devices are generally used in modern teaching classes, and the structure for supporting the multimedia projection devices is called a multimedia projection bracket. And it is known that: the projecting apparatus is in the installation, need fix through support or gallows, and current support and gallows are installed at the projecting apparatus and are accomplished the back, can't adjust the projection angle and the position of projecting apparatus, consequently when needs change projecting apparatus projection angle or position, need install the projecting apparatus again, not only take trouble and difficultly, influence the efficiency of projecting apparatus installation, moreover poor to the fixed effect in position after the adjustment, for this, we propose a multimedia projection support.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multimedia projection support 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 projection support, includes the fixing base, tip difference fixed mounting has bracing piece and screw rod about the fixing base up end, the bracing piece upper end is connected with first round pin axle through the bearing, the fixed cover in first round pin axle middle part has the gear, the fixed cover of the outer tip of first round pin axle has first connecting block, first connecting block left end fixed mounting has the second connecting block, second connecting block left end has the mount pad through second round pin axle swing joint, the mount pad left end has the projection instrument through bolted connection, there is the adjusting collar through threaded connection on the screw rod, adjusting collar middle part swing joint has the third connecting block, third connecting block left end fixed mounting has the fixed plate, the fixed plate left end face has the rack through bolted connection.

Preferably, the gear and the rack are mutually meshed, and the width of the rack is larger than the thickness of the gear.

Preferably, the upper end and the lower end of the second pin shaft are symmetrically sleeved with limiting sleeves, and the limiting sleeves are connected to the second connecting block through threads.

Preferably, the first connecting block and the second connecting block are both U-shaped, and a gear is arranged inside the first connecting block.

Preferably, the adjusting sleeve is connected with the third connecting block through a bearing, and the adjusting sleeve is connected with the screw rod through threads.

Preferably, the screw rod and the bracing piece are parallel to each other, and the screw rod and the bracing piece are all fixed to be welded on the fixing base.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of multimedia projection support, through setting up the screw rod, the bracing piece, first connecting block, the second connecting block, third connecting block and adjusting collar structure, under gear and rack toothing effect, through the position of adjustment adjusting collar on the screw rod, can be fast to the upper and lower rotation angle regulation of projection instrument, simultaneously, can be convenient for through the stop collar to the projection instrument rotation position about fixed to not only can improve the efficiency that the installation was adjusted to the projection instrument, and it is better to the fixed effect in position after the adjustment.

Drawings

FIG. 1 is a main sectional view of the structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

fig. 3 is a schematic view of the connection between the second pin and the stop collar of the structure of the present invention.

In the figure: the device comprises a fixed seat 1, a screw rod 2, a supporting rod 3, a first pin shaft 4, a gear 5, a first connecting block 6, a second connecting block 7, a second pin shaft 8, a mounting seat 9, a projection instrument 10, a limiting sleeve 11, an adjusting sleeve 12, a third connecting block 13, a fixing plate 14 and a rack 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.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a multimedia projection support, includes fixing base 1, fixing base 1 can be fixed in ground through expansion bolts, also can be through the bolt fastening on the equipment, tip fixed mounting has bracing piece 3 and screw rod 2 respectively about 1 up end of fixing base, screw rod 2 and bracing piece 3 are parallel to each other, and screw rod 2 and bracing piece 3 all fixed welding on fixing base 1. The screw rod 2 and the supporting rod 3 are perpendicular to each other with the fixing base 1, the upper end of the supporting rod 3 is connected with a first pin shaft 4 through a bearing, a gear 5 is fixedly sleeved on the middle portion of the first pin shaft 4, a first connecting block 6 is fixedly sleeved on the outer end portion of the first pin shaft 4, the first connecting block 6 is arranged on the outer side of the supporting rod 3, the first connecting block 6 is fixedly sleeved on the first pin shaft 4, a second connecting block 7 is fixedly mounted at the left end portion of the first connecting block 6, the first connecting block 6 and the second connecting block 7 are both in a U shape, and the gear 5 is arranged inside the first connecting block 6. The first connecting block 6 and the second connecting block 7 can be connected through bolts, so that the projection support can be conveniently detached and carried, the left end part of the second connecting block 7 is movably connected with the mounting seat 9 through a second pin shaft 8, the second pin shaft 8 is movably inserted into the left end part of the second connecting block, the limiting sleeves 11 are symmetrically sleeved on the second pin shaft 8, the second pin shaft 8 is I-shaped, the limiting sleeves 11 are symmetrically sleeved on the upper end part and the lower end part of the second pin shaft 8, and the limiting sleeves 11 are connected onto the second connecting block 7 through threads. 8 lateral surfaces of second round pin axle are equipped with the lug, 11 medial surfaces of stop collar are equipped with the recess, lug swing joint is in the recess, through this connected mode, can make second round pin axle 8 follow stop collar 11 and rotate simultaneously, there is projection instrument 10 at the 9 left end portion of mount pad through bolted connection, there is adjusting collar 12 through threaded connection on the screw rod 2, adjusting collar 12 passes through the bearing with third connecting block 13 and is connected, and adjusting collar 12 passes through threaded connection with screw rod 2. When the rotary adjusting sleeve 12 makes it move up and down on the screw rod 2, can drive the up-and-down motion of third connecting block 13, fixed plate 14 and rack 15, 12 middle part swing joint of adjusting sleeve has third connecting

block

13, 13 left end fixed mounting of third connecting block has fixed plate 14, fixed plate 14 fixed welding is on third connecting block 13, and third connecting

block

13 and 14 mutually perpendicular of fixed plate, there is rack 15 fixed plate 14 left end face through bolted connection. The gear 5 is meshed with the rack 15, and the width of the rack 15 is larger than the thickness of the gear 5. The multimedia projection bracket can adjust the position of the adjusting sleeve 12 on the screw rod 2 by manually rotating the adjusting sleeve 12 under the meshing action of the gear 5 and the rack 15, thereby quickly adjusting the vertical rotating angle of a projection instrument, when the projector 10 is tilted up to the right, the adjusting sleeve 12 is manually rotated to move the adjusting sleeve 12 downward on the screw rod 2, and at this time, the first pin 4 drives the projector 10 to tilt up to the right, and conversely, in the same way, the projector 10 can be tilted down to the right, meanwhile, the installation seat 9 is rotated to form an included angle between the installation seat 9 and the second connecting block 7, at the moment, the left and right inclination angles of the projection instrument 10 can be adjusted, the left and right rotating positions of the projection instrument 10 can be conveniently fixed through the limiting sleeve 11, therefore, the efficiency of adjusting and installing the projection instrument can be improved, and the adjusted position fixing effect is better.

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 multimedia projection support, includes fixing base (1), its characterized in that: the left end and the right end of the upper end face of the fixing seat (1) are respectively fixedly provided with a support rod (3) and a screw rod (2), the upper end of the support rod (3) is connected with a first pin shaft (4) through a bearing, the middle of the first pin shaft (4) is fixedly sleeved with a gear (5), the outer end of the first pin shaft (4) is fixedly sleeved with a first connecting block (6), the left end of the first connecting block (6) is fixedly provided with a second connecting block (7), the left end of the second connecting block (7) is movably connected with a mounting seat (9) through a second pin shaft (8), the left end of the mounting seat (9) is connected with a projection instrument (10) through a bolt, the screw rod (2) is connected with an adjusting sleeve (12) through a thread, the middle of the adjusting sleeve (12) is movably connected with a third connecting block (13), the left end of the third, the left end face of the fixing plate (14) is connected with a rack (15) through a bolt.

2. The multimedia projection stand of claim 1, wherein: the gear (5) is meshed with the rack (15), and the width of the rack (15) is larger than the thickness of the gear (5).

3. The multimedia projection stand of claim 1, wherein: and the upper end part and the lower end part of the second pin shaft (8) are symmetrically sleeved with a limiting sleeve (11), and the limiting sleeve (11) is connected onto the second connecting block (7) through threads.

4. The multimedia projection stand of claim 1, wherein: first connecting block (6) and second connecting block (7) all are "U" font, and first connecting block (6) inside is equipped with gear (5).

5. The multimedia projection stand of claim 1, wherein: the adjusting sleeve (12) is connected with the third connecting block (13) through a bearing, and the adjusting sleeve (12) is connected with the screw rod (2) through threads.

6. The multimedia projection stand of claim 1, wherein: screw rod (2) and bracing piece (3) are parallel to each other, and screw rod (2) and bracing piece (3) are all fixed to be welded on fixing base (1).