CN210624082U

CN210624082U - University gives lessons and uses positioner of multimedia projector

Info

Publication number: CN210624082U
Application number: CN201921047304.8U
Authority: CN
Inventors: 黎虹
Original assignee: Shenyang Institute of Technology
Current assignee: Shenyang Institute of Technology
Priority date: 2019-07-07
Filing date: 2019-07-07
Publication date: 2020-05-26
Anticipated expiration: 2029-07-07

Abstract

The utility model discloses a university gives lessons and uses positioner of multimedia projector, including the multimedia projector body, the top fixedly connected with of multimedia projector body hangs the piece, and the protective sheath otter board has been cup jointed on the surface of multimedia projector body, and the inner wall of protective sheath otter board roof cup joints with the fixed surface who hangs the piece. This university gives lessons and uses multimedia projector's positioner, the projection angle that drives the multimedia projector body through the rotation of movable rod carries out extensive front and back adjustment, and screw propulsion principle through threaded rod and supporting backing plate, it is fixed to retrain the rotation of its movable rod is reverse, then the rotation through a screw section of thick bamboo, utilize solid fixed cylinder and smooth section of thick bamboo to rotate the restraint in the reversal, thereby utilize the screw thread displacement principle between screw section of thick bamboo and the threaded sleeve, make its smooth section of thick bamboo horizontal slip displacement on solid fixed cylinder, thereby drive multimedia projector body horizontal displacement adjustment, then reached more simple and convenient effect when installation multimedia projector body.

Description

University gives lessons and uses positioner of multimedia projector

Technical Field

The utility model relates to a multimedia projector positioning device technical field specifically is a university gives lessons and uses multimedia projector's positioner.

Background

The multimedia projector is also called a multimedia projector, is a device capable of projecting images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals, is widely applied to families, offices, schools and entertainment places at present, and has different types such as CRT, LCD, DLP and the like according to different working modes.

At present, after the installation of the existing multimedia projector for teaching in a university classroom is completed, the projection of the projector needs to be adjusted to a proper range, the projector is adjusted according to the fine adjustment projection range in the projector machine body, and when the projector needs to be adjusted at a large angle, the whole positioning equipment needs to be detached again, so that the repeated installation is very troublesome.

Disclosure of Invention

Technical problem to be solved

Not enough to prior art, the utility model provides a university gives lessons and uses positioner of multimedia projector, when having solved the projection scope of regulation and control projecting apparatus, according to throwing the demand, need tear whole positioning device open the problem that moves sometimes.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a positioning device of a multimedia projector for university teaching comprises a multimedia projector body, wherein a hanging piece is fixedly connected to the top of the multimedia projector body, a protective sleeve net plate is sleeved on the surface of the multimedia projector body, the inner wall of a protective sleeve net plate top plate is fixedly sleeved with the surface of the hanging piece, swinging pieces are fixedly connected to the two sides of the protective sleeve net plate, a hinge rod is fixedly connected to the top of the hanging piece, the top of the hinge rod is rotatably connected with the inner wall of a hinge cylinder, the top of the hinge cylinder is fixedly connected with a slide cylinder, the inner wall of the slide cylinder is slidably sleeved with the surface of a fixed cylinder, movable rods are inserted into the two sides of the fixed cylinder, the surfaces of the movable rods are movably connected with the inner wall of the fixed cylinder, the tops of the two swinging pieces are fixedly connected with the bottoms of the two movable rods respectively, and the top of the slide cylinder is fixedly connected with the bottom of a threaded sleeve, the utility model discloses a friction resistance pad, including threaded sleeve, installation pole, locating sleeve, connecting piece, threaded sleeve's inner wall and the surperficial screw thread of threaded sleeve cup joint, the inner wall of threaded sleeve cup joints with the surface screw thread of a threaded sleeve, the inner wall of a threaded sleeve cup joints with the surface rotation of installation pole, the fixed surface of a fixed section of thick bamboo both sides has all fixedly cup jointed the locating sleeve, locating sleeve's top fixedly connected with connecting piece, the top of connecting piece and the bottom fixed connection of installation pole, the side fixedly connected with of connecting piece supports the backing plate, the threaded rod has been run through on the surface of supporting the backing plate, the surface of threaded rod and the inner wall threaded connection who supports the backing plate, the bottom of threaded rod is rotated and is connected with half extrusion sleeve, the surperficial.

Preferably, the surfaces of two sides of the threaded cylinder are fixedly sleeved with limit rings, and the outer ring diameter of each limit ring is larger than that of the threaded sleeve.

Preferably, a fixed sleeve is fixedly sleeved on the surface of the connecting piece, and the top of the fixed sleeve is fixedly connected with the bottom of the mounting rod.

Preferably, the top of the threaded rod is fixedly connected with a rotating cap.

Preferably, the top of the mounting rod is fixedly connected with two limiting spacing blocks, and the two limiting spacing blocks are distributed in bilateral symmetry with the center of the mounting rod respectively.

(III) advantageous effects

The utility model provides a university gives lessons and uses multimedia projector's positioner. The method has the following beneficial effects:

(1) the positioning device of the multimedia projector for the university teaching is characterized in that the positioning device comprises a hanging piece, a protective sleeve screen plate, a hinged rod, a hinged cylinder, a sliding cylinder, a fixed cylinder, a movable rod, a swinging piece, a threaded sleeve, a threaded cylinder, an installation rod, a positioning sleeve, a connecting piece, a supporting base plate, a threaded rod and a semi-extrusion sleeve which are matched for use, so that the large-scale front-back adjustment of the projection angle of the multimedia projector body driven by the swinging piece is realized by the rotation of the movable rod, the reverse rotation of the movable rod is restrained and fixed by the screw thread propulsion principle of the threaded rod and the supporting base plate, then the rotation of the threaded cylinder is restrained by the reverse rotation of the fixed cylinder and the sliding cylinder, and the horizontal sliding displacement of the sliding cylinder on the fixed cylinder is realized by the screw thread displacement principle between the threaded cylinder and the threaded sleeve, so as to drive the horizontal displacement adjustment of the multimedia projector body, and then more simple and convenient effect when having reached installation multimedia projector body.

Drawings

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

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

fig. 3 is an enlarged schematic view of the point B in the structure diagram of fig. 2 of the present invention;

fig. 4 is an enlarged schematic view of the point C in the structure diagram of fig. 2 of the present invention.

In the figure: 1. a multimedia projector body; 2. a hanger; 3. a protective sleeve net plate; 4. a hinged lever; 5. a hinge barrel; 6. a slide cylinder; 7. a fixed cylinder; 8. a movable rod; 9. a rocking member; 10. a threaded sleeve; 11. a threaded barrel; 12. a limiting ring; 13. mounting a rod; 14. a positioning sleeve; 15. a connecting member; 16. a support pad; 17. a threaded rod; 18. semi-extruding the sleeve; 19. rotating the cap; 20. fixing the sleeve; 21. and limiting spacing blocks.

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.

As shown in fig. 1-4, the utility model provides a technical solution: a positioning device of a multimedia projector for university teaching comprises a multimedia projector body 1, a hanging piece 2 is fixedly connected to the top of the multimedia projector body 1, a protective sleeve screen 3 is sleeved on the surface of the multimedia projector body 1, the inner wall of a top plate of the protective sleeve screen 3 is fixedly sleeved with the surface of the hanging piece 2, swing pieces 9 are fixedly connected to both sides of the protective sleeve screen 3, a hinge rod 4 is fixedly connected to the top of the hanging piece 2, the top of the hinge rod 4 is rotatably connected with the inner wall of a hinge cylinder 5, a slide cylinder 6 is fixedly connected to the top of the hinge cylinder 5, the inner wall of the slide cylinder 6 is slidably sleeved with the surface of a fixed cylinder 7, movable rods 8 are inserted into both sides of the fixed cylinder 7, the surface of each movable rod 8 is movably connected with the inner wall of the fixed cylinder 7, the tops of the two swing pieces 9 are respectively fixedly connected with the bottoms of the two movable rods 8, the top of the slide cylinder 6 is fixedly connected with, the inner wall of the threaded sleeve 10 is in threaded sleeve connection with the surface of the threaded sleeve 11, the inner wall of the threaded sleeve 11 is in rotational sleeve connection with the surface of the mounting rod 13, the surfaces of two sides of the threaded sleeve 11 are fixedly sleeved with limiting rings 12, the outer ring diameter of each limiting ring 12 is larger than that of the threaded sleeve 10, the horizontal displacement effect of the threaded sleeve 10 is restrained through the arrangement of the limiting rings 12, the surfaces of two sides of the fixed cylinder 7 are fixedly sleeved with positioning sleeves 14, the tops of the positioning sleeves 14 are fixedly connected with connecting pieces 15, the tops of the connecting pieces 15 are fixedly connected with the bottom of the mounting rod 13, the surfaces of the connecting pieces 15 are fixedly sleeved with fixing sleeves 20, the tops of the fixing sleeves 20 are fixedly connected with the bottom of the mounting rod 13, the stability effect of the connecting pieces 15 is enhanced through the arrangement of the fixing sleeves 20, and the side faces of the connecting pieces 15 are fixedly connected with, threaded rod 17 runs through on the surface of backing plate 16, threaded rod 17's surface and backing plate 16's inner wall threaded connection, the rotatory cap of top fixedly connected with 19 of threaded rod 17, setting through rotatory cap 19, thereby played the effect of being convenient for rotate threaded rod 17, threaded rod 17's bottom is rotated and is connected with half extrusion sleeve 18, half extrusion sleeve 18's inner wall and movable rod 8's surperficial extrusion contact, half extrusion sleeve 18's inner wall is provided with the frictional resistance pad that is used for increasing friction, two spacing spacer blocks 21 of installation pole 13 top fixedly connected with, two spacing spacer blocks 21 are bilateral symmetry distribution with the center of installation pole 13 respectively, the both sides of installation pole 13 all are provided with installation expansion bolts, setting through spacing spacer block 21, thereby played the effect of being convenient for fixed mounting pole 13.

When the device is used, firstly, the mounting rod 13 is roughly positioned on a ceiling through an expansion screw according to a projection angle, the whole device is completely mounted, then the multimedia projector body 1 is opened, the position is adjusted according to the projection range, when the upper and lower irradiation angles of the multimedia projector body 1 need to be adjusted, the movable rod 8 is rotated, the multimedia projector body 1 is driven to adjust the projection angle through the movable rod 8, then the rotating cap 19 is rotated to drive the threaded rod 17 to rotate, the semi-extrusion sleeve is driven to extrude and restrict the rotation of the movable rod 8 reversely by utilizing the thread advancing principle of the support base plate 16, when the projection angle needs to be adjusted horizontally, then the fixed cylinder 7 and the sliding cylinder 6 rotate to restrict reversely by utilizing the rotation of the threaded cylinder 11, so that the thread displacement principle between the threaded cylinder 11 and the threaded sleeve 10 is utilized, the sliding cylinder 6 can horizontally slide and move on the fixed cylinder 7, so as to drive the multimedia projector body 1 to horizontally move and adjust to a proper projection position, and further achieve the purpose of simpler and more convenient installation of the multimedia projector body 1, and the content which is not described in detail in the specification belongs to the prior art which is known by technicians in the field.

In conclusion, the positioning device of the multimedia projector for teaching in university utilizes the principle of screw displacement between the screw thread cylinder 11 and the screw thread sleeve 10 by the arrangement of the hanging piece 2 and the matching use of the protective sleeve screen plate 3, the hinge rod 4, the hinge cylinder 5, the slide cylinder 6, the fixed cylinder 7, the movable rod 8, the swinging piece 9, the screw thread sleeve 10, the screw thread cylinder 11, the installation rod 13, the positioning sleeve 14, the connecting piece 15, the supporting base plate 16, the screw thread 17 and the semi-extrusion sleeve 18, thereby achieving the purpose of large-scale front-and-back adjustment of the projection angle of the multimedia projector body 1 driven by the swinging piece 9 through the rotation of the movable rod 8, and constraining and fixing the rotation of the movable rod 8 reversely through the screw thread propulsion principle of the screw thread cylinder 17 and the supporting base plate 16, and then utilizing the constraint of the fixed cylinder 7 and the slide cylinder 6 in the reverse rotation direction through the rotation of the screw thread cylinder 11, the sliding cylinder 6 can horizontally slide and move on the fixed cylinder 7, so that the multimedia projector body 1 is driven to horizontally move and adjust, and the effect of more convenience in mounting the multimedia projector body 1 is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 university gives lessons and uses multimedia projector's positioner, includes multimedia projector body (1), its characterized in that: the top of the multimedia projector body (1) is fixedly connected with a hanging piece (2), the surface of the multimedia projector body (1) is sleeved with a protective sleeve screen (3), the inner wall of a protective sleeve screen (3) top plate is fixedly sleeved with the surface of the hanging piece (2), both sides of the protective sleeve screen (3) are fixedly connected with a swinging piece (9), the top of the hanging piece (2) is fixedly connected with a hinged rod (4), the top of the hinged rod (4) is rotatably connected with the inner wall of a hinged cylinder (5), the top of the hinged cylinder (5) is fixedly connected with a sliding cylinder (6), the inner wall of the sliding cylinder (6) is sleeved with the surface of a fixed cylinder (7) in a sliding manner, movable rods (8) are inserted into both sides of the fixed cylinder (7), the surface of the movable rods (8) is movably connected with the inner wall of the fixed cylinder (7), the tops of the swinging pieces (9) are fixedly connected with the bottoms of the two movable rods (8) respectively, the top of a sliding barrel (6) is fixedly connected with the bottom of a threaded sleeve (10), the inner wall of the threaded sleeve (10) is sleeved with the surface thread of the threaded barrel (11), the inner wall of the threaded barrel (11) is sleeved with the surface of an installation rod (13) in a rotating manner, the surfaces of the two sides of a fixed barrel (7) are fixedly sleeved with a positioning sleeve (14), the top of the positioning sleeve (14) is fixedly connected with a connecting piece (15), the top of the connecting piece (15) is fixedly connected with the bottom of the installation rod (13), the side surface of the connecting piece (15) is fixedly connected with a supporting base plate (16), a threaded rod (17) penetrates through the surface of the supporting base plate (16), the surface of the threaded rod (17) is connected with the inner wall thread of the supporting base plate (16), the bottom of the threaded rod (17) is connected with a semi-extrusion sleeve (18) in a rotating manner, the inner wall of the semi-extrusion sleeve (18) is in surface extrusion, the inner wall of the semi-extrusion sleeve (18) is provided with a friction resistance pad for increasing friction, and two sides of the mounting rod (13) are provided with mounting expansion bolts; the surfaces of two sides of the threaded cylinder (11) are fixedly sleeved with limiting rings (12), and the outer ring diameter of each limiting ring (12) is larger than that of the threaded sleeve (10); a fixed sleeve (20) is fixedly sleeved on the surface of the connecting piece (15), and the top of the fixed sleeve (20) is fixedly connected with the bottom of the mounting rod (13); the top of the threaded rod (17) is fixedly connected with a rotating cap (19); the top of the mounting rod (13) is fixedly connected with two limiting spacing blocks (21), and the two limiting spacing blocks (21) are distributed in a bilateral symmetry mode respectively by using the center of the mounting rod (13).