Projection device for multimedia classroom

Abstract

The utility model relates to the technical field of multimedia classrooms, in particular to a projection device for a multimedia classroom, which comprises a fixing plate, a plurality of fixing holes are formed in the fixing plate in a penetrating manner, a connecting table is arranged at the bottom end of the fixing plate, and a T-shaped support is fixed at the bottom end of the connecting table. A groove is formed in the T-shaped support, a plurality of first round holes are formed in the T-shaped support at equal intervals in a penetrating mode, a telescopic rod is arranged in the groove of the T-shaped support and detachably connected with the T-shaped support through a bolt, and a plurality of second round holes are formed in a telescopic part of the telescopic rod at equal intervals in a penetrating mode. And the telescopic rod limits the telescopic part through the first threaded knob. The T-shaped support is arranged and used for installing the telescopic rod, the device can be installed on the top of a classroom and can also be installed on the wall of the classroom, and the adaptability of an installation scene is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to multimedia classroom technical field, concretely is a projection device for multimedia classroom. BACKGROUND

[0002] The projector is also called the projector, and it is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals. The projector is widely used in families, offices, schools and entertainment places. According to different working methods, there are different types such as CRT, LCD and DLP. The projector for multimedia classroom is a kind of multimedia teaching equipment, which can better and faster display data information.

[0003] After searching, it is found that a projector support device for multimedia classroom is disclosed in Chinese patent No. 202223120828.X, which comprises a fixed plate and a support plate. A plurality of fixing holes are provided on the fixed plate. A protrusion is provided in the middle of the fixed plate along its length direction. An activity frame is provided on the protrusion. A telescopic rod is provided on the outer side of the activity frame. A lifting rod is provided at the end of the telescopic rod. The support plate is fixed on the top of the lifting rod. The angle of the support plate is adjusted by the activity frame. A projector is provided on the support plate. The activity frame is movably connected with the protrusion through a hinge shaft. A jacking bolt is provided below the telescopic rod of the activity frame. The jacking bolt passes through the activity frame and abuts against the surface of the protrusion.

[0004] However, the existing technology has the following disadvantages:

[0005] The projector support device for multimedia classroom is inconvenient to adjust the angle and height during installation. Most projector supports can only be installed on the top of the classroom or the ground with a tripod for support. It is inconvenient to install on the wall for some classrooms. INVENTION CONTENTS

[0006] (I) Technical problems solved

[0007] In view of the shortcomings of the prior art, the utility model provides a projection device for multimedia classroom, which solves the problem that the projector is inconvenient to adjust the angle and height during installation, and most projector supports can only be installed on the top of the classroom or the ground with a tripod for support, which is inconvenient to install on the wall for some classrooms.

[0008] (II) Technical solutions

[0009] In order to achieve the above object, the utility model discloses the following technical scheme to realize: including fixed plate, its characterized in that: the fixed plate is through a plurality of fixed holes, the fixed plate bottom is provided with the connecting table, the connecting table bottom is fixed with T-shaped support, the T-shaped support is provided with the recess, the T-shaped support is through equidistance and is provided with a plurality of first round holes, the T-shaped support recess is provided with the telescopic link, the telescopic link is through bolt detachable and is connected with T-shaped support, the telescopic link telescopic part is through equidistance and is provided with a plurality of second round holes, the telescopic link is through the first screw knob and is positioned to telescopic part, the telescopic link bottom is provided with the rotary frame, the rotary frame is internally provided with the carousel, and the carousel bottom is connected with the box.

[0010] As a preferred of the utility model, the rotary frame upper end is provided with the limit block, and the limit block is screw threaded and provided with the second screw knob.

[0011] As a preferred of the utility model, the box is internally provided with a plurality of support blocks, and the support block is rotatably connected with the storage plate.

[0012] As a preferred of the utility model, the box bottom is fixed with a plurality of motors, and the motor is drivingly connected with the threaded rod.

[0013] As a preferred of the utility model, the storage plate is through the setting and has the sliding slot.

[0014] As a preferred of the utility model, the threaded rod is screw threaded and connected with the lifting block, and the round rod is arranged between the lifting blocks.

[0015] As a preferred of the utility model, the storage plate upper end is provided with the limit rod, and the storage plate upper end limit rod one side is provided with the projector.

[0016] As a preferred of the utility model, the limit rod one side is provided with a plurality of U-shaped limit blocks, and the U-shaped limit block one side middle part is concave.

[0017] (Three) beneficial effects

[0018] The utility model provides a kind of projection device for multimedia classroom, with following beneficial effects:

[0019] 1, the utility model discloses a kind of projection device for multimedia classroom, through setting T-shaped support, for installing telescopic link, the setting of T-shaped support makes it can be installed in classroom top, also can be installed on classroom wall, improve the adaptability of installation scene.

[0020] 2, the utility model discloses a kind of projection device for multimedia classroom, through setting storage plate, for placing projector, through setting lifting block, by threaded rod rotation drives lifting block to move up and down, realizes the angle adjustment of storage plate.

[0021] 3、The utility model discloses a projection device for multimedia classroom through setting up carousel, makes the device can realize the rotation of horizontal direction, and it is convenient for adapting installation environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the rear side structure schematic diagram of the utility model;

[0025] Figure 3 It is the main structure schematic diagram of the utility model;

[0026] Figure 4 It is the right structure schematic diagram of the utility model;

[0027] In the drawing: 1, fixed hole;2, fixed plate;3, connecting table;4, T-shaped support;5, first round hole;6, telescopic link;7, first threaded knob;8, second round hole;9, rotating frame;10, carousel;11, projector;12, storage plate;13, limit rod;14, support block;15, motor;16, lifting block;17, sliding slot;18, threaded rod;19, box;20, limit block;21, second threaded knob;22, recess;23, U-shaped limit block;24, round rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] Please refer to Figures 1 to 4The utility model provides a kind of technical scheme: a projection device for multimedia classroom, including fixed plate 2, the fixed plate 2 is provided with several fixed holes 1, the fixed plate 2 bottom end is provided with connecting table 3, the connecting table 3 bottom end is fixed with T-shaped support 4, the T-shaped support 4 is provided with recess 22, the T-shaped support 4 is provided with several first round holes 5 at equal intervals, the T-shaped support 4 recess 22 is provided with telescopic link 6, the telescopic link 6 is detachable with T-shaped support 4 by bolt, the telescopic link 6 telescopic component is provided with several second round holes 8 at equal intervals, the telescopic link 6 is positioned to telescopic component by first screw knob 7, the telescopic link 6 bottom end is provided with rotating stand 9, the rotating stand 9 is provided with turntable 10 inside, and the turntable 10 bottom end is connected with box 19.

[0030] In the embodiment of the utility model, the fixed plate 2 is provided with several fixed holes 1, and the expansion bolts are used for detachable fixed installation with the roof and the wall, the fixed plate 2 bottom end is provided with connecting table 3, for installing T-shaped support 4, the connecting table 3 bottom end is fixed with T-shaped support 4, the T-shaped support 4 is provided with recess 22, the setting of T-shaped support 4 can be installed on the top of classroom, can also be installed on classroom wall, improve the adaptability of installation scene, the T-shaped support 4 is provided with several first round holes 5 at equal intervals, and the setting of the equal interval first round hole 5 can adapt to the installation mode of roof and wall, the T-shaped support 4 recess 22 is provided with telescopic link 6, the height of box 19 can be changed, the telescopic link 6 is detachable with T-shaped support 4 by bolt, the telescopic link 6 telescopic component is provided with several second round holes 8 at equal intervals, for limiting, the telescopic link 6 is positioned to telescopic component by first screw knob 7, the telescopic link 6 bottom end is provided with rotating stand 9, for installing turntable 10, the rotating stand 9 is provided with turntable 10 inside, for connecting box 19, the turntable 10 is rotatably connected between rotating stand 9, and the horizontal angle rotation of box 19 is realized.

[0031] Specifically, the rotating stand 9 upper end is provided with limiting block 20, and the limiting block 20 is provided with second screw knob 21.

[0032] In order to solve the problem of limiting after the rotation of the turntable, as shown in Figure 1 The upper end of the rotating stand 9 is provided with a limiting block 20, and the limiting block 20 is provided with a second screw knob 21, the second screw knob 21 is threaded through the limiting block 20 and the upper region of the rotating stand 9 and the turntable 10, and the second screw knob 21 is in contact with the turntable 10 when the turntable 10 is rotated to the desired angle. The second screw knob 21 is used to limit the turntable 10, so that the turntable 10 does not rotate.

[0033] Specifically, the box 19 is provided with several supporting blocks 14, and the supporting blocks 14 are rotatably connected with the storage plates 12.

[0034] In order to solve the installation of the storage plate, as shown in Figure 1 The box 19 is internally provided with a plurality of supporting blocks 14 for installing the storage plate 12, and the supporting blocks 14 are rotatably connected with the storage plate 12, so that the storage plate 12 is not limited when the slope of the storage plate 12 is changed.

[0035] Specifically, a plurality of motors 15 are fixed at the bottom end of the box 19, and the motors 15 are drivingly connected with threaded rods 18.

[0036] In order to solve the problem of driving rotation of the threaded rod, as shown in Figure 1 The bottom end of the box 19 is fixed with a plurality of motors 15 for providing driving force for the rotation of the threaded rod 18. The motor 15 is drivingly connected with the threaded rod 18 to realize the rotation of the threaded rod 18. The motor 15 is electrically connected with the podium controller and controls the same.

[0037] Specifically, the storage plate 12 is provided with a sliding groove 17.

[0038] In order to solve the problem of component installation, as shown in Figure 1 The storage plate 12 is provided with a sliding groove 17 to provide a moving space for the components.

[0039] Specifically, the threaded rod 18 is threadedly connected with a lifting block 16, and a round rod 24 is arranged between the lifting blocks 16.

[0040] In order to solve the problem of changing the angle of the storage plate, as shown in Figure 1 , 2 The threaded rod 18 is threadedly connected with a lifting block 16, and the rotation of the threaded rod 18 realizes the change of the height of the lifting block 16. A round rod 24 is arranged between the lifting blocks 16, and the round rod 24 is located between the sliding grooves 17. The lifting of the round rod 24 is driven by the lifting block 16 to realize the change of the slope of the storage plate 12.

[0041] Specifically, a limiting rod 13 is arranged at the upper end of the storage plate 12, and a projector 11 is arranged on one side of the limiting rod 13 at the upper end of the storage plate 12.

[0042] In order to solve the problem of limiting the projector, as shown in Figure 1 A limiting rod 13 is arranged at the upper end of the storage plate 12 for limiting the projector 11 to prevent the projector 11 from falling when the angle is changed. The projector 11 is arranged on one side of the limiting rod 13 at the upper end of the storage plate 12 for projecting and playing pictures.

[0043] Specifically, a plurality of U-shaped limiting blocks 23 are arranged on one side of the limiting rod 13, and the middle part of one side of the U-shaped limiting block 23 is concave.

[0044] In order to solve the problem of preventing the projector from falling from both sides, as shown in Figure 2As shown, the limiting rod 13 is provided with a plurality of U-shaped limiting blocks 23 on one side, and the middle of one side of the U-shaped limiting block 23 is concave, which is used for the adaptive plug-in of the bottom supporting leg of the projector 11, preventing the projector 11 from sliding from both sides to limit.

[0045] The detailed description of known functions and known components is omitted in the specific implementation of the present disclosure, and the operation means adopted is consistent with the parameters of the market instruments to ensure the compatibility of the equipment.

[0046] In summary, the working principle and use process of the utility model: the fixed plate 2 is provided with a plurality of fixed holes 1, which is used for detachable fixed installation with the roof and wall through the expansion bolt, the fixed plate 2 bottom end is provided with the connecting table 3, which is used for installing the T-shaped support 4, the connecting table 3 bottom end is fixed with the T-shaped support 4, the T-shaped support 4 is provided with the recess 22, the setting of the T-shaped support 4 can be installed on the classroom top, also can be installed on the classroom wall, improves the adaptability of installation scene, the T-shaped support 4 is provided with a plurality of first circular holes 5 at equal intervals, the setting of the first circular hole 5 at equal intervals can adapt to the roof and wall installation mode, the T-shaped support 4 recess 22 is provided with the telescopic rod 6, can realize the change of the height of the box body 19, the telescopic rod 6 is detachable with the T-shaped support 4 through bolt, the telescopic rod 6 telescopic part is provided with a plurality of second circular holes 8 at equal intervals, is used for limiting, the telescopic rod 6 is through the first screw knob 7 to the telescopic part limiting, the telescopic rod 6 bottom end is provided with the rotary frame 9, is used for installing the turntable 10, the rotary frame 9 is provided with the turntable 10 inside, is used for connecting the box body 19, the turntable 10 is rotatably connected between the rotary frame 9, realizes the horizontal angle rotation of the box body 19, the rotary frame 9 upper end is provided with the limiting block 20, is used for setting the second screw knob 21, the limiting block 20 is screw threaded with the second screw knob 21, the second screw knob 21 is screw threaded through the limiting block 20 and the rotary frame 9 upper region and the turntable 10 abutment interface, when the turntable 10 rotates the angle of adaptation is through the second screw knob 21 to the turntable 10 limiting, makes it not in the rotation, the box body 19 is provided with a plurality of support blocks 14 inside, is used for installing the placing plate 12, the support block 14 rotatably connects with the placing plate 12, makes it not be limited when the placing plate 12 gradient changes, the box body 19 bottom end is fixed with a plurality of motors 15, is used for providing driving force for the rotation of the threaded rod 18, the motor 15 is drivingly connected with the threaded rod 18, realizes the rotation of the threaded rod 18, the motor 15 is electrically connected with the platform controller and controls it, the placing plate 12 is provided with the sliding groove 17, provides the activity space for the movement of the component, the threaded rod 18 is screw connected with the lifting block 16, realizes the height change of the lifting block 16 through the rotation of the threaded rod 18, the circular rod 24 is arranged between the lifting block 16, the circular rod 24 is located between the sliding groove 17, the lifting of the circular rod 24 is driven through the lifting block 16, realizes the change of the placing plate 12 gradient, the placing plate 12 upper end is provided with the limiting rod 13, is used for limiting the projector 11, prevents the projector 11 from falling when the angle changes, the placing plate 12 upper end limiting rod 13 one side is provided with the projector 11, is used for projecting the picture, the limiting rod 13 one side is provided with a plurality of U-shaped limiting blocks 23, the one side middle part of the U-shaped limiting block 23 is concave, is used for the bottom support leg of the projector 11 adaptive plug-in, prevents the projector 11 from falling from both sides and is limited.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A projection device for multimedia classrooms, comprising a fixed plate (2), characterized in that: The fixed plate (2) is provided with a plurality of fixing holes (1), the bottom end of the fixed plate (2) is provided with a connecting table (3), the bottom end of the connecting table (3) is fixedly provided with a T-shaped support (4), the T-shaped support (4) is provided with a groove (22), the T-shaped support (4) is provided with a plurality of first circular holes (5) at equal intervals, the T-shaped support (4) is provided with a telescopic rod (6) in the groove (22), the telescopic rod (6) is detachably connected with the T-shaped support (4) through bolts, the telescopic part of the telescopic rod (6) is provided with a plurality of second circular holes (8) at equal intervals, the telescopic rod (6) is provided with a first threaded knob (7) for limiting the telescopic part, the bottom end of the telescopic rod (6) is provided with a rotating frame (9), the rotating frame (9) is internally provided with a turntable (10), and the bottom end of the turntable (10) is connected with a box body (19).

2. The projection device for multimedia classroom according to claim 1, characterized in that: The upper end of the rotating frame (9) is provided with a limiting block (20), and the limiting block (20) is provided with a second threaded knob (21).

3. The projection device for multimedia classroom according to claim 2, characterized in that: The inside of the box body (19) is provided with a plurality of supporting blocks (14), and the supporting blocks (14) are rotatably connected with a storage plate (12).

4. The projection device for multimedia classroom according to claim 3, characterized in that: The bottom end of the box body (19) is fixedly provided with a plurality of motors (15), and the motors (15) are drivingly connected with threaded rods (18).

5. The projection device for a multimedia classroom according to claim 4, wherein: The storage plate (12) is provided with a sliding groove (17).

6. The projection device for a multimedia classroom according to claim 5, wherein: The threaded rods (18) are threadedly connected with lifting blocks (16), and the lifting blocks (16) are provided with a circular rod (24) therebetween.

7. The projection device for a multimedia classroom according to claim 6, wherein: The upper end of the storage plate (12) is provided with a limiting rod (13), and one side of the limiting rod (13) is provided with a projector (11).

8. The projection device for a multimedia classroom according to claim 7, wherein: The limiting rod (13) is provided with a plurality of U-shaped limiting blocks (23) on one side, and the middle part of one side of the U-shaped limiting blocks (23) is concave.

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