CN214799732U

CN214799732U - Multi-azimuth digital multimedia movie and television projection display device

Info

Publication number: CN214799732U
Application number: CN202121388082.3U
Authority: CN
Inventors: 陈淑萍; 施仪利; 何婧
Original assignee: Chongqing Aerospace Polytechnic College
Current assignee: Chongqing Aerospace Polytechnic College
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-19
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a diversified digital multimedia movie & TV projection display device relates to the multimedia device field. This diversified digital multimedia movie & TV projection display device includes: the curtain comprises a fixed strip, wherein two support frames are welded at the bottom of the fixed strip, the fixed strip is in threaded connection with a threaded rod, the top end of the threaded rod is rotatably connected with a frame, and the front side of the frame is fixedly connected with a curtain; the arc piece, the arc piece assembly is in the one end of fixed strip, just be equipped with transmission assembly between arc piece and the fixed strip, the spline groove that link up from top to bottom is seted up to the arc piece, sliding connection has the integral key shaft on the inner wall in spline groove, the top fixed connection of integral key shaft is on the outer wall of frame. This diversified digital multimedia movie & TV projection display device has driven arc rack and integral key shaft and has slowly rotated, until frame and curtain rotate to suitable angle can to the regulation of curtain angle has been accomplished.

Description

Multi-azimuth digital multimedia movie and television projection display device

Technical Field

The utility model relates to a multimedia equipment technical field specifically is a diversified digital multimedia movie & TV projection display device.

Background

The multimedia video projection is a device which can project images or videos onto a curtain, can be connected with a computer, a VCD, a DVD, a game machine, a DV and the like through different interfaces to play corresponding video signals, and is widely applied to families, offices, schools and entertainment places.

Multimedia movie & TV projection equipment is fixed a bit and is used in some places, and be portable a bit, it uses after fixing projector and curtain to move the place of difference, just can play the best effect of throwing because of the projector penetrates directly on the curtain again, show also the clearest on the curtain, but fix the back at projector and curtain, if a little angle of deviation between projector and the curtain, then can influence greatly and watch experience, current curtain support is inconvenient to be adjusted, therefore we have proposed a diversified digital multimedia movie & TV projection display device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model discloses a diversified digital multimedia movie & TV throws display device to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a multi-orientation digital multimedia video projection display apparatus, comprising:

the curtain comprises a fixed strip, wherein two support frames are welded at the bottom of the fixed strip, the fixed strip is in threaded connection with a threaded rod, the top end of the threaded rod is rotatably connected with a frame, and the front side of the frame is fixedly connected with a curtain;

the arc piece, the arc piece assembly is in the one end of fixed strip, just be equipped with transmission assembly between arc piece and the fixed strip, the spline groove that link up from top to bottom is seted up to the arc piece, sliding connection has the integral key shaft on the inner wall in spline groove, the top fixed connection of integral key shaft is on the outer wall of frame.

Preferably, the bottom end of the threaded rod extends downwards through the bottom wall of the fixing strip and is fixedly connected with the knob.

Preferably, transmission assembly includes the transmission shaft, the transmission shaft rotates to be connected on the inner wall of fixed strip, the fixed cover in surface of transmission shaft has connect drive gear, the drive gear meshing is connected with the arc rack, the outer wall and the arc piece fixed connection of arc rack, just the upper surface and the lower surface of arc rack laminate with the interior roof and the interior bottom wall of fixed strip respectively.

Preferably, the transmission assembly further comprises a sleeve, the top end of the transmission shaft penetrates through the top wall of the fixing strip to extend upwards, the transmission shaft is movably inserted into the sleeve, a telescopic rod and an extrusion spring are fixedly connected between the inner wall of the sleeve and the top end of the transmission shaft, and the extrusion spring is sleeved on the outer surface of the telescopic rod.

Preferably, the bottom of the sleeve is fixedly connected with an anti-slip rubber lantern ring, the anti-slip rubber lantern ring is movably sleeved on the outer surface of the transmission shaft, and the bottom of the anti-slip rubber lantern ring is tightly attached to the upper surface of the fixing strip.

The utility model discloses a diversified digital multimedia movie & TV projection display device, its beneficial effect who possesses as follows:

1. this diversified digital multimedia movie & TV throws display device, through the transmission assembly who sets up, it slides to have driven the arc piece, and the arc piece has driven the integral key shaft through the spline groove and has removed, and then has driven frame and curtain and has rotated, and is less because of drive gear's diameter to driven arc rack and the slow rotation of integral key shaft, until frame and curtain rotate to suitable angle can, thereby accomplished the regulation of curtain angle.

2. This diversified digital multimedia movie & TV throws display device, when needs highly adjust the curtain, rotates the knob, can drive the threaded rod and rotate, because of threaded rod and fixed strip threaded connection for the threaded rod upwards promotes frame and curtain rebound, and the antiport knob can stimulate frame and curtain rebound, until adjusting suitable height.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

fig. 3 is a schematic structural view of the transmission assembly of the present invention;

FIG. 4 is a schematic view of the structure of the junction between the arc-shaped block and the spline shaft of the present invention;

fig. 5 is a schematic view of the internal structure of the sleeve according to the present invention.

In the figure: 1. a fixing strip; 101. a support frame; 102. a threaded rod; 103. a frame; 104. a curtain; 2. an arc-shaped block; 201. a spline groove; 203. a spline shaft; 3. a drive shaft; 301. a transmission gear; 302. an arc-shaped rack; 303. a sleeve; 304. a telescopic rod; 305. a compression spring; 306. an anti-slip rubber lantern ring.

Detailed Description

The embodiment of the utility model discloses a multi-azimuth digital multimedia film and television projection display device,

referring to fig. 1, 2 and 4, including:

the curtain comprises a fixing strip 1, wherein two supporting frames 101 are welded at the bottom of the fixing strip 1, a threaded rod 102 is connected to the fixing strip 1 in a threaded manner, a frame 103 is rotatably connected to the top end of the threaded rod 102, and a curtain 104 is fixedly connected to the front side of the frame 103;

arc piece 2, arc piece 2 assembles the one end at fixed strip 1, and be equipped with drive assembly between arc piece 2 and the fixed strip 1, the spline groove 201 that link up about arc piece 2 has been seted up, sliding connection has integral key shaft 203 on the inner wall of spline groove 201, the top fixed connection of integral key shaft 203 is on the outer wall of frame 103, when arc piece 2 slides, it removes to have driven integral key shaft 203 through spline groove 201, and then driven frame 103 and curtain 104 and rotated, because of drive gear 301's diameter is less, thereby arc rack 302 and integral key shaft 203 slow rotation have been driven, until frame 103 and curtain 104 rotate to suitable angle can, thereby the regulation of curtain 104 angle has been accomplished.

The bottom end of the threaded rod 102 passes through the bottom wall of the fixing strip 1 and extends downwards, and is fixedly connected with a knob, so that the threaded rod 102 is convenient to rotate through the arranged knob.

Referring to fig. 3 and 5, the transmission assembly includes a transmission shaft 3, the transmission shaft 3 is rotatably connected to the inner wall of the fixing strip 1, a transmission gear 301 is fixedly sleeved on the outer surface of the transmission shaft 3, the transmission gear 301 is connected with an arc-shaped rack 302 in a meshing manner, the outer wall of the arc-shaped rack 302 is fixedly connected with the arc-shaped block 2, the circle centers of the arc-shaped rack 302 and the arc-shaped block 2 are located on the central axis of the threaded rod 102, and the upper surface and the lower surface of the arc-shaped rack 302 are respectively attached to the inner top wall and the inner bottom wall of the fixing strip 1.

Referring to fig. 5, the driving assembly further includes a sleeve 303, a top end of the driving shaft 3 passes through a top wall of the fixing strip 1 and extends upward, and is movably inserted into the sleeve 303, a telescopic rod 304 and an extrusion spring 305 are fixedly connected between an inner wall of the sleeve 303 and the top end of the driving shaft 3, and the extrusion spring 305 is sleeved on an outer surface of the telescopic rod 304.

The bottom fixedly connected with anti-skidding rubber lantern ring 306 of sleeve 303, the surface at transmission shaft 3 is cup jointed in the activity of anti-skidding rubber lantern ring 306, and the bottom of anti-skidding rubber lantern ring 306 closely laminates with the upper surface of fixed strip 1, through the anti-skidding rubber lantern ring 306 that sets up, the anti-skidding rubber lantern ring 306 closely laminates with the upper surface of fixed strip 1, greatly increased frictional force to make sleeve 303 can not take place to remove at will.

The working principle is as follows: in the using process, when the height of the curtain 104 needs to be adjusted, the threaded rod 102 can be driven to rotate by rotating the knob, the threaded rod 102 is in threaded connection with the fixing strip 1, so that the threaded rod 102 pushes the frame 103 and the curtain 104 upwards to move, and the frame 103 and the curtain 104 can be pulled to move downwards by reversely rotating the knob until the proper height is adjusted;

when the deflection angle of the curtain 104 needs to be adjusted, the sleeve 303 is pulled upwards to drive the anti-skid rubber sleeve ring 306 to be separated from the upper surface of the fixed strip 1, the telescopic rod 304 and the extrusion spring 305 are simultaneously stretched, so that the extrusion spring 305 is in a stretching state, then the sleeve 303 is rotated, the transmission shaft 3 is driven to rotate through the telescopic rod 304, the transmission gear 301 is further driven to rotate, and the arc-shaped rack 302 and the arc-shaped block 2 are driven to slide due to the meshed connection of the transmission gear 301 and the arc-shaped rack 302;

when arc piece 2 slides, and arc piece 2 has driven integral key shaft 203 through spline groove 201 and has removed, and then has driven frame 103 and curtain 104 and has rotated, because of drive gear 301's diameter is less to it can to have driven arc rack 302 and integral key shaft 203 slow rotation, until frame 103 and curtain 104 rotate to suitable angle, thereby has accomplished the regulation of curtain 104 angle.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A multi-orientation digital multimedia video projection display device, comprising:

the curtain cloth fixing device comprises a fixing strip (1), wherein two supporting frames (101) are welded at the bottom of the fixing strip (1), a threaded rod (102) is in threaded connection with the fixing strip (1), a frame (103) is rotatably connected to the top end of the threaded rod (102), and a curtain (104) is fixedly connected to the front side of the frame (103);

arc piece (2), arc piece (2) assemble the one end at fixed strip (1), just be equipped with drive assembly between arc piece (2) and fixed strip (1), spline groove (201) that link up from top to bottom are seted up in arc piece (2), sliding connection has integral key shaft (203) on the inner wall of spline groove (201), the top fixed connection of integral key shaft (203) is on the outer wall of frame (103).

2. The multi-aspect digital multimedia video projection display apparatus of claim 1, further comprising: the bottom end of the threaded rod (102) penetrates through the bottom wall of the fixing strip (1) to extend downwards and is fixedly connected with a knob.

3. The multi-aspect digital multimedia video projection display apparatus of claim 1, further comprising: the transmission assembly includes transmission shaft (3), transmission shaft (3) rotate to be connected on the inner wall of fixed strip (1), the external fixed surface of transmission shaft (3) has cup jointed drive gear (301), drive gear (301) meshing is connected with arc rack (302), the outer wall and arc piece (2) fixed connection of arc rack (302), just the upper surface and the lower surface of arc rack (302) laminate with the interior roof and the interior bottom wall of fixed strip (1) respectively.

4. The multi-aspect digital multimedia video projection display apparatus of claim 3, wherein: the transmission assembly further comprises a sleeve (303), the top end of the transmission shaft (3) penetrates through the top wall of the fixing strip (1) to extend upwards, the transmission shaft is movably inserted into the sleeve (303), a telescopic rod (304) and an extrusion spring (305) are fixedly connected between the inner wall of the sleeve (303) and the top end of the transmission shaft (3), and the extrusion spring (305) is sleeved on the outer surface of the telescopic rod (304).

5. The multi-aspect digital multimedia video projection display apparatus of claim 1, further comprising: the bottom fixedly connected with antiskid rubber lantern ring (306) of sleeve (303), antiskid rubber lantern ring (306) activity is cup jointed at the surface of transmission shaft (3), just the bottom of antiskid rubber lantern ring (306) closely laminates with the upper surface of fixed strip (1).