TWM519258U - Projection device and hanger thereof - Google Patents

Description

Projection device and its hanger

The present invention relates to a projection device and a hanger thereof, and more particularly to a projection device having a track joint and a hanger thereof.

A common use of projection devices involves suspending the projection device from the ceiling. The method of suspending the projection device on the ceiling requires fixing the hanger to the ceiling in advance, and installing a power socket on the ceiling for use by the projection device. Although the projection device is suspended from the ceiling and does not occupy a space, the installation method is complicated. Inconvenient, and the erection of the power outlet and the power cord often causes the ceiling to be aesthetically affected.

In view of this, the present invention provides a projection device and a hanger thereof for solving the above problems, and the projection device can be connected to a track, and the track provides the power required by the projection device, and the track can be a track for providing power required for the track lamp, and the projection The installation does not require changes to the existing wire configuration and space planning on the ceiling, greatly simplifying the installation process and further diversifying the application of the projection device.

The hanger of the present invention comprises a track connecting portion, a bracket, a balance bracket and a hanger body. The track connecting portion is connected with a track to transmit power provided by the track to the track connecting portion, and the bracket is connected with the track connecting portion. The balance bracket is connected to the rail joint, and the hanger body is connected to the bracket.

The hanger of the present invention may further comprise a first rotating element and a track connecting part The first rotating component comprises two connecting holes, and the bracket and the balance bracket are respectively connected to the connecting hole. The rotating rotating body rotates the first rotating component to drive the bracket and the balance bracket to rotate, so that the hanger body moves to change the position.

The hanger of the present invention may further comprise a top seat connected to the balance bracket, the top seat being changeable by the rotation causing the top seat to protrude from one of the lengths of the balance bracket.

The hanger of the present invention may further include a second rotating element, the second rotating element connecting the bracket and the hanger body, and moving the hanger body to change the position by rotating the second rotating element.

The hanger of the present invention may further comprise a mirror connected to the hanger body.

The hanger of the present invention may further comprise a third rotating element and a mirror, the third rotating element connecting the hanger body and the mirror, and adjusting the position of the mirror by rotating the third rotating element.

The hanger of the present invention may further include an AC-to-DC converter disposed inside the track joint to convert the power provided by the track into a continuous current.

The hanger of the present invention may further comprise a cover connected to the hanger body.

Wherein, a mirror may be further connected to the cover.

Wherein, a light source may be further connected to the outer cover.

The projection device of the present invention comprises a hanger and a projection body. The projection body is connected to the hanger, and the projection body is used for projecting a multimedia image.

The projection device of the present invention may further include a first rotating component, a top seat, a second rotating component, a third rotating component, a mirror, an AC-to-DC converter, a cover and a light source. The first rotating element is connected to the track connecting portion, the first rotating element comprises two connecting holes, and the bracket and the balance bracket are respectively connected with the connecting hole, and the rotating body of the first rotating element drives the bracket and the balance bracket to rotate, so that the hanger body moves to change The projection position of the multimedia image. The top seat is coupled to the balance bracket, and the top seat is changeable by rotating the top seat to protrude from one of the balance brackets. The second rotating component connects the bracket and the hanger body, and by rotating the second rotating component, the hanger body is moved to change the projection position of the multimedia image. The third rotating element is coupled to the hanger body. Mirror and third rotation The rotating element is connected, and the position of the projection of the multimedia image is changed by rotating the third rotating element to adjust the position of the mirror. The AC-to-DC converter is disposed inside the track joint to convert the power provided by the track into a continuous current for use by the projection device. The cover is connected to the hanger body. The light source is connected to the housing.

The projection device of the present invention may further comprise a receiver connected to the projection body, the receiver for receiving a multimedia signal, and causing the projection device to project the audio and video content of the multimedia signal.

The multimedia audio and video capture device is connected to the projection body, and the multimedia audio and video capture device is configured to record an image and a sound around the projection device and convert the sound into a multimedia signal. The multimedia audio and video capture device can be connected via a wired network. The road or wireless network transmits the multimedia signal to a remote device.

The above described objects, features, and advantages of the present invention will become more apparent from the written description.

400, 500‧‧‧projector

305, 505‧‧‧Projection Ontology

100, 200, 300, 501‧‧‧ hangers

10, 110, 210, 310‧‧‧ Track Connections

11, 111, 211, 311 ‧ ‧ AC to DC converter

20, 120, 220, 320‧‧‧ first rotating element

21, 22, 121, 122, 221, 222‧‧‧ holes

321, 322‧‧‧ holes

30, 130, 230, 330‧‧‧ bracket

31, 131, 231, 331‧ ‧ balanced bracket

32, 132, 232, 332‧‧‧ top seat

33, 133, 233, 333‧‧‧ screws

40, 140, 240, 340‧‧‧ second rotating element

41, 61, 141, 161, 241, 261‧ ‧ spheres

341, 361‧‧ sphere

42, 62, 142, 162, 242, 262‧‧‧ connecting rods

342, 362‧‧‧ connecting rod

43, 63, 143, 163, 243, 263‧‧‧ base

343, 363‧‧‧ base

50, 150, 250, 350‧‧‧ hanger body

60, 160, 260, 360‧‧‧ third rotating element

70, 170, 270, 370‧‧ ‧ mirror mount

71, 171, 271, 371‧‧ ‧ mirror

180, 280, 380‧‧ ‧ outer cover

181, 281, 381‧ ‧ openings

290, 390‧‧‧ light source

5051‧‧‧ Receiver

5052‧‧‧Multimedia audio and video capture device

A‧‧‧Double arrow direction

S‧‧‧ projection screen

O‧‧‧ objects

Figure 1 is a schematic illustration of a first embodiment of a hanger according to the present invention.

Figure 2 is a schematic view of a second embodiment of the hanger according to the present invention.

Figure 3 is a schematic view of a third embodiment of the hanger according to the present invention.

Figure 4 is a schematic view of a first embodiment of a projection apparatus according to the present invention.

Figure 5 is a schematic view of a second embodiment of a projection apparatus according to the present invention.

Some commercial spaces are usually provided with track lights to project the light from the track lights onto the surface of the object to be illuminated. The objects to be illuminated may include hanging on the wall. Paintings, poster boards, or statues standing on the floor. The track light system is connected to the track, and the track is connected to the ceiling or suspended from the ceiling, and the track provides the power required for the track light. The projection device of the present invention can be connected to the track used for the track light, and the power provided by the track is used by the projection device to project the multimedia image, and the projection position of the multimedia image is adjusted by adjusting the hanger.

Figure 1 is a schematic illustration of a first embodiment of a hanger according to the present invention. As shown, the hanger 100 includes a track coupling portion 10, an AC to DC converter 11, a first rotating component 20, a bracket 30, a balance bracket 31, a top seat 32, and a second rotating component 40. A hanger body 50, a third rotating component 60, a mirror mount 70 and a mirror 71. The first rotating element 20 includes a through hole 21 and a receiving hole 22. The top seat 32 includes a screw 33. The second rotating element 40 (for example, a tripod or a ball-and-socket joint) includes a ball 41, a connecting rod 42 and a base 43, the third rotating element 60 (for example, a tripod or a ball-and-socket joint) includes a ball 61, a connecting rod 62 and a base 63. The AC-DC converter 11 is disposed inside the track connecting portion 10, the first rotating element 20 is connected to the track connecting portion 10, and the two ends of the bracket 30 are respectively connected with the connecting hole 21 and the second rotating element 40, and the second rotating element 40 And connected to the hanger body 50, one end of the balance bracket 31 is connected with the connection hole 22, the other end is connected with the screw 33 of the top seat 32, and the top seat 32 is connected (topped) to the ceiling (not shown), and the mirror 71 is placed. Above the mirror mount 70, the mirror mount 70 is coupled to a third rotary element 60, which in turn is coupled to the hanger body 50.

In use, the track joint portion 10 of the hanger 100 is connected to a track (not shown, for example, a track connected to the track light, which can be pre-nailed to the ceiling or suspended from the ceiling), and the hanger 100 can be used according to the needs of the use. Move along a track (not shown) to adjust the position of the hanger 100 in space. The rail (not shown) is provided with an alternating current, and the rail connecting portion 10 is connected to a rail (not shown), so that the rail connecting portion 10 obtains an alternating current provided by a rail (not shown), and further transmits the alternating current. The AC-to-DC converter 11 placed inside the track connecting portion 10 converts the AC power received by the track connecting portion 10 into a continuous current for use by other devices. The first rotating element 20 can be arbitrarily rotated by the double arrow direction A as the rotating shaft center to drive the bracket 30 and the balance bracket 31 to rotate, thereby moving the hanger body 50 to change its position in the space. The top seat 32 is rotatable to rotate the screw 33 such that the top seat 32 moves in the direction of the double arrow A, and the length of the top seat 32 protruding from the balance bracket 31 will thus become adjustable. The ball 41 is freely rotatable or rotatable relative to the base 43 to drive the connecting rod 42 to freely rotate or rotate, so that the hanger body 50 coupled to the connecting rod 42 can be arbitrarily rotated or rotated in the space by the rotation or rotation of the ball 41. The ball 61 can be freely rotated or rotated relative to the base 63 to drive the connecting rod 62 to freely rotate or rotate, so that the mirror base 70 connected to the connecting rod 62 can be rotated or rotated in the space by the rotation or rotation of the ball 61, and The mirror 71 is rotated or rotated.

In the first embodiment of the above-mentioned hanger, the hanger 100 belongs to an asymmetrical structure, and the left side of the first rotating element 20 is connected to most other components, and when the rail connecting portion 10 of the hanger 100 is connected to a track (not shown, For example, for a track connected to a track light, which can be pre-nailed to the ceiling or suspended from the ceiling, the hanger 100 will tilt the bracket 30 to the left due to the center of gravity problem (left and right asymmetry), and balance the bracket 31 to the upper right. To solve this tilting problem, the top seat 32 can be rotated such that the length of the top seat 32 protruding from the balance bracket 31 becomes longer because the top seat 32 has been pressed against the ceiling (not shown), as the top seat 32 protrudes from the balance The length of the bracket 31 gradually becomes longer, and the balance bracket 31 is forced to no longer tilt to the upper right side, but is gradually adjusted back to the position as shown in Fig. 1, and the tilting problem of the hanger 100 can be corrected.

Figure 2 is a schematic view of a second embodiment of the hanger according to the present invention. As shown, the hanger 200 includes a track connecting portion 110, an AC to DC converter 111, a first rotating component 120, a bracket 130, a balance bracket 131, a top mount 132, and a second rotating component 140. a hanger body 150, a third rotating component 160, a mirror mount 170, a mirror 171 and a Cover 180. The first rotating component 120 includes an opening 121 and a receiving hole 122. The top 132 includes a screw 133. The second rotating component 140 (for example, a tripod or a ball-and-socket joint) includes a ball 141, a connecting rod 142 and a base 143, and a third rotating element 160 (for example, a tripod or a ball-and-socket joint) includes a ball 161, a connecting rod 162 and a base. 163, the outer cover 180 is provided with an opening 181. The AC-DC converter 111 is disposed inside the track connecting portion 110, the first rotating element 120 is connected to the track connecting portion 110, and the two ends of the bracket 130 are respectively connected to the connecting hole 121 and the second rotating element 140, and the second rotating element 140 And connected to the hanger body 150, one end of the balance bracket 131 is connected with the connection hole 122, the other end is connected with the screw 133 of the top seat 132, and the top seat 132 is connected (butted) to the ceiling (not shown), and the mirror 171 is placed. Above the mirror mount 170, the mirror mount 170 is coupled to the third rotary element 160, the third rotary component 160 is coupled to the hanger body 150, and the outer cover 180 encloses the hanger body 150.

In use, the rail connecting portion 110 of the hanger 200 is connected to a track (not shown, for example, a track connected to the track light, the track can be pre-nailed to the ceiling or suspended from the ceiling), and the hanger 200 can be used according to the needs of the use. Moving along a track (not shown) to adjust the position of the hanger 200 in the space. The rail (not shown) is provided with an alternating current, and the rail connecting portion 110 is connected to a rail (not shown), so that the rail connecting portion 110 obtains an alternating current provided by a rail (not shown), and is further disposed through the rail connecting portion. The internal AC to DC converter 111 of 110 converts the AC power received by the track connecting portion 110 into a constant current for use by other devices. The first rotating element 120 can rotate arbitrarily in the double arrow direction A as the rotating axis to drive the bracket 130 and the balance bracket 131 to rotate, thereby moving the hanger body 150 to change its position in the space. The top seat 132 is rotatable to rotate the screw 133 such that the top seat 132 moves in the double arrow direction A, and the length of the top seat 132 protruding from the balance bracket 131 will thus become adjustable. The ball 141 is freely rotatable or rotatable relative to the base 143 to drive the connecting rod 142 to freely rotate or rotate, so that the hanger body 150 connected to the connecting rod 142 can be arbitrarily rotated or rotated in the space by the rotation or rotation of the ball 141. Sphere 161 The base 163 can be freely rotated or rotated to drive the connecting rod 162 to rotate or rotate freely, so that the mirror base 170 connected to the connecting rod 162 can rotate or rotate in the space by the rotation or rotation of the ball 161, and can drive the reflection. The mirror 171 is rotated or rotated.

In the second embodiment of the above-mentioned hanger, the hanger 200 belongs to an asymmetric structure, and the left side of the first rotating element 120 is connected to most other components, and when the track connecting portion 110 of the hanger 200 is connected to a track (not shown, For example, for a track connected to a track light, which can be pre-nailed to the ceiling or suspended from the ceiling, the hanger 200 will tilt the bracket 130 to the left and balance the bracket 131 to the upper right due to the center of gravity problem (left and right asymmetry). To solve this tilting problem, the top seat 132 can be rotated such that the length of the top seat 132 protruding from the balance bracket 131 becomes longer because the top seat 132 has been pressed against the ceiling (not shown), as the top seat 132 protrudes from the balance The length of the bracket 131 gradually becomes longer, which will force the balance bracket 131 to no longer tilt to the upper right, but gradually adjust back to the position as shown in FIG. 2, thereby correcting the tilt problem of the hanger 200.

Figure 3 is a schematic view of a third embodiment of the hanger according to the present invention. As shown in the figure, the hanger 300 includes a track connecting portion 210, an AC-to-DC converter 211, a first rotating component 220, a bracket 230, a balance bracket 231, a top seat 232, and a second rotating component 240. A hanger body 250, a third rotating component 260, a mirror mount 270, a mirror 271, a cover 280, and a light source 290. The first rotating component 220 includes a receiving hole 221 and a receiving hole 222. The top rotating frame 232 includes a screw 233. The second rotating component 240 (for example, a tripod or a ball-and-socket joint) includes a ball 241, a connecting rod 242 and a base 243, the third rotating element 260 (for example, a pan-tilt or a ball-and-socket joint) includes a ball 261, a connecting rod 262 and a base 263, the outer cover 280 is provided with an opening 281. The AC-DC converter 211 is disposed inside the track connecting portion 210, and the first rotating element 220 is connected to the track connecting portion 210. The two ends of the bracket 230 are respectively connected with the connecting hole 221 and the second rotating element 240, and the second rotating element 240 And connected to the hanger body 250, one end of the balance bracket 231 is connected with the hole 222 The other end is connected to the screw 233 of the top seat 232, the top seat 232 is connected (topped) to the ceiling (not shown), the mirror 271 is placed on the mirror base 270, and the mirror base 270 and the third rotating element are connected. 260 is connected, the third rotating element 260 is connected to the hanger body 250, the outer cover 280 covers the hanger body 250, and the light source 290 is disposed inside the outer cover 280.

In use, the rail connecting portion 210 of the hanger 300 is connected to a track (not shown, for example, a track connected to the track light, which can be pre-nailed to the ceiling or suspended from the ceiling), and the hanger 300 can be used according to the needs of the user. Moving along a track (not shown) to adjust the position of the hanger 300 in the space. A rail (not shown) is provided with an alternating current, and the rail connecting portion 210 is connected to a rail (not shown), so that the rail connecting portion 210 obtains an alternating current provided by a rail (not shown), and is further disposed through the rail connecting portion. The AC-to-DC converter 211 in the 210 converts the AC power received by the track connecting unit 210 into a continuous current for use by other devices and the light source 290. The first rotating element 220 can be arbitrarily rotated by the double arrow direction A as the rotating axis to drive the bracket 230 and the balance bracket 231 to rotate, thereby moving the hanger body 250 to change its position in the space. The top seat 232 is rotatable to drive the screw 233 to rotate, so that the top seat 232 moves in the double arrow direction A, and the length of the top seat 232 protruding from the balance bracket 231 will thus become adjustable. The ball 241 is freely rotatable or rotatable relative to the base 243 to drive the connecting rod 242 to freely rotate or rotate, so that the hanger body 250 connected to the connecting rod 242 can be arbitrarily rotated or rotated in the space by the rotation or rotation of the ball 241. The ball 261 is freely rotatable or rotatable relative to the base 263 to drive the connecting rod 262 to freely rotate or rotate, so that the mirror base 270 connected to the connecting rod 262 can be rotated or rotated in the space by the rotation or rotation of the ball 261, and The mirror 271 is rotated or rotated, and the light source 290 can provide illumination.

In the third embodiment of the above-mentioned hanger, the hanger 300 belongs to an asymmetric structure, and the left side of the first rotating element 220 is connected to most other components, and when the track connecting portion 210 of the hanger 300 is connected to a track (not shown, For example, a track connected to a track light, which can be nailed in advance in the sky. After the flower board or the suspended ceiling is connected, the hanger 300 will tilt the bracket 230 to the left side and the balance bracket 231 to the right side due to the center of gravity problem (left and right asymmetry). To solve the tilt problem, the top seat 232 can be rotated. The length of the top seat 232 protruding from the balance bracket 231 is lengthened because the top seat 232 has been pressed against the ceiling (not shown), and as the top seat 232 protrudes longer than the length of the balance bracket 231, the balance bracket 231 will be forced. Further tilting to the upper right, but gradually adjusting back to the position shown in Fig. 3, the tilting problem of the hanger 300 can be corrected.

Figure 4 is a schematic view of a first embodiment of a projection apparatus according to the present invention. As shown in the figure, the projection device 400 includes a projection body 305 and a hanger. The hanger includes a track connecting portion 310, an AC-to-DC converter 311, a first rotating component 320, a bracket 330, and a balance bracket 331. A top seat 332, a second rotating component 340, a hanger body 350, a third rotating component 360, a mirror mount 370, a mirror 371, a cover 380, and a light source 390. The first rotating component 320 includes an opening 321 and a receiving hole 322. The top seat 332 includes a screw 333. The second rotating component 340 (for example, a tripod or a ball-and-socket joint) includes a ball 341, a connecting rod 342 and a base 343, the third rotating element 360 (for example, a tripod or a ball-and-socket joint) includes a ball 361, a connecting rod 362 and a base 363, the outer cover 380 is provided with an opening 381. The AC-DC converter 311 is disposed inside the track connecting portion 310, and the first rotating element 320 is connected to the track connecting portion 310. The two ends of the bracket 330 are respectively connected with the connecting hole 321 and the second rotating element 340, and the second rotating element 340 And connected to the hanger body 350, one end of the balance bracket 331 is connected with the connection hole 322, the other end is connected with the screw 333 of the top seat 332, and the top seat 332 is connected (topped) to the ceiling (not shown), and the mirror 371 is placed. Above the mirror base 370, the mirror base 370 is connected to the third rotating element 360, the third rotating element 360 is connected to the hanger body 350, the outer cover 380 covers the hanger body 350, and the light source 390 is disposed inside the outer cover 380. The projection body 305 is coupled to the hanger body 350 such that the projection body 305 is fixed to the hanger.

The projection device 400 of the present invention is installed and used in such a manner that the track connecting portion 310 of the projection device 400 is connected to a track (not shown, for example, a track connected to a track lamp, which can be nailed to the ceiling or suspended from the ceiling in advance). The connection, the track (not shown) provides an alternating current, and the track connecting portion 310 is connected to the rail (not shown), so that the track connecting portion 310 obtains the alternating current provided by the track (not shown), and is then disposed through The AC-to-DC converter 311 inside the track connecting portion 310 converts the AC power received by the track connecting portion 310 into a continuous current for use by the projection body 305 and the light source 390. The projection body 305 can project a multimedia image (not shown). The multimedia image is first incident on the mirror 371, reflected by the mirror 371, and then emitted from the opening 381 to the cover 380, and then projected onto the projection screen or the wall surface or any object surface. . The projection position of the multimedia image projected by the projection device 400 can be arbitrarily adjusted according to the use requirements. The adjustment method includes moving the hanger along the track (not shown), rotating the first rotating element 320, rotating or rotating the balls 341, 361. Light source 390 is turned on to provide illumination. In addition, the top seat 332 can be rotated to drive the screw 333 to rotate, so that the top seat 332 moves in the double arrow direction A, and the length of the top seat 332 protruding from the balance bracket 331 will thus become adjustable.

In the first embodiment of the above projection apparatus, the projection apparatus 400 belongs to an asymmetric structure, and the left side of the first rotating element 320 is connected to most other components, and the track connecting portion 310 of the projection device 400 and a track (not shown, For example, for a track connected to a track light, which can be pre-nailed to the ceiling or suspended from the ceiling, the projection device 400 will tilt the bracket 330 to the left side and balance the bracket 331 to the upper right due to the center of gravity problem (left and right asymmetry). To solve this tilting problem, the top seat 332 can be rotated such that the length of the top seat 332 protruding from the balance bracket 331 becomes longer because the top seat 332 has been pressed against the ceiling (not shown), as the top seat 332 protrudes from the balance. The length of the bracket 331 gradually becomes longer, which will force the balance bracket 331 to no longer tilt to the upper right, but gradually adjust back to the position as shown in FIG. 4, thereby correcting the tilting problem of the projection device 400.

However, it can be understood that the mirror system is connected to the hanger body in the above embodiment. It is also within the scope of this creation to change the mirror to the outer cover.

Figure 5 is a schematic view of a second embodiment of a projection apparatus according to the present invention. As shown, the projection device 500 includes a hanger 501, a projection body 505, a receiver 5051, and a multimedia video capture device 5052. The configuration of the hanger 501 is similar to that of the hanger 100 of Fig. 1, and therefore the description thereof will be omitted. The projection body 505 is coupled to the hanger body of the hanger 501 such that the projection body 505 is fixed to the hanger 501. The receiver 5051 and the multimedia video capturing device 5052 are connected to the projection body 505. The receiver 5051 can receive a multimedia signal, and the projection body 505 projects the audio and video content of the multimedia signal, and the multimedia video capturing device 5052 can record the projection device 500. One image and one sound are converted into a multimedia signal, and the multimedia signal can be transmitted to a remote device (not shown, for example, a control computer) via a wired network or a wireless network, and the device can further analyze the received signal. The image and the sound are received by the receiver 5051, and the audio and video content of the suitable multimedia signal is projected by the projection body 505 to the projection screen S.

The following will further explain how to apply the projection device 500 to the Projection Mapping film production and light sculpture display. As shown in FIG. 5, the surface of the projection screen S can be pasted with an object O to fix the object O to the projection screen. On the surface of S, a device (not shown, for example, a control computer) transmits a multimedia signal to the receiver 5051 through a wired network or a wireless network, and then the projection body 505 projects the audio and video content of the multimedia signal to the projection screen S. The multimedia video capture device 5052 captures an image of the projection screen S and transmits it back to the device through a wired network or a wireless network. The device can determine the audio and video content of the multimedia signal according to the received image of the projection screen S. Whether it is correctly projected onto the surface of the object O, when the position of the audio and video content of the multimedia signal is projected onto the surface of the object O is incorrect, the audio and video content of the multimedia signal can be re-edited, and then transmitted by the device through the wired network or the wireless network. To the receiver 5051, the video and audio content of the re-edited multimedia signal is projected by the projection body 505 to the projection screen S, and the multimedia video capture device 5052 Capture an image of the projection screen S and send it back to the device via a wired or wireless network. The device again determines whether the audio and video content of the multimedia signal is correctly projected onto the surface of the object O according to the received image of the projection screen S. After the operation is repeated several times by the above method, the audio and video content of the multimedia signal can be correctly Projected onto the surface of the object O to complete the light sculpture production. When the light sculpture display is desired, the light sculpture film can be projected onto the surface of the projection screen S and the object O via the projection device 500, and the light sculpture display can be performed, thereby providing a richer and three-dimensional visual enjoyment for the viewer.

The following will further explain how to apply the projection device 500 to an interactive advertisement. As shown in FIG. 5, when a pedestrian (not shown) approaches the projection screen S, the multimedia video capture device 5052 can capture an image of the pedestrian. And a sound transmitted to a device (not shown, such as a control computer) via a wired network or a wireless network. The device can be gender, age, appearance, dress, according to the image and sound of the pedestrian received. The identification of the personal belongings, the movements of the body, the content of the conversation, and the like, and then transmitting a special multimedia signal according to the feature identification result, and transmitting to the receiver 5051 via the wired network or the wireless network, and then projecting the special multimedia signal by the projection body 505. The audio and video content to the projection screen S is used to attract the pedestrian to watch the audio and video content of the special multimedia signal of the projection screen S, which can enhance the pedestrian parking rate and increase the advertising effect, and the multimedia video capturing device 5052 will continue to stop watching the pedestrians of the advertisement. When the image and sound are transmitted to the device, the device can update the special multimedia signal accordingly, so that the line Viewing content via a specific audio signal of a multimedia projection screen S of the device to interact with, this may provide interactive ad viewer experience is different from the general ad screen.

The projection device in the above embodiment can be easily connected to the track by the track connecting portion, which has the advantages of being easy to install, and can replace the complicated manner of fixing the hanging projector by using the projector hanger in the prior art, and Improve problems with wire layout and space design on the ceiling. In addition, the creation makes better use of the track of the track lamp that has been set up, which makes the installation of the projection device more convenient, and the image projected by the projection device can also replace the painting on the original wall or Advertising billboards make it easier to change paintings or billboards. In addition, the projection device can simultaneously emit light when projecting an image to provide proper illumination.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of protection of the creation shall be subject to the definition of the scope of the patent application attached.

400‧‧‧Projection device

305‧‧‧Projection Ontology

310‧‧‧Track Linkage

311‧‧‧AC to DC converter

320‧‧‧First rotating element

321‧‧‧Contact hole

322‧‧‧Contact hole

330‧‧‧ bracket

331‧‧‧ Balance bracket

332‧‧‧ top seat

333‧‧‧ screws

340‧‧‧Second rotating element

341‧‧‧ sphere

342‧‧‧ Connecting rod

343‧‧‧Base

350‧‧‧ hanger body

360‧‧‧third rotating element

361‧‧‧ sphere

362‧‧‧ Connecting rod

363‧‧‧Base

370‧‧‧Mirror mount

371‧‧‧Mirror

380‧‧‧ Cover

381‧‧‧ openings

390‧‧‧Light source

A‧‧‧Double arrow direction

Claims (14)

A hanger includes: a track connecting portion coupled to a track to transmit power provided by the track to the track connecting portion; a bracket coupled to the track connecting portion; and a balance bracket coupled to the track a link; and a hanger body coupled to the bracket. The hanger of claim 1, further comprising a first rotating element coupled to the track connecting portion, the first rotating element comprising two holes, the bracket and the balance bracket being coupled to the holes By rotating the first rotating component to drive the bracket and the balance bracket to rotate, the hanger body is moved to change position. The hanger of claim 1, further comprising a top seat coupled to the balance bracket, the top seat being rotatable to cause the top seat to protrude from a length of the balance bracket. The hanger of claim 1, further comprising a second rotating element, the second rotating element connecting the bracket and the hanger body, and moving the hanger body by rotating the second rotating component To change the position. The hanger of claim 1, further comprising a mirror coupled to the hanger body. The hanger of claim 1, further comprising a third rotating component and a mirror, the third rotating component connecting the hanger body and the mirror by rotating the third rotating component Adjust the mirror position. The hanger of claim 1, further comprising an AC-to-DC converter disposed inside the track joint to convert the power provided by the track into a continuous current. The hanger of claim 1, further comprising a cover coupled to the hanger body. The hanger of claim 8 further comprising a mirror coupled to the outer cover. The hanger of claim 8 further comprising a light source coupled to the outer cover. A projection apparatus comprising: the hanger of the first aspect of the patent application; and a projection body coupled to the hanger, the projection body for projecting a multimedia image. The projection device of claim 11, further comprising: a first rotating element coupled to the track connecting portion, the first rotating element comprising two holes, the bracket and the balance The bracket is coupled to the receiving holes, and the rotating body of the bracket rotates to rotate the bracket to move the hanger body to change a projection position of the multimedia image; a top seat, the top seat and the balance a bracket joint, the top seat being rotatable to change a length of the top seat protruding from the balance bracket; a second rotating element connecting the bracket and the hanger body by rotating the second Rotating the component to move the hanger body to change a projection position of the multimedia image; a third rotating component, the third rotating component is coupled to the hanger body; and a mirror coupled to the third rotating component Rotating the third rotating element to adjust the position of the mirror to change the projection position of the multimedia image; an AC-to-DC converter, the AC-to-DC converter is provided The inside of the rail connecting portion, the electric power is converted into a track provided on the DC power supply apparatus uses a projection; a housing, the housing and connected to the hanger body; and a light source connected to the housing. The projection device of claim 11, further comprising a receiver coupled to the projection body, the receiver for receiving a multimedia signal, and causing the projection device to project the audio and video content of the multimedia signal. The projection device of claim 13, further comprising a multimedia audio and video capture device coupled to the projection body, the multimedia audio capture device for recording an image and a sound around the projection device and converting the sound into a The multimedia signal, the multimedia video capture device can transmit the multimedia signal to a remote device via a wired network or a wireless network.