Electric projection screen with audio and video intelligent control equipment

Abstract

The utility model relates to the field of projection screens, in particular to an electric projection screen with audio and video intelligent control equipment, which comprises a shell, a rotating tube, a curtain and a curtain lower rod. One end of the rotating pipe in the length direction is connected with the shell through a rewinding motor, and the other end of the rotating pipe is in shaft connection with the shell through a rotating pipe component; the upper end of the curtain is connected with the rotating pipe and can be wound on the rotating pipe along with rotation of the rotating pipe, and the lower end of the curtain is connected with the curtain lower rod; a power supply device and / or a communication device with a wire are / is arranged on the shell, one end of the wire is connected with the power supply device and / or the communication device, then enters the rotating pipe through a conductive slip ring of the rotating pipe component on the rotating shaft or a hole of the rotating pipe component in the rotating shaft, and then penetrates out of the rotating pipe through a through hole formed in the rotating pipe; the other end of the wire is connected with the lower rod of the curtain, and the other end of the wire is connected with the lower rod of the curtain. The curtain lower rod is provided with an audio and video intelligent control device, and the audio and video intelligent control device is connected with a power supply device and / or a communication device on the shell through a wire.

Description

Technical Field

[0001] This utility model relates to the field of projection screens, and more specifically, to an electric projection screen with audio and video intelligent control equipment. Background Technology

[0002] Traditional projection screens are only used to display the image projected by the projector. Therefore, when playing movies or conducting video conferences, it is usually necessary to configure an additional sound system and video conferencing system, which not only increases the cost but also makes the installation process complicated.

[0003] With the rapid development of technology in recent years, projection screens have become increasingly widely used and have gradually become popular as home entertainment devices. In order to enhance the user experience, projection screens with built-in sound systems and video conferencing systems have emerged to achieve audio-visual integration and bring users a cinematic immersive experience.

[0004] However, in the early designs, the audio system and video conferencing system were both mounted on the housing of the projection screen. Since the screen was not mounted at the same horizontal level as the audience, the audio system was not effective, and the video conferencing system could only be used from a top-down angle.

[0005] Therefore, it is necessary to propose an electric projection screen with intelligent audio and video control equipment to solve the above problems. Utility Model Content

[0006] To overcome at least one of the defects (deficiencies) of the prior art described above, this utility model provides an electric projection screen with an audio-visual intelligent control device.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: an electric projection screen with audio and video intelligent control equipment, including a housing, a rotating tube, a screen, and a lower screen rod;

[0008] One end of the rotating tube along its length is connected to the housing via a rewind motor, and the other end is connected to the housing shaft via a rotating tube assembly;

[0009] The upper end of the curtain is connected to the rotating tube and can be wound around the rotating tube as it rotates; the lower end of the curtain is connected to the lower curtain rod.

[0010] The housing is equipped with a power supply device and / or communication device with a wire. One end of the wire is connected to the power supply device and / or communication device, and then enters the rotating tube through the conductive slip ring on the rotating shaft of the rotating tube component or the hole built into the rotating shaft of the rotating tube component. The wire then passes out of the rotating tube through the through hole provided on the rotating tube and is wound around the rotating tube together with the curtain. The other end of the wire is connected to the lower rod of the curtain.

[0011] The lower rod of the screen is equipped with an audio-visual intelligent control device. The audio-visual intelligent control device is connected to a power supply device and / or a communication device on the housing via a wire. This utility model achieves better audio and video effects by placing the audio-visual intelligent control device on the lower rod of the screen so that it is horizontal to the audience's auditory and visual position. In order to facilitate the winding and unwinding of the wire, after the wire is connected to the power supply device and / or the communication device, the wire enters the rotating tube through the hole of the rotating tube component, and then exits the rotating tube through the through hole provided on the rotating tube. The wire is then wound around the rotating tube together with the screen, thereby realizing the winding of the wire and the screen.

[0012] Furthermore, the through hole for the wire to pass through from inside the rotating tube to outside the rotating tube is located near the left and right edges of the screen. Since the through hole is located near the left and right edges of the screen, the wire can pass through the screen multiple times after exiting the rotating tube and be fixed to both sides of the lower rod of the screen, which facilitates the connection between the wire and the screen and the lower rod of the screen.

[0013] Furthermore, the wires include a first connecting wire and a second connecting wire. During the rotation of the rotating tube, the first connecting wire and the second connecting wire twist in opposite directions. The purpose of this opposite twisting is to reduce the number of rotations of the wires. For example, taking a 100-inch electric projection screen as an example, its total height is about 1.8 meters. When the screen is opened, the rotating tube needs to rotate about 10 times. If it rotates 5 times in the opposite direction first, then the total number of rotations is only 5 in the forward direction. Therefore, this invention can effectively reduce the number of rotations required for the wires through this method.

[0014] Furthermore, the number of turns in which the first connecting wire and the second connecting wire twist in opposite directions is between 1 / 3 and 1 / 2 of the number of turns required for the curtain to unfold. In practical applications, those skilled in the art can set the number of turns in which the first connecting wire and the second connecting wire twist in opposite directions as needed, which is something that those skilled in the art can easily conceive of.

[0015] Furthermore, the rotating tube is equipped with a connecting block and a supporting block;

[0016] The connecting block is provided with a first connecting hole, a second connecting hole and a first groove, and the supporting block is provided with a second groove;

[0017] After the first connecting wire and the second connecting wire twist in opposite directions, the first connecting wire passes through the first connecting hole and the second groove on the support block in sequence, and then exits the rotating tube through the through hole provided on one side of the rotating tube, and is wrapped around the rotating tube together with the curtain.

[0018] After passing through the second through hole of the connecting block, the second connecting wire passes through the first groove on the connecting block in the opposite direction, exits the rotating tube through the through hole provided on the other side of the rotating tube, and is wrapped around the rotating tube together with the curtain;

[0019] The ends of the first and second connecting wires are connected to the audio-visual intelligent control device inside the lower rod of the screen. The connecting block and support block set inside the rotating tube can fix and support the first and second connecting wires, thereby facilitating the routing of the first and second connecting wires inside the rotating tube.

[0020] Furthermore, the rotating tube is provided with a wire pressing block at the through hole for pressing the wire. The wire pressing block allows the wire to be wound better on the rotating tube.

[0021] Furthermore, the wires pass through the edges of the left and right sides of the curtain at multiple points between the housing and the lower curtain rod, creating tension on the curtain in the left and right directions to keep the curtain flat.

[0022] Furthermore, the wire is connected to the lower rod of the curtain by a tension spring to ensure that the wire maintains appropriate tension during the unfolding and rewinding of the curtain, thus preventing the wire from tangling or being damaged.

[0023] Furthermore, the lower rod of the curtain is equipped with a guide wheel. The wire passes around the guide wheel and is connected to a tension spring. The guide wheel allows the wire to be rotated before installation, which is simple and convenient.

[0024] Furthermore, the conductor is an electrical wire and / or a data cable capable of transmitting data and signals, and the audio-visual intelligent control device is one or more of a speaker, recorder, video recorder, control receiver, or video conferencing equipment. In practical applications, the corresponding audio-visual intelligent control device can be placed in the pole under the screen as needed, all of which are readily conceived by those skilled in the art.

[0025] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0026] The electric projection screen with audio-visual intelligent control device disclosed in this utility model achieves better audio and video effects by placing the audio-visual intelligent control device on the lower rod of the screen, making it horizontal with the audience's auditory and visual position. In order to facilitate the winding and unwinding of the wires, the wires are connected to the power supply device and / or communication device, and then the wires are inserted into the rotating tube through the hole of the rotating tube component, and then exited through the through hole provided on the rotating tube, and wound together with the screen on the rotating tube, thereby realizing the winding of the wires and the screen. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the structure of the electric projection screen with audio and video intelligent control device after it is rolled up, according to this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of an electric projection screen with audio-visual intelligent control equipment when the screen is rolled up and the housing is removed.

[0029] Figure 3 This is a schematic diagram of the structure of the electric projection screen with audio and video intelligent control device when the screen is unfolded, according to this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of the present invention, in which the guide wheel and tension spring are set on the lower rod of the curtain.

[0031] Figure 5 This is a schematic diagram of the structure of the present invention, in which the guide wheel and tension spring are set on the lower rod of the curtain at another angle.

[0032] Figure 6 This is an enlarged view of the structure of the present invention, in which the tension spring and guide wheel are mounted on the lower rod of the curtain.

[0033] Figure 7 This is an enlarged view of the structure of this utility model, showing the tension spring and guide wheel set on the lower rod of the curtain at another angle.

[0034] Figure 8 This is a schematic diagram of the structure of the electric projection screen with audio and video intelligent control equipment after the shell is removed and the screen is unfolded in this utility model.

[0035] Figure 9 This is an enlarged view of the rotating tube connected to the housing via a rewinding motor in this utility model.

[0036] Figure 10 This is an enlarged view of the rotating tube connected to the housing shaft via the rotating tube component in this utility model.

[0037] Figure 11 This is a schematic diagram of the structure of the electric projection screen with audio and video intelligent control equipment after the screen is removed, according to this utility model.

[0038] Figure 12 This is a schematic diagram of the structure of the electric projection screen with audio and video intelligent control equipment after the screen and rotating pipe have been removed.

[0039] Figure 13 This is a schematic diagram of the electric projection screen with audio and video intelligent control equipment from another angle after the screen and rotating pipe have been removed.

[0040] Figure 14This is a cross-sectional view of an electric projection screen with audio-visual intelligent control equipment, as described in this utility model.

[0041] Figure 15 This is an enlarged view of the structure of the first connecting wire and the second connecting wire in this utility model when they are twisted in opposite directions.

[0042] Figure 16 This is an enlarged view of the structure of the first connecting wire and the second connecting wire when they are twisted in opposite directions at another angle in this utility model.

[0043] Figure 17 This is a cross-sectional view of the first connecting wire and the second connecting wire passing through the rotating tube component in this utility model.

[0044] Figure 18 This is an enlarged view of the structure of the first connecting wire passing through the support block in this utility model.

[0045] In the diagram, 1 is the housing, 2 is the rotating tube, 3 is the screen, 4 is the lower rod of the screen, 5 is the rewind motor, 6 is the rotating tube component, 7 is the wire, 8 is the power supply device, 9 is the rotating shaft, 10 is the hole, 11 is the through hole, 12 is the audio-visual intelligent control device, 13 is the first connecting wire, 14 is the second connecting wire, 15 is the connecting block, 16 is the support block, 17 is the first connecting hole, 18 is the second connecting hole, 19 is the first groove, 20 is the second groove, 21 is the wire pressing block, 22 is the tension spring, and 23 is the guide wheel. Detailed Implementation

[0046] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0048] like Figure 1-3As shown, an electric projection screen with audio-visual intelligent control equipment includes a housing 1, a rotating tube 2, a screen 3, and a lower screen rod 4. One end of the rotating tube 2 along its length is connected to the housing 1 via a rewind motor 5, and the other end is connected to the housing 1 shaft via a rotating tube component 6. The upper end of the screen 3 is connected to the rotating tube 2 and can be wound around the rotating tube 2 as it rotates. The lower end of the screen 3 is connected to the lower screen rod 4. The housing 1 is provided with a power supply device 8 and / or a communication device with a wire 7. After one end of the wire 7 is connected to the power supply device 8 and / or the communication device, it enters the rotating tube 2 through a conductive slip ring on the rotating shaft 9 of the rotating tube component 6 or through a hole 10 built into the rotating shaft 9 of the rotating tube component 6. Then, it passes through a through hole 11 provided on the rotating tube 2 and is wound around the rotating tube together with the screen 3. 2. The other end of the wire 7 is connected to the lower rod 4 of the curtain. The lower rod 4 of the curtain is equipped with an audio-visual intelligent control device 12. The audio-visual intelligent control device 12 is connected to the power supply device 8 and / or communication device on the housing 1 through the wire 7. This utility model achieves better audio and video effects by setting the audio-visual intelligent control device 12 on the lower rod 4 of the curtain so that it is horizontal with the audience in terms of auditory and visual position. In order to facilitate the winding and lowering of the wire 7, after the wire 7 is connected to the power supply device 8 and / or communication device, the wire 7 enters the rotating tube 2 through the hole 10 of the rotating shaft 9 of the rotating tube component 6, and then passes out of the rotating tube 2 through the through hole 11 provided on the rotating tube 2, and is wound together with the curtain 3 on the rotating tube 2, thereby realizing the winding of the wire 7 and the curtain 3.

[0049] like Figure 4-7As shown, the through hole 11 for the wire to pass through from inside the rotating tube 2 to outside the rotating tube 2 is located near the left and right edges of the curtain 3. Because the through hole 11 is located near the left and right edges of the curtain 3, the wire 7, after passing through the rotating tube 2, can pass through the curtain 3 multiple times and be fixed to both sides of the lower curtain rod 4, facilitating the connection between the wire 7 and the curtain 3 and the lower curtain rod 4. In this invention, the wire 7 includes a first connecting wire 13 and a second connecting wire 14. During the rotation of the rotating tube 2, the first connecting wire 13 and the second connecting wire 14 twist in opposite directions. Because the first connecting wire 13 and the second connecting wire 14 twist in opposite directions, the twisting... The purpose of the rotation is to reduce the number of rotations of the wire 7. For example, taking a 100-inch electric projection screen as an example, its total height is about 1.8 meters. When the screen 3 is opened, the rotating tube 2 needs to rotate about 10 times. If it rotates 5 times in the opposite direction first, then the total number of rotations is only 5 in the forward direction. Therefore, this utility model can effectively reduce the number of rotations required for the wire 7 through this method. The number of rotations of the first connecting wire 13 and the second connecting wire 14 in opposite directions is between 1 / 3 and 1 / 2 of the number of rotations required for the screen 3 to unfold. In practical applications, those skilled in the art can set the number of rotations of the first connecting wire 13 and the second connecting wire 14 in opposite directions as needed, which are all things that those skilled in the art can easily think of.

[0050] like Figure 8-18 As shown, a connecting block 15 and a supporting block 16 are provided inside the rotating tube 2; the connecting block 15 is provided with a first connecting hole 17, a second connecting hole 18, and a first groove 19, and the supporting block 16 is provided with a second groove 20; after the first connecting wire 13 and the second connecting wire 14 are twisted in opposite directions, the first connecting wire 13 passes through the first connecting hole 17 and the second groove 20 on the supporting block 16 in sequence, and then exits the rotating tube 2 through the through hole 11 provided on one side of the rotating tube 2, and is wound around the rotating tube 2 together with the curtain 3; the second connecting wire 14 passes through the second connecting hole 18 of the connecting block 15 and then... Then, it passes through the first groove 19 on the connecting block 15 in the opposite direction, and exits the rotating tube 2 through the through hole 11 on the other side of the rotating tube 2, and is wound around the rotating tube 2 together with the screen 3; the ends of the first connecting wire 13 and the second connecting wire 14 are connected to the audio-visual intelligent control device 12 in the lower rod 4 of the screen. Through the connecting block 15 and the supporting block 16 set in the rotating tube 2, the first connecting wire 13 and the second connecting wire 14 can be fixed and supported for guiding and connecting, thereby facilitating the routing of the first connecting wire 13 and the second connecting wire 14 in the rotating tube 2.

[0051] In this invention, a pressure block 21 for pressing the wire 7 is provided at the through hole 11 of the rotating tube 2. The pressure block 21 allows the wire 7 to be better wound onto the rotating tube 2. The wire 7 passes through the edges of the left and right sides of the curtain 3 at multiple points between the housing 1 and the lower curtain rod 4, creating tension in the left-right direction of the curtain 3 to keep it flat. Furthermore, the wire 7 is connected to the lower curtain rod 4 by a tension spring 22 to ensure that the wire 7 maintains appropriate tension during the unfolding and rewinding of the curtain 3, preventing the wire 7 from tangling or being damaged. The lower rod 4 is equipped with a guide wheel 23. The wire 7 passes around the guide wheel 23 and is connected to the tension spring 22. The guide wheel 23 allows the wire 7 to be rotated before installation, which is simple and convenient. In this utility model, the wire 7 is an electric wire and / or a data cable that can conduct data and signals. The audio and video intelligent control device 12 is one or more of a speaker, recorder, video recorder, control receiver, or video conferencing equipment. In practical applications, the corresponding audio and video intelligent control device 12 can be placed in the lower rod 4 as needed, which are all readily conceived by those skilled in the art.

[0052] Example 1

[0053] In this embodiment, the audio-visual intelligent control device is a speaker. When people watch TV, movies, or recorded videos indoors, the speaker inside the rod under the screen can emit sound synchronously. Since the speaker is positioned at the same level as people's ears, people can obtain better audio effects when watching movies.

[0054] Since the speakers are housed inside the lower rod of the curtain, and the power supply and / or communication devices are mounted on the housing, the power supply and / or communication devices are connected to the speakers via wires. In this embodiment, to facilitate the winding and unwinding of the wires, after connecting the wires to the power supply and / or communication devices, the wires are inserted into the rotating tube through the hole in the rotating tube component's shaft, then exit through the through-hole on the rotating tube, and finally wound around the rotating tube together with the curtain. This achieves the winding of the wires and the curtain. Furthermore, a connection is used between the first and second connecting wires. The purpose of the reverse twisting method is to reduce the number of rotations of the wire. For example, taking a 100-inch electric projection screen as an example, its total height is about 1.8 meters. When the screen is opened, the rotating tube needs to rotate about 10 times. If it rotates 5 times in the opposite direction first, then the total number of rotations is only 5 in the forward direction. Therefore, this utility model can effectively reduce the number of rotations required for the wire through this method. In this embodiment, the wire is connected to the lower rod of the screen by a tension spring to ensure that the wire maintains appropriate tension during the unfolding and rewinding of the screen, and to avoid the wire from getting tangled or damaged.

[0055] Example 2

[0056] Unlike Embodiment 1, in this embodiment, the audio and video intelligent control device is a recorder. By placing the recorder on the lower pole of the screen, the recorder can effectively record what the speaker says during the meeting because it is at the same level as the speaker.

[0057] Example 3

[0058] Unlike Embodiment 1, in this embodiment, the audio and video intelligent control device is a video recorder. In some large conferences, by installing a video recorder on the pole below the screen, the entire conference can be recorded, thereby reducing the number of video recorders that need to be configured separately at the conference site.

[0059] Example 4

[0060] Unlike Embodiment 1, in this embodiment, the audio-visual intelligent control device is a control receiver. By placing the control receiver on the lower pole of the screen, the control distance between the remote control and the audio-visual intelligent control device can be shortened, thereby facilitating the raising and lowering control of the projection screen.

[0061] Example 5

[0062] Unlike Embodiment 1, in this embodiment, the audio and video intelligent control device is a video conferencing device. By setting up the video conferencing device on the lower pole of the screen, people can simultaneously project courseware onto the projection screen and conduct remote video conferencing through the video conferencing device inside the lower pole of the screen to meet people's needs.

[0063] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An electric projection screen with audio-visual intelligent control equipment, comprising a housing, a rotating tube, a screen, and a lower screen rod, characterized in that: One end of the rotating tube along its length is connected to the housing via a rewind motor, and the other end is connected to the housing shaft via a rotating tube assembly; The upper end of the curtain is connected to the rotating tube and can be wound around the rotating tube as it rotates; the lower end of the curtain is connected to the lower curtain rod. The housing is equipped with a power supply device and / or communication device with a wire. One end of the wire is connected to the power supply device and / or communication device, and then enters the rotating tube through the conductive slip ring on the rotating shaft of the rotating tube component or the hole built into the rotating shaft of the rotating tube component. The wire then passes out of the rotating tube through the through hole provided on the rotating tube and is wound around the rotating tube together with the curtain. The other end of the wire is connected to the lower rod of the curtain. The lower rod of the curtain is equipped with an audio-visual intelligent control device, which is connected to a power supply device and / or communication device on the housing via wires.

2. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The location of the through hole for the wire to pass from inside the tube to outside the tube is near the left and right edges of the curtain.

3. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The conductor includes a first connecting conductor and a second connecting conductor. During the rotation of the rotating tube, the first connecting conductor and the second connecting conductor twist in opposite directions.

4. The electric projection screen with audio-visual intelligent control device according to claim 3, characterized in that: The number of turns in which the first connecting wire and the second connecting wire twist in opposite directions is between 1 / 3 and 1 / 2 of the number of turns required for the curtain to unfold.

5. The electric projection screen with audio-visual intelligent control device according to claim 3, characterized in that: The rotating pipe is equipped with a connecting block and a supporting block; The connecting block is provided with a first connecting hole, a second connecting hole and a first groove, and the supporting block is provided with a second groove; After the first connecting wire and the second connecting wire twist in opposite directions, the first connecting wire passes through the first connecting hole and the second groove on the support block in sequence, and then passes out of the rotating tube through the through hole provided on one side of the rotating tube, and is wrapped around the rotating tube together with the curtain. After passing through the second through hole of the connecting block, the second connecting wire passes through the first groove on the connecting block in the opposite direction, exits the rotating tube through the through hole provided on the other side of the rotating tube, and is wrapped around the rotating tube together with the curtain; The ends of the first and second connecting wires are connected to the audio-visual intelligent control device inside the lower pole of the screen.

6. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The rotating tube is equipped with a wire clamping block at the through hole for clamping the wire.

7. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The wires pass through the edges of the left and right sides of the curtain at multiple points between the housing and the lower rod of the curtain, creating tension in the left and right directions of the curtain to keep the curtain flat.

8. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The wire is connected to the lower rod of the curtain by a tension spring to ensure that the wire maintains appropriate tension during the unfolding and rewinding of the curtain, and to prevent the wire from getting tangled or damaged.

9. The electric projection screen with audio-visual intelligent control device according to claim 8, characterized in that: The lower rod of the curtain is equipped with a guide wheel, and the wire passes around the guide wheel and is connected to the tension spring.

10. The electric projection screen with audio-visual intelligent control device according to claim 1, characterized in that: The conductor is an electrical wire and / or a data cable capable of conducting data and signals, and the audio and video intelligent control device is one or more of a speaker, recorder, video recorder, control receiver, or video conferencing equipment.

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