A projection device

Abstract

The embodiment of the utility model provides a kind of projection equipment, it is related to projection equipment field.The projection equipment includes projector, curtain and support, the support includes mounting pole and support frame, the mounting pole is located the top of the support frame, the curtain and the projector are respectively with the both ends of the mounting pole detachably connected;Wherein, the projector is used to and terminal equipment connection, and the projection data of terminal equipment is used to be transmitted to the projector by the mode of wired connection or wireless connection, and finally form projection picture on the curtain.The projector and curtain are integrally arranged on the mounting pole of the support, and only need to move the support frame to drive the mounting pole to move, so that the projector and the curtain can be moved as a whole, which is convenient to move and can change the use scene at any time, realizing free viewing.In addition, it is no longer necessary to open a member of video software, which reduces the use cost of users, is more flexible to use, and improves the use experience.

Description

Technical Field

[0001] This utility model relates to the field of projection equipment technology, and more specifically, to a projection device. Background Technology

[0002] Currently, projection technology is widely used in e-sports entertainment, education, and home entertainment. However, most projectors and projector screens on the market are fixed in one location, making it difficult to move them to different viewing locations and hindering users' flexibility in meeting their viewing needs. Common projection equipment is designed for fixed installation, typically requiring a relatively flat and stable wall or screen as the projection surface. If users want to change the viewing location, they need to readjust the device position, calibrate the screen size, and align it, which is not only time-consuming and laborious but also affects the viewing experience. Especially in outdoor activities or impromptu gatherings, users crave the convenience of setting up a viewing environment, but the fixed nature of the equipment often fails to meet this need, thus limiting the application scope of projection technology and users' viewing freedom. Furthermore, most existing projectors require the installation of multiple video software programs to play videos and music from different platforms, and often require subscriptions to different video software for smooth viewing, increasing the user's cost.

[0003] Therefore, the installation mode of existing projector equipment hinders its flexibility and convenience to some extent, affecting the user experience; and the need to install different video software and purchase different video software memberships increases the user's cost. Utility Model Content

[0004] This invention provides a projection device that allows for flexible installation and fixation of the projector, enabling it to be used in more diverse scenarios, improving ease of use and flexibility. Furthermore, the projector can be connected to terminal devices for even greater convenience.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a projection device, which includes:

[0007] The projector, screen, and bracket, wherein the bracket includes a mounting rod and a support frame, the mounting rod is located at the top of the support frame, and the screen and the projector are detachably connected to both ends of the mounting rod, respectively.

[0008] The projector is used to connect to a terminal device, and the projection data of the terminal device is transmitted to the projector via a wired or wireless connection, and finally forms a projected image on the screen.

[0009] Optionally, the projector includes an optical device, a connecting device, and a control device, wherein the optical device and the control device are connected through the connecting device, and the optical device and the control device are separately configured.

[0010] Optionally, the control device includes a power module, a main control module, a communication module, a charging module, and an interface module.

[0011] Optionally, the power module is connected to the main control module, and the communication module is electrically connected to the main control module. The communication module is used to acquire projection data sent by the terminal device and transmit it to the main control module. The charging module is connected to the power module and is used to provide power to the power module without an external power cord. The interface module is connected to both the power module and the main control module. The interface module is used to provide power to the power module through an external power cord and also to provide interactive data to the main control module.

[0012] Optionally, the power module includes an output unit and an input unit. The input unit is used to acquire electrical energy from an external power source, and the output unit is used to store the electrical energy acquired by the input unit or to output the electrical energy acquired by the input unit to the main control module, the communication module, the charging module, the interface module, and the projector, respectively.

[0013] Optionally, the main control module includes a parsing unit and a correction unit. The parsing unit is used to parse and convert the projection data received from the terminal device and output the parsed and converted projection data to the projector for projection. The correction unit is used to perform automatic keystone correction on the projected image.

[0014] Optionally, the optical device includes a projection module, an outer cover, and a heat sink. The projection module and the heat sink are both disposed inside the outer cover. The outer cover is connected to the connecting device. The projection module is connected to the output unit of the power module. The projection module is also connected to the main control module.

[0015] Optionally, the projection module includes a lens and a light receiving cavity, the entrance of which corresponds to the position of the lens, and the light receiving cavity is used to propagate the light emitted by the lens.

[0016] Optionally, the connecting device is a connecting shell, which has a hollow structure and both ends are open. The optical device and the control device communicate with each other through a data line inside the connecting shell.

[0017] Optionally, the bracket further includes a clamp, which is connected to the end of the mounting rod near the projector, and the clamp is engaged with the projector.

[0018] Optionally, the bracket further includes a support rod, the mounting rod having a receiving groove along its length, the support rod being disposed in the receiving groove, and one end of the support rod being rotatably connected to the mounting rod, the support rod being used to connect to the curtain when it leaves the receiving groove, so as to support the curtain.

[0019] Optionally, the support frame includes a sleeve rod and a tripod, the top end of the sleeve rod being rotatably connected to the mounting rod, and the bottom end of the sleeve rod being connected to the tripod.

[0020] Optionally, the bracket further includes a support rod, the sleeve rod having a movable groove along its length, one end of the support rod being connected to the mounting rod, and the other end of the support rod being slidably disposed in the movable groove.

[0021] Optionally, the tripod is provided with casters at the bottom.

[0022] The beneficial effects of the projection device according to the embodiments of this utility model include, for example:

[0023] This projection device includes a projector, a screen, and a stand. The stand includes a mounting rod and a support frame. The mounting rod is located at the top of the support frame. The screen and the projector are detachably connected to both ends of the mounting rod. The projector is used to connect to a terminal device. The projection data from the terminal device is transmitted to the projector via a wired or wireless connection and ultimately projected onto the screen. In use, the projector and screen are integrated on the mounting rod of the stand. The projector and screen work together to enable projection anytime, anywhere. When the projection device needs to be moved, simply move the support frame to move the mounting rod, and the projector and screen can be moved as a whole. This is convenient and allows for easy changes in usage scenarios, enabling flexible viewing. Furthermore, the projector can connect to a terminal device, and the projection data from the terminal device can be directly transmitted to the projector via a wired or wireless connection and ultimately projected onto the screen. This eliminates the need for separate video software subscriptions, reducing user costs, making it more flexible, and improving the user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the projection device provided in this embodiment in the open state from a first-view perspective;

[0026] Figure 2 This is a schematic diagram of the projection device provided in this embodiment in the open state, showing a second perspective.

[0027] Figure 3 This is a schematic diagram of the projector provided in this embodiment;

[0028] Figure 4 This is a schematic diagram of the optical device provided in this embodiment;

[0029] Figure 5 This is a schematic diagram of the control device provided in this embodiment;

[0030] Figure 6 This is a schematic diagram of the projection device provided in this embodiment in the open state from a third-view perspective;

[0031] Figure 7 This is a schematic diagram of the fourth perspective of the projection device provided in this embodiment when it is in the open state.

[0032] Icons: 10-Projector; 11-Optical device; 111-Projection module; 112-Outer casing; 113-Heat sink; 114-Light receiving cavity; 12-Connection device; 13-Control device; 131-Power module; 1311-Output unit; 1312-Input unit; 132-Main control module; 1321-Resolution unit; 1322-Correction unit; 133-Communication module; 134-Charging module; 135-Interface module; 20-Screen; 21-Screen body; 30-Bracket; 31-Mounting rod; 301-Receiving slot; 32-Support frame; 321-Sleeve rod; 322-Tripod; 33-Support rod; 34-Support rod; 35-Clamp; 101-Terminal equipment. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0039] Currently, projection technology is widely used in e-sports entertainment, education, and home entertainment. However, most projectors and projector screens on the market are fixed in one location, making it difficult to move them to different viewing locations and hindering users' flexibility in meeting their viewing needs. Common projection equipment is designed for fixed installation, typically requiring a relatively flat and stable wall or screen as the projection surface. If users want to change the viewing location, they need to readjust the device position, calibrate the screen size, and align it, which is not only time-consuming and laborious but also affects the viewing experience. Especially in outdoor activities or impromptu gatherings, users crave the convenience of setting up a viewing environment, but the fixed nature of the equipment often fails to meet this need, thus limiting the application scope of projection technology and users' viewing freedom. Furthermore, most existing projectors require the installation of multiple video software programs to play videos and music from different platforms, and often require subscriptions to different video software for smooth viewing, increasing the user's cost.

[0040] Therefore, the installation mode of existing projector equipment hinders its flexibility and convenience to some extent, affecting the user experience; and the need to install different video software and purchase different video software memberships increases the user's cost.

[0041] Please refer to Figures 1-7 This embodiment provides a projection device that can effectively improve the aforementioned technical problems. It allows for flexible installation and fixing of the projector 10, making it applicable in more diverse scenarios, improving ease of use and flexibility. Furthermore, the projector 10 can be connected to the terminal device 101 for even greater convenience.

[0042] The projection device includes a projector 10, a screen 20, and a bracket 30. The bracket 30 includes a mounting rod 31 and a support frame 32. The mounting rod 31 is located at the top of the support frame 32. The screen 20 and the projector 10 are detachably connected to both ends of the mounting rod 31. The projector 10 is used to connect to a terminal device 101. The projection data of the terminal device 101 is transmitted to the projector 10 via a wired or wireless connection and finally forms a projected image on the screen 20.

[0043] In this embodiment, the terminal device 101 is a mobile phone. The mobile phone and the projector 10 are connected wirelessly. After connection, the playback screen of the video software on the mobile phone can be wirelessly projected to the projector 10, and finally projected onto the screen 20. Of course, the mobile phone and the projector 10 can also be connected via a wired connection. In other embodiments, the terminal device 101 can also be a tablet or a smart wearable device. No specific limitation is made here.

[0044] Specifically, turn on the projector 10 and the mobile phone's Bluetooth, search for the projector 10's Bluetooth signal, and pair the mobile phone's Bluetooth with the projector 10's Bluetooth signal to achieve the connection between the mobile phone and the projector 10. The video decoder on the mobile phone transmits the digital image signal to the projector 10's communication module 133 via Bluetooth. After the communication module 133 obtains the digital image signal, it transmits it to the main control module 132 for parsing and correction. Then, the parsed and converted digital image signal is sent to the projector 10's projection module 111 for projection.

[0045] Furthermore, the mobile phone can also be wired to the interface module 135 of the projector 10 via a data cable. The video decoder on the mobile phone transmits the digital image signal to the interface module 135 via the data cable. The interface module 135 then transmits the digital image signal to the main control module 132 for analysis and correction. Finally, the analyzed and converted digital image signal is sent to the projection module 111 of the projector 10 for projection.

[0046] In this embodiment, the projector 10 includes an optical device 11, a connecting device 12, and a control device 13. The optical device 11 and the control device 13 are connected via the connecting device 12, and are separately configured. This separate connection between the optical device 11 and the control device 13 increases the distance between them, minimizing the impact of heat generated by the optical device 11 during operation on the normal operation of the control device 13.

[0047] Specifically, the optical device 11, the connecting device 12, and the control device 13 can form an I-shaped structure together, or they can form a Z-shaped structure together, without any specific limitations.

[0048] In this embodiment, the optical device 11 and the control device 13 form a top-bottom split structure via the connecting device 12. The control device 13 serves as a base to support the optical device 11 and the connecting device 12. The optical device 11 being positioned above the control device 13 minimizes the obstruction of the projector 10's view to the user, thus improving the user experience. In other embodiments, the optical device 11 and the control device 13 can also form a left-right split structure via the connecting device 12; no specific limitation is made here.

[0049] It should be noted that the control device 13 includes a power module 131, a main control module 132, a communication module 133, a charging module 134, and an interface module 135. The power module 131 is connected to the main control module 132, and the communication module 133 is electrically connected to the main control module 132. The charging module 134 is connected to the power module 131 and is used to provide power to the power module 131 without an external power cord. The interface module 135 is connected to both the power module 131 and the main control module 132. The interface module 135 is used to provide power to the power module 131 through an external power cord, and it is also used to provide interactive data to the main control module 132.

[0050] Specifically, the power module 131 includes an output unit 1311 and an input unit 1312. The input unit 1312 is used to acquire electrical energy from an external power source, and the output unit 1311 is used to store the electrical energy acquired by the input unit 1312 or to output the electrical energy acquired by the input unit 1312 to the main control module 132, the communication module 133, the charging module 134, the interface module 135, and the projection module 111 of the projector 10.

[0051] The main control module 132 includes a parsing unit 1321 and a correction unit 1322. The parsing unit 1321 is used to parse and convert the projection data received from the terminal device 101 and output the parsed and converted projection data to the projector 10 for projection. The correction unit 1322 is used to calculate the posture that needs to be corrected based on optical principles by projecting a pre-designed feature map, thereby realizing automatic keystone correction of the projected image.

[0052] Specifically, the depth image captured by the camera in the projector 10 is obtained. Based on the depth image and the maximum projection angle of the projector 10 in the vertical direction and the maximum projection angle in the horizontal direction, the relative positional relationship between the projection plane and the projector 10 is determined. Based on the relative positional relationship between the projection plane and the projector 10, the projected image projected onto the projection plane is rectangularly corrected.

[0053] During operation, when the distance between the terminal device 101 and the projector 10 reaches the projection threshold, the terminal device 101 can connect to the projector 10 via the network. The communication module 133 will obtain the projection data sent by the terminal device 101 through the network and transmit the projection data to the main control module 132. After processing the projection data, the main control module 132 will transmit the processed projection data to the projector 10. The light emitted by the projector 10 will be projected onto the screen 20, ultimately forming a projected image. In addition, after the terminal device 101 and the projector 10 are connected, the terminal device 101 can control the projector 10 to turn it on and off, switch videos, or adjust the volume, enabling comfortable viewing. Of course, a remote control can also be set up. The remote control sends a remote control signal to the projector 10 via infrared or radio frequency technology. After receiving the remote control signal, the projector 10 automatically recognizes the corresponding remote control command and then executes the corresponding remote control command operation.

[0054] Furthermore, the control device 13 also includes a housing, in which the power module 131, main control module 132, communication module 133, charging module 134, and interface module 135 are all installed. Specifically, the power module 131, main control module 132, charging module 134, and communication module 133 are installed inside the housing, while the interface module 135 is installed on the side wall of the housing.

[0055] To prevent overheating of the control device 13 during operation and thus ensure its normal operation, the control device 13 further includes a first heat dissipation structure. This first heat dissipation structure is installed inside the housing and is used to dissipate heat from the power module 131, main control module 132, communication module 133, charging module 134, and interface module 135. Specifically, the first heat dissipation structure is a fan. In other embodiments, the first heat sink may also be a heat dissipation fin, which is not specifically limited here.

[0056] Furthermore, the control device 13 also includes a speaker, which is connected to the main control module 132. The speaker's data cable communicates with the main control module 132, enabling the speaker to convert electrical signals into sound signals, thereby emitting sound.

[0057] Furthermore, the sidewalls of the housing are provided with several sound outlets for transmitting audio emitted by the speaker. Some of these sound outlets are configured as dense holes to play back the audio emitted by the speaker.

[0058] In this embodiment, the optical device 11 includes a projection module 111, an outer cover 112, and a heat sink 113. The projection module 111 and the heat sink 113 are both disposed inside the outer cover 112. The outer cover 112 is connected to the connecting device 12. The projection module 111 is connected to the output unit 1311 of the power module 131. The projection module 111 is also connected to the main control module 132.

[0059] It should be noted that the projection module 111 includes a lens and a light receiving cavity 114. The entrance position of the light receiving cavity 114 corresponds to the position of the lens, and the light receiving cavity 114 is used to propagate the light emitted by the lens. The lens can capture images and magnify them for projection onto the screen 20, while the light receiving cavity 114 can concentrate the light emitted by the lens, thereby ensuring the clarity of the projected image.

[0060] In this embodiment, the connecting device 12 is a connecting shell with a hollow structure and openings at both ends. The optical device 11 and the control device 13 communicate via data lines inside the connecting shell. The data lines of the optical device 11 can pass through the inside of the connecting shell to reach the control device 13, and similarly, the data lines of the control device 13 can pass through the inside of the connecting shell to reach the optical device 11. This enables communication between the optical device 11 and the control device 13, resulting in a neat and aesthetically pleasing overall appearance of the projector 10 and improved user comfort.

[0061] In this embodiment, the connecting shell is made of plastic. In other embodiments, the connecting shell may also be made of metal or other materials, and no specific limitation is made here.

[0062] In this embodiment, the support frame 32 includes a sleeve rod 321 and a tripod 322. The top end of the sleeve rod 321 is rotatably connected to the mounting rod 31, and the bottom end of the sleeve rod 321 is connected to the tripod 322. The top end of the sleeve rod 321 and the mounting rod 31 are rotatably connected via a pivot. The sleeve rod 321 is erected vertically, integrating the screen 20 and projector 10 onto the mounting rod 31, reducing the overall size of the projection equipment and facilitating its handling and movement. When it is necessary to move the projection equipment, the entire projection equipment can be moved simply by moving the support frame 32. This convenient operation adapts to more diverse usage scenarios, offering greater freedom of choice and enabling comfortable viewing, thus enhancing the user experience.

[0063] In this embodiment, the mounting rod 31 can rotate 0°-340° around the axis of rotation. Generally, when the mounting rod 31 supports the projector 10 and the screen 20 for projection, the angle between the mounting rod 31 and the sleeve rod 321 is 100°-120°. In actual use, it can be adjusted according to the usage scenario, and no specific limitation is made here.

[0064] It should also be noted that the bracket 30 further includes a clamp 35, which is connected to the end of the mounting rod 31 near the projector 10. The clamp 35 includes a connecting part and a clamp body. The connecting part is a rod-shaped structure, and its two ends are respectively connected to the mounting rod 31 and the clamp body. The clamp body is snapped into the outside of the connecting shell, thereby realizing the connection between the projector 10 and the mounting rod 31.

[0065] Furthermore, in order to further adjust the light emission angle of the projector 10, the ends of the connecting part and the mounting rod 31 can be connected by a pivot.

[0066] Furthermore, to make it easier to move the projection equipment, the tripod 322 is equipped with casters at the bottom.

[0067] In addition, the bracket 30 also includes a support rod 33. The sleeve rod 321 has a moving groove along its length. One end of the support rod 33 is connected to the mounting rod 31, and the other end of the support rod 33 is slidably disposed in the moving groove.

[0068] To ensure that the strut 33 can be temporarily fixed in the moving groove, a limiting member is provided in the moving groove to limit the end of the strut 33.

[0069] In this embodiment, the screen 20 includes a screen body 21, which is a square soft cloth structure.

[0070] It should also be noted that, since the screen body 21 is a flexible structure, the bracket 30 also includes a support rod 34 to support it. The mounting rod 31 has a receiving groove 301 along its length, and the support rod 34 is positioned within the receiving groove 301. One end of the support rod 34 is rotatably connected to the mounting rod 31. The support rod 34 is used to connect to the screen body 21 when it is away from the receiving groove 301 to support the screen body 21. One end of the support rod 34 is connected to the end wall of the receiving groove 301 via a pivot. When the projection device is retracted, the support rod 34 is stored within the receiving groove 301. When projection is needed, the support rod 34 rotates around the pivot, thus leaving the receiving groove 301. When the support rod 34 moves to a vertical position, the screen body 21 is hung on the top of the support rod 34, thereby supporting the screen body 21. This ensures that the projected image on the screen body 21 and the light emitted by the projector 10 are in complete contact, thus ensuring the projection effect. At the same time, adjusting the angle between the screen body 21 and the mounting rod 31 can also adjust the screen body 21 to the optimal viewing angle, thereby improving the viewing experience.

[0071] In addition, the curtain 20 also includes a retraction component, which is connected to the curtain body 21 and used to retract the curtain body 21. Specifically, the retraction component includes a retraction box, a retraction motor, and a curtain shaft. The retraction box is installed at the top of the curtain body 21, and the curtain shaft is connected to the retraction motor. Both the curtain shaft and the retraction motor are installed in the retraction box. The curtain shaft rotates under the drive of the retraction motor, thereby rolling up the curtain body 21 to avoid dust.

[0072] It should be noted that the mounting rod 31 has a storage cavity inside, which is connected to one end of the mounting rod 31. The screen body 21 can be stored in the recycling box, which can be inserted into the storage cavity for storage. This allows the screen 20 to be directly stored inside the mounting rod 31, facilitating subsequent installation, use, and storage, making it more convenient to use. With the screen 20 stored in the storage cavity and the support rod 34 stored in the receiving slot 301, the screen 20 and support rod 34 can be taken out immediately when projection is needed, allowing for quick projection.

[0073] Furthermore, to prevent the curtain body 21 from failing to retract in the event of a power outage, the retraction component in this embodiment also includes a manual pulley and a rope. The manual pulley is installed inside the recycling box and is connected to the end of the curtain 20 shaft. The rope is set vertically and is connected to the manual pulley. Pulling the rope rotates the manual pulley, thereby driving the curtain 20 shaft to rotate, achieving the purpose of retracting the curtain body 21.

[0074] In summary, this utility model embodiment provides a projection device, which includes a projector 10, a screen 20, and a bracket 30. The bracket 30 includes a mounting rod 31 and a support frame 32. The mounting rod 31 is located at the top of the support frame 32. The screen 20 and the projector 10 are detachably connected to both ends of the mounting rod 31, respectively. The projector 10 is used to connect to a terminal device 101. The projection data of the terminal device 101 is transmitted to the projector 10 via a wired or wireless connection and finally forms a projected image on the screen 20. In use, the projector 10 and screen 20 are integrated on the mounting rod 31 of the bracket 30. The projector 10 and screen 20 work together to enable projection anytime, anywhere. When the projection equipment needs to be moved, simply move the support frame 32 to move the mounting rod 31, and the projector 10 and screen 20 can be moved as a whole. It is easy to move and can change the usage scene at any time to achieve free viewing. In addition, the projector 10 can be connected to the terminal device 101. The projection data of the terminal device 101 can be directly transmitted to the projector 10 through wired or wireless connection and finally projected onto the screen 20. There is no need to open a separate video software membership, which reduces the user's usage cost, makes it more flexible, and improves the user experience.

[0075] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A projection device, characterized in that, include: The projector (10), screen (20) and bracket (30) are provided. The bracket (30) includes a mounting rod (31) and a support frame (32). The mounting rod (31) is located at the top of the support frame (32). The screen (20) and the projector (10) are detachably connected to both ends of the mounting rod (31). The projector (10) is used to connect to the terminal device (101), and the projection data of the terminal device (101) is used to transmit to the projector (10) through wired or wireless connection, and finally form a projected image on the screen (20).

2. The projection device according to claim 1, characterized in that, The projector (10) includes an optical device (11), a connecting device (12), and a control device (13). The optical device (11) and the control device (13) are connected through the connecting device (12), and the optical device (11) and the control device (13) are separately arranged.

3. The projection device according to claim 2, characterized in that, The control device (13) includes a power module (131), a main control module (132), a communication module (133), a charging module (134), and an interface module (135).

4. The projection device according to claim 3, characterized in that, The power module (131) is connected to the main control module (132), and the communication module (133) is electrically connected to the main control module (132). The communication module (133) is used to acquire projection data sent by the terminal device (101) and transmit it to the main control module (132). The charging module (134) is connected to the power module (131) and is used to provide power to the power module (131) without an external power cord. The interface module (135) is connected to both the power module (131) and the main control module (132). The interface module (135) is used to provide power to the power module (131) through an external power cord and is also used to provide interactive data to the main control module (132).

5. The projection device according to claim 3, characterized in that, The power module (131) includes an output unit (1311) and an input unit (1312). The input unit (1312) is used to acquire electrical energy from an external power source. The output unit (1311) is used to store the electrical energy acquired by the input unit (1312) or to output the electrical energy acquired by the input unit (1312) to the main control module (132), the communication module (133), the charging module (134), the interface module (135), and the projector (10), respectively.

6. The projection device according to claim 3, characterized in that, The main control module (132) includes a parsing unit (1321) and a correction unit (1322). The parsing unit (1321) is used to parse and convert the projection data received from the terminal device (101) and output the parsed and converted projection data to the projector (10) for projection. The correction unit (1322) is used to perform automatic keystone correction on the projected image.

7. The projection device according to claim 5, characterized in that, The optical device (11) includes a projection module (111), an outer cover (112), and a heat sink (113). The projection module (111) and the heat sink (113) are both disposed inside the outer cover (112). The outer cover (112) is connected to the connecting device (12). The projection module (111) is connected to the output unit (1311) of the power module (131). The projection module (111) is also connected to the main control module (132).

8. The projection device according to claim 7, characterized in that, The projection module (111) includes a lens and a light receiving cavity (114). The entrance position of the light receiving cavity (114) corresponds to the position of the lens. The light receiving cavity (114) is used to propagate the light emitted by the lens.

9. The projection device according to claim 2, characterized in that, The connecting device (12) is a connecting shell, which is a hollow structure and has openings at both ends. The optical device (11) and the control device (13) communicate with each other through the data line inside the connecting shell.

10. The projection device according to claim 1, characterized in that, The bracket (30) also includes a clamp (35), which is connected to the end of the mounting rod (31) near the projector (10), and the clamp (35) and the projector (10) are engaged.

11. The projection device according to claim 1, characterized in that, The bracket (30) also includes a support rod (34). The mounting rod (31) has a receiving groove (301) along its length. The support rod (34) is disposed in the receiving groove (301), and one end of the support rod (34) is rotatably connected to the mounting rod (31). The support rod (34) is used to connect to the curtain (20) when it leaves the receiving groove (301) to support the curtain (20).

12. The projection device according to claim 11, characterized in that, The support frame (32) includes a sleeve (321) and a tripod (322). The top end of the sleeve (321) is rotatably connected to the mounting rod (31), and the bottom end of the sleeve (321) is connected to the tripod (322).

13. The projection device according to claim 12, characterized in that, The bracket (30) also includes a support rod (33), and the sleeve rod (321) is provided with a moving groove along the length direction. One end of the support rod (33) is connected to the mounting rod (31), and the other end of the support rod (33) is slidably disposed in the moving groove.

14. The projection device according to claim 12, characterized in that, The tripod (322) is equipped with casters at the bottom.

Images