Inflatable frame and projection screen

Abstract

The application discloses an inflatable frame and a projection screen, and the inflatable frame is used for mounting a projection curtain and comprises an inflatable frame body and a mounting structure. The inflatable frame body has an inflatable cavity, and the inflatable frame body is surrounded to form a containing space for containing the projection curtain. The bottom of the inflatable frame body is used for contacting an external bearing surface. The mounting structure is connected to the inflatable frame body, and the mounting structure is used for detachably connecting an external sound box to the mounting structure. According to the embodiment, the mounting structure specially used for mounting the sound box is arranged on the inflatable frame body, and the sound box can be directly hung on the inflatable frame body, so that the portability is improved.

Description

Technical Field

[0001] This application relates to the field of inflatable screen technology, and more particularly to an inflatable frame and projection screen. Background Technology

[0002] Projection screens are typically used with projectors in outdoor activities, mobile offices, or impromptu meetings. To improve portability for outdoor use, inflatable projection screens are generally used. However, in this technology, inflatable projection screens are limited by whether the surrounding environment allows for the placement of additional speakers, which presents significant limitations. Utility Model Content

[0003] This application provides an inflatable frame and projection screen that can directly mount audio equipment, improving portability.

[0004] In a first aspect, embodiments of this application provide an inflatable frame for mounting a projection screen, comprising: An inflatable frame having an inflatable cavity, the inflatable frame enclosing a receiving space for accommodating the projection screen, and the bottom of the inflatable frame for contacting an external bearing surface; A mounting structure is connected to the inflatable frame, the mounting structure being used to detachably connect an external speaker to the mounting structure.

[0005] Secondly, embodiments of this application also provide a projection screen, including a projection screen and an inflatable frame as described in any of the above embodiments, wherein the projection screen is located in the receiving space and is connected to the inflatable frame.

[0006] Based on the inflatable frame and projection screen in this embodiment, this embodiment, by setting a dedicated mounting structure for installing speakers on the inflatable frame, allows speakers to be directly mounted onto the inflatable frame, improving portability. It also avoids the need to carry additional brackets or find space to place the speakers, reducing the complexity and time cost of equipment layout. Multiple mounting structures can be provided to offer installation positions for multiple speakers, thereby optimizing the sound field distribution of multiple speakers, improving audio playback performance, and further enhancing the applicability and flexibility of the inflatable frame. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a first-view structural schematic diagram of the inflatable frame in one embodiment of this application; Figure 2 This is a schematic diagram of the installation structure in one embodiment of this application; Figure 3 This is a first-view cross-sectional structural diagram of the installation structure in one embodiment of this application; Figure 4 This is a cross-sectional second-view structural schematic diagram of the installation structure in one embodiment of this application; Figure 5 This is a schematic diagram of the structure of the inflatable frame and the speaker in another embodiment of this application; Figure 6 This is a second-view structural schematic diagram of the inflatable frame in one embodiment of this application; Figure 7 This is a third-view structural diagram of the inflatable frame in one embodiment of this application; Figure 8 This is a schematic diagram of the projection screen and speaker in one embodiment of this application.

[0009] Figure label: 100. Inflatable frame; 10. Inflatable frame; 11. First upright; 111. Accommodation space; 12. Second upright; 13. Supporting column; 14. Connecting column; 15. Third upright; 16. Fourth upright; 20. Mounting structure; 21. Mounting base; 211. Mounting cavity; 212. Base body; 213. Mounting part; 22. Cover body; 23. Mounting component; 231. Connecting part; 232. Hook; 24. Rotating structure; 241. First part; 242. Second part; 243. Damping component; 30. Speakers; 200. Projection screen; 40. Projection curtain. Detailed Implementation

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0011] Projection screens are typically used with projectors in outdoor activities, mobile offices, or impromptu meetings. To improve portability for outdoor use, inflatable projection screens are often used. However, in this technology, inflatable projection screens are limited by the availability of additional speakers in the surrounding environment. Furthermore, inflatable projection screens still lack stability when used outdoors, making them prone to swaying, deformation, or even collapse, thus affecting the user's viewing experience and the presentation effect.

[0012] Regarding the above situation, firstly, please refer to [link / reference needed]. Figures 1-2 This application proposes a method for mounting a projection screen 40 (such as...). Figure 8 The inflatable frame 100 (shown) includes an inflatable frame body 10 and an mounting structure 20.

[0013] The inflatable frame 10 has an inflation chamber, and the inflatable frame 10 surrounds and forms a receiving space 111 for accommodating the projection screen 40. The bottom of the inflatable frame 10 is for contacting the bearing surface. The mounting structure 20 is connected to the inflatable frame 10, and the mounting structure 20 is used to mount the external speaker 30 (such as...) Figure 5 (As shown) It is detachably connected to the mounting structure 20.

[0014] Specifically, the inflatable frame 100 is formed by filling the inflation chamber with gas, allowing it to stand stably on the external support surface, thus providing support for the projection screen 40. After removing the air from the inflation chamber, the inflatable frame 100 can be quickly folded up for easy carrying and storage. After the speaker 30 is installed on the mounting structure 20, the mounting structure 20 can fix the speaker's position, improving overall portability and functionality. The speaker 30 and the mounting structure 20 can be detachably connected via snaps, magnets, or threads, ensuring the speaker 30 is stable and reliable during use, while also facilitating disassembly and storage.

[0015] It should be noted that this embodiment, by providing a dedicated mounting structure 20 for mounting the speaker 30 on the inflatable frame 10, allows the speaker to be directly mounted onto the inflatable frame 10, improving portability. It also eliminates the need to carry additional brackets or find space to place the speaker, reducing the complexity and time cost of equipment arrangement. The design of the mounting structure 20 can be adjusted according to actual needs. For example, multiple mounting structures 20 can be provided on the inflatable frame 10 to offer multiple mounting positions for multiple speakers and other devices, thereby optimizing the sound field distribution of the speakers and other devices, improving audio playback performance, and further enhancing the applicability and flexibility of the inflatable frame 100.

[0016] In addition, the mounting structure 20 can also be used to connect other electronic devices, such as auxiliary electronic devices 40, such as lighting equipment and cameras, which helps to expand the functionality of the inflatable frame 100 and make it suitable for more scenarios.

[0017] In some embodiments, the inflatable air chamber can be composed of multiple independent chambers, each of which can be isolated from each other. Even if one chamber leaks, the remaining chambers can still maintain the basic structural integrity of the inflatable frame 10, thereby improving the overall reliability and fault tolerance. Alternatively, the inflatable air chamber can also adopt a connected design, forming a unified pressure system inside the entire inflatable frame 10, facilitating rapid inflation and deflation while ensuring uniform stress on all parts, thus improving the overall stability of the structure. In practical applications, a pressure regulating device can also be set to achieve precise control of the air pressure inside the inflatable air chamber, thereby flexibly adjusting the overall support strength and rigidity level according to different usage scenarios.

[0018] Please see Figures 2-3 In some embodiments of this application, the mounting structure 20 includes a mounting base 21 and a mounting member 23. The mounting base 21 and the inflatable frame 10 together form a mounting cavity 211. The mounting member 23 is connected to the mounting base 21, and the speaker 30 is detachably connected to the mounting member 23. Part of the mounting member 23 is located in the mounting cavity 211.

[0019] In other embodiments, the mounting structure 20 can be a snap-fit ​​structure to fix the speaker 30 to the inflatable frame 10. For example, the inflatable frame 10 is provided with a male snap-fit ​​end, and the speaker 30 is provided with a female snap-fit ​​end, so that the speaker 30 is snapped and fixed to the inflatable frame 10.

[0020] Understandably, the mounting base 21 is installed on the inflatable frame 10 to provide a stable foundation for the installation of the mounting component 23 and the speaker 30. The mounting component 23 is used to install the speaker 30, therefore it has a certain strength to withstand the weight of the speaker 30 and ensure its secure fixation. The mounting cavity 211 is formed by the mounting base 21 and the inflatable frame 10. The mounting cavity 211 provides installation space to avoid the mounting component 23 or other installation parts, thus making the overall installation structure 20 more compact. The mounting base 21 can be fixed to the inflatable frame 10 by means of snap-fit ​​connection or adhesive, and the mounting component 23 can be used to install the speaker 30 by means of hook, snap-fit, or magnetic connection. For example, the mounting component 23 can be provided with a slot or magnetic part to match the speaker, thereby realizing the quick installation and removal of the speaker.

[0021] Furthermore, in some embodiments, such as Figure 2As shown, the mounting base 21 includes a base body 212 and a mounting part 213. The mounting part 213 is connected to the inflatable frame 10. The base body 212 and the inflatable frame 10 are spaced apart to form a mounting cavity 211. The mounting component 23 is connected to the base body 212.

[0022] The base 212 can be made of a high-strength material to enhance the stability of the overall structure, while the mounting part 213 can be made of a flexible material to better fit and fix it to the surface of the inflatable frame 10, improving the tightness and reliability of the connection. Through the cooperative design of the base 212 and the mounting part 213, not only is it easy to securely connect the mounting base 21 to the inflatable frame 10, but it can also effectively absorb external vibrations or impacts.

[0023] Furthermore, such as Figures 2-3 As shown, the mounting part 213 is arc-shaped and is fixed to the outer side of the inflatable frame 10.

[0024] It should be noted that the inflatable frame 10 includes a column, therefore the outer surface of the inflatable frame 10 is a curved structure. The arc-shaped mounting part 213 can better fit the outer surface of the inflatable frame 10, thereby improving the tightness and stability of the connection between the mounting base 21 and the inflatable frame 10. In addition, the arc-shaped structure can also disperse external forces, avoiding damage to the connection parts caused by local stress concentration, thereby further enhancing the durability and reliability of the overall structure.

[0025] In some embodiments of this application, such as Figure 2 As shown, the mounting component 23 includes a hook 232, a connecting part 231, and a fixing part (not shown in the figure). The connecting part 231 is disposed on the side of the base 212 away from the mounting part 213. The fixing part is disposed in the mounting cavity 211 and is used to fix the connecting part 231 to the base 212. The hook 232 is disposed on the connecting part 231 and is used to hang the speaker 30 on the hook 232.

[0026] Specifically, the connecting part 231 can be a flat plate or a rod-shaped structure, which is securely connected to the base 212 through a fixing part, such as a screw or a clip, so that the connecting part 231 can be firmly fixed to the base 212, ensuring the overall structural stability of the mounting component 23. The hook 232 is located at the top of the connecting part 231 and can extend away from the connecting part 231, thus providing a support point for mounting the speaker 30. The speaker 30 can be quickly mounted or dismounted by engaging the hook 232 with a mounting slot on its back.

[0027] It should be noted that the hook 232 can be U-shaped or L-shaped to adapt to the installation requirements of different types of speakers 30. The material of the hook 232 is preferably a plastic or metal material with a certain degree of elasticity and strength to ensure that it is not easily deformed or broken when the speaker 30 is mounted. Furthermore, the hook 232 can be integrally molded with the connecting part 231, thereby improving the stability of the overall structure and production efficiency. Alternatively, the hook 232 can also be detachably connected to the connecting part 231, allowing for the replacement of hooks 232 of different shapes or sizes according to actual needs, thereby further improving the adaptability and practicality of the mounting component 23.

[0028] In some embodiments, the connecting part 231 is provided with at least two hooks 232, and both hooks 232 are connected to the speaker 30, thereby effectively preventing the speaker 30 from falling off during use. At the same time, the spacing between the at least two hooks 232 can be adapted and adjusted according to the size of different speakers 30, thereby improving the stability and applicability of the speaker 30 installation.

[0029] Alternatively, in some embodiments, the connection 231 and the mounting base 21 can also be slidably connected. For example, the connection 231 can be slidably adjusted on the mounting base 21 by means of a guide rail or a sliding groove structure. This allows the position of the mounting component 23 and the speaker 30 to be adjusted to meet the installation requirements of speakers 30 of different sizes or shapes. This not only improves installation flexibility but also effectively adjusts the center of gravity of the speaker 30 during installation, ensuring the balance and stability of the overall structure.

[0030] Alternatively, in some embodiments of this application, such as Figures 3-4 As shown, the mounting component 23 includes a hook 232, a connecting part 231, and a rotating structure 24. The hook 232 is disposed on the connecting part 231 and is used to hang the speaker 30 on the hook 232. The connecting part 231 is disposed on the side of the base 212 away from the mounting part 213. The rotating structure 24 is disposed in the mounting cavity 211. The connecting part 231 and the base 242 are rotatably connected through the rotating structure 24. That is, the connecting part 231 can be rotated relative to the mounting base 21 through the rotating structure 24, thereby adjusting the angle of the hook 232 to meet the needs of different mounting angles.

[0031] Specifically, the rotating structure 24 is disposed in the mounting cavity 211 to protect the rotating structure 24 from the influence of the external environment and to improve the compactness of the overall structure. This embodiment does not limit the specific implementation of the rotating structure 24. For example, the rotating structure 24 can adopt a shaft and bearing mating structure to achieve multi-directional adjustment of the connecting part 231 relative to the mounting base 21, while ensuring stability and flexibility during the adjustment process; alternatively, the rotating structure 24 can also adopt a ball joint to achieve multi-angle free adjustment of the connecting part 231 on the mounting base 21, thereby further enhancing the adaptability of the hook 232 to the speaker 30.

[0032] In some embodiments, the rotating structure 24 may also be provided with a locking component to fix the connecting portion 231 after the rotating structure 24 is adjusted to the required angle, preventing angle deviation due to external forces and thus ensuring the stability of the speaker 30 during use. Alternatively, a limiting component may be provided between the connecting portion 231 and the mounting base 21 to limit the rotation angle of the rotating structure 24. When the connecting portion 231 rotates to a preset angle via the rotating structure 24, the limiting component can prevent the rotating structure 24 from continuing to rotate, thereby ensuring the stability and safety of the speaker 30 after installation.

[0033] Furthermore, in some embodiments of this application, such as Figures 3-4 As shown, the rotating structure 24 includes a first part 241, a second part 242, and a damping element 243. The first part 241 is connected to the connecting part 231; the second part 242 is disposed in the mounting cavity 211 and connected to the base; the damping element 243 is disposed between the first part 241 and the second part 242, and the first part 241 and the second part 242 are rotatably connected by the damping element 243. It can be understood that the design of the damping element 243 can provide appropriate rotational resistance for the rotation of the first part 241 and the second part 242, so that the connecting part 231 can stably maintain its position after being adjusted to the required angle, and is not easily displaced from the speaker 30 due to external forces or vibrations.

[0034] Furthermore, in some embodiments of this application, such as Figure 2 As shown, the mounting structure 20 also includes a cover 22, which together with the mounting base 21 forms a receiving cavity (not shown in the figure), and the cover 22 is rotatably connected to the mounting base 21 to open and close the receiving cavity, with the mounting member 23 located in the receiving cavity.

[0035] Understandably, the receiving cavity can be opened or closed by rotating the cover 22, facilitating the installation of the speaker 30 onto the mounting component 23. The inflatable frame 100 is supported by air; after removing the air, the inflatable frame 100 can be quickly stored. When the inflatable frame 100 is stored or when the speaker 30 is not installed on the mounting component 23, the cover 22 can be closed to house the mounting component 23 within the receiving cavity, thus providing protection and preventing the mounting component 23 from being exposed and scraping against the inflatable frame 100, which could lead to rupture or wear of the inflatable cavity, thereby extending the service life of the inflatable frame 100.

[0036] Furthermore, in some embodiments of this application, the connecting part 231 can drive the hook 232 to move, and the hook 232 has a storage position and a hanging position on its movement path; when the cover 22 rotates to close the receiving cavity, the hook 232 is in the storage position; when the cover 22 rotates to open the receiving cavity, the hook 232 can move from the storage position to the hanging position. It can be understood that when the hook 232 is in the storage position, it can be accommodated in the receiving cavity, and at this time the cover 22 is closed, so the hook 232 will not interfere with or damage the external inflatable frame 10; at the same time, after the cover 22 is opened, the hook 232 can be adjusted to the hanging position by rotating the connecting part 231 for hanging the speaker 30 or other accessories, thereby improving the overall convenience and functionality of use.

[0037] Please see Figure 1 In some embodiments of this application, the minimum distance between the mounting structure 20 and the bottom of the inflatable frame 10 is less than the minimum distance between the mounting structure 20 and the top of the inflatable frame 10.

[0038] Understandably, the mounting structure 20 is located near the bottom of the inflatable frame 10. This arrangement lowers the overall center of gravity, making the center of gravity of the speaker 30 more biased towards the bottom of the inflatable frame 10 after installation. This improves the overall stability of the installation and facilitates operation and maintenance by the user. Furthermore, multiple mounting structures 20 can be installed symmetrically. This helps prevent the inflatable frame 100 from tilting or becoming unbalanced due to uneven weight distribution when multiple speaker 30s are installed, further ensuring the balance and safety of the inflatable frame 100 during use.

[0039] In some embodiments, the mounting structure 20 is connected to one side of the inflatable frame 10, and the orthographic projection of the inflatable frame 10 on a first plane covers the orthographic projection of the mounting structure 20 on the first plane, the first plane being perpendicular to the arrangement direction of the mounting structure 20 and the inflatable frame 10.

[0040] Specifically, the inflatable frame 10 has a front side and a rear side. The mounting structure 20 can be located on the front side or the rear side of the inflatable frame 10. In this case, the mounting structure 20 can be completely within the outline of the inflatable frame 10. This setting can effectively prevent the mounting structure 20 from exceeding the edge of the inflatable frame 10 and causing interference with other components. It also helps to improve the compactness and aesthetics of the overall structure.

[0041] It should be noted that, as Figure 2 As shown, the mounting base 21 and the connecting part 231 can both be elongated. Multiple hooks 232 are spaced apart along the length of the connecting part 231. The elongated design makes it easier for the mounting structure 20 to be arranged along the outline of the inflatable frame 10. When the cover 22 is placed on the mounting base 21, the orthographic projection of the inflatable frame 10 on the first plane covers the orthographic projection of the mounting structure 20 on the first plane. This ensures that the overall flatness of the mounting structure 20 is not affected when the speaker 30 is not installed, and also helps to reduce the risk of interference between the mounting structure 20 and other components.

[0042] Please see Figure 5 In some embodiments of this application, the inflatable frame 10 includes a first column 11, a second column 12, and a support column 13. There are two first columns 11 and multiple support columns 13. The first columns 11 extend in a vertical direction, and the mounting structure 20 is connected to the first column 11. The second column 12 is connected between the two first columns 11 to form an accommodating space 111. Multiple support columns 13 are connected to each first column 11, and the bottom of the support column 13 and the bottom of the second column 12 are used to contact the bearing surface.

[0043] Specifically, the first column 11 and the second column 12 together construct the receiving space 111 of the inflatable frame 10, while multiple support columns 13 are connected to the first column 11 to enhance the overall stability and load-bearing capacity of the inflatable frame 10. The support columns 13 allow the force on the inflatable frame 10 to be evenly distributed to the bearing surface, effectively reducing the risk of structural deformation or damage due to excessive localized stress. Furthermore, when the support columns 13 are connected to the first column 11, the end of the support column 13 can be connected to the middle or top of the first column 11 to improve the overall structural stability and compressive strength of the inflatable frame 10. Simultaneously, when the bottom of the support column 13 contacts the bearing surface, a buffer pad or anti-slip pad can be added to enhance structural stability and prevent the inflatable frame 10 from shaking or shifting due to uneven ground or vibration.

[0044] The first column 11, the second column 12, and the support column 13 all have inflation chambers. It can be understood that the design of these inflation chambers achieves both lightweight construction and high-strength support capabilities for the overall structure. After the inflation chambers are filled with gas, the inflatable frame 10 possesses sufficient rigidity and load-bearing capacity, while maintaining the overall structure's flexibility and portability. Furthermore, the inflation chambers can absorb external impact forces to a certain extent, improving the safety and stability of the equipment. The inflation chambers can be filled manually or automatically, specifically through the inflation ports located on the first column 11 or the second column 12.

[0045] Understandably, when the first column 11 is a cuboid, the side of the mounting base 21 facing the first column 11 is flat, and the mounting base 21 fits snugly against the side of the first column 11, making the connection between the mounting structure 20 and the first column 11 more stable and reliable. Alternatively, when the first column 11 is a cylinder, the side of the mounting base 21 facing the first column 11 is curved, and the mounting base 21 fits snugly against the curved surface of the first column 11, further enhancing the structural adaptability and tightness of the connection, thereby ensuring that the mounting structure 20 can maintain a stable connection under different environmental conditions.

[0046] Furthermore, in some embodiments of this application, such as Figures 5-6 As shown, the inflatable frame 10 also includes a plurality of connecting columns 14. The end of each support column 13 away from the first column 11 is connected to the end of the second column 12 through a connecting column 14. At least a portion of the first column 11, the support column 13 and the connecting column 14 together form a right-angled triangle structure. The bottom of the support column 13, the connecting column 14 and the bottom of the second column 12 are all used to contact the bearing surface.

[0047] Specifically, by connecting the end of the support column 13 furthest from the first column 11 to the end of the second column 12 via the connecting column 14, the first column 11, support column 13, and connecting column 14 form a stable right-angled triangular structure, further enhancing the overall mechanical stability and deformation resistance of the inflatable frame 10. This structural design not only improves overall rigidity but also effectively disperses pressure when subjected to uneven external forces, preventing local deformation or structural failure. Furthermore, the connecting column 14, together with the support column 13 and the second column 12, forms multiple support points, ensuring the stability of the inflatable frame 10 in complex environments and guaranteeing its safety and reliability. Moreover, the connecting column 14 also enhances the stability of the inflatable frame 10 under dynamic loads. Especially when facing external wind or other forces, the connecting column 14 effectively limits the relative displacement between the first column 11 and the second column 12, preventing the inflatable frame 10 from tilting or swaying.

[0048] Furthermore, in some embodiments of this application, such as Figure 7 As shown, the orthographic projections of multiple support columns 13 on the horizontal plane are symmetrically arranged on opposite sides of the orthographic projection of the second column 12 on the horizontal plane.

[0049] Understandably, the symmetrical distribution of the support columns 13 helps optimize the stress distribution of the inflatable frame 10, enabling the overall structure to distribute the load more evenly when subjected to external pressure, thus avoiding local deformation or structural instability caused by uneven stress. For example, the orthographic projection of the second column 12 on the horizontal plane extends in a straight line, and the orthographic projections of multiple support columns 13 are symmetrically distributed on the left and right sides of this straight-line projection, forming a symmetrical and balanced support system. Simultaneously, the orthographic projections of multiple support columns 13 are also symmetrically distributed on the upper and lower sides of this straight-line projection, further enhancing the load-bearing capacity and structural stability of the inflatable frame 10 in all directions. This multi-directional symmetrical distribution design not only improves the overall uniformity of stress but also effectively copes with external forces from different angles, enhancing the adaptability and anti-interference ability of the inflatable frame 10 in complex environments.

[0050] Further, please see Figure 5 In some embodiments of this application, the inflatable frame 10 further includes a third column 15 and a fourth column 16. The third column 15 is connected between two first columns 11. The third column 15 and the second column 12 are arranged opposite to each other, and the third column 15, the second column 12 and the two first columns 11 together enclose and form an accommodating space 111. The fourth column 16 is located between two first columns 11, and the opposite ends of the fourth column 16 are respectively connected to the third column 15 and the second column 12.

[0051] Specifically, the third column 15, the second column 12, and the two first columns 11 are connected and together form a closed-off receiving space 111. This allows the projection screen 40 to be connected to the columns of the inflatable frame 10 on all sides when installed in the receiving space 111, resulting in a tighter and more stable connection between the projection screen 40 and the inflatable frame 10. Simultaneously, the fourth column 16 further enhances the structural rigidity of the receiving space 111, enabling the overall frame to maintain a more stable geometric shape when subjected to external forces, effectively preventing deformation or displacement caused by localized stress.

[0052] The inflatable frame 10 has a large span in the horizontal direction (along the extension direction of the second column 12). The fourth column 16 can effectively share the load borne by the third column 15 and the second column 12. Especially when the projection screen 40 is subjected to wind pressure or other lateral forces, the fourth column 16, through its connection with the third column 15 and the second column 12 at both ends, can form a stable support in the middle of the receiving space 111, thereby preventing the projection screen 40 from deforming or bulging inside the receiving space 111. In addition, the fourth column 16 can also play a connecting role in the overall structure of the inflatable frame 10, making the force transmission between the columns smoother and more efficient, thereby further improving the load-bearing capacity and structural stability of the entire inflatable frame 10. Preferably, the fourth column 16 is arranged to extend vertically.

[0053] Secondly, please see Figure 8 This application also provides a projection screen 200, including a projection screen 40 and an inflatable frame 100 as described in any of the above embodiments. The projection screen 40 is located in the receiving space 111 and connected to the inflatable frame 10. The highly stable structure of the inflatable frame 100 helps to ensure that the projection screen 40 maintains a flat state under various environmental conditions, thereby ensuring the clarity and display effect of the projected image.

[0054] The projection screen 200 is used in conjunction with the projection device. The light source emitted by the projection device is projected onto the projection screen 30. The speaker 30 audio device is securely fixed to the periphery of the screen 30 by the mounting component 20. The speaker 30 audio device can be connected to the projection device via wired or wireless means to achieve synchronous playback and transmission of audio and video.

[0055] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0056] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An inflatable frame, characterized in that, For mounting a projection screen, including: An inflatable frame having an inflatable cavity, the inflatable frame enclosing a receiving space for accommodating the projection screen, and the bottom of the inflatable frame for contacting an external bearing surface; A mounting structure is connected to the inflatable frame, the mounting structure being used to detachably connect an external speaker to the mounting structure.

2. The inflatable frame according to claim 1, characterized in that, The mounting structure includes: Mounting base, wherein the mounting base and the inflatable frame together form a mounting cavity; The mounting component is connected to the mounting base, the speaker is detachably connected to the mounting component, and a portion of the mounting component is located within the mounting cavity.

3. The inflatable frame according to claim 2, characterized in that, The mounting base includes a base body and a mounting part. The mounting part is connected to the inflatable frame. The base body and the inflatable frame are spaced apart to form the mounting cavity. The mounting component is connected to the base body.

4. The inflatable frame according to claim 3, characterized in that, The mounting part is arc-shaped and is attached to and fixed to the outer side of the inflatable frame.

5. The inflatable frame according to claim 3, characterized in that, The mounting component includes: The base includes a connecting part and a fixing part. The connecting part is located on the side of the base away from the mounting part, and the fixing part is located in the mounting cavity and is used to fix the connecting part to the base. A hook is provided on the connecting part, and the hook is used to hang the speaker on the hook.

6. The inflatable frame according to claim 3, characterized in that, The mounting component includes: The device includes a hook, a connecting part, and a rotating structure. The hook is disposed on the connecting part and is used to hang the speaker on the hook. The connecting part is disposed on the side of the base body away from the mounting part. The rotating structure is disposed in the mounting cavity. The connecting part and the base body are rotatably connected through the rotating structure to adjust the orientation of the hook.

7. The inflatable frame according to claim 6, characterized in that, The rotating structure includes: The first part is connected to the connecting portion; The second part is disposed in the mounting cavity and connected to the base body; A damping element is disposed between the first part and the second part, and the first part and the second part are rotatably connected by the damping element.

8. The inflatable frame according to claim 6, characterized in that, The mounting structure also includes a cover, which together with the base forms a receiving cavity, and the cover is rotatably connected to the base to open and close the receiving cavity, with the mounting component located in the receiving cavity.

9. The inflatable frame according to claim 8, characterized in that, The connecting part can drive the hook to move, and the hook has a storage position and a hanging position on its movement path; When the cover is rotated to close the receiving cavity, the hook is in the storage position; when the cover is rotated to open the receiving cavity, the hook can move from the storage position to the mounting position.

10. The inflatable frame according to claim 1, characterized in that, The minimum distance between the mounting structure and the bottom of the inflatable frame is less than the minimum distance between the mounting structure and the top of the inflatable frame.

11. The inflatable frame according to claim 1, characterized in that, The inflatable frame includes: Two first columns, the first columns extending vertically, and the mounting structure connected to the first columns; The second column connects the two first columns to form the receiving space; Multiple support columns are provided, and each of the first columns is connected to multiple support columns. The bottom of the support columns and the bottom of the second columns are used to contact the bearing surface. The first column, the second column, and the support column all have the inflation chamber.

12. The inflatable frame according to claim 11, characterized in that, The inflatable frame also includes: Multiple connecting columns, wherein the end of each of the supporting columns away from the first column is connected to the end of the second column via one of the connecting columns; The first column, at least a portion thereof, the support column, and the connecting column together form a right-angled triangle structure, and the bottom of the support column, the connecting column, and the bottom of the second column are all used to contact the bearing surface.

13. The inflatable frame according to claim 11, characterized in that, The inflatable frame also includes: The third column is connected between the two first columns. The third column is arranged opposite to the second column, and the third column, the second column, and the two first columns together enclose the accommodating space. The fourth column is located between the two first columns, and the opposite ends of the fourth column are respectively connected to the third column and the second column.

14. A projection screen, characterized in that, It includes a projection screen and an inflatable frame as described in any one of claims 1 to 13, wherein the projection screen is located in the receiving space and is connected to the inflatable frame.

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