Portable projection curtain

Abstract

The invention relates to a portable projection curtain which comprises a left inflation frame, a right inflation frame, a hard rod and projection cloth, a left groove is formed in the side face of the top of the left inflation frame, a right groove is formed in the side face of the top of the right inflation frame, one end of the hard rod can be inserted and fixed into the left groove, and the other end of the hard rod can be inserted and fixed into the right groove. The portable projection curtain provided by the invention has excellent portability and is particularly suitable for occasions such as outdoor activities, family parties or small conferences, and the left inflation frame and the right inflation frame both adopt inflation design, so that the overall weight is greatly reduced, and the stability of the curtain is also improved. A left groove and a right groove are formed in the side face of the top of the inflation frame and used for fixing the hard rod, and it is ensured that the curtain is flat and stable in the using process. The two ends of the hard rod are inserted into the left groove and the right groove respectively, so that the flatness of the curtain is ensured, the wind resistance of the curtain is improved, and the curtain can be kept stable even in breeze.

Description

Technical Field

[0001] The present invention relates to the field of projection equipment, and in particular to a portable projection screen. Background Art

[0002] Traditional projection screens are designed for indoor fixed use, often ignoring portability and flexibility, which limits their application in outdoor activities, mobile offices, or temporary meetings. Although some projection screen products have appeared on the market in recent years to enhance portability, they still have obvious shortcomings in terms of stability, especially in outdoor windy environments, they are prone to shaking, deformation, and even collapse, which seriously affects the viewing experience and display effect. Summary of the invention

[0003] In view of this, the present invention provides a portable projection screen with excellent portability and good stability.

[0004] The purpose of the present invention is achieved through the following technical solutions: A portable projection screen comprises a left inflatable frame, a right inflatable frame, a hard rod and a projection cloth, wherein the top side of the left inflatable frame is provided with a left groove, the top side of the right inflatable frame is provided with a right groove, one end of the hard rod can be inserted and fixed in the left groove, and the other end can be inserted and fixed in the right groove.

[0005] The portable inflatable projection screen is particularly suitable for outdoor activities, family gatherings or small meetings. The projection screen consists of four parts: the left inflatable frame, the right inflatable frame, the hard rod and the projection cloth. Its unique design and portability make it an ideal choice for modern people who pursue convenient life and high-quality viewing experience. Both the left and right inflatable frames adopt an inflatable design, which not only greatly reduces the overall weight, but also improves the stability of the screen. The top side of the inflatable frame is provided with a left groove and a right groove, which are used to fix the hard rod to ensure the flatness and stability of the screen during use. The two ends of the hard rod are inserted into the left groove and the right groove respectively. This design not only ensures the flatness of the screen, but also improves the wind resistance of the screen, and can remain stable even in a breeze.

[0006] The design of the inflatable frame makes the overall weight of the screen light and easy to carry. Whether it is outdoor camping, watching movies in the family backyard or commercial display, it can be easily carried and enjoy the big-screen viewing experience anytime and anywhere. The use of the inflatable frame greatly simplifies the construction process. No complicated bracket assembly is required. It only takes a few minutes to complete the inflation and fix the hard rod, and quickly enter the viewing state. The combination of the inflatable frame and the hard rod provides excellent stability and wind resistance, which can keep the screen flat even in outdoor environments, ensuring that the viewing quality is not affected. Whether it is family entertainment, outdoor movie nights, small meetings or commercial displays, this portable inflatable projection screen can perfectly adapt to meet the use needs of different scenarios. With its innovative design, excellent portability and stability, the portable inflatable projection screen provides users with an unprecedented viewing experience. Both individual users who pursue quality of life and corporate users who need flexible display solutions can benefit from it.

[0007] Preferably, the top of the projection cloth is connected to the hard rod, and the bottom of the projection cloth is connected with a left pull rope and a right pull rope, the left pull rope can be fixed to the left inflatable frame, and the right pull rope can be fixed to the right inflatable frame.

[0008] The top of the projection cloth is tightly connected to the hard rod, ensuring the flatness and stability of the cloth during use. At the same time, the bottom is connected to the left and right inflatable frames through the left and right pull ropes respectively. This design not only increases the stability of the cloth, but also effectively prevents the cloth from shaking under the action of wind, ensuring the image clarity and viewing experience during the viewing process.

[0009] Preferably, the left inflatable frame is provided with a left fixing assembly, which includes a left base connected to the left inflatable frame, a left locking screw threadedly connected to the left base, and a left wire groove is dug in the left base, and the left pull rope can be inserted into the left wire groove and tightened by the left locking screw. The right inflatable frame is provided with a right fixing assembly, which includes a right base connected to the right inflatable frame, a right locking screw threadedly connected to the right base, and a right wire groove is dug in the right base, and the right pull rope can be inserted into the right wire groove and tightened by the right locking screw.

[0010] The left and right inflatable frames are equipped with left and right fixing components, respectively, including a left base, a left locking screw, a right base and a right locking screw. The left and right pull ropes can be inserted into the left and right wire grooves, and fixed and tightened by the left and right locking screws. This design ensures a firm connection of the pull ropes, and the screen can remain stable even in outdoor windy environments, and the viewing effect will not be affected by loose pull ropes. The threaded connection design of the left and right fixing components not only simplifies the installation and disassembly process of the screen, but also improves the convenience of use. At the same time, this design facilitates disassembly and assembly, reducing the difficulty of disassembly and assembly of the projection screen.

[0011] The stable connection between the inflatable frame and the hard pole, combined with the fixed design of the bottom pull rope, improves the stability and wind resistance of the screen. This design allows the portable inflatable projection screen to maintain good stability even in outdoor environments, ensuring image clarity and color reproduction, and providing a stable viewing experience whether in light or slightly stronger wind conditions.

[0012] Preferably, a left recessed ring is provided in the left groove, a left protrusion cooperating with the left recessed ring is provided at the end of the hard rod, a right recessed ring is provided in the right groove, a right protrusion cooperating with the right recessed ring is provided at the end of the hard rod, and the left groove and the right groove are at the same height and directly opposite to each other.

[0013] The precise matching of the left concave ring and the left protrusion, and the right concave ring and the right protrusion, ensures a stable connection between the hard rod and the left inflatable frame and the right inflatable frame. The precise docking of the left protrusion and the left concave ring, and the right protrusion and the right concave ring not only simplifies the construction process and avoids the loosening of the hard rod during use, but also effectively enhances the stability of the screen. Even in outdoor environments, it can ensure the flatness and stability of the screen, bringing users a clearer and more stable viewing experience.

[0014] Preferably, the left inflatable frame includes a left first inflatable foot, a left second inflatable foot and a left third inflatable foot distributed in a triangular shape, the left first inflatable foot, the left second inflatable foot and the left third inflatable foot intersect at a left intersection, and the upper part of the left intersection is connected to the left upright inflatable rod. The right inflatable frame includes a right first inflatable foot, a right second inflatable foot and a right third inflatable foot distributed in a triangular shape, the right first inflatable foot, the right second inflatable foot and the right third inflatable foot intersect at a right intersection, and the upper part of the right intersection is connected to the right upright inflatable rod.

[0015] The left inflatable frame and the right inflatable frame are respectively composed of the left first inflatable foot, the left second inflatable foot, the left third inflatable foot and the right first inflatable foot, the right second inflatable foot, and the right third inflatable foot, which intersect at the left intersection and the right intersection to form a stable triangular support structure. This design not only improves the wind resistance and stability of the inflatable frame, but also ensures the stability of the bottom of the screen. Even in a windy environment, the screen can be kept flat, providing users with a more secure viewing experience. The inflation connection design between the left intersection and the left vertical pole, and the right intersection and the right vertical pole makes the inflation process more uniform, improves the inflation efficiency, and at the same time ensures the overall stability of the inflatable frame, avoiding structural instability that may be caused by local uneven inflation.

[0016] Preferably, the projection cloth can be wound around the surface of the hard rod.

[0017] The projection cloth can be rolled up on the surface of the hard pole. This design not only facilitates the folding and unfolding of the projection cloth, allowing the cloth to be quickly rolled up when not in use, reducing storage space, but also simplifies the process of setting up and disassembling, improving the efficiency of use. At the same time, the projection cloth rolled up on the hard pole is also easier to protect during transportation, avoiding scratches or creases that may be caused by folding, and extending the service life of the cloth.

[0018] The beneficial effects of the present invention compared with the prior art are: The portable projection screen of the present invention, the portable inflatable projection screen is particularly suitable for occasions such as outdoor activities, family gatherings or small meetings. The projection screen consists of four parts: a left inflatable frame, a right inflatable frame, a hard rod and a projection cloth. Its unique design and portability make it an ideal choice for modern people who pursue convenient life and high-quality viewing experience. Both the left inflatable frame and the right inflatable frame adopt an inflatable design, which not only greatly reduces the overall weight, but also improves the stability of the screen. A left groove and a right groove are respectively provided on the top side of the inflatable frame for fixing the hard rod to ensure the flatness and stability of the screen during use. The two ends of the hard rod are respectively inserted into the left groove and the right groove. This design not only ensures the flatness of the screen, but also improves the wind resistance of the screen, and can remain stable even in a breeze.

[0019] The design of the inflatable frame makes the overall weight of the screen light and easy to carry. Whether it is outdoor camping, watching movies in the family backyard or commercial display, it can be easily carried and enjoy the big-screen viewing experience anytime and anywhere. The use of the inflatable frame greatly simplifies the construction process. No complicated bracket assembly is required. It only takes a few minutes to complete the inflation and fix the hard rod, and quickly enter the viewing state. The combination of the inflatable frame and the hard rod provides excellent stability and wind resistance, which can keep the screen flat even in outdoor environments, ensuring that the viewing quality is not affected. Whether it is family entertainment, outdoor movie nights, small meetings or commercial displays, this portable inflatable projection screen can perfectly adapt to meet the use needs of different scenarios. With its innovative design, excellent portability and stability, the portable inflatable projection screen provides users with an unprecedented viewing experience. Both individual users who pursue quality of life and corporate users who need flexible display solutions can benefit from it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural diagram of a portable projection screen according to an embodiment of the present invention.

[0022] Figure 2 A partial cross-sectional view of a portable projection screen according to an embodiment of the present invention.

[0023] Figure 3 for Figure 1 Magnified view of area A. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0028] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0029] The present embodiment provides a portable projection screen, including a left inflatable frame 100, a right inflatable frame 200, a hard rod 300 and a projection cloth 400. The top side of the left inflatable frame 100 is provided with a left groove 120, and the top side of the right inflatable frame 200 is provided with a right groove. One end of the hard rod 300 can be inserted and fixed in the left groove 120, and the other end can be inserted and fixed in the right groove.

[0030] The portable inflatable projection screen is particularly suitable for outdoor activities, family gatherings or small meetings. The projection screen consists of four parts: a left inflatable frame 100, a right inflatable frame 200, a hard rod 300 and a projection cloth 400. Its unique design and portability make it an ideal choice for modern people who pursue convenient life and high-quality viewing experience. Both the left inflatable frame 100 and the right inflatable frame 200 adopt an inflatable design, which not only greatly reduces the overall weight, but also improves the stability of the screen. The top side of the inflatable frame is provided with a left groove 120 and a right groove, respectively, for fixing the hard rod 300 to ensure the flatness and stability of the screen during use. The two ends of the hard rod 300 are respectively inserted into the left groove 120 and the right groove. This design not only ensures the flatness of the screen, but also improves the wind resistance of the screen, and can remain stable even in a breeze.

[0031] The design of the inflatable frame makes the screen light and easy to carry. Whether it is outdoor camping, watching movies in the family backyard or commercial display, it can be easily carried and enjoy the big-screen viewing experience anytime and anywhere. The use of the inflatable frame greatly simplifies the construction process. No complicated bracket assembly is required. It only takes a few minutes to complete the inflation and fixation of the hard rod 300, and quickly enter the viewing state. The combination of the inflatable frame and the hard rod 300 provides excellent stability and wind resistance, which can keep the screen flat even in outdoor environments, ensuring that the viewing quality is not affected. Whether it is family entertainment, outdoor movie nights, small meetings or commercial displays, this portable inflatable projection screen can perfectly adapt to meet the use needs of different scenarios. With its innovative design, excellent portability and stability, the portable inflatable projection screen provides users with an unprecedented viewing experience. Both individual users who pursue quality of life and corporate users who need flexible display solutions can benefit from it.

[0032] In this embodiment, the top of the projection cloth 400 is connected to the hard rod 300 , and the bottom of the projection cloth 400 is connected with a left pull rope 410 and a right pull rope 420 . The left pull rope 410 can be fixed to the left inflatable frame 100 , and the right pull rope 420 can be fixed to the right inflatable frame 200 .

[0033] The top of the projection cloth 400 is tightly connected to the hard rod 300, ensuring the flatness and stability of the cloth during use. At the same time, the bottom is connected to the left inflatable frame 100 and the right inflatable frame 200 through the left pull rope 410 and the right pull rope 420 respectively. This design not only increases the stability of the cloth, but also effectively prevents the cloth from shaking under the action of wind, ensuring the image clarity and viewing experience during the viewing process.

[0034] In this embodiment, the left inflatable frame 100 is provided with a left fixing assembly, which includes a left base connected to the left inflatable frame 100, a left locking screw threadedly connected to the left base, and a left wire groove is dug in the left base, and the left pull rope 410 can be inserted into the left wire groove and compressed by the left locking screw. The right inflatable frame 200 is provided with a right fixing assembly 210, which includes a right base 211 connected to the right inflatable frame 200, a right locking screw 212 threadedly connected to the right base 211, and a right wire groove 213 is dug in the right base 211, and the right pull rope 420 can be inserted into the right wire groove 213 and compressed by the right locking screw 212.

[0035] The left inflatable frame 100 and the right inflatable frame 200 are respectively equipped with a left fixing assembly and a right fixing assembly, including a left base, a left locking screw, a right base and a right locking screw. The left pull rope 410 and the right pull rope 420 can be inserted into the left wire groove and the right wire groove, and fixed and tightened by the left locking screw and the right locking screw. This design ensures the firm connection of the pull rope, and the screen can remain stable even in an outdoor windy environment, and the viewing effect will not be affected by the loose pull rope. The threaded connection design of the left fixing assembly and the right fixing assembly not only simplifies the installation and disassembly process of the screen, but also improves the convenience of use. At the same time, this design facilitates disassembly and assembly, reducing the difficulty of disassembly and assembly of the projection screen.

[0036] The stable connection between the inflatable frame and the hard pole 300, combined with the fixed design of the bottom pull rope, improves the stability and wind resistance of the screen. This design allows the portable inflatable projection screen to maintain good stability even in outdoor environments, ensuring image clarity and color reproduction, and providing a stable viewing experience whether in light or slightly stronger wind conditions.

[0037] In this embodiment, a left recessed ring 121 is provided in the left groove 120, a left protrusion 310 cooperating with the left recessed ring 121 is provided at the end of the hard rod 300, a right recessed ring is provided in the right groove, a right protrusion cooperating with the right recessed ring is provided at the end of the hard rod 300, and the left groove 120 and the right groove are at the same height and face each other.

[0038] The precise matching of the left concave ring 121 and the left protrusion 310, and the right concave ring and the right protrusion ensures a stable connection between the hard rod 300 and the left inflatable frame 100 and the right inflatable frame 200. The precise docking of the left protrusion 310 and the left concave ring 121, and the right protrusion and the right concave ring not only simplifies the construction process and avoids the possible loosening of the hard rod 300 during use, but also effectively enhances the stability of the screen, ensuring the flatness and stability of the screen even in outdoor environments, bringing users a clearer and more stable viewing experience.

[0039] In this embodiment, the left inflatable frame 100 includes a left first inflatable foot 101, a left second inflatable foot 102 and a left third inflatable foot 103 distributed in a triangular shape, the left first inflatable foot 101, the left second inflatable foot 102 and the left third inflatable foot 103 intersect at a left intersection, and the upper part of the left intersection is connected to the left upright inflatable rod 104, and the right inflatable frame 200 includes a right first inflatable foot 201, a right second inflatable foot 202 and a right third inflatable foot 203 distributed in a triangular shape, the right first inflatable foot 201, the right second inflatable foot 202 and the right third inflatable foot 203 intersect at the right intersection, and the upper part of the right intersection is connected to the right upright inflatable rod 204.

[0040] The left inflatable frame 100 and the right inflatable frame 200 are respectively composed of a left first inflatable foot 101, a left second inflatable foot 102, a left third inflatable foot 103 and a right first inflatable foot 201, a right second inflatable foot 202, and a right third inflatable foot 203, which intersect at the left intersection and the right intersection to form a stable triangular support structure. This design not only improves the wind resistance and stability of the inflatable frame, but also ensures the stability of the bottom of the screen. Even in a windy environment, the screen can be kept flat, providing users with a more secure viewing experience. The inflation connection design of the left intersection and the left upright pole, and the right intersection and the right upright pole makes the inflation process more uniform, improves the inflation efficiency, and at the same time ensures the overall stability of the inflatable frame, avoiding structural instability that may be caused by local uneven inflation.

[0041] In this embodiment, the projection cloth 400 can be rolled up on the surface of the rigid rod 300 .

[0042] The projection cloth 400 can be rolled up on the surface of the hard rod 300. This design not only facilitates the folding and unfolding of the projection cloth 400, so that the cloth can be quickly rolled up when not in use, reducing storage space, but also simplifies the assembly and disassembly process, improving the efficiency of use. At the same time, the projection cloth 400 rolled up on the hard rod 300 is also easier to protect during transportation, avoiding scratches or creases that may be caused by folding, and extending the service life of the cloth.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable projection screen, characterized in that: It includes a left inflatable frame, a right inflatable frame, a hard rod and a projection cloth. The top side of the left inflatable frame is provided with a left groove, the top side of the right inflatable frame is provided with a right groove, one end of the hard rod can be inserted and fixed in the left groove, and the other end can be inserted and fixed in the right groove.

2. The portable projection screen according to claim 1, characterized in that: The top of the projection cloth is connected to the hard rod, and the bottom of the projection cloth is connected with a left pull rope and a right pull rope. The left pull rope can be fixed to the left inflatable frame, and the right pull rope can be fixed to the right inflatable frame.

3. The portable projection screen according to claim 2, characterized in that: The left inflatable frame is provided with a left fixing assembly, which includes a left base connected to the left inflatable frame and a left locking screw threadedly connected to the left base. The left base is provided with a left wire groove, and the left pull rope can be extended into the left wire groove and tightened by the left locking screw.

4. The portable projection screen according to claim 2, characterized in that: The right inflatable frame is provided with a right fixing assembly, and the right fixing assembly includes a right base connected to the right inflatable frame, and a right locking screw threadedly connected to the right base. The right base is provided with a right wire groove, and the right pull rope can be extended into the right wire groove and tightened by the right locking screw.

5. The portable projection screen according to claim 1, characterized in that: A left concave ring is arranged in the left groove, and a left protrusion matching with the left concave ring is arranged at the end of the hard rod.

6. The portable projection screen according to claim 1, characterized in that: A right concave ring is arranged in the right groove, and a right protrusion matching with the right concave ring is arranged at the end of the hard rod.

7. The portable projection screen according to claim 1, characterized in that: The left inflatable frame includes a left first inflatable foot, a left second inflatable foot and a left third inflatable foot distributed in a triangle shape. The left first inflatable foot, the left second inflatable foot and the left third inflatable foot intersect at a left intersection, and the upper part of the left intersection is connected to the left upright inflatable rod.

8. The portable projection screen according to claim 1, characterized in that: The right inflatable frame includes a right first inflatable foot, a right second inflatable foot and a right third inflatable foot distributed in a triangle. The right first inflatable foot, the right second inflatable foot and the right third inflatable foot intersect at a right intersection, and the top of the right intersection is connected to the right upright inflatable rod.

9. The portable projection screen according to claim 1, characterized in that: The left groove and the right groove are at the same height and face each other.

10. The portable projection screen according to claim 1, characterized in that: The projection cloth can be rolled up on the surface of the hard rod.

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