A back-projection soft screen splicing device

Abstract

This invention discloses a seam-seam device for rear projection flexible screens, belonging to the field of flexible screen seam technology. The seam-seam device includes a vertically arranged fixed profile, a tensioning component for tensioning the top and bottom of the flexible screen, a tensioning component for tightening the seam ends of the two flexible screens, and a clamping component for holding the seam ends of the two flexible screens. The tensioning components are in two sets located at both ends of the fixed profile; one tensioning component tensions the top of the flexible screen, and the other tensions the bottom. The tensioning component includes a mounting component and a tensioning component, which are detachably connected. The clamping component includes a mounting hinge and a clamping piece. The tensioning component is positioned between the two clamping pieces; when the tensioning component tightens the seam ends of the two flexible screens, the two clamping pieces clamp the two flexible screens. This invention achieves effective seam sealing between flexible screens, solving the seam problem between them.

Description

Technical Field

[0001] This invention belongs to the field of flexible screen splicing technology, and particularly relates to a splicing device for a rear projection flexible screen. Background Technology

[0002] Rear projection screens, a type of screen, are widely used in command, debugging, monitoring, teaching and training, and management fields in aerospace, telecommunications, railway, water conservancy and hydropower, flood control, petrochemical, and higher education institutions. Rear projection screens can be broadly categorized into video projection walls, used in shopping malls, waiting rooms, exhibition halls, studios, and stadiums for advertising and atmosphere enhancement; and graphic data projection walls, used in conference rooms, command centers, and production scheduling for image, monitoring, process, and control functions. Rear projection maintains realistic color reproduction and clear images even in bright lighting conditions.

[0003] Existing rear projection screens include glass screens, acrylic screens, PC flat panel screens, and flexible screens. Among them, glass screens, acrylic screens, and PC flat panel screens are mostly rigid or semi-rigid screens, while flexible screens are only used as single-channel screens. Due to the unresolved splicing problem of flexible screens, most manufacturers have abandoned the use of flexible screens and instead used rigid and semi-rigid screens as replacements. However, when the screen size is large, rigid or semi-rigid screens will have inconvenient transportation problems, and solutions require wall demolition, which makes construction difficult. Therefore, a splicing device for rear projection flexible screens is needed to solve the splicing problem of flexible screens and realize the widespread use of flexible screens. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a splicing device for a rear projection soft screen to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a splicing device for a rear projection soft screen, which splices adjacent soft screens, the soft screens being installed within a frame, the splicing device comprising a vertically arranged fixing profile, a tensioning component for tensioning the top and bottom of the soft screens, a tensioning component for pulling the splicing ends of the two soft screens together, and a clamping component for holding the splicing ends of the two soft screens together.

[0006] The tensioning components are in two sets and are located at both ends of the fixed profile. One tensioning component tensions the top of the soft screen, and the other tensioning component tensions the bottom of the soft screen.

[0007] The tensioning assembly includes a mounting component and a tensioning component. The mounting component and the tensioning component are detachably connected. The mounting component is provided with a mounting groove for connecting to the fixed profile. The tensioning component is provided with a limiting groove for limiting the end of the flexible screen.

[0008] The clamping assembly includes a mounting hinge and a clamping piece. The mounting hinge is disposed on the fixed profile, and the clamping piece is located at the movable end of the mounting hinge. There are two clamping pieces, and one side forms a clamping angle to clamp the end of the soft screen.

[0009] The tensioning assembly is positioned between the two clamping plates. When the tensioning assembly tensions the seam ends of the two flexible screens, the two clamping plates clamp the two flexible screens.

[0010] In a preferred embodiment of the present invention, the tensioning component includes a U-shaped adjusting block and an adjusting screw located on the U-shaped adjusting block, the adjusting screw passing through the U-shaped adjusting block.

[0011] In a preferred embodiment of the present invention, the adjusting screw is connected to the frame via an adjusting member to tighten the soft curtain installed on the frame.

[0012] In a preferred embodiment of the present invention, each tensioning assembly has two U-shaped mounting blocks, which are detachably mounted on both sides of the fixed profile, and are connected by a connecting piece.

[0013] In a preferred embodiment of the present invention, a plurality of springs are provided on the fixing profile, and one end of each spring is engaged in the mounting groove.

[0014] In a preferred embodiment of the present invention, the mounting groove is formed by two mounting members fitting together.

[0015] In a preferred embodiment of the present invention, there are two tensioning members that are fitted together, and the two tensioning members form a limiting groove, which limits the seam ends of the two flexible curtains.

[0016] In a preferred embodiment of the present invention, a buckle is provided on the fixing profile, and a slot is provided on the clamping piece. One end of the buckle is fixed to the fixing profile, and the other end is fastened into the slot to fix the clamping piece.

[0017] In a preferred embodiment of the present invention, the number of the fasteners is multiple and they are spaced apart along the length of the fixing profile.

[0018] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0019] (1) The present invention achieves effective seam splicing between soft screens by using a vertically set fixed profile, a tensioning component that tensions the top and bottom of the soft screen, a tensioning component that pulls the ends of the two soft screen seams together, and a clamping component that clamps the ends of the two soft screen seams together, through the combination of tensioning and clamping, thus solving the seam splicing problem between soft screens, which is conducive to the widespread use of soft screens and reduces the use of hard screens or semi-hard screens.

[0020] (2) The present invention uses two sets of tensioning components, which are tensioned at the top and at the bottom respectively, so that the soft screen can be fixed from the top and bottom of the soft screen respectively, and both the top and bottom of the soft screen are in a tensioned state.

[0021] (3) The present invention sets the tensioning component in two clamping pieces, so that the tensioning component and the clamping component are combined, which saves space and can also achieve tensioning and clamping of the ends of the soft screen seam, thereby solving the seam problem of the soft screen. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0025] Figure 3 This is a schematic diagram of the tensioning assembly according to a preferred embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the tensioning assembly according to a preferred embodiment of the present invention;

[0027] Figure 5 This is a partial structural diagram of a preferred embodiment of the present invention;

[0028] Figure 6 for Figure 5 Top view;

[0029] In the image: 100, PVC screen; 200, frame;

[0030] 10. Fixed profile; 11. Spring; 12. Buckle; 20. Tensioning assembly; 21. U-shaped adjusting block; 22. Adjusting screw; 30. Tensioning assembly; 31. Mounting component; 311. Mounting groove; 32. Tensioning component; 321. Limiting groove; 40. Clamping assembly; 41. Mounting hinge; 42. Clamping piece; 421. Slot; 50. Adjusting component; 60. Connecting piece. Detailed Implementation

[0031] The following drawings will disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. It should be understood that these practical details are not intended to limit the present invention. That is, in some embodiments of the present invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0032] Combination Figures 1 to 6 As shown, this embodiment provides a seaming device for a rear projection soft screen, which seams adjacent soft screens 100. The soft screens 100 are installed inside the frame 200. The seaming device of this embodiment seams the ends of the soft screens 100 located inside the frame 200, and tensions and fixes the soft screens 100 at the top and bottom.

[0033] Combination Figure 1 and Figure 2 As shown, the seam-seam device includes a vertically arranged fixed profile 10, a tensioning component 20 for tensioning the top and bottom of the flexible screen 100, a tensioning component 30 for pulling the seam ends of the two flexible screens 100 together, and a clamping component 40 for clamping the seam ends of the two flexible screens 100. This seam-seam device achieves effective seam-seam between the flexible screens 100, solves the seam problem between the flexible screens 100, and is conducive to the widespread use of the flexible screens 100, reducing the use of rigid or semi-rigid screens.

[0034] Combination Figure 2 and Figure 3 As shown, there are two sets of tensioning components 20 located at both ends of the fixed profile 10. One tensioning component 20 tensions the top of the flexible screen 100, and the other tensioning component 20 tensions the bottom of the flexible screen 100. The tensioning component 20 includes a U-shaped adjusting block 21 and an adjusting screw 22 located on the U-shaped adjusting block 21. The adjusting screw 22 passes through the U-shaped adjusting block 21. The use of the two sets of tensioning components 20 can fix the flexible screen 100 from the top and bottom of the flexible screen 100 respectively, so that the top and bottom of the flexible screen 100 are both in a tensioned state.

[0035] Specifically, the adjusting screw 22 is connected to the frame 200 through the adjusting component 50 to tighten the flexible screen 100 installed on the frame 200. Each tensioning component 20 has two U-shaped mounting blocks, which are detachably installed on both sides of the fixed profile 10. The two U-shaped mounting blocks are connected by a connecting piece 60. By changing the position of the U-shaped mounting blocks on the fixed profile 10, the connection position between the adjusting component 50 and the frame 200 is changed to ensure that the top or bottom of the flexible screen 100 is tightened and fixed.

[0036] Combination Figure 4 and Figure 5As shown, the tensioning assembly 30 includes a mounting member 31 and a tensioning member 32. The mounting member 31 and the tensioning member 32 are detachably connected. The mounting member 31 is provided with a mounting groove 311 that connects to the fixed profile 10. The tensioning member 32 is provided with a limiting groove 321 that limits the end of the flexible screen 100. The fixed profile 10 is provided with a plurality of springs 11. One end of the spring 11 is engaged in the mounting groove 311. Under the tension of the spring 11, the mounting member 31 is tensioned and limited. The tensioning member 32 is detachably connected to the mounting member 31. The end of the flexible screen 100 is located in the limiting groove 321 of the tensioning member 32. The mounting member 31 tensions the tensioning member 32, thereby limiting the end of the flexible screen 100.

[0037] Specifically, in this embodiment, the mounting groove 311 is formed by two mounting members 31 fitting together, and there are two tensioning members 32 that are fitted together. The two tensioning members 32 form a limiting groove 321, which limits the seam ends of the two flexible curtains 100.

[0038] In this embodiment, the clamping assembly 40 includes a mounting hinge 41 and clamping pieces 42. The mounting hinge 41 is disposed on the fixed profile 10, and the clamping pieces 42 are located at the movable end of the mounting hinge 41. There are two clamping pieces 42, and one side forms a clamping angle to clamp the end of the flexible screen 100. The tensioning assembly 30 is disposed between the two clamping pieces 42. When the tensioning assembly 30 tightens the seam end of the two flexible screens 100, the two clamping pieces 42 clamp the two flexible screens 100. By disposing the tensioning assembly 30 in the two clamping pieces 42, the tensioning assembly 30 and the clamping assembly 40 are combined, which saves space and can also achieve tightening and clamping of the seam end of the flexible screen 100, thereby solving the seam problem of the flexible screen 100.

[0039] Furthermore, a fastener 12 is provided on the fixed profile 10, and a slot 421 is provided on the clamping piece 42. One end of the fastener 12 is fixed to the fixed profile 10, and the other end is fastened in the slot 421 to fix the clamping piece 42. There are multiple fasteners 12 and they are spaced apart along the length of the fixed profile 10. After the clamping piece 42 clamps the flexible screen 100 under the action of the hinge 41, it is fixed to the fixed profile 10 by the fastener 12.

[0040] In actual use, the splicing device of this embodiment initially lowers the soft curtain 100 and installs it inside the frame 200. The splicing device is used to splice the ends of adjacent soft curtains 100. First, the position of the U-shaped adjusting block 21 on the fixed profile 10 is adjusted so that the top and bottom of the soft curtain 100 are in a tensioned and fixed state. Then, the splicing end of the soft curtain 100 is inserted into the limiting groove 321 formed by the tensioning member 32. Under the limiting action of the mounting member 31, the tensioning member 32 achieves tensioning and limiting of the splicing end of the soft curtain 100. At the same time, the mounting hinge 41 of the clamping component 40 opens the clamping piece 42 to form a clamping angle for clamping the soft curtain 100. After clamping, the clamping piece 42 is fixed to the fixed profile 10 by the buckle 12.

[0041] While the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0042] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0043] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0044] In summary, the above detailed description is intended to be illustrative rather than restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of the invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of the invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A seaming device for a rear projection flexible screen, for seaming adjacent flexible screens (100), wherein the flexible screens (100) are installed within a frame (200), characterized in that, The seam assembly includes a vertically arranged fixed profile (10), a tensioning assembly (20) for tensioning the top and bottom of the flexible curtain (100), a tensioning assembly (30) for pulling the seam ends of the two flexible curtains (100) together, and a clamping assembly (40) for clamping the seam ends of the two flexible curtains (100). The tensioning components (20) are in two sets and located at both ends of the fixed profile (10). One tensioning component (20) tensions the upper part of the soft screen (100), and the other tensioning component (20) tensions the lower part of the soft screen (100). The tensioning assembly (30) includes a mounting part (31) and a tensioning part (32). The mounting part (31) and the tensioning part (32) are detachably connected. The mounting part (31) is provided with a mounting groove (311) for connecting with the fixed profile (10). The tensioning part (32) is provided with a limiting groove (321) for limiting the end of the soft curtain (100). The clamping assembly (40) includes a mounting hinge (41) and a clamping piece (42). The mounting hinge (41) is disposed on the fixed profile (10). The clamping piece (42) is located at the movable end of the mounting hinge (41). There are two clamping pieces (42) and one side forms a clamping angle to clamp the end of the soft screen (100). The tensioning assembly (30) is disposed between the two clamping pieces (42). When the tensioning assembly (30) tensions the seam ends of the two soft curtains (100), the two clamping pieces (42) clamp the two soft curtains (100). The mounting groove (311) is formed by the fitting of two mounting parts (31); The number of tensioning members (32) is two and they are fitted together. The two tensioning members (32) form a limiting groove (321), which limits the seam ends of the two soft curtains (100). The fixing profile (10) is provided with a buckle (12), and the clamping piece (42) is provided with a slot (421). One end of the buckle (12) is fixed to the fixing profile (10), and the other end is fastened into the slot (421) to fix the clamping piece (42).

2. The seam-seam device for a rear projection flexible screen according to claim 1, characterized in that, The tensioning assembly (20) includes a U-shaped adjusting block (21) and an adjusting screw (22) located on the U-shaped adjusting block (21), the adjusting screw (22) passing through the U-shaped adjusting block (21).

3. The seam-seam device for a rear projection flexible screen according to claim 2, characterized in that, The adjusting screw (22) is connected to the frame (200) via the adjusting member (50) to tighten the soft curtain (100) installed on the frame (200).

4. The seam-seam device for a rear projection flexible screen according to claim 2, characterized in that, Each tensioning assembly (20) has two U-shaped mounting blocks. The two U-shaped mounting blocks are detachably mounted on both sides of the fixed profile (10). The two U-shaped mounting blocks are connected by a connecting piece (60).

5. The seam-seam device for a rear projection flexible screen according to claim 1, characterized in that, The fixing profile (10) is provided with a plurality of springs (11), one end of which is engaged in the mounting groove (311).

6. The seam-seam device for a rear projection flexible screen according to claim 1, characterized in that, The number of the fasteners (12) is multiple and they are spaced apart along the length of the fixing profile (10).

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