Projection curtain adjusting structure

Abstract

The utility model discloses a projection curtain adjusting structure which comprises a frame. The connecting piece is used for being connected with one end of the soft screen; and the moving module has a locking function, connects the connecting piece with the frame, and can adjust the connecting piece to move for any distance relative to the frame along a first direction parallel to a plane where the soft screen is unfolded and lock the connecting piece. After the soft screen is installed on the frame, the moving distance of the connecting piece relative to the frame in the first direction can be adjusted through the moving module, the connecting piece can be locked relative to the frame in the first direction through the moving module after the soft screen is in the tensioning state, and the soft screen is not ensured to be in the tensioning state through the elastic force of the spring, so that the connecting piece is locked. And the soft screen cannot be loosened due to attenuation of the elastic force, so that the soft screen can be ensured to be stably in a tensioned state.

Description

Technical Field

[0001] The utility model relates to the technical field of projection screens, and particularly relates to an adjustment structure for a projection screen. Background Art

[0002] In recent years, laser TVs have seen a rising market share year by year due to their advantages such as large screens and high brightness. Currently, the screens of laser TVs on the market are mainly divided into two types: hard screens and soft screens. A hard screen is formed by pasting a projection screen on a hard board and installing a frame. Its advantage is stronger integrity, but its size and volume are relatively large, making it difficult to enter households. A soft screen is convenient for transportation and entering households. When transporting and entering households, the soft screen is generally rolled up. Therefore, when installing the soft screen, it needs to be unfolded. For this reason, a corresponding frame is generally required for the soft screen. At the same time, in order to ensure that the soft screen is flat and wrinkle-free after being installed on the frame, the soft screen is generally tensioned by springs arranged on the frame.

[0003] However, after long-term use, the elasticity of the spring will decay, resulting in the inability to keep the soft screen in a tensioned state for a long time. That is, the soft screen installed on the frame by the existing method will not meet the flatness requirements due to the inability to be tensioned after long-term use, affecting the user experience.

[0004] Therefore, how to ensure that the soft screen is in a tensioned state for a long time is of great significance for the popularization of soft screens. Summary of the Utility Model

[0005] To solve at least one of the above problems, according to one aspect of the present utility model, an adjustment structure for a projection screen is provided.

[0006] The adjustment structure for the projection screen includes a frame; a connecting member for connecting to one end of the soft screen; and a moving module with a locking function that connects the connecting member to the frame and can adjust the relative movement of the connecting member with respect to the frame in any distance in a first direction parallel to the plane in which the soft screen unfolds and lock it.

[0007] Thus, after the soft screen is installed on the frame, the distance of the relative movement of the connecting member with respect to the frame in the first direction can be adjusted through the moving module, and after the soft screen is in a tensioned state, the connecting member can be locked with respect to the frame in the first direction through the moving module, so as to lock the connecting member with respect to the frame in the first direction. Moreover, since the soft screen is not kept in a tensioned state by the elastic force of the spring, the soft screen will not slack due to the decay of the elastic force, thereby ensuring that the soft screen can be stably in a tensioned state.

[0008] In some embodiments, the mobile module includes a first mounting member, which is arranged on the connecting member; a second mounting member, which is arranged on the frame; and a bolt, which realizes the connection between the first mounting member and the second mounting member by threaded connection with at least one of the first mounting member and the second mounting member, so as to adjust the connecting member to move any distance relative to the frame in the first direction and lock it. Preferably, the bolt is arranged along the first direction.

[0009] Thus, the distance between the first mounting member provided on the connecting member and the second mounting member provided on the frame can be adjusted by rotating the bolt; and, since the bolt is threadedly connected to at least one of the first mounting member and the second mounting member, after adjusting the first mounting member to move any distance relative to the second mounting member by rotating the bolt, it can be locked by threading the bolt to at least one of the first mounting member and the second mounting member.

[0010] In some embodiments, one of the first mounting member and the second mounting member is provided with a screw hole adapted to the bolt, and the other is provided with a through hole adapted to the bolt, and the bolt passes through the through hole and the screw hole to connect the first mounting member to the second mounting member; the screw hole and the through hole are arranged on the side of the connecting member away from the plane where the soft screen is unfolded. Thus, by arranging the positions of the screw hole, the through hole and the bolt, there is less obstruction when the bolt is rotated.

[0011] In some embodiments, the head of the bolt is located on the side of the first mounting member that is away from the second mounting member; the through hole is provided on the first mounting member; and the screw hole is provided on the second mounting member, so that there is less obstruction when the bolt is rotated.

[0012] In some embodiments, the connecting member is disposed on a side of the frame away from the plane where the soft screen is unfolded. Thus, when the connecting member is adjusted to move relative to the frame by the mobile module, the obstruction of the soft screen can be reduced, so as to facilitate the adjustment of the relative movement between the connecting member and the frame.

[0013] In some embodiments, the mobile module also includes a first moving structure, through which the first mounting member is arranged on the connecting member, so that the first mounting member can move relative to the connecting member along a second direction parallel to the plane in which the soft screen is unfolded; and / or a second moving structure, through which the second mounting member is arranged on the frame, so that the second mounting member can move relative to the frame along a second direction parallel to the plane in which the soft screen is unfolded.

[0014] Therefore, the first movable structure and / or the second movable structure can also drive the connecting member to move relative to the frame along the second direction to adjust the expansion degree of the soft screen in the second direction.

[0015] In some embodiments, the second direction is perpendicular to the first direction. Thus, the tension of the flexible screen can be achieved by moving the connecting member of the moving structure relative to the frame by the minimum distance, improving the efficiency of adjusting the tension of the flexible screen.

[0016] In some embodiments, the first moving structure includes a first sliding groove arranged along the second direction and a first sliding block adapted to the first sliding groove. One of the first sliding groove and the first sliding block is arranged on the connecting member, and the other is arranged on the first mounting member; and / or the second moving structure includes a second sliding groove arranged along the second direction and a second sliding block adapted to the second sliding groove. One of the second sliding groove and the second sliding block is arranged on the frame, and the other is arranged on the second mounting member.

[0017] Thus, using profiles or blocks with a sliding groove structure can implement the moving structure of the present invention, making the structure of the moving structure simple and achieving the purpose of cost savings.

[0018] In some embodiments, the first sliding groove is a T-shaped sliding groove, and the first sliding block is a T-shaped sliding block adapted to the T-shaped sliding groove; and / or the first sliding groove is arranged on the connecting member, and its opening faces away from the opening where the flexible screen extends. Thus, while the first sliding block moves relative to the first sliding groove along the second direction, the first sliding block can be prevented from disengaging from the first sliding groove.

[0019] In some embodiments, the first sliding groove is arranged on the connecting member, and its opening is arranged along the first direction and towards the direction of the second mounting member; and / or the second sliding groove is arranged on the frame, and its opening is arranged along the first direction and towards the direction away from the first mounting member. Thus, the sliding block can be locked in the sliding groove or unlocked from the sliding groove by rotating the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a projection screen adjustment structure according to an embodiment of the present invention;

[0021] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the projection screen adjustment structure shown;

[0022] Figure 3 is Figure 1 a schematic structural diagram of another perspective of the projection screen adjustment structure shown;

[0023] Figure 4 is a schematic structural diagram of a projection screen adjustment structure according to another embodiment of the present invention;

[0024] Reference numerals: 20, frame; 30, connecting member; 40, moving module; 41, first mounting member; 411, through hole; 42, second mounting member; 421, threaded hole; 43, bolt; 431, head; 44, first moving structure; 441, first sliding groove; 442, first slider; 45, second moving structure; 451, second sliding groove; 452, second slider; 50, flexible screen; 51, accommodation space; 60, rod body. Detailed implementation manners

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0026] It should also be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "comprising" and "including", not only include those elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the existence of other identical elements in the process, method, article or device including the said elements. The terms used in this text are generally the commonly used terms in the art. If they are inconsistent with the commonly used terms, the terms in this text shall prevail.

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Figures 1 to 4 Schematically shows a projection screen adjustment structure according to at least one embodiment of the present utility model.

[0029] Among them, Figures 1 to 3 Schematically shows a projection screen adjustment structure according to an embodiment of the present utility model. As Figure 2As shown, the projection screen adjustment structure includes a frame 20, a connecting member 30, a first mounting member 41, a second mounting member 42, and a bolt 43. The first mounting member 41 is provided on the connecting member 30, which can be achieved by a connection relationship or by integral molding. The connecting member 30 is used to connect one end of the soft screen 50. For example, the connecting member 30 is provided with a receiving cavity for receiving the rotating shaft of the soft screen 50 and an opening for communicating the receiving cavity with the outside for the soft screen 50 to extend out; one end of the soft screen 50 is provided with a receiving space 51 for receiving the rod body 60. The rod body 60 can extend into the receiving space 51 from an opening at one end of the receiving space 51. The soft screen 50 with the rod body 60 received therein can extend into the receiving cavity of the connecting member 30 from the axial opening of the receiving cavity of the connecting member 30, so that the rod body 60 is located in the receiving cavity of the connecting member 30, and at the same time, it is ensured that the diameter of the rod body 60 is greater than the width of the opening for the soft screen 50 to extend out of the receiving cavity of the connecting member 30, so as to prevent the soft screen 50 connected to the rod body 60 from disengaging from the opening for the soft screen 50 to extend out of the receiving cavity of the connecting member 30, thereby realizing the connection (which can be a detachable connection) between the connecting member 30 and one end of the soft screen 50. The second connecting member 30 is provided on the frame 20, which can be achieved by a connection relationship or by integral molding. The frame 20 can be a frame 20 commonly used in the prior art for supporting the soft screen 50, and the specific structure of the frame 20 is not limited in the present invention. A through hole 411 adapted to the nail part of the bolt 43 is integrally formed or processed on the first mounting member 41. A threaded hole 421 adapted to the nail part of the bolt 43 is processed on the second mounting member 42. After the bolt 43 passes through the through hole 411 on the first mounting member 41 and is threadedly connected to the threaded hole 421 on the second mounting member 42, the connection between the first mounting member 41 and the second mounting member 42 is realized. The first mounting member 41, the second mounting member 42, the through hole 411, the threaded hole 421, and the bolt 43 together constitute a moving module 40 with a locking function in an embodiment of the present invention. The moving module 40 can connect the connecting member 30 and the frame 20 and can adjust the movement of the connecting member 30 by any distance in a first direction X parallel to the plane in which the soft screen 50 is unfolded and lock it.

[0030] In some other embodiments, the threaded hole 421 is processed on the first mounting member 41, and the through hole 411 is not processed on the first mounting member 41; the through hole 411 is integrally formed or processed on the second mounting member 42, and the threaded hole 421 is not processed on the second mounting member 42.

[0031] In yet another embodiment, the threaded hole 421 is processed on both the first mounting member 41 and the second mounting member 42, and the through hole 411 is not provided on the first mounting member 41 and the second mounting member 42.

[0032] In another embodiment, the first mounting member 41 and the second mounting member 42 are processed or integrally formed with a through hole 411, and the first mounting member 41 and the second mounting member 42 are not processed with a screw hole 421, and the bolt 43 passes through the through hole 411 on the first mounting member 41 and the second mounting member 42 and is connected with a nut.

[0033] Therefore, when the soft screen 50 needs to be installed on the frame 20, first, the rotating shaft of the soft screen 50 is placed in the accommodating cavity of the connecting member 30, and the end of the soft screen 50 opposite to the rotating shaft is extended from the opening of the connecting member 30 connected to the accommodating cavity, and the soft screen 50 extended from the opening of the connecting member 30 is passed around the surface of the frame 20; the frame 20 can be, for example, a rectangular frame 20, and the soft screen 50 can be fixed on the frame 20 at one end, and the opposite end can be set on the frame 20 through the connecting member 30, or both ends can be respectively set on the frame 20 through the connecting members 30 0; then, by rotating the bolt 43, the first mounting member 41 can be used to drive the connecting member 30 to move relative to the second mounting member 42 on the frame 20, so as to drive the soft screen 50 to move relative to the frame 20 along the first direction; when the soft screen 50 is moved into place (the soft screen 50 is in a tensioned state), the bolt 43 is stopped from being rotated. Since the bolt 43 is threadedly connected to the second mounting member 42 through the screw hole 421 on the second mounting member 42, the bolt 43 is stopped from being rotated, so that the connecting member 30 and the first mounting member 41 can be locked relative to the frame 20 in the first direction. Since the utility model does not ensure that the soft screen 50 is in a tensioned state by the elastic force of the spring, the soft screen 50 will not relax due to the attenuation of the elastic force, thereby ensuring that the soft screen 50 can be stably in a tensioned state.

[0034] In some preferred embodiments, Figures 1 to 3 As shown, the bolt 43 is arranged along the first direction X. Since the extension direction of the bolt 43 is consistent with the tensioning direction of the soft screen 50 , the soft screen 50 can be driven to move a corresponding distance by rotating the bolt 43 for a minimum movement, thereby improving the adjustment efficiency of the soft screen 50 .

[0035] In some preferred embodiments, Figures 1 to 3 As shown, the screw hole 421 and the through hole 411 are arranged on one side of the connecting member 30 away from the plane where the soft screen 50 is unfolded. Thus, by arranging the positions of the screw hole 421, the through hole 411 and the bolt 43, there is less obstruction when the bolt 43 is rotated.

[0036] In some preferred embodiments, Figures 1 to 3 As shown, the head 431 of the bolt 43 is located on the side of the first mounting member 41 away from the second mounting member 42. Thus, there is less obstruction when the bolt 43 is rotated.

[0037] In some preferred embodiments, Figures 1 to 3As shown, the connecting member 30 is arranged on the side of the frame 20 away from the plane where the soft screen 50 is unfolded. Thus, when the connecting member 30 is adjusted to move relative to the frame 20 by the moving module 40, the obstruction of the soft screen 50 can be reduced, so as to facilitate the adjustment of the relative movement between the connecting member 30 and the frame 20.

[0038] In some preferred embodiments, Figure 2 As shown, the mobile module 40 also includes a first slide groove 441 and a first slider 442 adapted to the first slide groove 441; the first slide groove 441 is arranged along a second direction parallel to the plane on which the soft screen 50 is unfolded; the first slide groove 441 is integrally formed or processed on the connecting member 30, and the first slider 442 is integrally formed or processed on the first mounting member 41. The first slide groove 441 and the first slider 442 constitute the first moving structure 44 of an embodiment of the utility model. Thus, the first mounting member 41 can move relative to the connecting member 30 along the second direction Y, and the second direction Y is not parallel to the first direction X.

[0039] In other preferred embodiments, the mobile module 40 also includes a first slide groove 441 arranged along the second direction and a first slider 442 adapted to the first slide groove 441, the first slide groove 441 is integrally formed or processed on the first mounting member 41, and the first slider 442 is integrally formed or processed on the connecting member 30.

[0040] In some preferred embodiments, Figure 2 As shown, the mobile module 40 also includes a second slide groove 451 and a second slider 452 adapted to the second slide groove 451; the second slide groove 451 is arranged along a second direction parallel to the plane in which the soft screen 50 is unfolded; the second slide groove 451 is integrally formed or processed on the frame 20, and the second slider 452 is integrally formed or processed on the second mounting member 42. The second slide groove 451 and the second slider 452 constitute the second moving structure 45 of an embodiment of the utility model. Thus, the second mounting member 42 can move relative to the frame 20 along the second direction Y, and the second direction Y is not parallel to the first direction X.

[0041] In other preferred embodiments, the mobile module 40 also includes a second slide groove 451 arranged along the second direction and a second slider 452 adapted to the second slide groove 451, the second slide groove 451 is integrally formed or processed on the second mounting member 42, and the second slider 452 is integrally formed or processed on the frame 20.

[0042] When the moving module 40 further includes the first moving structure 44 and / or the second moving structure 45, the connecting member 30 can also be driven to move relative to the frame 20 in the second direction by the first moving structure 44 and / or the second moving structure 45, so as to adjust the unfolding degree of the flexible screen 50 in the second direction. Moreover, using profiles or blocks with chute structures can implement the moving structure of the present utility model, making the structure of the moving structure simple and achieving the purpose of cost saving.

[0043] In some preferred embodiments, the second direction is perpendicular to the first direction. Thus, the flexible screen 50 can be tensioned with the minimum distance of the relative movement of the connecting member 30 relative to the frame 20 by the moving structure, improving the efficiency of the tension adjustment of the flexible screen 50.

[0044] In some preferred embodiments, as Figure 2 shown, the first chute 441 is a T-shaped chute, and the first slider 442 is a T-shaped slider adapted to the T-shaped chute. Thus, while the first slider 442 moves relative to the first chute 441 in the second direction, the first slider 442 can be prevented from disengaging from the first chute 441.

[0045] In some preferred embodiments, the second chute 451 and the second slider 452 can also be arranged in a T-shaped structure with reference to the first chute 441 and the first chute 441 to prevent the second slider 452 from disengaging from the second chute 451.

[0046] In some preferred embodiments, as Figure 2 shown, the first chute 441 is provided on the connecting member 30, and its opening faces away from the opening where the flexible screen 50 extends. Thus, when the first mounting member 41 drives the connecting member 30 to move in the first direction, the flexible screen 50 can be driven to move synchronously to achieve the tensioning of the flexible screen 50.

[0047] In some preferred embodiments, as Figure 2 shown, the first chute 441 is provided on the connecting member 30, and its opening is arranged along the first direction and towards the direction of the second mounting member 42; and / or the second chute 451 is provided on the frame 20, and its opening is arranged along the first direction and towards the direction away from the first mounting member 41. Thus, the slider can be locked in the chute or unlocked from the chute by rotating the bolt 43.

[0048] As another embodiment of the moving module 40, the moving module 40 includes a cylinder, an oil cylinder or a linear motor capable of driving the connecting member 30 to move relative to the frame 20 in the first direction.

[0049] As another embodiment of the first moving structure 44, the first moving structure 44 can also be implemented as a lead screw pivotally arranged on the connecting member 30, and a nut arranged on the first mounting member 41 and adapted to the lead screw. The first lead screw is arranged along the second direction. Thus, by rotating the lead screw, the nut and the first mounting member 41 can be driven to reciprocate along the extending direction of the first lead screw.

[0050] As another embodiment of the second moving structure 45, the second moving structure 45 can also be implemented as a lead screw pivotally arranged on the frame 20, and a nut arranged on the second mounting member 42 and adapted to the lead screw. The first lead screw is arranged along the second direction. Thus, by rotating the lead screw, the nut and the second mounting member 42 can be driven to reciprocate along the extending direction of the first lead screw.

[0051] Figure 4 Schematically shows a projection screen adjustment structure according to another embodiment of the present invention. The difference between the projection screen adjustment structure of this embodiment and that of the previous embodiment is that at least two groups of moving modules 40 are provided in the moving module 40 of this embodiment, and at least two groups of moving modules 40 are arranged along the second direction Y to improve the stability of the moving module 40 driving the connecting member 30 to move relative to the frame 20.

[0052] In the present invention, the connection or installation is a fixed connection without special emphasis. The fixed connection can be implemented as a detachable connection or a non-detachable connection commonly used in the prior art. The detachable connection can be achieved by the prior art, such as threaded connection or key connection. The non-detachable connection can also be achieved by the prior art, such as welding or gluing.

[0053] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims

1. Projection screen adjustment structure, characterized in that, include: frame; A connector, used for connecting with one end of the soft screen; and a moving module with a locking function, which connects the connecting member to the frame and can adjust the connecting member to move any distance relative to the frame and lock it along a first direction parallel to the plane where the soft screen is unfolded.

2. The projection screen adjustment structure according to claim 1, characterized in that The mobile module comprises: A first mounting member, which is arranged on the connecting member; a second mounting member disposed on the frame; and a bolt, which realizes the connection between the first mounting member and the second mounting member by threaded connection with at least one of the first mounting member and the second mounting member, so that the connecting member can be adjusted along the first direction to move any distance relative to the frame and locked.

3. The projection screen adjustment structure according to claim 2, wherein One of the first mounting member and the second mounting member is provided with a screw hole adapted to the bolt, and the other is provided with a through hole adapted to the bolt, and the bolt passes through the through hole and the screw hole to connect the first mounting member with the second mounting member; The screw hole and the through hole are arranged on a side of the connecting member that is away from the plane where the soft screen is unfolded.

4. The projection screen adjustment structure according to claim 3, characterized in that, The head of the bolt is located on a side of the first mounting member facing away from the second mounting member; The through hole is provided on the first mounting member; The screw hole is arranged on the second mounting member.

5. The projection screen adjustment structure according to any one of claims 2 to 4, characterized in that, The connecting piece is arranged on a side of the frame which is away from the plane where the soft screen is unfolded.

6. The projection screen adjustment structure according to claim 5, characterized in that The mobile module also includes: a first moving structure, wherein the first mounting member is arranged on the connecting member through the first moving structure, so that the first mounting member can move relative to the connecting member along a second direction parallel to the plane on which the soft screen is unfolded; and / or A second movable structure, wherein the second mounting member is arranged on the frame through the second movable structure, so that the second mounting member can move relative to the frame along a second direction parallel to the plane where the soft screen is unfolded.

7. The projection screen adjustment structure according to claim 6, wherein, The second direction is perpendicular to the first direction.

8. The projection screen adjustment structure according to claim 6, characterized in that, The first moving structure comprises a first slide groove arranged along the second direction and a first slider matched with the first slide groove, one of the first slide groove and the first slider is arranged on the connecting member, and the other is arranged on the first mounting member; and / or The second movable structure includes a second slide groove arranged along the second direction and a second sliding block adapted to the second slide groove, one of the second slide groove and the second sliding block is arranged on the frame, and the other is arranged on the second mounting member.

9. The projection screen adjustment structure according to claim 8, characterized in that The first slide groove is a T-shaped slide groove, and the first slider is a T-shaped slider adapted to the T-shaped slide groove; and / or The first slide groove is arranged on the connecting member, and its opening is away from the opening through which the soft screen extends.

10. The projection screen adjustment structure according to claim 8, characterized in that, The first slide groove is arranged on the connecting member, and its opening is arranged along the first direction and toward the direction of the second mounting member; and / or The second slide slot is arranged on the frame, and an opening thereof is arranged along a first direction and in a direction away from the first mounting member.

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