Rewinding screen window connector and rewinding screen window

Abstract

The present application relates to the field of construction, and in particular to a rewinding screen window connector and a rewinding screen window, wherein the connector (3) is used to reinforce the rewinding screen window from the outside, and the rewinding screen window comprises a roll box (1) and a lying groove (2), and the connector (3) comprises: a fixing portion (32), the fixing portion (32) being fixed on the lying groove (2); a positioning portion, the positioning portion being used to position the roll box (1); and a main body (31), the main body (31) being used to connect the fixing portion (32) and the positioning portion. The present application designs a connector for the rewinding screen window through a structural design, which is not only simple in structure, but also can play a good auxiliary positioning and fixing function, greatly stabilizes the structural relationship between the roll box and the lying groove, and does not need to worry about structural deformation during use of the rewinding screen window, and has extremely strong practicality.

Description

Technical Field

[0001] The present application relates to the field of construction, and in particular to a rewinding screen window connector and a rewinding screen window. Background Art

[0002] During the use of retractable screens, the constant pulling and rewinding can cause misalignment between the roll-up cassette and the slot. This misalignment not only affects the aesthetics but also creates the risk of the screen contacting the end of the slot. This contact can significantly damage the shape and structure of the screen and produce a loud noise that is unacceptable to the user. In more serious cases, it can also cause deformation at the connection between the roll-up cassette and the slot. Since the roll-up cassette is secured to the slot via plug-in connectors at both ends, misalignment can cause the roll-up cassette to shift or even fall off.

[0003] Especially with the development of e-commerce, the form of screens is also changing. More and more people install them by themselves after receiving the goods. The result of this self-installation is that once there is a problem with the product's lying groove or the fixation between the lying groove and the roll box, it will cause problems with the structural stability of the product, greatly affecting the use of the product. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the above-mentioned prior art.

[0005] To this end, the present application proposes a connecting piece, which is used to reinforce the rewinding screen from the outside. The rewinding screen includes a roll box and a lying groove. The connecting piece includes:

[0006] A fixing portion, the fixing portion being used to be fixed on the lying groove;

[0007] A positioning portion, the positioning portion being used to position the roll box;

[0008] The main body is used to connect the fixing part and the positioning part.

[0009] Furthermore, the fixing portion is a section of the main body extending in the direction of the lying groove, and the fixing portion is fixed to the lying groove by at least one connection method selected from the group consisting of bonding, bolt connection, plug-in connection, and hook-and-groove connection.

[0010] Furthermore, the fixing portion is provided with a step structure for facilitating insertion into the plugging position, and the fixing portion is provided with a barb structure for facilitating hooking into the opening groove.

[0011] Furthermore, the positioning portion includes a positioning plate perpendicular to the main body, and the positioning portion is used to position the roll box from both sides.

[0012] Furthermore, the positioning portion includes a top limiting plate, which is arranged on the upper part of the main body and is used to limit the roll box.

[0013] Furthermore, a limiting rib is provided on a side of the top limiting plate facing the roll box, and the limiting rib is used to be inserted into the limiting groove.

[0014] Furthermore, the connecting member also includes a mushroom head slider, which is used to match the preset L-shaped hole, and the mushroom head slider is used to fix the connecting member to the rewinding screen.

[0015] A rewinding screen window includes the above-mentioned connecting piece, the rewinding screen window includes a roll box and a lying groove connected to the roll box, the connecting piece is fixed to the lying groove through a fixing part, and the main body of the connecting piece is abutted against the back side of the roll box.

[0016] Furthermore, the fixing part is provided with a step structure for facilitating insertion into the plug-in position, the fixing part is provided with a barb structure for facilitating hooking into the opening groove, the lying groove is provided with a positioning groove with a "convex"-shaped notch in cross section, the positioning groove cooperates with the fixing part, the step structure is plugged into the positioning groove, the lying groove is provided with a rectangular hole at the position corresponding to the barb structure, and the barb structure cooperates with the rectangular hole.

[0017] Furthermore, a buckle cover is provided at the end of the roll box, and the buckle cover is provided with a notch groove for embedding into the main body.

[0018] Furthermore, a limiting groove is provided on the top of the roll box, and the positioning part includes a top limiting plate, which is arranged on the upper part of the main body, and is used to limit the roll box. A limiting rib is also provided on the side of the top limiting plate facing the roll box, and the limiting rib is used to cooperate and insert into the limiting groove.

[0019] Furthermore, an L-shaped hole is provided on the back of the roll box, and the connecting piece also includes a mushroom head slider, which is used to match the preset L-shaped hole and fix the connecting piece to the rewinding screen.

[0020] Furthermore, the rewinding screen window also includes a connector, which is plugged into the lying groove and is arranged between the lying groove and the roll box; the connector includes a main board and an outer baffle connected to the main board; the outer baffle is arranged on the outside of the roll box, and the outer baffle abuts the roll box.

[0021] Furthermore, the rewinding screen window also includes a connector and a screen, the connector is plugged into the lying groove, and the connector is arranged between the lying groove and the roll box; the connector includes a main board, and the main board is provided with a chamfer on the side facing the screen.

[0022] This application designs a connecting piece for the rewinding screen window through a structural design. It is not only simple in structure, but also can provide good auxiliary positioning and fixing functions, greatly stabilizing the structural relationship between the roll box and the lying groove, so that the rewinding screen window does not have to worry about structural deformation during use, and has extremely strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a three-dimensional diagram of Example 1 of the present application.

[0025] Figure 2 It is a partial exploded view of Example 1 of the present application.

[0026] Figure 3 It is the three-dimensional structure of the connector in the first embodiment of the present application. Figure 1 .

[0027] Figure 4 It is the three-dimensional structure of the connector in the first embodiment of the present application. Figure 2 .

[0028] Figure 5 This is a partial diagram of Example 2 of the present application.

[0029] Figure 6 It is a three-dimensional diagram of the connecting piece in Example 2 of the present application.

[0030] Figure 7 This is a partial diagram of Example 3 of the present application.

[0031] Figure 8 It is a three-dimensional diagram of the connecting piece in the fourth embodiment of the present application.

[0032] Figure 9 This is part of the fourth embodiment of the present application. Figure 1 .

[0033] Figure 10 This is part of the fourth embodiment of the present application. Figure 2 .

[0034] Figure 11 It is a three-dimensional explosion of the connection relationship of the connector in the embodiment of the present application. Figure 1 .

[0035] Figure 12It is a three-dimensional explosion of the connection relationship of the connector in the embodiment of the present application. Figure 2 .

[0036] Figure 13 It is a three-dimensional diagram of the connector in the embodiment of the present application.

[0037] Figure Number:

[0038] 1. Roll box; 11. Limiting slot; 12. Snap cover; 13. L-shaped hole; 14. Insertion slot; 15. Screen;

[0039] 2. Lying groove; 21. Positioning groove; 22. Rectangular hole;

[0040] 3. Connector; 31. Main body; 32. Fixing part; 321. Step structure; 322. Barb structure; 33. Positioning plate; 34. Top limit plate; 341. Limiting rib; 35. Mushroom head slider; 36. Plug-in plate;

[0041] 5. Connector; 51. Main board; 52. Chamfer; 53. Connecting structure; 54. First plug slot; 55. Second plug slot; 56. Vertical plate; 57. Outer baffle. DETAILED DESCRIPTION

[0042] The following describes embodiments of the present application in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar units or units having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0043] A connecting piece, the connecting piece 3 is used to reinforce the rewinding screen from the outside, the rewinding screen includes a roll box 1 and a lying groove 2, the connecting piece 3 includes:

[0044] A fixing portion 32, the fixing portion 32 being used to be fixed on the lying groove 2;

[0045] A positioning portion, the positioning portion is used to position the roll box 1;

[0046] The main body 31 is used to connect the fixing portion 32 and the positioning portion.

[0047] The fixing portion 32 is a section of the main body 31 extending toward the lying groove 2 , and the fixing portion 32 is fixed to the lying groove 2 by at least one connection method selected from the group consisting of bonding, bolt connection, plug-in connection, and hook-and-groove connection.

[0048] The fixing portion 32 is provided with a step structure 321 for easy insertion into the plugging position, and a barb structure 322 is provided inside the fixing portion 32 for easy hooking into the opening groove.

[0049] The positioning portion includes a positioning plate 33 perpendicular to the main body 31 , and the positioning portion is used to position the roll box 1 from both sides.

[0050] The positioning portion includes a top limiting plate, which is disposed on the upper portion of the main body 31 and is used to limit the roll box 1 .

[0051] A limiting rib 341 is further provided on the side of the top limiting plate facing the roll box 1 , and the limiting rib 341 is used to be inserted into the limiting groove 11 .

[0052] The connecting member 3 further comprises a mushroom head slider 35 , which is used to match the preset L-shaped hole 13 , and the mushroom head slider 35 is used to fix the connecting member 3 to the rewinding screen window.

[0053] A rewinding screen window, comprising a connecting member 3 as described above, comprising a roll box 1 and a lying groove 2 connected to the roll box 1, wherein the connecting member 3 is fixed to the lying groove 2 via a fixing portion 32, and the main body 31 of the connecting member 3 is abutted against the back side of the roll box 1.

[0054] The fixing portion 32 is provided with a step structure 321 for easy insertion into the plug-in position, and the fixing portion 32 is provided with a hook structure 322 for easy hooking into the opening groove, and the lying groove 2 is provided with a positioning groove 21 with a "convex"-shaped notch in cross section, and the positioning groove 21 cooperates with the fixing portion 32, and the step structure 321 is plugged into the positioning groove 21. The lying groove 2 is provided with a rectangular hole 22 at the position corresponding to the hook structure 322, and the hook structure 322 cooperates with the rectangular hole 22.

[0055] The end of the roll box 1 is further provided with a buckle cover 12 , and the buckle cover 12 is provided with a notch groove for embedding into the main body 31 .

[0056] A limiting groove 11 is also provided on the top of the roll box 1, and the positioning part includes a top limiting plate, which is arranged on the upper part of the main body 31. The top limiting plate is used to limit the roll box 1, and a limiting rib 341 is also provided on the side of the top limiting plate facing the roll box 1. The limiting rib 341 is used to cooperate with and insert into the limiting groove 11.

[0057] The back of the roll box 1 is also provided with an L-shaped hole 13, and the connecting member 3 also includes a mushroom head slider 35, which is used to cooperate with the preset L-shaped hole 13, and the mushroom head slider 35 is used to fix the connecting member 3 to the rewinding screen.

[0058] The connecting member 3 is used to reinforce the rewinding screen from the outside, which means that the connecting member 3 is different from the structure of the winding box 1 with both ends plugged into the lying groove 2. The connecting member 3 is a component specifically used to reinforce the rewinding screen.

[0059] The step structure 321 means that the thickness of the two sides of the fixing portion 32 is lower than that of the middle portion, which facilitates the insertion of the fixing portion 32 into the predetermined insertion position. This thickness reduction can be on the side facing the lying groove 2 or on the side facing away from the lying groove 2, depending on the cross-sectional design of the insertion position. The drawings of this application show the reduced thickness on the side facing away from the lying groove 2. This has the advantage of maximizing the contact area between the fixing portion 32 and the lying groove 2, reducing instability caused by machining errors.

[0060] The orientations mentioned in this application all refer to the situation where the rewinding screen box 1 is at the top after installation. Of course, there may also be a situation where the rewinding screen box 1 is on one side during installation. In this case, the side of the rewinding screen box 1 is considered to be at the top, which is considered a rotation of the above situation, and the description of the overall orientation continues with the above situation.

[0061] The back side of the roll box 1 refers to the side of the roll box 1 facing the surface to be installed.

[0062] Example 1: From Figure 1 It can be seen how the connecting member 3 mentioned above cooperates with the rewinding screen. Figure 1 The figure also shows the overall state of the assembled device. The rewinding screen includes a roll box 1, a recess 2 connected to the roll box 1, and a pull-down bar connected to the screen within the roll box 1. The pull-down bar slides up and down along the preset sliding groove of the recess 2. The rewinding screen also includes a connector 3, which is disposed on the back of the rewinding screen. That is, the connector 3 is disposed on one side of the rewinding screen that abuts the mounting position. Buckle covers 12 are provided at both ends of the roll box 1.

[0063] In this embodiment, the connecting member 3 includes a main body 31, a fixing portion 32, and a positioning portion. The main body 31 is connected to the fixing portion 32 and the positioning portion. Figure 2-4 The structure of the connecting member 3 in this application can be seen in FIG.

[0064] The fixing portion 32 is a plate extending from the main body 31. Its width matches the positioning slot 21 on the back of the lying groove 2. A stepped structure 321 is provided where the fixing portion 32 inserts into the positioning slot 21. This not only facilitates insertion of the fixing portion 32 into the positioning slot 21, but also ensures the overall thickness of the fixing portion 32, thus ensuring a strong connection between the fixing portion 32 and the main body 31. This arrangement also ensures that the surfaces of the fixing portion 32 and the positioning slot 21 are roughly flush after insertion, minimizing the impact of the fixing portion 32 on the back of the rewinding screen during installation.

[0065] A barb structure 322 is also provided in the middle of the fixing portion 32. A rectangular hole 22 is also provided in the recess 2 at a position that mates with the barb structure 322. During installation, the fixing portion 32 is inserted into the positioning slot 21, causing the barb structure 322 to slightly deform. When the fixing portion 32 is inserted into the rectangular hole 22, the barb structure 322 engages the rectangular hole 22 under elastic force, preventing the fixing portion 32 from disengaging from the recess 2 due to the abutment between the barb structure 322 and the rectangular hole 22.

[0066] The positioning portion includes a positioning plate 33 and a top limiting plate. The positioning plate 33 is provided on the side of the connecting member 3 and is used to limit or fix the roll box 1 from the side. Since the connecting member 3 is generally provided in pairs, when the positioning plates 33 on both sides work together, they limit or fix the two sides of the roll box 1. This design is particularly important when the rewinding screen is installed horizontally. The horizontal installation means that, compared to the ordinary installation, the direction of the rewinding screen is not vertically upward, but toward the two sides of the window.

[0067] The top limiting plate is a plate extending from the top of the main body 31 and having a certain elasticity or deformation ability. The top limiting plate is used to have a certain limiting effect on the roll box 1 from the top of the roll box 1. In this embodiment, the top limiting plate can be regarded as a spring sheet, which is arranged at the top of the main body 31 and has a certain elasticity. During installation, the roll box 1 can be embedded in the limited area of ​​the top limiting plate. In order to better limit the roll box 1 and ensure uniform force, the area where the top limiting plate and the roll box 1 may contact is also designed to be an arc-shaped plate that matches the outer contour of the roll box 1. In order to strengthen the limiting strength of the top limiting plate on the roll box 1, a limiting rib 341 is further provided on the side of the top limiting plate facing the roll box 1, and a limiting groove 11 that cooperates with the limiting rib 341 is also provided on the top of the roll box 1. The limiting rib 341 is as shown in FIG. Figure 3 、 Figure 4 、 Figure 6 shown.

[0068] Example 2: This application is implemented as follows Figure 5 and Figure 6 As shown. Compared with the first embodiment, the embodiment of the present application directly replaces the positioning plate 33 by the cooperation between the main body 31 and the buckle cover 12. In this embodiment, the back of the buckle cover 12 is provided with a notch groove that cooperates with the main body 31. The notch groove is not pointed out in the figure, but it can be seen from the Figure 5 As can be seen in the figure, after the main body 31 is inserted into the snap cover 12, the main body 31 and the snap cover 12 can remain substantially flush. The position that accommodates the main body 31 is the notch. It should be noted that the notch that accommodates the main body 31 abuts the main body 31 in the horizontal direction. This is to ensure that the main body 31 can limit the horizontal position of the snap cover 12.

[0069] The difference between this embodiment and the first embodiment is that the shape of the top limiting plate is changed. In the embodiment of the present application, the limiting rib 341 is directly used to cooperate with the limiting groove 11 to position the roll box 1.

[0070] Example 3: This application is implemented as follows Figure 7 The difference between the embodiment of the present application and the second embodiment is that the top limiting plate structure of the first embodiment is used.

[0071] Example 4: This application is implemented as follows Figure 8 、 Figure 9 、 Figure 10 . The difference between this embodiment and the second and third embodiments is that the positioning portion in the embodiment of the present application is not provided with a top limit plate, but is replaced by a plug-in plate 36, and the corresponding roll box 1 is provided with a plug-in slot 14 for plugging in the plug-in plate 36. In addition, in order to ensure the firm positioning, the present application is also provided with a mushroom head slider 35, and the corresponding roll box 1 is also provided with an L-shaped hole 13. At the same time, since the present application adopts the structure of the mushroom head slider 35, the requirement for whether the buckle cover 12 is matched with the main body 31 is not very strong, that is, this embodiment can continue the matching design of the main body 31 and the buckle cover 12 described in the second and third embodiments, and can also continue the setting of the main body 31 described in the first embodiment. It is conceivable that the design of the main body 31 in the embodiment of the present application can also be in other forms.

[0072] This application also relates to another accessory that can be applied to any of the above embodiments. When applied to the rewinding screen window, this accessory can, on the one hand, prevent the rewinding box from falling when the rewinding screen window is installed horizontally, and on the other hand, prevent scratches.

[0073] The specific solution is as follows: the rewinding screen also includes a connector 5, which is plugged into the lying groove, and the connector 5 is arranged between the lying groove and the roll box; the connector 5 includes a main board 51, and an outer baffle 57 connected to the main board 51; the outer baffle 57 is arranged on the outside of the roll box, and the outer baffle 57 abuts the roll box. The main board 51 is provided with a chamfer 52 on the side facing the screen 15, and the chamfer 52 can prevent the screen 15 passing through here from being scratched. Generally, in order to ensure this effect, the main board 51 is smaller than the internal range enclosed by the lying groove. That is, the main board 51 goes deep into the area enclosed by the lying groove. It is conceivable that the chamfer 52 structure on the main board 51 is arranged on the upper surface of the main board 51, such as Figure 13 shown.

[0074] It can also be seen from the figure that the bottom of the connector 5 is also provided with a plug-in structure 53. This plug-in structure 53 is used to better match the connector 5 with the lying groove. In addition, the connector 5 is also provided with a vertical plate 56. The vertical plate 56 and the plug-in structure 53 are inserted into the lying groove together. The vertical plate 56 is arranged below the outer baffle 57. Further, in order to match the lying groove structure, the bottom of the connector 5 is also provided with a first plug-in groove 54. The first plug-in groove 54 is used to accommodate the edge of the lying groove. The connector 5 is also provided with a second plug-in groove 55. The second plug-in groove 55 is used to match the fixing portion of the connector. Here, the second plug-in groove 55 not only serves to avoid the fixing portion, but also serves to assist in positioning the fixing portion.

[0075] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure or unit 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. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0076] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0077] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A connector, characterized in that: The connecting member (3) is used to reinforce the rewinding screen window from the outside, the rewinding screen window comprises a roll box (1) and a lying groove (2), and the connecting member (3) comprises: a fixing portion (32), the fixing portion (32) being used to be fixed on the lying groove (2); A positioning portion, the positioning portion being used to position the roll box (1); a main body portion (31), the main body portion (31) being used to connect the fixing portion (32) and the positioning portion; The positioning portion includes a positioning plate (33) perpendicular to the main body (31), and the positioning portion is used to position the roll box (1) from both sides. The positioning portion comprises a top limiting plate (34), which is arranged on the upper portion of the main body (31), and is used to limit the roll box (1).

2. The connector according to claim 1, wherein: The fixing portion (32) is a section of the main body (31) extending in the direction of the lying groove (2), and the fixing portion (32) is fixed to the lying groove (2) by at least one connection method of bonding, bolt connection, plug connection, and hook-and-groove connection.

3. The connector according to claim 1, wherein: The fixing portion (32) is provided with a step structure (321) for facilitating insertion into the insertion position, and a barb structure (322) is provided inside the fixing portion (32) for facilitating hooking into the opening groove.

4. The connector (3) according to any one of claims 1 to 3, characterized in that: The positioning portion comprises a top limiting plate (34), and a limiting rib (341) is further provided on a side of the top limiting plate (34) facing the roll box (1), and the limiting rib (341) is used to be inserted into the limiting groove (11).

5. The connector according to any one of claims 1 to 3, characterized in that: The connecting member (3) further comprises a mushroom head slide buckle (35), wherein the mushroom head slide buckle (35) is used to match the preset L-shaped hole (13), and the mushroom head slide buckle (35) is used to fix the connecting member (3) to the rewinding screen window.

6. A rewinding screen window, characterized in that: The rewinding screen window includes the connecting member (3) described in any one of claims 1 to 5 above, and the rewinding screen window includes a roll box (1) and a lying groove (2) connected to the roll box (1), the connecting member (3) is fixed to the lying groove (2) through a fixing portion (32), and the main body (31) of the connecting member (3) is abutted against the back side of the roll box (1).

7. The rewinding screen window according to claim 6, characterized in that: The fixing portion (32) is provided with a step structure (321) for facilitating insertion into the insertion position, the fixing portion (32) is provided with a barb structure (322) for facilitating hooking into the opening groove, the lying groove (2) is provided with a positioning groove (21) with a "convex"-shaped notch in cross section, the positioning groove (21) cooperates with the fixing portion (32), the step structure (321) is plugged into the positioning groove (21), the lying groove (2) is provided with a rectangular hole (22) at a position corresponding to the barb structure (322), and the barb structure (322) cooperates with the rectangular hole (22).

8. The rewinding screen window according to claim 6, characterized in that: The end of the roll box (1) is further provided with a buckle cover (12), and the buckle cover (12) is provided with a notch groove for embedding into the main body (31).

9. The rewinding screen window according to claim 6, characterized in that: The top of the roll box (1) is also provided with a limiting groove (11), and the positioning part includes a top limiting plate (34), and the top limiting plate (34) is arranged on the upper part of the main body (31). The top limiting plate (34) is used to limit the roll box (1), and the side of the top limiting plate (34) facing the roll box (1) is also provided with a limiting rib (341), and the limiting rib (341) is used to cooperate and insert into the limiting groove (11).

10. The rewinding screen window according to claim 6, characterized in that: The back of the roll box (1) is also provided with an L-shaped hole (13), and the connecting member (3) further comprises a mushroom head slide buckle (35), wherein the mushroom head slide buckle (35) is used to match the preset L-shaped hole (13), and the mushroom head slide buckle (35) is used to fix the connecting member (3) to the rewinding screen window.

11. The rewinding screen window according to claim 6, characterized in that: The rewinding screen window further comprises a plug-in connector (5), the plug-in connector (5) being plugged into the lying groove (2), and the plug-in connector (5) being arranged between the lying groove (2) and the roll-up box (1); the plug-in connector (5) comprising a main board (51) and an outer baffle (57) connected to the main board (51); the outer baffle (57) being arranged outside the roll-up box (1), and the outer baffle (57) being in contact with the roll-up box (1).

12. The rewinding screen window according to claim 6, characterized in that: The rewinding screen window further comprises a connector (5) and a screen (15); the connector (5) is plugged into the lying groove (2); the connector (5) is arranged between the lying groove (2) and the roll box (1); the connector (5) comprises a main board (51); a chamfer (52) is provided on the side of the main board (51) facing the screen (15).

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