Low orbit sliding type wind pressure resistant invisible screen

Abstract

This utility model provides a low-track sliding wind-pressure resistant invisible screen window, belonging to the technical field of invisible screen windows. The low-track sliding wind-pressure resistant invisible screen window includes an outer frame; a mounting bracket, with the inner surface of the outer frame slidably connected to the inner surface of the outer frame; and a winding mechanism, including a winding groove, which is opened on one inner wall of the mounting bracket. Rotating rods are rotatably connected to the upper and lower inner walls of the winding groove. This reduces the displacement impact of strong winds on the screen window, improves positioning stability and sealing, and avoids the screen window easily shifting or detaching from the track when encountering strong winds after unfolding. It also solves the problem of needing to raise the track to accommodate the screen winding mechanism, which damages the overall aesthetics of the door and window. It reduces the phenomenon of dust accumulation and tripping on high tracks, and avoids the problem of lack of rolling support, high frictional resistance, and easy jamming in push-pull structures after long-term use.

Description

Technical Field

[0001] This utility model belongs to the field of invisible screen technology, specifically relating to a low-track sliding wind pressure resistant invisible screen. Background Technology

[0002] Retractable screens are a common type of window screen. Through a specific process, the screen mesh is wound onto a roller and placed inside a screen box. The roller serves as the core of the screen mesh. One end of the roller is connected to a bearing on the end cap of the screen box via a torsion spring, and the other end is connected to a bearing on the end cap via a rotating wheel. In use, the screen mesh is manually pulled out to a preset position and secured with fasteners. When not in use, the connection between the screen mesh and the fasteners is released, and the screen mesh is rewound onto the core roller and returned to the screen box under the action of the torsion spring.

[0003] Existing invisible screens have weak wind pressure resistance. When the screen is unfolded, it is easy for it to shift or fall off the track when encountering strong winds, affecting the sealing performance. At the same time, in order to accommodate the screen retraction mechanism, the track needs to be raised, which damages the overall aesthetics of the door and window. In addition, the high track is prone to dust accumulation and tripping, and the sliding structure lacks rolling support, resulting in high frictional resistance and easy jamming after long-term use. Utility Model Content

[0004] The purpose of this utility model is to provide a low-track sliding wind-pressure resistant invisible screen window, which aims to solve the problems of weak wind pressure resistance of existing invisible screen windows. When the screen window is unfolded, it is easy for the screen window to shift or fall off the track when encountering strong winds, affecting the sealing performance. At the same time, in order to accommodate the screen mesh rewinding mechanism, the track needs to be raised, which destroys the overall aesthetics of the door and window. In addition, the high track is easy to accumulate dust and trip, and the push-pull structure lacks rolling support, resulting in high frictional resistance and easy jamming after long-term use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A low-track sliding wind-pressure resistant invisible screen window includes:

[0007] Outer frame;

[0008] The mounting bracket has an inner surface of an outer frame, and an inner frame is slidably connected to the inner surface of the outer frame.

[0009] The winding mechanism includes:

[0010] The winding groove is located on one inner wall of the mounting frame. Rotating rods are rotatably connected to the upper and lower inner walls of the winding groove. Two mounting shells and two limiting seats are provided on the circumferential surface of the rotating rods.

[0011] Two coil springs, one end of each coil spring is fixedly connected to the circumferential surface of the rotating rod, and the other end of each coil spring is fixedly connected to the inner wall of one side of the winding groove;

[0012] The retractable screen window body has one end fixedly connected to the circumferential surface of a rotating rod, and the other end fixedly connected to a sliding block; and

[0013] A magnetic attraction component is disposed within the outer frame to achieve the function of magnetically limiting the sliding push-pull block.

[0014] As a preferred embodiment of this utility model, the magnetic attraction component includes:

[0015] Two magnetic slots are provided, both of which are located on the inner wall of the other side of the mounting bracket. The inner surfaces of the two magnetic slots and the outer surfaces of the push-pull block are slidably connected. Two second magnetic blocks are provided at one end of the push-pull block and on the inner surfaces of the two magnetic slots.

[0016] As a preferred embodiment of this utility model, the upper and lower inner walls of the mounting bracket are provided with sliding grooves, and pulleys are slidably connected to the inner surfaces of the two sliding grooves. The upper and lower ends of the two pulleys and the upper and lower ends of the push-pull block are respectively fixedly connected.

[0017] As a preferred embodiment of this utility model, it further includes multiple sets of locking mechanisms, each set of locking mechanisms comprising:

[0018] A sliding groove is formed at one end of the outer frame and the inner frame. An extrusion groove is formed on the inner surface of the sliding groove. A sliding rod is slidably connected to the inner surfaces of the sliding groove and the extrusion groove. A cross seat is fixedly connected to one end of the sliding rod.

[0019] Two snap-fit ​​grooves are provided, both of which are formed on one inner wall of the extrusion groove. Snap-fit ​​blocks are fixedly connected to the circumferential surface of the sliding rod. The outer surfaces of the two snap-fit ​​blocks and the inner surfaces of the two snap-fit ​​grooves are slidably connected.

[0020] A limiting component is provided in the compression groove to limit the movement of the two sliding locking blocks.

[0021] As a preferred embodiment of this utility model, each set of limiting components includes:

[0022] A sliding shell is fixedly connected to the inner surface of the extrusion groove, a downward pressure rod is slidably connected to the inner surface of the sliding shell, and a spring is sleeved on the outer surface of the sliding shell.

[0023] An extrusion plate is slidably connected to the inner surface of an extrusion groove, and one end of the extrusion plate is fixedly connected to one end of a lower pressure rod.

[0024] In a preferred embodiment of this utility model, one end of the inner frame is fixedly connected to a plurality of support seats, and the inner surfaces of the plurality of support seats and the outer surfaces of the plurality of cross seats are slidably connected.

[0025] As a preferred embodiment of this utility model, the upper and lower inner walls of the outer frame and the upper and lower ends of the mounting bracket are provided with mounting grooves, and the inner surfaces of the plurality of mounting grooves are provided with first magnetic blocks.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] 1. In this solution, the user pulls the push-pull block, causing the invisible screen window body to unfold from the rotating rod. The push-pull block slides along the sliding groove, supported by pulleys to reduce frictional resistance. When the push-pull block moves to the other side of the mounting bracket, it embeds into the magnetic groove. The second magnetic block on its surface is attracted and fixed to the second magnetic block in the magnetic groove, achieving wind pressure resistance and limiting. When the user gently pulls the push-pull block outward, the second magnetic block separates, the coil spring releases its elastic potential energy, drives the rotating rod to rotate, and automatically retracts the invisible screen window body into the retraction groove. The limiting seat restricts the retraction range of the screen window to prevent excessive winding, reduces the displacement impact of strong winds on the screen window, improves positioning stability and sealing, and avoids the screen window from shifting or falling off the track when encountering strong winds after unfolding. At the same time, it solves the problem that the track needs to be raised to accommodate the screen retraction mechanism, which damages the overall aesthetics of the door and window, and reduces the phenomenon of dust accumulation and tripping on high tracks. It also avoids the problem of lack of rolling support in the push-pull structure, high frictional resistance, and easy jamming after long-term use.

[0028] 2. In this solution, by pushing the sliding rod horizontally within the sliding groove, the locking block of the sliding rod slides into the interior of the compression groove. Then, rotating the cross seat causes the sliding rod and the two locking blocks to rotate 90 degrees. Under the action of force, the two locking blocks are pushed into the interior of the two locking grooves respectively, thus achieving mechanical locking. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a perspective view of the present utility model;

[0031] Figure 2 This is a first perspective sectional view of the present invention;

[0032] Figure 3 This utility model Figure 2 Enlarged view of section A in the image;

[0033] Figure 4This is a second perspective sectional view of the present invention;

[0034] Figure 5 This utility model Figure 4 Enlarged view of section B in the image;

[0035] Figure 6 This is an exploded view of the present invention.

[0036] In the diagram: 1. Outer frame; 2. Mounting bracket; 3. Inner frame; 4. Invisible screen body; 5. Roll-up groove; 6. Mounting groove; 7. First magnetic block; 8. Rotating rod; 9. Mounting shell; 10. Coil spring; 11. Limiting seat; 12. Sliding groove; 13. Pulley; 14. Push-pull block; 15. Magnetic groove; 16. Second magnetic block; 17. Sliding groove; 18. Pressing groove; 19. Sliding rod; 20. Snap-fit ​​groove; 21. Snap-fit ​​block; 22. Sliding shell; 23. Downward pressure rod; 24. Pressing plate; 25. Spring; 26. Support base; 27. Cross seat. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Example 1

[0039] Please see Figure 1-6 The present invention provides the following technical solution:

[0040] A low-track sliding wind-pressure resistant invisible screen window includes:

[0041] Outer frame 1;

[0042] Mounting bracket 2, the inner surface of the outer frame 1 is provided on the mounting bracket 2, and the inner frame 3 is slidably connected to the inner surface of the outer frame 1;

[0043] Receiving institutions, including:

[0044] The winding groove 5 is opened on one side of the inner wall of the mounting frame 2. The upper and lower inner walls of the winding groove 5 are rotatably connected to the rotating rod 8. The circumferential surface of the rotating rod 8 is provided with two mounting shells 9 and two limit seats 11.

[0045] Two coil springs 10, one end of each coil spring 10 is fixedly connected to the circumferential surface of the rotating rod 8, and the other end of each coil spring 10 is fixedly connected to the inner wall of one side of the winding groove 5.

[0046] The retractable screen window body 4 has one end fixedly connected to the circumferential surface of the rotating rod 8, and the other end fixedly connected to a sliding block 14; and

[0047] A magnetic attraction component is set inside the outer frame 1 to achieve the function of magnetically limiting the sliding push-pull block 14.

[0048] In a specific embodiment of this utility model, the outer frame 1 constitutes the main support frame of the screen window, providing the overall structural foundation. The mounting bracket 2 is fixedly set on the inner surface of the outer frame 1, used to install and support core components such as the winding mechanism and magnetic components. The inner frame 3 slides on the inner surface of the outer frame 1 to realize the sliding opening and closing function of the screen window. The winding groove 5 is opened on one side inner wall of the mounting bracket 2, providing installation and operating space for the rotating rod 8 and the coil spring 10. The rotating rod 8 rotates on the upper and lower inner walls of the winding groove 5, serving as the winding axis of the invisible screen window body 4. The mounting shell 9 is set on the circumferential surface of the rotating rod 8. A limiting seat 11 is provided on the circumferential surface of the rotating rod 8 to accommodate and protect the coil spring 10. It limits the axial movement range of the coil spring 10 and the retractable screen body 4 on the rotating rod 8. There are two coil springs 10, one end of which is fixed to the circumferential surface of the rotating rod 8, and the other end is fixed to the inner wall of one side of the winding groove 5. These provide elastic force to rotate the rotating rod 8 and automatically retract the retractable screen body 4. One end of the retractable screen body 4 is fixedly connected to the circumferential surface of the rotating rod 8 and can be retracted or unfolded as the rotating rod 8 rotates. The other end is used to cover the window. A push-pull block 14 is fixedly connected to the other end of the retractable screen body 4. One end is operated by the user to pull the screen to unfold or trigger the retraction, and it is also the target of the magnetic attraction component. The magnetic groove 15 is opened on the inner wall of the other side of the mounting bracket 2, providing a space for the final positioning of the push-pull block 14 in the unfolded state and guiding its sliding. Two second magnetic blocks 16 are respectively set at one end of the push-pull block 14 and the inner surface of the magnetic groove 15, and they cooperate to generate magnetic attraction force to firmly attach the push-pull block 14 in the magnetic groove 15. Two sliding grooves 12 are opened on the upper and lower inner walls of the mounting bracket 2, providing sliding tracks for the pulleys 13. The two pulleys 13 slide on the sliding grooves. The inner surface of the groove 12 is fixedly connected to the upper and lower ends of the push-pull block 14, supporting the push-pull block 14 and reducing its frictional resistance during sliding. This reduces the impact of strong winds on the screen window's displacement, improves positioning stability and sealing, and prevents the screen window from shifting or falling off the track when it encounters strong winds after being unfolded. It also solves the problem that the track needs to be raised to accommodate the screen mesh winding mechanism, which damages the overall aesthetics of the door and window. It reduces the phenomenon of dust accumulation and tripping on high tracks, and avoids the problem of the push-pull structure lacking rolling support, having high frictional resistance, and being prone to jamming after long-term use.

[0049] Please refer to the details. Figure 5 The magnetic attraction component includes:

[0050] Two magnetic slots 15 are provided on the inner wall of the other side of the mounting bracket 2. The inner surfaces of the two magnetic slots 15 and the outer surfaces of the push-pull block 14 are slidably connected. Two second magnetic blocks 16 are provided on one end of the push-pull block 14 and the inner surfaces of the two magnetic slots 15.

[0051] In this embodiment: the magnetic groove 15 is opened on the inner wall of the other side of the mounting bracket 2, providing a space for the final positioning of the push-pull block 14 in the unfolded state and guiding its sliding. The two second magnetic blocks 16 are respectively set at one end of the push-pull block 14 and the inner surface of the magnetic groove 15, and cooperate with each other to generate magnetic attraction, so as to firmly attach the push-pull block 14 in the magnetic groove 15.

[0052] Please refer to the details. Figure 5 The upper and lower inner walls of the mounting bracket 2 are provided with sliding grooves 12, and the inner surfaces of the two sliding grooves 12 are slidably connected with pulleys 13. The upper and lower ends of the two pulleys 13 and the upper and lower ends of the push-pull block 14 are respectively fixedly connected.

[0053] In this embodiment: two sliding grooves 12 are formed on the upper and lower inner walls of the mounting frame 2 to provide sliding tracks for the pulleys 13. The two pulleys 13 slide on the inner surface of the sliding grooves 12, and their upper and lower ends are fixedly connected to the upper and lower ends of the push-pull block 14 respectively, supporting the push-pull block 14 and reducing its frictional resistance during the sliding process.

[0054] Please refer to the details. Figure 3 It also includes multiple sets of card-connecting mechanisms, each set of card-connecting mechanisms including:

[0055] The sliding groove 17 is opened at one end of the outer frame 1 and the inner frame 3. The inner surface of the sliding groove 17 is provided with an extrusion groove 18. The inner surfaces of the sliding groove 17 and the extrusion groove 18 are slidably connected with sliding rods 19. One end of the sliding rod 19 is fixedly connected to a cross seat 27.

[0056] Two snap-fit ​​grooves 20 are formed on one side of the inner wall of the extrusion groove 18. Snap-fit ​​blocks 21 are fixedly connected to the circumferential surface of the sliding rod 19. The outer surfaces of the two snap-fit ​​blocks 21 and the inner surfaces of the two snap-fit ​​grooves 20 are slidably connected.

[0057] A limiting component is provided within the compression groove 18 to limit the movement of the two sliding locking blocks 21.

[0058] In this embodiment: a sliding groove 17 is formed at one end of the outer frame 1 and the inner frame 3, providing sliding space for the sliding rod 19; a pressing groove 18 is formed on the inner surface of the sliding groove 17, providing installation and movement space for the locking block 21 and the limiting component; the sliding rod 19 slides on the inner surfaces of the sliding groove 17 and the pressing groove 18, and is the moving body of the locking mechanism; a cross seat 27 is fixed to one end of the sliding rod 19 for connection with the support seat 26; two locking grooves 20 are formed on one inner wall of the pressing groove 18 to accommodate two locking blocks 21 for locking; the two locking blocks 21 are fixed on the circumferential surface of the sliding rod 19. The sliding rod 19 can slide into or out of the locking groove 20 to lock or unlock its position. The sliding shell 22 is fixed to the inner surface of the extrusion groove 18 to guide and accommodate the pressing rod 23. The pressing rod 23 slides on the inner surface of the sliding shell 22 and is the component that transmits the operating force. The spring 25 is sleeved on the outer surface of the sliding shell 22 to provide elastic force to reset the pressing rod 23 and the extrusion plate 24. The extrusion plate 24 slides on the inner surface of the extrusion groove 18, and one end is fixedly connected to the pressing rod 23, directly acting on the locking block 21 or related structures. When pressed down, it releases the limit on the locking block 21 so that it can slide out of the locking groove 20.

[0059] Please refer to the details. Figure 6 Each set of limit components includes:

[0060] The sliding shell 22 is fixedly connected to the inner surface of the extrusion groove 18. The inner surface of the sliding shell 22 is slidably connected to the pressing rod 23, and the outer surface of the sliding shell 22 is fitted with a spring 25.

[0061] The extrusion plate 24 is slidably connected to the inner surface of the extrusion groove 18, and one end of the extrusion plate 24 is fixedly connected to one end of the lower pressure rod 23.

[0062] In this embodiment: the sliding shell 22 is fixed to the inner surface of the extrusion groove 18, providing guidance and accommodation for the pressing rod 23. The pressing rod 23 slides on the inner surface of the sliding shell 22 and is a component that transmits operating force. The spring 25 is sleeved on the outer surface of the sliding shell 22, providing elastic force to reset the pressing rod 23 and the extrusion plate 24. The extrusion plate 24 slides on the inner surface of the extrusion groove 18, with one end fixedly connected to the pressing rod 23, and directly acts on the locking block 21 or related structures. When pressed down, it releases the restriction on the locking block 21 so that it can slide out of the locking groove 20.

[0063] Please refer to the details. Figure 3 One end of the inner frame 3 is fixedly connected to multiple support seats 26, and the inner surfaces of the multiple support seats 26 and the outer surfaces of the multiple cross seats 27 are slidably connected.

[0064] In this embodiment: multiple support seats 26 are fixed to one end of the inner frame 3, and their inner surfaces are used to slide and connect the cross seat 27, so as to support and fix the snap-fit ​​position of the sliding rod 19 on the inner frame 3.

[0065] Please refer to the details. Figure 5 The upper and lower inner walls of the outer frame 1 and the upper and lower ends of the mounting bracket 2 are provided with mounting grooves 6, and the inner surfaces of the multiple mounting grooves 6 are provided with first magnetic blocks 7.

[0066] In this embodiment: the mounting groove 6 is formed on the upper and lower inner walls of the outer frame 1 and the upper and lower ends of the mounting bracket 2, and is used to accommodate the first magnetic block 7. The first magnetic block 7 is set on the inner surface of the mounting groove 6 and is used to magnetically fix the mounting bracket 2 to the upper and lower inner walls of the outer frame 1, so as to realize the quick and stable installation of the mounting bracket 2.

[0067] The working principle and usage process of this utility model are as follows: When the user pulls the push-pull block 14, the invisible screen window body 4 unfolds from the rotating rod 8. The push-pull block 14 slides along the sliding groove 12, supported by the pulley 13 to reduce frictional resistance. When the push-pull block 14 moves to the other side of the mounting bracket 2, the push-pull block 14 is embedded in the magnetic suction groove 15, and the second magnetic suction block 16 on its surface is attracted and fixed to the second magnetic suction block 16 in the magnetic suction groove 15, realizing wind pressure resistance limiting. When the user gently pulls the push-pull block 14 outward, the second magnetic suction block 16 separates, the coil spring 10 releases elastic potential energy, drives the rotating rod 8 to rotate, and automatically rolls up the invisible screen window. Within the main body 4 and the winding groove 5, the limiting seat 11 restricts the winding range of the screen window to prevent excessive winding. When the inner frame 3 is opened, the inner frame 3 is pushed to slide open along the inner surface of the outer frame 1. When the inner frame 3 slides, it drives the support seat 26 and the cross seat 27 to move. The cross seat 27 pushes the sliding rod 19 to slide horizontally in the sliding groove 17. The locking block 21 of the sliding rod 19 slides into the inside of the compression groove 18. Then, the cross seat 27 is rotated to drive the sliding rod 19 and the two locking blocks 21 to rotate ninety degrees. Under the action of force, the two locking blocks 21 are pushed into the inside of the two locking grooves 20 respectively to achieve mechanical locking.

[0068] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-track sliding wind-pressure resistant invisible screen, characterized in that, include: Outer frame (1); Mounting bracket (2), wherein the mounting bracket (2) is provided with the inner surface of the outer frame (1), and the inner surface of the outer frame (1) is slidably connected to the inner frame (3); The winding mechanism includes: The winding groove (5) is opened on one side of the inner wall of the mounting frame (2). The upper and lower inner walls of the winding groove (5) are rotatably connected with rotating rods (8). The circumferential surface of the rotating rods (8) is provided with two mounting shells (9) and two limiting seats (11). Two coil springs (10), one end of each coil spring (10) is fixedly connected to the circumferential surface of the rotating rod (8), and the other end of each coil spring (10) is fixedly connected to the inner wall of one side of the winding groove (5); An invisible screen body (4), one end of which is fixedly connected to the circumferential surface of a rotating rod (8), and the other end of which is fixedly connected to a push-pull block (14); and A magnetic suction component is disposed within the outer frame (1) to achieve the function of magnetically limiting the sliding push-pull block (14).

2. The low-track sliding wind-pressure resistant invisible screen window according to claim 1, characterized in that: The magnetic attraction component includes: Two magnetic suction slots (15) are provided on the inner wall of the other side of the mounting bracket (2). The inner surfaces of the two magnetic suction slots (15) and the outer surfaces of the push-pull block (14) are slidably connected. Two second magnetic suction blocks (16) are provided at one end of the push-pull block (14) and on the inner surfaces of the two magnetic suction slots (15).

3. The low-track sliding wind-pressure resistant invisible screen window according to claim 2, characterized in that: The mounting bracket (2) has sliding grooves (12) on its upper and lower inner walls. The inner surfaces of the two sliding grooves (12) are slidably connected to pulleys (13). The upper and lower ends of the two pulleys (13) and the upper and lower ends of the push-pull block (14) are respectively fixedly connected.

4. The low-track sliding wind-pressure resistant invisible screen window according to claim 3, characterized in that: It also includes multiple sets of latching mechanisms, each set of which includes: A sliding groove (17) is provided at one end of the outer frame (1) and the inner frame (3). An extrusion groove (18) is provided on the inner surface of the sliding groove (17). A sliding rod (19) is slidably connected to the inner surfaces of the sliding groove (17) and the extrusion groove (18). A cross seat (27) is fixedly connected to one end of the sliding rod (19). Two snap-fit ​​grooves (20) are provided on one side of the inner wall of the extrusion groove (18). A snap-fit ​​block (21) is fixedly connected to the circumferential surface of the sliding rod (19). The outer surfaces of the two snap-fit ​​blocks (21) and the inner surfaces of the two snap-fit ​​grooves (20) are slidably connected. A limiting component is provided in the compression groove (18) to limit the sliding of the two snap-fit ​​blocks (21).

5. A low-track sliding wind-pressure resistant invisible screen window according to claim 4, characterized in that: Each set of the limiting components includes: A sliding shell (22) is fixedly connected to the inner surface of the extrusion groove (18). A lower pressure rod (23) is slidably connected to the inner surface of the sliding shell (22). A spring (25) is sleeved on the outer surface of the sliding shell (22). An extrusion plate (24) is slidably connected to the inner surface of the extrusion groove (18), and one end of the extrusion plate (24) is fixedly connected to one end of the lower pressure rod (23).

6. A low-track sliding wind-pressure resistant invisible screen window according to claim 5, characterized in that: One end of the inner frame (3) is fixedly connected to a plurality of support seats (26), and the inner surfaces of the plurality of support seats (26) and the outer surfaces of the plurality of cross seats (27) are slidably connected respectively.

7. A low-track sliding wind-pressure resistant invisible screen window according to claim 6, characterized in that: The upper and lower inner walls of the outer frame (1) and the upper and lower ends of the mounting bracket (2) are provided with mounting grooves (6), and the inner surfaces of the multiple mounting grooves (6) are provided with first magnetic blocks (7).

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