Screen structure

Abstract

The utility model provides a screen structure relates to door and window technical field, including synchronous wheel one, two and with two meshed synchronous belt one group constitutes the traction system, synchronous wheel three, four and with two meshed synchronous belt two group constitutes the winding transmission system, power system, screen curtain mechanism and frame, synchronous wheel two, three are connected by transmission shaft no.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to a screen window structure. Background Technology

[0002] Existing window screen technology has two major flaws:

[0003] Roller structure limitations: Most screens on the market currently use a circular roller design. This structure requires a large depth of installation space and is difficult to adapt to some flat spaces (such as ultra-thin window frames and integrated door and window systems), which greatly limits the application scenarios of screens.

[0004] Counterweight dependency issue: Traditional screens require a counterweight to be installed at the bottom of the fabric during descent to ensure smooth fabric unfolding. This not only increases structural complexity and cost, but may also cause noise due to the swaying of the counterweight, and the counterweight is prone to falling off after long-term use, leading to screen malfunction.

[0005] Therefore, there is an urgent need for a new type of screen structure that can overcome the spatial limitations of a circular roller and solve the problem of reliance on counterweight. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the shortcomings of the existing technology, this utility model aims to provide a screen structure that is suitable for flat installation spaces and does not require counterweight. It achieves stable opening and closing of the screen fabric through an innovative dual synchronous belt drive system, while solving the problems of space adaptability and operational reliability.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: a screen window structure including a traction transmission system, a winding transmission system, a power system, a screen curtain mechanism, and a frame supporting and accommodating components;

[0010] The frame includes a top frame, side frames, and a fixing plate;

[0011] The traction transmission system includes a synchronous pulley 1 and a synchronous pulley 2 that are rotatably connected to the frame, and a synchronous belt 1 that meshes with both.

[0012] The winding transmission system includes a synchronous pulley three and a synchronous pulley four rotatably connected to the frame, and a synchronous belt two meshing with both. Several gauze curtain rolls are arranged on the outside of the synchronous belt two. The synchronous pulley two and the synchronous pulley three are synchronously connected through a transmission shaft two.

[0013] The power system consists of a controller and a motor. The motor is connected to one of the synchronous pulleys via a drive shaft. The controller is used to drive the motor to rotate forward and backward to realize the raising and lowering of the curtain.

[0014] The curtain mechanism consists of fabric, traction fixing block, fabric clamp, and fabric end fixing block. The traction fixing block is fixed on the timing belt, the fabric clamp is disposed on the traction fixing block, the fabric end fixing block is fixed on the curtain slat, and both ends of the fabric are fixed on the fabric clamp and the fabric end fixing block, respectively.

[0015] Preferably, the output shaft of the motor is connected to the synchronous pulley four via a transmission shaft one.

[0016] Preferably, the fabric clamp further includes an adaptive compensation mechanism, comprising an elastic cylinder and a telescopic block. A groove is provided within the traction fixing block, and the fabric clamp is slidably mounted within the groove of the traction fixing block. One end of the elastic cylinder is connected to the traction fixing block. The telescopic block extends and retracts within the elastic cylinder, with one end inside the cylinder and the other end pressing against the fabric clamp.

[0017] Preferably, the surface of the fabric end fixing block is provided with anti-slip texture to enhance the friction on the fabric.

[0018] Preferably, a wear-resistant bushing is provided in the traction fixing block groove to reduce the sliding resistance of the fabric clip.

[0019] (III) Beneficial Effects

[0020] This utility model provides a screen window structure. It has the following beneficial effects:

[0021] 1. This screen structure uses a flat synchronous belt drive system instead of a traditional round roller, which can be adapted to flat installation spaces with smaller thickness. It saves more space than the traditional round roller solution and has strong space adaptability.

[0022] 2. This screen structure does not require a counterweight design. It uses dual synchronous belts to drive the upper and lower ends of the fabric and uses an elastic cylinder to automatically compensate for the length difference, completely eliminating the dependence on counterweights and reducing structural complexity and failure rate.

[0023] 3. The screen structure features an adaptive compensation mechanism composed of an elastic cylinder and a telescopic block, which can automatically adjust the fabric tension to avoid stretching damage or transmission jamming caused by the accumulation of fabric thickness, thus extending the service life of the screen and ensuring high operational stability. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of a screen window structure according to the present invention;

[0025] Figure 2 This is a side view schematic diagram of a screen window structure according to the present invention;

[0026] Figure 3 This is an isometric schematic diagram of a screen window structure according to the present invention;

[0027] Figure 4 This is a schematic diagram of a five-frame structure for a screen window according to the present invention.

[0028] In the diagram: 11. Synchronous pulley one; 12. Synchronous pulley two; 13. Synchronous belt one; 21. Synchronous pulley three; 22. Synchronous pulley four; 23. Synchronous belt two; 24. Drive shaft two; 3. Power system; 31. Drive shaft one; 41. Top frame; 42. Side frame; 43. Fixing plate; 51. Fabric; 52. Traction fixing block; 53. Fabric clamp; 54. Fabric end fixing block; 61. Elastic cylinder; 62. Telescopic block; 63. Slide groove; 7. Curtain roller. Detailed Implementation

[0029] This utility model embodiment provides a screen window structure, such as Figure 1-4 As shown, it includes a traction drive system, a winding drive system, a power system 3, a curtain mechanism, and a frame supporting and accommodating components;

[0030] The frame includes an upper frame 41, side frames 42, and a fixing plate 43;

[0031] The traction transmission system includes a synchronous pulley 11, a synchronous pulley 12 and a synchronous belt 13 meshing with the frame, which are rotatably connected to the frame. The traction transmission system is used to pull the fabric 51 up and down.

[0032] The winding transmission system includes a synchronous pulley 21, a synchronous pulley 22 and a synchronous belt 23 meshing with the frame, which are rotatably connected to the synchronous pulley 23. Several gauze curtain rolls 7 are arranged on the outside of the synchronous belt 23. The synchronous pulley 212 and the synchronous pulley 21 are synchronously connected by a transmission shaft 24. The winding transmission system is used for winding and unwinding the fabric 51.

[0033] The power system 3 consists of a controller and a motor (both the controller and the motor are existing technologies and are not specifically shown in the figure). The motor is connected to one of the synchronous pulleys via a transmission shaft 31. The controller is used to drive the motor to rotate forward and backward to realize the raising and lowering of the curtain.

[0034] In the embodiments of this case, such as Figures 1-4The motor is mechanically coupled to the synchronous pulley 22 via a drive shaft 31. The synchronous pulleys 21 and 22 are coupled to each other via a synchronous belt 23. The synchronous pulleys 11 and 32 are connected via a drive shaft 24. The synchronous pulleys 12 and 11 are coupled to each other via a synchronous belt 13. The synchronous pulleys 11, 32, and 42 are mounted on the system mounting plate 43 and the upper frame 41. The synchronous pulley 12 is mounted inside the side frame 42. Several curtain slats 7 are fixedly connected to the synchronous belt 23. The fabric end fixing block 54 is connected to the curtain slats 7. The traction fixing block 52 is fixedly connected to the synchronous belt 13. The fabric clip 53 is slidably mounted in the groove 63 of the traction fixing block 52.

[0035] The curtain mechanism consists of fabric 51, traction fixing block 52, fabric clamp 53 and fabric end fixing block 54. The traction fixing block 52 is fixed on the timing belt 13. The fabric clamp 53 is disposed on the traction fixing block 52. The fabric end fixing block 54 is fixed on the curtain slat 7. The two ends of the fabric 51 are respectively fixed on the fabric clamp 53 and the fabric end fixing block 54.

[0036] Furthermore, the fabric clamp 53 also includes an adaptive compensation mechanism, comprising an elastic cylinder 61 and a telescopic block 62. A groove 63 is provided inside the traction fixing block 52, and the fabric clamp 53 is slidably installed in the groove 63 of the traction fixing block 52. One end of the elastic cylinder 61 is connected to the traction fixing block 52. The telescopic block 62 extends and retracts inside the elastic cylinder 61, with one end inside the elastic cylinder 61 and the other end pressing against the fabric clamp 53.

[0037] Alternatively, preferably, the surface of the fabric end fixing block 54 is provided with an anti-slip texture to enhance the friction on the fabric 51.

[0038] Preferably, a wear-resistant bushing is provided in the groove 63 of the traction fixing block 52 to reduce the sliding resistance of the fabric clamp 53.

[0039] Working principle: When the curtain is running, the control system sends a command, the motor drives synchronous pulley 4 22 to rotate, synchronous pulley 4 22 drives synchronous pulley 3 21 to rotate via synchronous belt 2 23, synchronous belt 2 23 drives the fabric end fixing block 54 to run along the synchronous belt running path, thereby rolling the fabric 51 onto the curtain roll 7; at the same time, synchronous pulley 3 21 drives synchronous pulley 11 to rotate via transmission shaft 2 24, thereby driving synchronous belt 1 13 and synchronous pulley 2 12 to run, synchronous belt 1 13 drives the traction fixing block 52 to move up and down, thereby driving the fabric clamp 53 to move up and down. When the curtain is opened, synchronous belt 2 23 drives the curtain fabric 51 to roll up, and synchronous belt 1 13 drives the lower end of the fabric 51 to rise. Since the fabric 51 has a certain thickness, when the fabric 51 is rolled up, the length rolled up at the upper end will be more than the length raised at the lower end. At this time, the telescopic rod will compress the elastic cylinder 61 upward to ensure that the fabric 51 will not be torn or the transmission system will be jammed due to the difference in length between the rolled-up and raised fabric 51.

[0040] Silent operation: By eliminating the counterweight, the noise caused by the shaking of the counterweight during the opening and closing of traditional window screens is avoided, making the operation quieter.

[0041] In summary, this screen structure, with its two major innovations of dual synchronous belt drive and adaptive compensation, constructs a complete technical protection system.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screen window structure, characterized in that: Includes a traction drive system, a winding drive system, a power system (3), a curtain mechanism, and a frame supporting and accommodating components; The frame includes an upper frame (41), side frames (42) and a fixing plate (43); The traction transmission system includes a synchronous pulley 1 (11) and a synchronous pulley 2 (12) rotatably connected to the frame and a synchronous belt 1 (13) meshing with both; The winding transmission system includes a rotatably connected synchronous pulley three (21), synchronous pulley four (22) and synchronous belt two (23) meshing with both within the frame. Several gauze curtain rolls (7) are arranged on the outside of the synchronous belt two (23). The synchronous pulley two (12) and synchronous pulley three (21) are synchronously connected by a transmission shaft two (24). The power system (3) consists of a controller and a motor. The motor is connected to one of the synchronous pulleys via a transmission shaft (31). The controller is used to drive the motor to rotate forward and backward to realize the raising and lowering of the curtain. The curtain mechanism consists of fabric (51), traction fixing block (52), fabric clip (53) and fabric end fixing block (54). The traction fixing block (52) is fixed on the timing belt (13). The fabric clip (53) is set on the traction fixing block (52). The fabric end fixing block (54) is fixed on the curtain slat (7). The two ends of the fabric (51) are respectively fixed on the fabric clip (53) and the fabric end fixing block (54).

2. The screen window structure according to claim 1, characterized in that: The output shaft of the motor is connected to the synchronous pulley four (22) via a transmission shaft one (31).

3. The screen window structure according to claim 1, characterized in that: The fabric clip also includes an adaptive compensation mechanism, including an elastic cylinder (61) and a telescopic block (62). The traction fixing block (52) is provided with a groove (63), and the fabric clip (53) is slidably installed in the groove (63) of the traction fixing block (52). One end of the elastic cylinder (61) is connected to the traction fixing block (52). The telescopic block (62) extends and retracts in the elastic cylinder (61), with one end in the elastic cylinder (61) and the other end pressing against the fabric clip (53).

4. The screen window structure according to claim 1, characterized in that: The surface of the fabric end fixing block is provided with anti-slip texture to enhance the friction on the fabric.

5. A screen window structure according to claim 1, characterized in that: The traction fixing block groove is equipped with a wear-resistant bushing to reduce the sliding resistance of the fabric clip.

Images