Building noise reduction screen window and noise reduction method

Abstract

The invention discloses a building noise reduction screen window and a noise reduction method.The building noise reduction screen window comprises a polyester fiber window screen installed in an installation frame body, a sliding plate is slidably connected to the side wall in the installation frame body, and a sliding toothed plate, a toothed column, an insertion rod, an electronic conducting strip, an arc-shaped groove, a matching rod and a sliding plate are arranged; a sliding toothed plate is in sliding engagement to drive a toothed column to rotate at the same time, then an inserting rod extrudes a conducting strip under the cooperation of a matching rod and an arc-shaped groove, and then a control module controls an auxiliary sound insulation mechanism to achieve double sound insulation protection matched with the polyester fiber window screen; multiple sound insulation and noise reduction can be achieved, meanwhile, the clamping assembly is arranged and comprises a T-shaped sliding block, an inserting plate, a connecting rod, a second spring and a pushing part, the T-shaped sliding block is pushed through a pushing head, the inserting plate is driven to move through the connecting rod, connection with the mounting frame is canceled, pressing on the pushing part is directly canceled when the mounting box needs to be mounted, and the inserting plate can be reset and fixed; therefore, the mounting box is fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of window screens, and particularly to a building noise reduction window screen and a noise reduction method. Background Art

[0002] During the construction and decoration of buildings, more considerations are given to lighting and ventilation. Good lighting and ventilation can bring a better living experience to residents. Therefore, there are a variety of window types used in decoration, with different functions and lighting and ventilation effects.

[0003] The window screen is one of the traditional window types. It is widely loved by people for its good ventilation and lighting. At the same time, the window screen can selectively filter out impurities in the external environment and can also provide good blockage when the weather is hot and there are many mosquitoes. However, currently, the window screens on the market generally do not have the function of processing noise while ensuring ventilation. This makes it impossible to achieve both ventilation and noise reduction in many noisy environments, bringing a certain amount of noise pollution to the interior of the building. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to provide a building noise reduction window screen and a noise reduction method.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A building noise reduction window screen includes a mounting frame body with a polyester fiber window screen installed. A sliding plate is slidably connected to the inner side wall of the mounting frame body. A control box is fixedly installed on the inner side wall of the mounting frame body. One end of the polyester fiber window screen is connected to the sliding plate. A control module is provided inside the control box. A cover plate two is connected to the outer side wall of the control box through a hinge. An installation cavity is provided inside the control box. An electronic component is movably installed on the inner wall of the installation cavity. A sliding block is slidably connected to the inner side wall of the installation cavity. A conductive sheet is fixedly installed between the outer side walls of the opposite sides of the sliding block. A plastic spring is fixedly installed between the sliding block and the inner wall of the top of the installation cavity. The conductive sheet is externally connected to the control module through a wire. An insertion port is provided at the top of the control box. A fixed cavity is provided inside the inner wall of the sliding plate. A sliding rack is slidably connected to the inner side wall of the fixed cavity. A spring one is fixedly installed between the sliding rack and the inner wall of the fixed cavity. A tooth column is rotatably connected to the inner wall of the fixed cavity. The tooth column meshes with the sliding rack. An insertion rod is slidably connected to the inner wall of the fixed cavity. A mating rod is rotatably connected to the outer side wall of the insertion rod. An arc-shaped groove is provided in the inner side wall of the tooth column, and the arc-shaped groove cooperates with the mating rod.

[0006] Preferably: A fixed cover is rotatably connected to the inner wall of the mounting frame body. The fixed cover and the inner wall of the mounting frame body are connected by a locking bolt through a thread. The other end of the polyester fiber window screen is movably installed between the fixed cover and the mounting frame body.

[0007] Furthermore, a pulling component is externally connected to the sliding tooth plate, and an auxiliary sound insulation mechanism is provided on the other side of the installation frame body. The auxiliary sound insulation mechanism is connected to the internal control module of the control box.

[0008] Based on the foregoing solution: The pulling component includes a first cover plate, a connecting plate, and a guiding plate. The first cover plate is rotatably connected to the inner wall of the fixed cavity, and the connecting plate is fixedly installed on the outer side wall of the sliding tooth plate.

[0009] In a better solution among the foregoing solutions: The guiding plate is fixedly installed on the inner side wall of the fixed cavity. A pulling rope is fixedly installed between the first cover plate and the connecting plate, and the pulling rope passes through the inner wall of the guiding plate. A positioning block is fixedly installed on the outer side wall of the first cover plate.

[0010] As a further solution of the present invention: A fixing plate is fixedly installed on the outer side wall of the installation frame body. A spring pin is fixedly installed on the outer wall of the top of the fixing plate. A fixing opening is formed on the outer wall of the positioning block, and the spring pin is movably inserted into the fixing opening.

[0011] Meanwhile, the auxiliary sound insulation mechanism includes an installation block, a motor, a ventilation noise reduction net, and an installation box. The motor is fixedly installed on the inner wall of the installation frame body. The output end of the motor is connected to a lead screw through a coupling. The installation block is slidably connected to the inner wall of the installation frame body. A clamping plate is provided on the outer wall of the bottom of the installation block. A clamping component is provided inside the installation box. A partition plate is fixedly installed on the inner side wall of the installation box. A winding column is rotatably connected to the inner wall of the installation box. A torsion spring is clamped between the winding column and the inner wall of the installation box. One end of the ventilation noise reduction net is wound around the outer wall of the winding column, and the other end of the ventilation noise reduction net is fixed between the clamping plates.

[0012] As a preferred solution of the present invention: The clamping component includes a T-shaped slider and an insertion plate. The T-shaped slider is slidably connected to the inner side wall of the installation box. The insertion plate is slidably connected to the inner side wall of the installation box, and the other end of the insertion plate is movably inserted into the inner wall of the installation frame body. A connecting rod is rotatably connected between the T-shaped slider and the insertion plate. A second spring is fixedly installed between the T-shaped slider and the partition plate. A push head is slidably connected to the inner wall of the installation box, and the other end of the push head is connected to the T-shaped slider.

[0013] A noise reduction method for a building noise reduction window screen includes the following steps: S1: First, install the polyester fiber window screen between the sliding plate and the fixed cover, install the installation box, and at the same time fix the ventilation noise reduction net between the clamping plates; S2: When sound insulation operation is required, pull the sliding plate to dock with the control box, and the polyester fiber window screen unfolds to achieve primary sound insulation; S3: Subsequently, rotate the first cover plate and fix it through the spring pin. The pulling rope pulls the sliding tooth plate, and then the sliding tooth plate meshes with the installation block to make the insertion rod move to press the conductive sheet, and the control module inside the control box is powered on. The control module controls the motor to drive the lead screw to rotate, the insertion plate slides, and the ventilation noise reduction net is pulled by the clamping plate to unfold to achieve secondary sound insulation.

[0014] The beneficial effects of the present invention are as follows: 1. In the present invention, by providing a sliding tooth plate, a tooth column, a plug rod, a control box, an electronic conductive sheet, an arc groove, and a matching rod, when the sliding plate is slid to stretch the polyester fiber window screen, the sliding tooth plate slides and meshes simultaneously to drive the tooth column to rotate. Then, the plug rod presses the conductive sheet under the cooperation of the matching rod and the arc groove. Subsequently, the control module controls the auxiliary sound insulation mechanism to achieve double sound insulation protection.

[0015] 2. In the present invention, by setting the auxiliary sound insulation mechanism as a combination of a motor, a mounting block, a ventilation noise reduction net, a winding column, and a clamping plate, the control module can control the motor to drive the lead screw to rotate. Then, the ventilation noise reduction net is pulled and stretched by the clamping plate to achieve double noise reduction.

[0016] 3. In the present invention, by setting the clamping component as a combination of a T-shaped slider, a plug board, a connecting rod, a second spring, and a pusher, during use, the T-shaped slider can be pushed through the push head, and the plug board is driven to move through the connecting rod to cancel the connection with the mounting frame body. When the installation box needs to be installed, directly cancel the pressing of the pusher, and the plug board can be reset and fixed, which is convenient for subsequent disassembly and assembly of the installation box for replacing the ventilation noise reduction net. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of this application, making other features, objects, and advantages of this application more obvious. The schematic embodiments and descriptions thereof of this application are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 is a schematic diagram of the overall structure of a building noise reduction window screen proposed by the present invention; Figure 2 is a schematic diagram of the control box structure of a building noise reduction window screen proposed by the present invention; Figure 3 is a schematic diagram of the sectional view of the sliding plate of a building noise reduction window screen proposed by the present invention; Figure 4 is a schematic diagram of the fixed cavity structure of a building noise reduction window screen proposed by the present invention; Figure 5 is a schematic diagram of the sliding tooth plate structure of a building noise reduction window screen proposed by the present invention; Figure 6 is a schematic diagram of the sectional view of the control box of a building noise reduction window screen proposed by the present invention; Figure 7 is a schematic diagram of the sectional view of the mounting frame body of a building noise reduction window screen proposed by the present invention; Figure 8 is a schematic diagram of the sectional view of the installation box of a building noise reduction window screen proposed by the present invention.

[0018] In the figure: 1, positioning block; 2, sliding plate; 3, first cover plate; 4, mounting frame; 5, polyester fiber window screen; 6, fixed cover; 7, locking bolt; 8, control box; 9, socket; 10, spring pin; 11, fixed plate; 12, second cover plate; 13, first spring; 14, connecting plate; 15, fixed opening; 16, pull rope; 17, guide plate; 18, insertion rod; 19, tooth column; 20, fixed cavity; 21, arc-shaped groove; 22, mating rod; 23, sliding tooth plate; 24, mounting cavity; 25, conductive sheet; 26, plastic spring; 27, sliding block; 28, electronics; 29, mounting block; 30, lead screw; 31, motor; 32, ventilation and noise reduction net; 33, clamping plate; 34, mounting box; 35, pushing head; 36, T-shaped slider; 37, second spring; 38, connecting rod; 39, insertion plate; 40, partition board; 41, winding column; 42, coil spring. Detailed implementation manner

[0019] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0020] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0022] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0023] In addition, the meaning of the term "plurality" should be two or more.

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail this application.

[0025] Embodiment 1: A building noise reduction window screen, as Figure 1-8 shown, includes a mounting frame body 4 on which a polyester fiber window screen 5 is installed. The inner wall of the mounting frame body 4 is rotatably connected with a fixed cover 6. The fixed cover 6 and the inner wall of the mounting frame body 4 are threadedly connected with a locking bolt 7. A sliding plate 2 is slidably connected to the inner side wall of the mounting frame body 4. A control box 8 is welded to the inner side wall of the mounting frame body 4. One end of the polyester fiber window screen 5 is connected to the sliding plate 2. The other end of the polyester fiber window screen 5 is movably installed between the fixed cover 6 and the mounting frame body 4. A control module is provided inside the control box 8. A cover plate two 12 is connected to the outer side wall of the control box 8 through a hinge. An installation cavity 24 is opened inside the control box 8. An electronic device 28 is movably installed on the inner wall of the installation cavity 24. A sliding block 27 is slidably connected to the inner side wall of the installation cavity 24. A conductive sheet 25 is bonded between the opposite outer side walls of the sliding block 27. A plastic spring 26 is bonded between the sliding block 27 and the top inner wall of the installation cavity 24. The outside of the conductive sheet 25 is connected to the control module through a wire. An insertion port 9 is opened at the top of the control box 8. A fixed cavity 20 is opened in the inner wall of the sliding plate 2. A sliding tooth plate 23 is slidably connected to the inner side wall of the fixed cavity 20. A spring one 13 is welded between the sliding tooth plate 23 and the inner wall of the fixed cavity 20. A tooth column 19 is rotatably connected to the inner wall of the fixed cavity 20. The tooth column 19 meshes with the sliding tooth plate 23. A plug rod 18 is slidably connected to the inner wall of the fixed cavity 20. A mating rod 22 is rotatably connected to the outer side wall of the plug rod 18. An arc-shaped groove 21 is opened in the inner side wall of the tooth column 19. The arc-shaped groove 21 cooperates with the mating rod 22. A pulling assembly is connected to the outside of the sliding tooth plate 23. An auxiliary sound insulation mechanism is provided on the other side of the mounting frame body 4. The auxiliary sound insulation mechanism is connected to the internal control module of the control box 8; First, install the polyester fiber window screen 5 between the sliding plate 2 and the fixed cover 6. Subsequently, when sound insulation treatment is required in the environment where the device is located, the sliding plate 2 can be pulled by the pulling component to make the polyester fiber window screen 5 unfold. When the sliding plate 2 moves to dock with the control box 8, release the pulling component. The pulling component can rotate to drive the sliding tooth plate 23 inside the fixed cavity 20 to slide. When the sliding tooth plate 23 slides, the meshing tooth column 19 rotates, and the plug rod 18 moves under the cooperation of the arc-shaped groove 21 and the matching rod 22. The plug rod 18 presses the conductive sheet 25 to contact the electron 28 to realize the current path of the control module. Subsequently, the control module controls the opening of the auxiliary sound insulation mechanism on the other side of the installation frame body 4 to achieve double-layer sound insulation treatment.

[0026] The pulling component includes a first cover plate 3, a connecting plate 14, and a guiding plate 17. The first cover plate 3 is rotatably connected to the inner wall of the fixed cavity 20. The connecting plate 14 is welded to the outer side wall of the sliding tooth plate 23. The guiding plate 17 is welded to the inner side wall of the fixed cavity 20. A pull rope 16 is bonded between the first cover plate 3 and the connecting plate 14, and the pull rope 16 is inserted through the inner wall of the guiding plate 17. A positioning block 1 is welded to the outer side wall of the first cover plate 3. During use, the user can pinch the positioning block 1 and pull the first cover plate 3 to rotate to a position perpendicular to the sliding plate 2. Subsequently, pulling the sliding plate 2 to move can realize the unfolding of the polyester fiber window screen 5. At the same time, the sliding tooth plate 23 is also pulled by the pull rope 16 to move, realizing the subsequent pressing and energization of the conductive sheet 25 by the plug rod 18.

[0027] A fixing plate 11 is welded to the outer side wall of the installation frame body 4. A spring pin 10 is welded to the top outer wall of the fixing plate 11. A fixing port 15 is opened on the outer wall of the positioning block 1. The spring pin 10 is movably inserted into the fixing port 15. After pulling the first cover plate 3 and the sliding plate 2 to move through the positioning block 1, place the positioning block 1 at the position of the fixing plate 11. Subsequently, pull the spring pin 10 and insert it into the fixing port 15 to fix the positioning block 1, keeping the positions of the plug rod 18 and the tooth column 19 unchanged, and the control module is continuously energized.

[0028] The auxiliary sound insulation mechanism includes a mounting block 29, a motor 31, a ventilation and noise reduction net 32, and a mounting box 34. The motor 31 is fixed to the inner wall of the installation frame body 4 by bolts. The output end of the motor 31 is connected to a lead screw 30 through a coupling. The mounting block 29 is slidably connected to the inner wall of the installation frame body 4. A clamping plate 33 is provided on the bottom outer wall of the mounting block 29. A clamping component is provided inside the mounting box 34. A partition plate 40 is welded to the inner side wall of the mounting box 34. A winding column 41 is rotatably connected to the inner wall of the mounting box 34. A torsion spring 42 is clamped between the winding column 41 and the inner wall of the mounting box 34. One end of the ventilation and noise reduction net 32 is wound around the outer wall of the winding column 41, and the other end of the ventilation and noise reduction net 32 is fixed between the clamping plates 33. During use, the installation box 34 is fixed to the inner wall of the installation frame 4 through the clamping component. Subsequently, the other end of the ventilation and noise reduction net 32 is fixed between the clamping plates 33. Then, when the control module controls the motor 31 to start, the lead screw 30 rotates, and the installation block 29 slides. The ventilation and noise reduction net 32 is pulled to stretch through the clamping plates 33, achieving double-layer sound insulation.

[0029] Embodiment 2: A building noise reduction window screen, as Figure 1-8 shown, the clamping component includes a T-shaped slider 36 and a plug board 39. The T-shaped slider 36 is slidably connected to the inner side wall of the installation box 34, and the plug board 39 is slidably connected to the inner side wall of the installation box 34. The other end of the plug board 39 is movably inserted into the inner wall of the installation frame 4. A connecting rod 38 is rotatably connected between the T-shaped slider 36 and the plug board 39. A second spring 37 is welded between the T-shaped slider 36 and the partition plate 40. A push head 35 is slidably connected to the inner wall of the installation box 34, and the other end of the push head 35 is connected to the T-shaped slider 36; During use, the T-shaped slider 36 can be pushed by the push head 35 to compress the second spring 37. At the same time, the plug board 39 is pulled through the connecting rod 38 to cancel the clamping with the installation frame 4. When installation is required, release the pressing of the push head 35 to cancel the pushing of the T-shaped slider 36. The T-shaped slider 36 can be reset under the elastic force of the second spring 37, so that the plug board 39 can be inserted into the installation frame 4 to fix the installation box 34, facilitating the subsequent replacement of the ventilation and noise reduction net 32 wound by the winding column 41 inside the installation box 34.

[0030] Embodiment 3: A noise reduction method for a building noise reduction window screen, comprising the following steps: S1: First, install the polyester fiber window screen 5 between the sliding plate 2 and the fixed cover 6, install the installation box 34, and at the same time fix the ventilation and noise reduction net 32 between the clamping plates 33; S2: When sound insulation operation is required, pull the sliding plate 2 to dock with the control box 8, and the polyester fiber window screen 5 stretches to achieve single-layer sound insulation; S2: Then rotate the first cover plate 3 and fix it with the spring pin 10. The pull rope 16 pulls the sliding tooth plate 23, and then the sliding tooth plate 23 meshes with the installation block 29, so that the insertion rod 18 moves to press the conductive sheet 25, and the control module inside the control box 8 is powered on. The control module controls the motor 31 to drive the lead screw 30 to rotate, and the plug board 39 slides. The ventilation and noise reduction net 32 is pulled to stretch through the clamping plates 33 to achieve double-layer sound insulation.

[0031] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A building noise reduction screen window, comprising a mounting frame (4) on which a polyester fiber window screen (5) is mounted, characterized in that: The inner side wall of the installation frame (4) is slidably connected to a sliding plate (2), the inner side wall of the installation frame (4) is fixedly installed with a control box (8), one end of the polyester fiber window screen (5) is connected to the sliding plate (2), a control module is arranged inside the control box (8), the outer side wall of the control box (8) is connected to a cover plate 2 (12) via a hinge, an installation cavity (24) is provided inside the control box (8), an electronic device (28) is movably installed on the inner wall of the installation cavity (24), a sliding block (27) is slidably connected to the inner side wall of the installation cavity (24), a conductive sheet (25) is fixedly installed between the outer side wall on the opposite side of the sliding block (27), a plastic spring (26) is fixedly installed between the sliding block (27) and the inner wall at the top of the installation cavity (24), the The outside of the conductive sheet (25) is connected to the control module via a wire. The top of the control box (8) is provided with a socket (9). The inner wall of the sliding plate (2) is provided with a fixed cavity (20). The inner side wall of the fixed cavity (20) is slidably connected to a sliding tooth plate (23). A spring (13) is fixedly installed between the sliding tooth plate (23) and the inner wall of the fixed cavity (20). The inner wall of the fixed cavity (20) is rotatably connected to a tooth column (19). The tooth column (19) meshes with the sliding tooth plate (23). The inner wall of the fixed cavity (20) is slidably connected to an insertion rod (18). The outer side wall of the insertion rod (18) is rotatably connected to a matching rod (22). The inner side wall of the tooth column (19) is provided with an arc groove (21). The arc groove (21) matches with the matching rod (22).

2. A building noise reduction screen window according to claim 1, characterized in that: The inner wall of the installation frame (4) is rotatably connected to a fixed cover (6), the fixed cover (6) and the inner wall of the installation frame (4) are connected to a locking bolt (7) via a thread, and the other end of the polyester fiber window screen (5) is movably mounted between the fixed cover (6) and the installation frame (4).

3. A building noise reduction screen window according to claim 2, characterized in that: The sliding tooth plate (23) is externally connected to a pulling assembly, and the other side of the installation frame (4) is provided with an auxiliary sound insulation mechanism, and the auxiliary sound insulation mechanism is connected to a control module inside the control box (8).

4. A building noise reduction screen window according to claim 3, characterized in that: The pulling assembly comprises a cover plate 1 (3), a connecting plate (14), and a guide plate (17); the cover plate 1 (3) is rotatably connected to the inner wall of the fixed cavity (20); and the connecting plate (14) is fixedly mounted on the outer side wall of the sliding tooth plate (23).

5. A building noise reduction screen window according to claim 4, characterized in that: The guide plate (17) is fixedly mounted on the inner side wall of the fixed cavity (20), a pull rope (16) is fixedly mounted between the cover plate 1 (3) and the connecting plate (14), and the pull rope (16) is inserted through the inner wall of the guide plate (17), and a positioning block (1) is fixedly mounted on the outer side wall of the cover plate 1 (3).

6. A building noise reduction screen window according to claim 5, characterized in that: A fixing plate (11) is fixedly mounted on the outer side wall of the mounting frame (4), a spring pin (10) is fixedly mounted on the top outer wall of the fixing plate (11), a fixing opening (15) is formed on the outer wall of the positioning block (1), and the spring pin (10) is movably inserted into the fixing opening (15).

7. The building noise reduction screen window according to claim 5, characterized in that: The auxiliary sound insulation mechanism comprises a mounting block (29), a motor (31), a ventilation and noise reduction net (32), and a mounting box (34); the motor (31) is fixedly mounted on the inner wall of the mounting frame (4); the output end of the motor (31) is connected to a lead screw (30) via a coupling; the mounting block (29) is slidably connected to the inner wall of the mounting frame (4); a clamping plate (33) is provided on the outer wall of the bottom of the mounting block (29); a clamping assembly is provided inside the mounting box (34); a partition plate (40) is fixedly mounted on the inner side wall of the mounting box (34); a winding column (41) is rotatably connected to the inner wall of the mounting box (34); a winding spring (42) is clamped between the winding column (41) and the inner wall of the mounting box (34); one end of the ventilation and noise reduction net (32) is wound around the outer wall of the winding column (41); and the other end of the ventilation and noise reduction net (32) is fixed between the clamping plates (33).

8. The building noise reduction screen window according to claim 7, characterized in that: The clamping assembly comprises a T-shaped slider (36) and an insert plate (39), wherein the T-shaped slider (36) is slidably connected to the inner side wall of the installation box (34), the insert plate (39) is slidably connected to the inner side wall of the installation box (34), and the other end of the insert plate (39) is movably inserted into the inner wall of the installation frame (4), a connecting rod (38) is rotatably connected between the T-shaped slider (36) and the insert plate (39), a spring 2 (37) is fixedly installed between the T-shaped slider (36) and the partition plate (40), and a push head (35) is slidably connected to the inner wall of the installation box (34), and the other end of the push head (35) is connected to the T-shaped slider (36).

9. A noise reduction method for a building noise reduction screen window according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: first install the polyester fiber window screen (5) between the sliding plate (2) and the fixed cover (6), install the installation box (34), and fix the ventilation and noise reduction net (32) between the clamping plates (33); S2: When sound insulation is required, the sliding plate (2) is pulled to connect with the control box (8), and the polyester fiber window screen (5) is stretched to achieve a first level of sound insulation; S2: The cover plate (3) is then rotated and fixed by the spring pin (10), the pull rope (16) pulls the sliding tooth plate (23), and then the sliding tooth plate (23) engages the mounting block (29) so that the plug rod (18) moves and presses the conductive sheet (25), the control module inside the control box (8) is energized, the control module controls the start motor (31) to drive the lead screw (30) to rotate, the plug plate (39) slides, and the ventilation noise reduction net (32) is stretched by the clamping plate (33) to achieve double sound insulation.

Images