Ventilation assembly of security door

Abstract

The utility model discloses a security door ventilation assembly, and particularly relates to the technical field of indoor ventilation, the security door ventilation assembly comprises a mounting opening formed in a security door, a mounting plate is arranged in the mounting opening, a ventilation cavity is formed in the mounting plate, and a fixed sound insulation plate is fixedly arranged at the bottom end in the ventilation cavity; a first sound absorption layer is fixedly arranged at the outer end of the fixed sound insulation plate; and a third sound absorption layer is fixedly arranged at the outer end of the movable sound insulation plate. Sound insulation and noise reduction are conducted on air passing through the interior of the ventilation cavity through the fixed sound insulation plate, the first sound absorption layer and the second sound absorption layer, the sound insulation effect is good, the passing area between the movable sound insulation plate and the third sound absorption layer and the fixed sound insulation plate and the first sound absorption layer can be adjusted by adjusting the positions of the movable sound insulation plate and the third sound absorption layer, and the sound insulation effect is good. And therefore, the flow speed of air in the ventilation cavity can be adjusted, the ventilation efficiency can be adjusted according to needs, and the ventilation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of indoor ventilation technology, specifically to a ventilation component for a security door. Background Technology

[0002] A security door is a door equipped with a security lock that can resist unauthorized opening under certain conditions for a certain period of time. It possesses a certain level of security protection and meets the corresponding security level. Security doors serve as the first line of defense for homeowners, ensuring home safety. Because security doors are relatively airtight, some may have ventilation windows to allow airflow.

[0003] Currently, most ventilation structures on security doors are square ventilation holes with dustproof nets installed at both ends. Such ventilation structures have poor sound insulation, and the size of the ventilation openings is fixed, the ventilation rate cannot be adjusted, and the ventilation effect is not good. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation component for security doors to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation component for a security door, comprising:

[0006] An installation opening is provided on the security door. An installation plate is provided inside the installation opening. A ventilation cavity is provided inside the installation plate. A fixed sound insulation plate is fixed at the bottom of the ventilation cavity. A first sound-absorbing layer is fixed at the outer end of the fixed sound insulation plate. The fixed sound insulation plate and the first sound-absorbing layer divide the ventilation cavity into a U-shaped air duct. A second sound-absorbing layer is fixed on the inner wall of the ventilation cavity.

[0007] A movable sound insulation panel is provided, with a third sound-absorbing layer fixedly provided at its outer end. The movable sound insulation panel and the third sound-absorbing layer are located on top of the fixed sound insulation panel and the first sound-absorbing layer. A first cavity is provided on the top wall of the ventilation cavity. A first limiting plate is provided inside the first cavity. The top ends of the movable sound insulation panel and the third sound-absorbing layer extend into the first cavity and are fixedly connected to the bottom end of the first cavity. A first threaded rod is rotatably connected to the top end of the first cavity. A first threaded groove is provided at the top ends of the first limiting plate and the movable sound insulation panel. The bottom end of the first threaded rod extends into the first threaded groove and is connected to the first threaded groove by a thread.

[0008] Preferably, a first rotating rod is provided inside the first cavity, one end of the first rotating rod extends to the front end of the mounting plate, a first bevel gear is fixedly provided at the other end of the first rotating rod, and a second bevel gear is fixedly provided at the top end of the first threaded rod. The first bevel gear and the second bevel gear mesh with each other to facilitate the rotation of the first threaded rod.

[0009] Preferably, a second cavity is provided on both sides of the ventilation cavity, and a second limiting plate is provided inside the second cavity. A limiting plug block is integrally connected to the outer side of the second limiting plate. A limiting plug groove is provided on both sides of the mounting port. One end of each of the two limiting plug blocks extends into the two limiting plug grooves respectively. A second threaded rod is rotatably connected to one side wall of the second cavity. A second threaded groove is provided on the inner side of the second limiting plate and the limiting plug block. One end of the second threaded rod extends into the second threaded groove and is threadedly connected to the second threaded groove, which facilitates the limiting and fixing of the mounting plate inside the mounting port.

[0010] Preferably, a second rotating rod is provided inside the second cavity. One end of the second rotating rod extends to the front end of the mounting plate, and a third bevel gear is fixedly provided at the other end of the second rotating rod. A fourth bevel gear is fixedly provided at the other end of the second threaded rod. The third bevel gear and the fourth bevel gear mesh with each other to facilitate the rotation of the second threaded rod.

[0011] Preferably, a rotating block is fixed at one end of both the first rotating rod and the second rotating rod. The outer side of the rotating block is flush with the front end face of the mounting plate. The first rotating rod, the second rotating rod, and the rotating block are all rotatably connected to the mounting plate. A cross groove is provided on the outer side of the rotating block to facilitate the rotation of the first rotating rod and the second rotating rod.

[0012] Preferably, a dustproof net is fixedly installed at the front and rear openings of the ventilation cavity to prevent dust from entering the room.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. By using fixed sound insulation panels, a first sound-absorbing layer, and a second sound-absorbing layer, the air passing through the ventilation cavity is sound-insulated and noise-reduced, resulting in good sound insulation. By adjusting the positions of the movable sound insulation panel and the third sound-absorbing layer, the passage area between the movable sound insulation panel, the third sound-absorbing layer, the fixed sound insulation panel, and the first sound-absorbing layer can be adjusted, thereby adjusting the airflow velocity inside the ventilation cavity. This allows the ventilation efficiency to be adjusted as needed, resulting in good ventilation.

[0015] 2. The mounting plate is fixed inside the mounting opening by limiting plug-in block and limiting plug-in slot, making the installation and removal of the mounting plate simple and convenient, and thus facilitating the cleaning and maintenance of the mounting plate and its structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall three-dimensional sectional structure of this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the anti-theft door of this utility model;

[0020] Figure 4 This is a three-dimensional sectional view of the mounting plate of this utility model. Figure 1 ;

[0021] Figure 5 This is a three-dimensional sectional view of the mounting plate of this utility model. Figure 2 ;

[0022] Figure 6 This is a three-dimensional cross-sectional view of the movable partition, the third sound-absorbing layer, and the first limiting plate of this utility model.

[0023] Figure 7 This is a three-dimensional cross-sectional view of the second limiting plate and the limiting plug-in block of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Security door; 2. Mounting opening; 3. Mounting plate; 4. Ventilation cavity; 5. Fixed sound insulation board; 6. First sound-absorbing layer; 7. Second sound-absorbing layer; 8. Movable sound insulation board; 9. Third sound-absorbing layer; 10. First cavity; 11. First limiting plate; 12. First threaded rod; 13. First threaded groove; 14. First rotating rod; 15. First bevel gear; 16. Second bevel gear; 17. Second cavity; 18. Second limiting plate; 19. Limiting insertion block; 20. Limiting insertion groove; 21. Second threaded rod; 22. Second threaded groove; 23. Second rotating rod; 24. Third bevel gear; 25. Fourth bevel gear; 26. Rotating block; 27. Dustproof net. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figures 1 to 2 and Figures 4 to 6A security door ventilation assembly is shown, comprising:

[0028] An installation opening 2 is provided on the security door 1. An installation plate 3 is provided inside the installation opening 2. A ventilation cavity 4 is provided inside the installation plate 3. A fixed sound insulation plate 5 is fixedly provided at the bottom of the ventilation cavity 4. A first sound absorption layer 6 is fixedly provided at the outer end of the fixed sound insulation plate 5. The fixed sound insulation plate 5 and the first sound absorption layer 6 divide the ventilation cavity 4 into a U-shaped air duct. A second sound absorption layer 7 is fixedly provided on the inner wall of the ventilation cavity 4.

[0029] A movable sound insulation panel 8 is provided, with a third sound-absorbing layer 9 fixedly installed at its outer end. The movable sound insulation panel 8 and the third sound-absorbing layer 9 are located on top of the fixed sound insulation panel 5 and the first sound-absorbing layer 6. A first cavity 10 is provided on the top wall of the ventilation cavity 4. A first limiting plate 11 is provided inside the first cavity 10. The top ends of the movable sound insulation panel 8 and the third sound-absorbing layer 9 extend into the first cavity 10 and are fixedly connected to the bottom end of the first cavity 10. A first threaded rod 12 is rotatably connected to the top end of the first cavity 10. A first threaded groove 13 is provided at the top end of the first limiting plate 11 and the movable sound insulation panel 8. The bottom end of the first threaded rod 12 extends into the first threaded groove 13 and is threadedly connected to the first threaded groove 13. A first rotating rod 14 is provided inside the first cavity 10. One end of the first rotating rod 14 extends to the front end of the mounting plate 3. A first bevel gear 15 is fixedly installed at the other end of the first rotating rod 14. A second bevel gear 16 is fixedly installed at the top end of the first threaded rod 12. The first bevel gear 15 and the second bevel gear 16 mesh with each other.

[0030] A dustproof net 27 is fixedly installed at the front and rear openings of the ventilation cavity 4.

[0031] When air is supplied indoors through a fresh air system, the stale indoor air flows to the outside through the ventilation cavity 4. During the airflow, the first sound-absorbing layer 6, the second sound-absorbing layer 7, and the third sound-absorbing layer 9 eliminate wind noise generated during the airflow. The fixed sound insulation panel 5 and the movable sound insulation panel 8 can provide sound insulation on both sides. When it is necessary to adjust the airflow speed, use a Torx screwdriver to turn the rotating block 26 on the first rotating rod 14. The rotating block 26 drives the first rotating rod 14 and the first bevel gear 15 to rotate. The first bevel gear 15 drives the second bevel gear 16 to rotate. The second bevel gear 16 drives the first threaded rod 12 to rotate. Since the first threaded rod 12 is connected to the first threaded groove 13 by a thread, the movable sound insulation panel 8 and the third sound-absorbing layer 9 move downwards with the rotation of the first threaded rod 12. The bottom of the movable sound insulation panel 8 and the third sound-absorbing layer 9 will approach the top of the fixed sound insulation panel 5 and the first sound-absorbing layer 6, thus reducing the ventilation area in the middle, thereby adjusting the ventilation rate.

[0032] This invention uses a fixed sound insulation plate 5, a first sound-absorbing layer 6, and a second sound-absorbing layer 7 to reduce noise from the air passing through the ventilation cavity 4, achieving good sound insulation. By adjusting the positions of the movable sound insulation plate 8 and the third sound-absorbing layer 9, the passage area between the movable sound insulation plate 8, the third sound-absorbing layer 9, and the fixed sound insulation plate 5 and the first sound-absorbing layer 6 can be adjusted, thereby adjusting the airflow velocity inside the ventilation cavity 4. This allows the ventilation efficiency to be adjusted as needed, resulting in good ventilation. This embodiment specifically solves the problem that in the prior art, ventilation structures on security doors are mostly square ventilation holes with dustproof nets at both ends. Such ventilation structures have poor sound insulation, fixed ventilation hole size, and no adjustable ventilation rate, resulting in insufficient ventilation effect.

[0033] This utility model provides, for example Figures 2 to 4 and Figure 7 The ventilation component of the security door shown has a second cavity 17 on both sides of the ventilation cavity 4. A second limiting plate 18 is provided inside the second cavity 17. A limiting plug block 19 is integrally connected to the outside of the second limiting plate 18. A limiting plug groove 20 is provided on both sides of the mounting port 2. One end of the two limiting plug blocks 19 extends into the two limiting plug grooves 20 respectively. A second threaded rod 21 is rotatably connected to one side wall of the second cavity 17. A second threaded groove 22 is provided on the inner side of the second limiting plate 18 and the limiting plug block 19. One end of the second threaded rod 21 extends into the second threaded groove 22 and is threadedly connected to the second threaded groove 22.

[0034] The second cavity 17 is provided with a second rotating rod 23. One end of the second rotating rod 23 extends to the front end of the mounting plate 3, and the other end of the second rotating rod 23 is fixedly provided with a third bevel gear 24. The other end of the second threaded rod 21 is fixedly provided with a fourth bevel gear 25. The third bevel gear 24 and the fourth bevel gear 25 mesh with each other. One end of the first rotating rod 14 and the second rotating rod 23 is fixedly provided with a rotating block 26. The outer side of the rotating block 26 is flush with the front end face of the mounting plate 3. The first rotating rod 14, the second rotating rod 23 and the rotating block 26 are all rotatably connected to the mounting plate 3. The outer side of the rotating block 26 is provided with a cross groove.

[0035] Using a Torx screwdriver, rotate the rotating blocks 26 on the two second rotating rods 23. The rotating blocks 26 drive the second rotating rods 23 and the third bevel gear 24 to rotate. The third bevel gear 24 drives the fourth bevel gear 25 to rotate. The fourth bevel gear 25 drives the second threaded rod 21 to rotate. Since the second threaded rod 21 is connected to the second threaded groove 22 by a thread, the second limiting plate 18 and the limiting insertion block 19 move closer to the fourth bevel gear 25 as the second threaded rod 21 rotates. One end of the limiting insertion block 19 will move from the limiting insertion... Once the groove 20 is removed, the mounting plate 3 can be taken out from the mounting port 2. During installation, the mounting plate 3 is inserted into the mounting port 2, and then the rotating block 26, the second rotating rod 23, and the third bevel gear 24 are rotated in the opposite direction. This allows the mounting plate 3 to be installed inside the mounting port 2. The mounting plate 3 is fixed inside the mounting port 2 by the limiting insertion block 19 and the limiting insertion groove 20, making the installation and removal of the mounting plate 3 simple and convenient, and thus facilitating the cleaning and maintenance of the mounting plate 3 and its structure.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ventilation component for a security door, characterized in that, include: An installation opening (2) is provided on the security door (1). An installation plate (3) is provided inside the installation opening (2). A ventilation cavity (4) is provided inside the installation plate (3). A fixed sound insulation plate (5) is fixed at the bottom of the ventilation cavity (4). A first sound absorption layer (6) is fixed at the outer end of the fixed sound insulation plate (5). The fixed sound insulation plate (5) and the first sound absorption layer (6) divide the ventilation cavity (4) into a U-shaped air duct. A second sound absorption layer (7) is fixed on the inner wall of the ventilation cavity (4). A movable sound insulation panel (8) is provided with a third sound-absorbing layer (9) fixed at its outer end. The movable sound insulation panel (8) and the third sound-absorbing layer (9) are located on the top of the fixed sound insulation panel (5) and the first sound-absorbing layer (6). A first cavity (10) is provided on the top wall of the ventilation cavity (4). A first limiting plate (11) is provided inside the first cavity (10). The top ends of the movable sound insulation panel (8) and the third sound-absorbing layer (9) extend into the first cavity (10) and are fixedly connected to the bottom end of the first cavity (10). A first threaded rod (12) is rotatably connected to the top end of the first cavity (10). A first threaded groove (13) is provided at the top end of the first limiting plate (11) and the movable sound insulation panel (8). The bottom end of the first threaded rod (12) extends into the first threaded groove (13) and is connected to the first threaded groove (13) by a thread.

2. The ventilation component for a security door according to claim 1, characterized in that: The first cavity (10) is provided with a first rotating rod (14), one end of the first rotating rod (14) extends to the front end of the mounting plate (3), the other end of the first rotating rod (14) is fixedly provided with a first bevel gear (15), the top end of the first threaded rod (12) is fixedly provided with a second bevel gear (16), and the first bevel gear (15) and the second bevel gear (16) mesh with each other.

3. A ventilation component for a security door according to claim 2, characterized in that: The ventilation cavity (4) has a second cavity (17) on both sides of its interior. The second cavity (17) has a second limiting plate (18) inside. The second limiting plate (18) is integrally connected to a limiting plug-in block (19) on its outer side. The mounting port (2) has a limiting plug-in groove (20) on both sides of its interior. One end of each of the two limiting plug-in blocks (19) extends into the two limiting plug-in grooves (20). A second threaded rod (21) is rotatably connected to one side of the interior of the second cavity (17). The second limiting plate (18) and the limiting plug-in block (19) have a second threaded groove (22) on their inner sides. One end of the second threaded rod (21) extends into the second threaded groove (22) and is threadedly connected to the second threaded groove (22).

4. A ventilation component for a security door according to claim 3, characterized in that: The second cavity (17) is provided with a second rotating rod (23). One end of the second rotating rod (23) extends to the front end of the mounting plate (3). The other end of the second rotating rod (23) is fixedly provided with a third bevel gear (24). The other end of the second threaded rod (21) is fixedly provided with a fourth bevel gear (25). The third bevel gear (24) and the fourth bevel gear (25) mesh with each other.

5. A ventilation component for a security door according to claim 4, characterized in that: One end of the first rotating rod (14) and the second rotating rod (23) is fixed with a rotating block (26). The outer side of the rotating block (26) is flush with the front end of the mounting plate (3). The first rotating rod (14), the second rotating rod (23) and the rotating block (26) are all rotatably connected to the mounting plate (3). The outer side of the rotating block (26) is provided with a cross groove.

6. A ventilation component for a security door according to claim 1, characterized in that: A dustproof net (27) is fixedly installed at the front and rear openings of the ventilation cavity (4).

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