A door frame profile

Abstract

This utility model discloses a door frame profile in the field of door frame profile technology, including a profile body. The profile body is a regular rectangular strip. Multiple sound insulation cavities are evenly spaced along the vertical direction inside the profile body. Each sound insulation cavity has a limiting protrusion with a specific shape. A sound insulation strip is installed inside each sound insulation cavity through the limiting protrusion. By setting multiple sound insulation cavities within the profile body and installing sound insulation strips with through holes inside, and selecting a suitable profile body according to the wall thickness, and using special concave fastening grooves and matching tenon-shaped parts for installation, the use of screws is reduced. This achieves the purpose of constructing a highly efficient sound insulation structure, flexibly adapting to different wall types, and simplifying the installation process. It achieves multiple reflections and refractions of sound between the sound insulation cavities, effectively blocking noise, better dispersing pressure, and ensuring a long-lasting and stable sound insulation effect. At the same time, it is convenient to install, reduces time costs, and facilitates later maintenance and component replacement.

Description

Technical Field

[0001] This utility model relates to the field of door frame profile technology, and in particular to a door frame profile. Background Technology

[0002] Today, the construction industry is placing increasingly higher demands on the performance of door frame profiles, with soundproofing and quick-installation technologies becoming new directions for industry development. In terms of soundproofing technology, a specially designed sound-insulating cavity structure, combined with sound-absorbing cotton and damping materials, effectively blocks external noise and reduces sound energy transmission, creating a quiet indoor environment. Quick-installation technology employs a modular design with precisely prefabricated components, coupled with quick-connecting components such as snap-fit ​​and mortise-and-tenon joints. The installation process requires no complex tools or large amounts of manpower, significantly shortening construction time and improving work efficiency.

[0003] Existing door frame devices suffer from a lack of diverse sound insulation structures, resulting in poor soundproofing and ineffective blocking of external noise, allowing sound to easily penetrate. The extensive use of screws during installation makes the process cumbersome, time-consuming, and costly, and can also lead to uneven stress on components, affecting the overall structural stability of the door frame and causing loosening and deformation over time. Furthermore, they lack flexibility in adapting to different wall thicknesses, failing to meet diverse construction needs and often requiring customization or additional modifications, further increasing construction difficulty and costs. Therefore, we propose a new door frame profile to address the aforementioned problems. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide a door frame profile that can solve the problem of existing door frame devices having a single sound insulation structure, resulting in poor sound insulation performance, ineffective blocking of external noise, and easy sound penetration. The extensive use of screws for fixing during installation makes the process cumbersome and complex, time-consuming, and costly, and may also affect the overall structural stability of the door frame due to uneven stress on components, leading to loosening and deformation over long-term use. Furthermore, it lacks flexibility in adapting to different wall thicknesses, making it difficult to meet diverse construction needs, often requiring customization or additional modifications, which only increases construction difficulty and cost.

[0006] To solve the above-mentioned technical problems, this utility model provides a door frame profile, which adopts the following technical solution: it includes a profile body, the profile body is a regular rectangular strip, and multiple sound insulation cavities are equally spaced along the vertical direction inside the profile body. Each sound insulation cavity is provided with a limiting protrusion with a specific shape. A sound insulation strip is provided inside the sound insulation cavity through the limiting protrusion. The sound insulation strip has several through holes. Furthermore, the profile body can be selected from different pre-set specifications according to the actual thickness of the wall, that is, a profile body with more sound insulation cavities is selected when the wall is thicker, and a profile body with fewer sound insulation cavities is selected when the wall is thinner.

[0007] Optionally, a first fastening cavity with a special concave shape is opened in front of the sound insulation cavity. The outer periphery and the inner special concave structure of the first fastening cavity together form a first fastening groove. A first snap-fit ​​door frame component is fastened inside the first fastening groove. A matching tenon is provided behind the first snap-fit ​​door frame component, and the first snap-fit ​​door frame component is fastened to the profile body through the matching tenon.

[0008] Optionally, a second fastening cavity with the same structure as the first fastening cavity is opened directly behind the sound insulation cavity; the outer periphery and the special concave structure inside the second fastening cavity together form a second fastening groove, and a sound insulation component is fastened and installed inside the second fastening groove, and two sealing strips are provided in the groove on the left outer side of the sound insulation component.

[0009] Optionally, a third fastening groove is provided directly behind the sound insulation component; a second snap-fit ​​door frame component is fastened inside the third fastening groove, and the door frame is composed of three profile bodies with the same structure, and adjacent profile bodies are connected by L-shaped corner joints.

[0010] Optionally, the corner connector is installed at the two sound insulation cavities. The corner connector has a groove on its outside that matches the inside of the sound insulation cavity. The corner connector and the profile body are reliably connected by fastening bolts.

[0011] Optionally, the main body of the profile, the first snap-fit ​​door frame component, the sound insulation component, and the second snap-fit ​​door frame component are all hollow structures. Reinforcing ribs are provided in the weak parts of their structures, such as edges, corners, and areas with large spans, to enhance the overall strength and stability of each component and ensure that the door frame is not easily deformed or damaged during long-term use.

[0012] In summary, this utility model offers at least one of the following beneficial effects: 1. By setting multiple sound insulation cavities within the main body of the profile and installing sound insulation strips with through holes inside, and by selecting a suitable main body profile based on the wall thickness, the goal of constructing a highly efficient sound insulation structure and flexibly adapting to different wall types is achieved. This allows sound to be reflected and refracted multiple times between the sound insulation cavities, effectively blocking noise. Compared to a single sound insulation cavity, it can better distribute pressure, ensuring a long-lasting and stable sound insulation effect. Even if individual sound insulation cavities malfunction, the overall sound insulation performance is not significantly affected, meeting diverse building construction needs.

[0013] 2. By employing a special concave fastening groove in conjunction with matching interlocking tenons on the door frame and sound insulation components, the traditional installation method that relies heavily on screws is eliminated. Only a small number of screws are used at necessary connections to the main profile (such as corner joints connecting to the main profile), simplifying the installation process and reducing costs. This enables quick and convenient installation, significantly reducing installation difficulty and time costs, while ensuring the overall stability of the door frame structure. Even under long-term use and external forces, it is not prone to loosening or deformation. Furthermore, this modular design facilitates later maintenance and component replacement. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the main body of the profile of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the present invention.

[0018] Figure 4 This is a schematic diagram of the multi-morphological structure of this utility model;

[0019] Figure 5 This is a partial schematic diagram of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Main body of the profile; 2. Sound insulation cavity; 3. Limiting protrusion; 4. Sound insulation strip; 5. Hole; 6. First fastening cavity; 7. First fastening groove; 8. First snap-fit ​​door frame component; 9. Fitting tenon; 10. Second fastening cavity; 11. Second fastening groove; 12. Sound insulation component; 13. Sealing strip insertion groove; 14. Third fastening groove; 15. Second snap-fit ​​door frame component; 16. Corner joint; 17. Slot; 18. Fastening bolt; 19. Reinforcing rib. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0022] Example 1, refer to Figure 1-5 In this embodiment, to address the problem that some existing door frame devices have a single sound insulation structure, resulting in poor sound insulation performance and ineffective blocking of external noise, allowing sound to easily penetrate, and to solve the problem that the extensive use of screws for fixing during installation makes the installation process cumbersome and complex, time-consuming, and costly, and may also affect the overall structural stability of the door frame due to uneven stress on components, leading to loosening and deformation over long-term use, and lacking flexibility in adapting to different wall thicknesses, making it difficult to meet diverse building construction needs, often requiring customization or additional modifications, which only increases construction difficulty and cost, this utility model discloses a door frame profile.

[0023] The system includes a profile body 1, which is a regular rectangular strip. Multiple sound insulation cavities 2 are evenly spaced along the vertical direction inside the profile body 1. Each sound insulation cavity 2 has a limiting protrusion 3 of a specific shape. Sound insulation strips 4 are installed inside the sound insulation cavities 2 via the limiting protrusions 3. Each sound insulation strip 4 has several through holes 5. Furthermore, the profile body 1 can be selected from pre-set different specifications to match the actual thickness of the wall. Specifically, a profile body 1 with more sound insulation cavities 2 is selected for thicker walls, and a profile body 1 with fewer sound insulation cavities 2 is selected for thinner walls. By creating multiple sound insulation cavities 2 evenly spaced along the vertical direction inside the regular rectangular strip profile body 1, and by installing specific-shaped limiting protrusions 3 in each sound insulation cavity 2 for installing sound insulation strips 4, with several through holes 5 inside the sound insulation strips 4, a multi-layered sound insulation structure is achieved. Multiple soundproof chambers 2 can form a more complex sound insulation structure. As sound propagates, it needs to be constantly reflected and refracted between these chambers, increasing the path length of sound propagation and causing the sound energy to be continuously lost through multiple reflections and refractions, thus more effectively blocking noise. At the same time, compared to a single large soundproof chamber 2, multiple soundproof chambers 2 are structurally more stable and balanced, better distributing pressure and avoiding deformation caused by uneven local stress, ensuring the durability of the sound insulation effect. Even if one soundproof chamber 2 malfunctions, the others can still continue to function, ensuring that the overall sound insulation performance is not significantly affected. Furthermore, the profile body 1 can select the appropriate number and type of soundproof chambers 2 from pre-set different specifications according to the actual thickness of the wall, achieving flexible adaptation to different wall thicknesses, realizing convenient and efficient installation, and meeting diverse building construction needs.

[0024] A first fastening cavity 6 with a special concave shape is opened at the front of the sound insulation cavity 2. The outer periphery and the inner special concave structure of the first fastening cavity 6 together form a first fastening groove 7. A first snap-fit ​​door frame component 8 is fastened inside the first fastening groove 7. A matching tenon 9 is provided at the rear of the first snap-fit ​​door frame component 8. The first snap-fit ​​door frame component 8 is fastened to the profile body 1 through the matching tenon 9. By opening the first fastening cavity 6 with a special concave shape at the front of the sound insulation cavity 2, and making its outer periphery and the inner special concave structure together form the first fastening groove 7, the first snap-fit ​​door frame component 8 with the matching tenon 9 is installed in the groove, eliminating the traditional screw installation method. This design simplifies the installation process, achieves fast and convenient installation, greatly reduces installation difficulty and time cost, and ensures the firmness of the connection between the first snap-fit ​​door frame component 8 and the profile body 1, ensuring the structural stability of the door frame during long-term use and preventing it from easily loosening or falling off.

[0025] A second fastening cavity 10, identical in structure to the first fastening cavity 6, is opened directly behind the sound insulation cavity 2. The outer periphery and internal special concave structure of the second fastening cavity 10 together form a second fastening groove 11. A sound insulation component 12 is fastened inside the second fastening groove 11. Two sealing strip insertion grooves 13 are provided on the left outer side of the sound insulation component 12. By opening a second fastening cavity 10, identical in structure to the first fastening cavity 6, directly behind the sound insulation cavity 2, and forming a second fastening groove 11 with its outer periphery and internal special concave structure, and fastening the sound insulation component 12 within the groove, and by providing two sealing strip insertion grooves 13 on the left outer side of the sound insulation component 12, the installation process is simplified, and the installation error tolerance is improved. This achieves the effect of quick positioning and precise installation of the sound insulation component 12, providing great convenience for construction personnel. Even those with insufficient experience can quickly get started, effectively improving construction efficiency and reducing the time cost caused by inaccurate alignment and repeated adjustments during installation.

[0026] A third fastening groove 14 is provided directly behind the sound insulation component 12; a second snap-fit ​​door frame component 15 is fastened inside the third fastening groove 14. The door frame is composed of three identical profile bodies 1, which are connected by L-shaped corner connectors 16. By setting the third fastening groove 14 directly behind the sound insulation component 12, fastening the second snap-fit ​​door frame component 15 inside the groove, and constructing the door frame with three identical profile bodies 1, and connecting adjacent profile bodies 1 with L-shaped corner connectors 16, the door frame assembly method is optimized. This achieves the effect of rapid splicing and assembly of the door frame, making the door frame construction process more efficient and ensuring the stability and firmness of the overall door frame structure. At the same time, this standardized and modular design facilitates later maintenance and replacement of parts.

[0027] Corner connectors 16 are installed at the two soundproof cavities 2. The exterior of each corner connector 16 has a matching groove 17 that corresponds to the interior of each soundproof cavity 2. The corner connectors 16 and the main body of the profile 1 are reliably connected using fastening bolts 18. By installing the corner connectors 16 at the two soundproof cavities 2, providing matching grooves 17 on the exterior of the corner connectors 16, and using fastening bolts 18 to reliably connect the corner connectors 16 and the main body of the profile 1, the stability of the connection between adjacent main bodies of the profile 1 is enhanced. Precise positioning and installation are achieved, ensuring a tight connection between all parts of the door frame, effectively improving the overall structural strength of the door frame, and allowing the door frame to withstand various external forces without deformation or disintegration during long-term use.

[0028] The main body 1, the first snap-fit ​​door frame component 8, the sound insulation component 12, and the second snap-fit ​​door frame component 15 are all hollow structures. Reinforcing ribs 19 are installed at weak points in their structures, such as edges, corners, and areas with large spans, to enhance the overall strength and stability of each component. This ensures that the door frame is not easily deformed or damaged during long-term use. By designing the main body 1, the first snap-fit ​​door frame component 8, the sound insulation component 12, and the second snap-fit ​​door frame component 15 as hollow structures, lightweight design is achieved while reducing material costs. Furthermore, reinforcing ribs 19 are installed at weak points such as edges, corners, and areas with large spans, achieving the goal of enhancing overall strength and stability while maintaining a lightweight structure. This ensures that the door frame is not easily deformed or damaged even under various external forces during long-term use, effectively extending the service life of the door frame and improving its practicality and durability.

[0029] Door frame profile installation method and quality inspection process: During installation, first, precisely align the slot 17 of the L-shaped corner connector 16 with the sound insulation cavity 2 of the main body 1 of the profile, and firmly tighten it with the fastening bolts 18 to form the door frame. Next, use expansion bolts to firmly fix the door frame to the wall to ensure a secure installation. Then, in the first fastening groove 7 directly in front of the three sound insulation cavities 2, insert the corresponding first snap-fit ​​door frame piece 8, align the mating tenon 9 on its rear side with the groove, and press firmly until it is tightly embedded. Then, in the second fastening groove 11 directly behind the three sound insulation cavities 2, install the sound insulation components 12 one by one. If the sound insulation component 12 has a sealing strip insertion groove 13 on its left outer side and is equipped with a sealing strip, insert the sealing strip into the corresponding groove. Finally, in the third fastening groove 14 directly behind the three sound insulation components 12, install the second snap-fit ​​door frame piece 15, thus completing the entire installation process.

[0030] The specific working principle is as follows: By setting multiple sound insulation cavities 2 within the main body 1 of the profile and installing sound insulation strips 4 with through holes 5 inside, and selecting a suitable main body 1 of the profile based on the wall thickness, the goal of constructing a highly efficient sound insulation structure and flexibly adapting to different wall types is achieved. Sound is reflected and refracted multiple times between the sound insulation cavities 2, effectively blocking noise. Compared to a single sound insulation cavity 2, it can better distribute pressure, ensuring a long-lasting and stable sound insulation effect. Even if individual sound insulation cavities 2 malfunction, the overall sound insulation performance is not significantly affected, meeting diverse building construction needs. By using a special concave fastening groove in conjunction with a snap-fit ​​door frame with matching interlocking tenons 9 and sound insulation components 12, the traditional installation method that relies heavily on screws is abandoned. Only a small number of screws are used at necessary connection points of the main body 1 (such as corner joints 16 connecting to the main body 1), simplifying the installation process and reducing installation costs. It enables quick and convenient installation, greatly reducing installation difficulty and time costs, while ensuring the stability of the overall door frame structure. Even under external force during long-term use, it is not easy to loosen or deform. Furthermore, this modular design facilitates later maintenance and replacement of parts.

[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A door frame profile comprising a profile body (1), characterized in that: The profile body (1) is a regular rectangular strip. Multiple sound insulation cavities (2) are equally spaced along the vertical direction inside the profile body (1). Each sound insulation cavity (2) is provided with a limiting protrusion (3) with a specific shape. A sound insulation strip (4) is provided inside the sound insulation cavity (2) through the limiting protrusion (3). The sound insulation strip (4) is provided with several through holes (5). Furthermore, the profile body (1) can select a type with a number of sound insulation cavities (2) that matches the actual thickness of the wall from different pre-set specifications. That is, when the wall is thicker, a profile body (1) with more sound insulation cavities (2) is selected, and when the wall is thinner, a profile body (1) with fewer sound insulation cavities (2) is selected.

2. A door frame section according to claim 1, characterised in that: The sound insulation cavity (2) has a special concave first fastening cavity (6) in front of it. The outer periphery and the special concave structure inside the first fastening cavity (6) together form a first fastening groove (7). A first snap-fit ​​door frame piece (8) is fastened inside the first fastening groove (7). A matching tenon (9) matching the first fastening groove (7) is provided behind the first snap-fit ​​door frame piece (8). The first snap-fit ​​door frame piece (8) is fastened to the profile body (1) through the matching tenon (9).

3. A door frame section according to claim 1, characterised in that: The sound insulation cavity (2) has a second fastening cavity (10) with the same structure as the first fastening cavity (6) in front. The outer periphery and the inner special concave structure of the second fastening cavity (10) together form a second fastening groove (11). The sound insulation component (12) is fastened inside the second fastening groove (11). The sound insulation component (12) has two sealing strip insertion grooves (13) on the left outer side.

4. A door frame section according to claim 3, characterised in that: The sound insulation component (12) is provided with a third fastening groove (14) at its rear; a second snap-fit ​​door frame component (15) is fastened inside the third fastening groove (14). The door frame is composed of three profile bodies (1) with the same structure, and adjacent profile bodies (1) are connected by L-shaped corner connectors (16).

5. A door frame section according to claim 4, characterised in that: The corner connector (16) is installed at the two sound insulation cavities (2). The corner connector (16) has a groove (17) on its outside that matches the inside of the sound insulation cavity (2). The corner connector (16) and the profile body (1) are reliably connected by fastening bolts (18).

6. A door frame section according to claim 1, characterised in that: The main body of the profile (1), the first snap-fit ​​door frame component (8), the sound insulation component (12), and the second snap-fit ​​door frame component (15) are all hollow structures. Reinforcing ribs (19) are provided in the weak parts of their structure, such as edges, corners, and areas with large spans, to enhance the overall strength and stability of each component and ensure that the door frame is not easily deformed or damaged during long-term use.

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