Aluminum alloy door frame corner connecting structure

Abstract

The utility model relates to aluminium alloy door frame technical field provides an aluminium alloy door frame corner connecting structure, include: crosspiece and vertical bar, first connecting frame, activity setting between crosspiece and vertical bar, and one side swing joint is with the vertical bar of identical size dimension consistency, connecting piece, fixed setting in one end of crosspiece and vertical bar, with first connecting frame and second connecting frame can detachable connection, first fixed part, fixed setting in the side surface of first connecting frame and second connecting frame, second fixed part, fixed setting in the upper and lower sides of first connecting frame and second connecting frame, the utility model discloses through the design collocation simple connection mode of modularization, let installation step can be simplified, reduced to professional skill and the requirement of complex tool, improved installation efficiency, and each component adopts detachable connection, when a certain component is damaged, can be targeted disassembly replacement, do not need to disassemble entire door frame, reduce material waste, reduce artificial and time cost, effectively reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door frame technology, and in particular to an aluminum alloy door frame corner connection structure. Background Technology

[0002] In the field of modern architectural decoration, aluminum alloy door frames are widely used in various construction projects due to their advantages such as light weight, high strength, corrosion resistance, and aesthetic appeal. The corner connection structure of aluminum alloy door frames is a key component ensuring the overall performance of the door frame; its design and connection quality directly affect the stability, service life, and installation efficiency of the door frame.

[0003] However, existing technologies, such as Chinese Publication No. CN216406594U, describe a corner connection structure for an anti-deformation aluminum alloy door frame. This structure includes a first fixed frame, a first plug-in frame, a first connecting block, a second connecting block, and a third connecting block, all positioned at a 45° angle between the top and left sides. The front and back of the first fixed frame are respectively fixedly connected to the second fixed frame and the third fixed frame, which is also positioned at a 45° angle between the top and left sides. The top and left sides of the first fixed frame are respectively provided with a first connecting groove and a first threaded hole. The left side of the second fixed frame is provided with a second threaded hole. The front and back of the first plug-in frame are respectively fixedly connected to the second plug-in frame and the third plug-in frame. The left side and top of the first plug-in frame are respectively provided with a first plug-in groove and a third threaded hole. The left side and top of the second plug-in frame are respectively provided with a second plug-in groove and a fourth threaded hole. This invention can prevent the door frame from deforming due to impact and improves the service life of the door frame.

[0004] However, in actual use, it can be found that this device requires construction personnel to connect multiple components in sequence, including the first fixed frame, the second fixed frame, the third fixed frame, the first plug-in frame, the second plug-in frame, the third plug-in frame, the first connecting block, the second connecting block, and the third connecting block. It involves 5 sets of plug slots and 4 sets of bolt connections. The installation steps are very complicated and require high precision from the construction personnel. It is easy to cause insufficient structural strength due to omissions or incorrect installations. In addition, this device requires the disassembly of multiple sets of bolts and plugs during maintenance, resulting in high maintenance costs. If one of the components is damaged, it may be necessary to disassemble and replace the entire device. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of the existing technology, such as the cumbersome installation steps, the high precision requirements of the construction personnel, the insufficiency of structural strength due to omissions or incorrect installations, and the high maintenance cost due to the need to disassemble multiple sets of bolts and connectors during maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum alloy door frame corner connection structure, comprising: a horizontal bar and a vertical bar; a first connecting frame, movably disposed between the horizontal bar and the vertical bar, and movably connected to a vertical bar of the same size on one side; a connecting member, fixedly disposed at one end of the horizontal bar and the vertical bar, and detachably connected to the first connecting frame and the second connecting frame; a first fixing member, fixedly disposed on the side of the first connecting frame and the second connecting frame; and a second fixing member, fixedly disposed on the upper and lower sides of the first connecting frame and the second connecting frame.

[0007] The technical advantages of adopting the above-mentioned further solution are: This device, through modular design, allows for the division of labor and cooperation among its components. The first and second connecting frames are detachably connected to the horizontal and vertical supports via connectors, while the side and top / bottom fixing components enhance stability. Its installation is simple, reducing professional requirements; during maintenance, damaged parts can be replaced individually, saving costs and combining high efficiency with economy.

[0008] In a preferred embodiment, the connector includes: a limiting stud, which is fixedly connected to one side of the horizontal and vertical blocks respectively, passes through the limiting holes at both ends of the first and second connecting frames and extends inward, and one end of which is movably connected to a limiting nut by a thread to limit the displacement of the limiting stud in the horizontal direction.

[0009] The technical effect of adopting the above-mentioned further solution is that by using the limiting stud through the limiting hole of the connecting frame and cooperating with the limiting nut to limit the horizontal displacement, the horizontal and vertical blocks can be detachably connected. During installation, the nut can be tightened to fix it, and during maintenance, the nut can be removed to replace the parts, which simplifies the operation and reduces the maintenance cost, ensuring a stable connection and easy disassembly and assembly.

[0010] In a preferred embodiment, the first fixing member includes a fixing stud, which is longitudinally disposed in a through hole on the limiting stud. One end of the stud passes through the second connecting frame, and the other end is fixedly connected to a fixing nut disposed inside the first connecting frame by thread engagement, so as to limit the relative displacement between the first connecting frame and the second connecting frame.

[0011] The technical advantages of adopting the above-mentioned further solution are as follows: the first fixing member passes through the through hole of the limiting stud through the fixing stud, one end of which passes through the second connecting frame, and the other end is threadedly connected to the fixing nut inside the first connecting frame, which can limit the relative displacement of the two connecting frames. It can enhance the lateral stability of the connecting frame, ensure structural stability, and facilitate disassembly and assembly, making it convenient for precise positioning and maintenance, and improving the overall structural reliability.

[0012] In a preferred embodiment, the second fastener includes: a lower corner bracket, fixedly disposed at the bottom of the first connecting frame and the second connecting frame; and an upper corner bracket, fixedly disposed at the upper end of the first connecting frame and the second connecting frame; wherein the lower corner bracket and the upper corner bracket are both fixedly connected to the first connecting frame and the second connecting frame via quick-connect fittings.

[0013] The technical advantages of adopting the above-mentioned further solution are as follows: the second fixing component fits against the inner sides of the horizontal and vertical blocks through the L-shaped lower and upper corner brackets, and is quickly fixed with the help of the connecting posts, limiting blocks, and limiting grooves of the quick-connect component. This enhances the stability of the upper and lower ends, improves the structural resistance to deformation, and the quick-connect design facilitates disassembly and assembly. During maintenance, damaged corner brackets can be replaced individually, reducing maintenance costs and ensuring the overall stability of the door frame.

[0014] In a preferred embodiment, the quick-connect component includes: a connecting post, fixedly connected to the side of the first connecting frame and the second connecting frame, and multiple sets are evenly arranged; a limiting block, rotatably connected to one side of the connecting post, and passing through the limiting groove provided on the first connecting frame and the second connecting frame; wherein, the limiting groove is provided with a slot that allows only the limiting block to pass through, for limiting the detachment of the limiting groove.

[0015] The technical advantage of adopting the above-mentioned further solution is that the quick-connect component is fixed to the side of the connecting frame by the connecting post, and the limiting block passes through the limiting groove after rotation, using the groove to prevent it from falling off. This allows for quick assembly and disassembly of the lower and upper corner frames, and positioning and fixing can be completed without tools.

[0016] In a preferred embodiment, both the lower and upper corner brackets are integrally formed from high-strength aluminum alloy and have an L-shaped structure, with their two right-angled sides respectively fitting against the inner sides of the horizontal and vertical rails.

[0017] The technical effects of adopting the above-mentioned further solution are as follows: the lower corner frame and the upper corner frame adopt a high-strength aluminum alloy one-piece molded L-shaped structure, with the two right-angled sides fitting the inner side of the horizontal and vertical bars, which can enhance the structural strength and stability at the corner and improve the resistance to deformation; the one-piece molding process reduces seams, avoids stress concentration, and the aluminum alloy material is corrosion resistant, extends service life, and ensures the overall stability of the door frame.

[0018] In a preferred embodiment, an anti-slip washer is provided on the side of the limiting block that fits into the limiting groove.

[0019] The technical advantages of adopting the above-mentioned further solution are as follows: The anti-slip washer, placed on the mating side of the limiting block and the limiting groove, increases contact friction, preventing the limiting block from loosening or falling off due to vibration, and improving the connection stability of the quick-connect parts. Simultaneously, it reduces direct frictional wear between components, extends service life, ensures a stable connection between the lower corner frame, upper corner frame, and connecting frame, and enhances the reliability of the door frame corner structure.

[0020] In a preferred embodiment, the horizontal and vertical supports are provided with connecting bolts to connect the horizontal and vertical frames.

[0021] The technical effect of adopting the above-mentioned further solution is that the horizontal and vertical bars are connected by connecting bolts to the horizontal and vertical frames, which can realize the detachable fixing between the frames and facilitate assembly, disassembly and adjustment as needed.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. This utility model adopts a modular design, with clear division of labor among components and a simple and intuitive connection method. When installing the connectors, after the limiting stud passes through the limiting holes of the first and second connecting frames, only the limiting nut needs to be tightened to initially fix the horizontal and vertical supports to the connecting frames. The first fixing component, through the threaded engagement of the fixing stud and the fixing nut, can quickly limit the relative displacement of the two connecting frames. The lower and upper corner frames in the second fixing component, with the help of the connecting post, limiting block, and limiting groove of the quick-connect component, can be quickly installed without complex tools or cumbersome operations. This design significantly reduces the reliance on professional skills and complex tools during installation, allowing ordinary installers to quickly get started, significantly simplifying the overall installation steps and improving installation efficiency.

[0024] 2. In this utility model, the connector, the first fixing member, and the second fixing member all adopt a detachable connection method. When a component of the door frame corner connection structure is damaged, it is not necessary to disassemble the entire door frame; only the damaged component needs to be disassembled and replaced. For example, if the limit nut is worn, only the old nut needs to be unscrewed and replaced with a new one; if the limit block is damaged, it can also be quickly rotated, disassembled, and a new limit block can be installed. This detachable design avoids the situation of replacing the entire connection structure or door frame due to partial damage, reduces material waste, and lowers labor and time costs during maintenance, thereby effectively reducing the overall maintenance cost. Attached Figure Description

[0025] Figure 1 A three-dimensional structural diagram of an aluminum alloy door frame corner connection structure provided by this utility model;

[0026] Figure 2 A schematic diagram of the internal structure of an aluminum alloy door frame corner connection structure provided by this utility model;

[0027] Figure 3 A schematic diagram of the internal front view of an aluminum alloy door frame corner connection structure provided by this utility model;

[0028] Figure 4 This is a partially enlarged structural diagram of an aluminum alloy door frame corner connection structure provided by this utility model.

[0029] Legend:

[0030] 1. First connecting frame; 2. Second connecting frame; 3. Horizontal bar; 4. Vertical bar; 5. Limiting stud; 6. Limiting hole; 7. Through hole; 8. Fixing stud; 9. Fixing nut; 10. Lower corner bracket; 11. Upper corner bracket; 12. Connecting column; 13. Limiting block; 14. Limiting groove; 15. Limiting nut; 16. Connecting bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-4 This utility model provides a technical solution: an aluminum alloy door frame corner connection structure, characterized in that it includes a horizontal bar 3, a vertical bar 4, a first connecting frame 1, a second connecting frame 2, a connector, a first fixing member, and a second fixing member;

[0033] The first connecting frame 1 is movably installed in the corner area formed by the horizontal bar 3 and the vertical bar 4, and one side of it can be flexibly connected to the vertical bar 4 with a matching size. The second connecting frame 2 cooperates with the first connecting frame 1 to form the main frame of the corner connection.

[0034] The connectors are fixed to the ends of the horizontal bar 3 and the vertical bar 4 respectively, and are detachably connected to the first connecting frame 1 and the second connecting frame 2 in a specific manner to facilitate the installation and disassembly of the door frame components;

[0035] The first fastener is securely mounted on the side of the first connecting frame 1 and the second connecting frame 2 to enhance the lateral connection strength between the two.

[0036] The second fixing component is installed on the upper and lower sides of the first connecting frame 1 and the second connecting frame 2 respectively, which further improves the stability of the corner connection structure in the vertical direction, so that the entire aluminum alloy door frame corner connection structure forms a firm and stable connection system after assembly, which facilitates the installation, disassembly and maintenance of the door frame.

[0037] like Figure 1-4 As shown, the connector includes a limiting stud 5 and a limiting nut 15; the limiting stud 5 is fixed to one side of the horizontal bar 3 and the vertical bar 4 respectively, and can pass through the limiting holes 6 pre-opened at both ends of the first connecting frame 1 and the second connecting frame 2 and extend inward.

[0038] The limiting nut 15 is movably connected to one end of the limiting stud 5 via a thread. After tightening the limiting nut 15, it can effectively restrict the movement of the limiting stud 5 in the horizontal direction, thereby tightly connecting the horizontal bar 3, the vertical bar 4, the first connecting frame 1, and the second connecting frame 2 together, realizing stable assembly and convenient disassembly at the corner of the door frame.

[0039] like Figure 1-4 As shown, the first fixing component includes a fixing stud 8 and a fixing nut 9; the fixing stud 8 passes longitudinally through the through hole 7 longitudinally provided on the limiting stud 5, one end passes through the second connecting frame 2, and the other end is fixedly connected to the fixing nut 9 located inside the first connecting frame 1 by thread engagement; through this connection method, the relative displacement between the first connecting frame 1 and the second connecting frame 2 is effectively limited, ensuring that the two connecting frames of the corner connection structure always maintain a stable positional relationship during the use of the door frame, thereby improving the overall structural strength of the door frame.

[0040] like Figure 1-4 As shown, the second fixing component consists of a lower corner bracket 10, an upper corner bracket 11, and a quick-connect component; the lower corner bracket 10 is fixedly installed at the bottom of the first connecting frame 1 and the second connecting frame 2, and the upper corner bracket 11 is fixedly installed at the upper end of the first connecting frame 1 and the second connecting frame 2; both the lower corner bracket 10 and the upper corner bracket 11 are integrally formed from high-strength aluminum alloy and have an L-shaped structure, with their two right-angled sides tightly fitting the inner sides of the horizontal bar 3 and the vertical bar 4, respectively.

[0041] like Figure 1-4 As shown, the quick-connect component includes a connecting post 12 and a limiting block 13. The connecting post 12 is fixed to the side of the first connecting frame 1 and the second connecting frame 2 and is evenly distributed in multiple sets. The limiting block 13 is rotatably connected to one side of the connecting post 12 and can pass through the limiting groove 14 on the first connecting frame 1 and the second connecting frame 2.

[0042] The limiting groove 14 is provided with a special slot, which only allows the limiting block 13 to pass through at a certain angle. By simply twisting the limiting block 13 to change its state, the limiting block 13 can be effectively prevented from falling off. The lower corner frame 10, upper corner frame 11 and the first connecting frame 1 and the second connecting frame 2 can be quickly and firmly connected through quick-connect parts, which enhances the vertical stability of the door frame corner and the overall structural strength. At the same time, the anti-slip pads provided on the contact side of the limiting block 13 and the limiting groove 14 further improve the reliability of the connection. In addition, the horizontal bar 3 and the vertical bar 4 are provided with connecting bolts 16 for connecting the horizontal frame and the vertical frame, which completes the assembly of the entire door frame structure.

[0043] Working Principle: This device is an aluminum alloy door frame corner connection structure. In use, the first connecting frame 1 is first placed in the corner area formed by the horizontal bar 3 and the vertical bar 4 to initially determine its installation position. Then, the limiting studs 5 are fixedly connected to one side of the horizontal bar 3 and the vertical bar 4 respectively. The limiting hole 6 on the first connecting frame 1 is aligned with the limiting stud 5, so that the limiting stud 5 passes through the limiting hole 6 and extends inward. Next, a limiting nut 15 is screwed onto one end of the limiting stud 5. By tightening the limiting nut 15, the horizontal displacement of the limiting stud 5 is restricted, thereby initially fixing the horizontal bar 3, the vertical bar 4, and the first connecting frame 1 together. Then, the second connecting frame 2 is placed on top of the first connecting frame 1. A fixing stud 8 is longitudinally inserted through the longitudinal through hole 7 on the limiting stud 5, so that one end of the fixing stud 8 passes through the second connecting frame 2, and the other end is fixedly connected to the fixing nut 9 pre-placed inside the first connecting frame 1 through thread engagement, further restricting the relative displacement between the first connecting frame 1 and the second connecting frame 2 and enhancing their connection strength. Next, align the corresponding positions on the lower corner bracket 10 and upper corner bracket 11 with the limiting block 13, so that the limiting block 13 passes through the limiting groove 14 on the first connecting frame 1 and the second connecting frame 2. Utilizing the slot in the limiting groove 14 that only allows the limiting block 13 to pass through at a certain angle, simply twisting the limiting block 13 to change its state can prevent it from falling off, thus achieving quick fixation of the lower corner bracket 10 and upper corner bracket 11 to the first connecting frame 1 and the second connecting frame 2. Since the lower corner bracket 10 and upper corner bracket 11 have an L-shaped structure, during installation, it is necessary to ensure that their two right-angled sides are tightly fitted with the inner sides of the horizontal bar 3 and the vertical bar 4, respectively. At the same time, an anti-slip washer is set on the side where the limiting block 13 fits with the limiting groove 14 to improve the reliability of the connection. Finally, install the connecting bolts 16 at the corresponding positions on the horizontal bar 3 and the vertical bar 4, tighten the bolts, and complete the connection between the entire aluminum alloy door frame corner connection structure and the horizontal and vertical frames, thus completing the assembly of the door frame structure.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A corner connection structure for an aluminum alloy door frame, comprising: The horizontal bar (3) and the vertical bar (4) are characterized in that: The first connecting frame (1) is movably positioned between the horizontal bar (3) and the vertical bar (4), and is movably connected to the vertical bar (4) of the same size on one side. The connector is fixedly installed at one end of the horizontal bar (3) and the vertical bar (4), and is detachably connected to the first connecting frame (1) and the second connecting frame (2); The first fixing member is fixedly disposed on the side of the first connecting frame (1) and the second connecting frame (2); The second fastener is fixedly installed on the upper and lower sides of the first connecting frame (1) and the second connecting frame (2).

2. The aluminum alloy door frame corner connection structure according to claim 1, characterized in that, The connector includes: The limiting stud (5) is fixedly connected to one side of the horizontal bar (3) and the vertical bar (4), respectively. It passes through the limiting holes (6) at both ends of the first connecting frame (1) and the second connecting frame (2) and extends inward. One end of it is connected to the limiting nut (15) by a thread to limit the displacement of the limiting stud (5) in the horizontal direction.

3. The aluminum alloy door frame corner connection structure according to claim 1, characterized in that, The first fastener includes: The fixing stud (8) is longitudinally disposed in the through hole (7) on the limiting stud (5). One end of the stud passes through the second connecting frame (2), and the other end is fixedly connected to the fixing nut (9) disposed inside the first connecting frame (1) by thread engagement, so as to limit the relative displacement between the first connecting frame (1) and the second connecting frame (2).

4. The aluminum alloy door frame corner connection structure according to claim 1, characterized in that, The second fastener includes: The lower corner bracket (10) is fixedly installed at the bottom of the first connecting bracket (1) and the second connecting bracket (2); The upper corner bracket (11) is fixedly installed at the upper end of the first connecting bracket (1) and the second connecting bracket (2); The lower corner frame (10) and the upper corner frame (11) are both fixedly connected to the first connecting frame (1) and the second connecting frame (2) via quick-connect fittings.

5. The aluminum alloy door frame corner connection structure according to claim 4, characterized in that, The quick-connect component includes: Connecting columns (12) are fixedly connected to the sides of the first connecting frame (1) and the second connecting frame (2), and multiple sets are evenly arranged. The limiting block (13) is rotatably connected to one side of the connecting column (12) and passes through the limiting groove (14) provided on the first connecting frame (1) and the second connecting frame (2); The limiting groove (14) is provided with a slot that allows only the limiting block (13) to pass through, which is used to limit the detachment of the limiting groove (14).

6. The aluminum alloy door frame corner connection structure according to claim 4, characterized in that: The lower corner bracket (10) and upper corner bracket (11) are both made of high-strength aluminum alloy in one piece and have an L-shaped structure. Their two right-angled sides are respectively attached to the inner side of the horizontal bar (3) and the vertical bar (4).

7. The aluminum alloy door frame corner connection structure according to claim 5, characterized in that: An anti-slip pad is provided on the side of the limiting block (13) that is in contact with the limiting groove (14).

8. The aluminum alloy door frame corner connection structure according to claim 1, characterized in that: The horizontal bar (3) and the vertical bar (4) are provided with connecting bolts (16) to connect the horizontal frame and the vertical frame.

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