A connecting structure of an aluminum alloy door and window aluminum profile

Abstract

The utility model relates to aluminium alloy door and window section bar technical field, concretely relates to a kind of connecting structure of aluminium alloy door and window aluminium section bar, including two section bar units, and the end of two section bar units is connected by hinge assembly;Hinge assembly includes upper fixed block, lower fixed block, limit rod, bracket and chucking bolt;Upper fixed block both sides are symmetrically provided with sliding hole, limit rod slidingly penetrates sliding hole, and limit rod one end is fixedly connected with bracket;Bracket is slidably connected with lower fixed block, and lower fixed block surface is equipped with the lower chucking hole that penetrates, chucking bolt is screw-connected in lower chucking hole, and chucking bolt end abuts on upper fixed block;By rotating chucking bolt and rotating in upper chucking hole, drive upper fixed block and slide along limit rod, drive the end surface of two section bar units to each other to eliminate joint, chucking bolt is rotated to drive upper and lower fixed block relative movement, without relying on external strong extrusion, significantly reduce the manpower demand when assembling, simplify operation procedure.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy door and window profile technology, specifically, to a connection structure for aluminum alloy door and window profiles. Background Technology

[0002] As a widely used building material in modern architecture, the stability and sealing of aluminum alloy doors and windows directly affect their overall performance and service life.

[0003] Traditional aluminum alloy profile connections often use angle brackets and bolts for fastening. During assembly, the end faces of two profile units need to be aligned, then pressed together tightly by external force before the angle brackets are inserted into the profile cavity for fixation. However, this method has significant drawbacks: First, it requires extremely high precision in the machining of the profile unit end faces; even slight deformation or dimensional deviations require considerable external force to eliminate the seam, making the process time-consuming and labor-intensive. Second, after the angle brackets are installed, it is difficult to fine-tune the gaps between the profiles, easily leading to insufficient sealing of doors and windows. Furthermore, long-term use may result in loose connections and widening gaps, affecting structural stability.

[0004] Therefore, there is an urgent need for a connection structure for aluminum alloy door and window profiles to improve the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this utility model is to provide a connection structure for aluminum alloy door and window profiles. By rotating the clamping bolts, the upper and lower fixing blocks can be moved relative to each other, eliminating the need for external force compression, significantly reducing the manpower required during assembly, and simplifying the operation process. During adjustment, the sliding cooperation between the limiting rod and the bracket ensures that the profile units move smoothly together, avoiding profile deformation caused by uneven force, and improving installation efficiency and accuracy, thereby solving the problems mentioned in the background art, namely:

[0006] Traditional aluminum alloy profile connections often use angle brackets and bolts for fastening. The processing accuracy of the profile unit end face is extremely high. If there is slight deformation or dimensional deviation, a great deal of external force is required to eliminate the seam, which is time-consuming and labor-intensive.

[0007] To achieve the above objectives, this utility model provides a connection structure for aluminum alloy door and window profiles, comprising two profile units, the ends of which are connected by a hinge assembly.

[0008] The hinge assembly includes an upper fixing block, a lower fixing block, a limiting rod, a bracket, and a clamping bolt;

[0009] The upper fixing block is provided with sliding holes symmetrically on both sides, the limiting rod slides through the sliding holes, and one end of the limiting rod is fixedly connected to the bracket;

[0010] The bracket is slidably connected to the lower fixing block. The surface of the lower fixing block is provided with a through lower clamping hole. The clamping bolt is threaded into the lower clamping hole, and the end of the clamping bolt abuts against the upper fixing block.

[0011] By rotating the clamping bolt along the upper clamping hole, the upper fixing block is driven to slide along the limiting rod, causing the end faces of the two profile units to move closer to each other to eliminate the seam.

[0012] In the above technical solution, by rotating the clamping bolt, the axial thrust generated by its engagement with the thread of the lower clamping hole is used to push the upper fixed block to slide along the limiting rod towards the lower fixed block; at the same time, the sliding connection between the bracket and the lower fixed block guides the end face of the profile unit to move synchronously, so that the joint between the two profile units gradually narrows until they fit tightly. During the process, the limiting rod constrains the sliding trajectory, the stop cap prevents it from falling out, and the thread self-locking characteristic maintains the stable state after adjustment, thereby actively eliminating gaps caused by processing errors or assembly deviations, and achieving a high-precision sealing connection without external pressure.

[0013] Based on this, the upper fixing block is independently locked to the inner cavity of the profile unit by bolts through fixing hole one and the lower fixing block is locked through fixing hole two, forming a split fixing structure. This design allows the hinge assembly and the profile unit to be pre-fixed by bolts during assembly, without relying on the high-precision fit of the profile end face, and the flexibility of bolt connection compensates for processing errors.

[0014] In another technical solution, the sliding connection direction between the bracket and the lower fixed block is perpendicular to the sliding direction of the limiting rod, forming a bidirectional limiting structure. One end of the limiting rod is provided with a stop cap, the diameter of which is larger than the diameter of the sliding hole. The inner walls of the sliding holes on both sides of the upper fixed block and the surface of the limiting rod are coated with a low-friction coating to reduce sliding friction resistance.

[0015] Furthermore, the inner walls of the sliding holes on both sides of the upper fixing block and the surface of the limiting rod are coated with a low-friction coating, which is a polytetrafluoroethylene coating, used to reduce sliding friction resistance.

[0016] In this technical solution, the sliding direction of the bracket and the lower fixed block is perpendicular to the sliding direction of the limiting rod, forming a bidirectional orthogonal limiting structure. By constraining the movement directions of the two degrees of freedom, it ensures that the end face of the profile unit moves smoothly along the preset path during the adjustment process, avoiding deviation or torsion. The stop cap at one end of the limiting rod matches the size of the sliding hole to prevent the component from coming off due to over-travel during adjustment. At the same time, the low-friction coating on the inner wall of the sliding hole and the surface of the limiting rod significantly reduces the sliding friction resistance, so that the rotational driving force of the clamping bolt is efficiently converted into the linear displacement of the profile end face. This not only improves the smoothness of adjustment but also reduces the risk of loosening during long-term use due to frictional wear, ultimately achieving high-precision, low-resistance active gap compensation.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The connection structure of this aluminum alloy door and window profile allows the upper and lower fixing blocks to move relative to each other simply by rotating the clamping bolts. This eliminates the need for external force compression, significantly reducing manpower requirements during assembly and simplifying the process. During adjustment, the sliding engagement between the limit rod and the bracket ensures the profile units move smoothly together, preventing deformation due to uneven stress and improving installation efficiency and precision.

[0019] The threaded transmission mechanism of the clamping bolts enables micron-level fine adjustment of the joints between profile units, effectively eliminating tiny gaps caused by processing errors or installation deviations, ensuring a tight fit between the connection ends, thereby significantly improving the overall sealing, sound insulation, and heat insulation performance of doors and windows.

[0020] The upper and lower fixing blocks are independently fixed to the profile unit by bolts, which facilitates disassembly and replacement or later maintenance. The modular design of the hinge assembly can be adapted to aluminum alloy profiles of different specifications, which expands the applicability of the connection structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0022] Figure 2 This is a schematic diagram of the hinge assembly structure in an embodiment;

[0023] Figure 3 This is a schematic diagram of the upper fixing block structure in an embodiment;

[0024] Figure 4 This is a schematic diagram of the lower fixing block structure in an embodiment.

[0025] The meanings of the labels in the diagram are as follows:

[0026] 100. Profile Unit;

[0027] 200. Hinge assembly; 210. Upper fixing block; 211. Fixing hole one; 212. Limiting rod; 213. Stop cap; 214. Upper clamping hole; 220. Lower fixing block; 221. Fixing hole two; 222. Lower clamping hole; 223. Bracket; 230. Clamping bolt. Detailed Implementation

[0028] 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.

[0029] Currently, traditional aluminum alloy profile connections mostly use angle brackets and bolts for fastening. The machining precision requirements for the 100mm end face of the profile unit are extremely high. Even slight deformation or dimensional deviations require significant external force to eliminate the joint, making the process time-consuming and labor-intensive. Please refer to [link / reference needed]. Figures 1-4 As shown, this embodiment provides a connection structure for aluminum alloy door and window profiles, including two profile units 100, the ends of which are connected by a hinge assembly 200.

[0030] The hinge assembly 200 includes an upper fixing block 210, a lower fixing block 220, a limiting rod 212, a bracket 223, and a clamping bolt 230;

[0031] The upper fixing block 210 has symmetrical sliding holes on both sides, the limiting rod 212 slides through the sliding holes, and one end of the limiting rod 212 is fixedly connected to the bracket 223;

[0032] The bracket 223 is slidably connected to the lower fixing block 220. The surface of the lower fixing block 220 is provided with a through lower clamping hole 222. The clamping bolt 230 is threaded into the lower clamping hole 222, and the end of the clamping bolt 230 abuts against the upper fixing block 210.

[0033] By rotating the clamping bolt 230 along the upper clamping hole 214, the upper fixing block 210 is driven to slide along the limiting rod 212, causing the end faces of the two profile units 100 to move closer to each other to eliminate the seam.

[0034] During implementation, by rotating the clamping bolt 230, the axial thrust generated by its thread engagement with the lower clamping hole 222 is used to push the upper fixing block 210 to slide along the limiting rod 212 towards the lower fixing block 220. At the same time, the sliding connection between the bracket 223 and the lower fixing block 220 guides the end face of the profile unit 100 to move synchronously, so that the joint between the two profile units 100 gradually narrows until they fit tightly. During the process, the limiting rod 212 constrains the sliding trajectory, the stop cap 213 prevents it from falling out, and the thread self-locking characteristic maintains the stable state after adjustment, thereby actively eliminating gaps caused by processing errors or assembly deviations, and achieving a high-precision sealing connection without external pressure.

[0035] See Figure 2As shown, the hinge assembly 200, through the separate bolt fixing of the upper fixing block 210 and the lower fixing block 220, the guiding constraint of the limiting rod 212 and the sliding hole, the sliding fit of the bracket 223 and the lower fixing block 220, and the thread transmission mechanism of the clamping bolt 230, transforms the rotational torque into a linear adjustment force, driving the two profile units 100 to smoothly approach along a preset trajectory, actively eliminating the joints caused by end face machining errors or assembly deviations. At the same time, the self-locking thread and the limiting structure maintain the tight state after adjustment, achieving a high-precision, low-resistance sealing connection without external force compression, significantly reducing the dependence on the profile machining accuracy.

[0036] Figure 3 In the middle, the diameter of the stop cap 213 at one end of the limiting rod 212 is larger than the diameter of the sliding hole. During the adjustment process, it restricts the sliding stroke of the limiting rod 212 and prevents it from coming out of the sliding hole, thus ensuring structural stability. The low-friction coating on the inner wall of the sliding hole of the upper fixing block 210 and the surface of the limiting rod 212 work together to significantly reduce the frictional resistance of the sliding contact surface. This allows the rotational driving force of the clamping bolt 230 to be efficiently converted into the linear displacement of the profile unit 100, avoiding adjustment jamming or local wear caused by excessive friction. Thus, smooth and precise joint adjustment can be achieved without applying external force.

[0037] Additionally, see Figure 4 As shown, the hinge assembly 200 and the profile unit 100 are independently fixed by the bolt locking structure of the fixing hole 221 of the lower fixing block 220, which compensates for processing errors and ensures the connection rigidity when the adjustment force is applied. The thread transmission mechanism of the clamping bolt 230 converts the rotational motion into linear fine adjustment force, and actively eliminates assembly deviation by gradually reducing the joint. The three work together to form a high-precision, low-resistance dynamic adjustment system, replacing the passive connection method of the traditional corner code that relies on high-precision processing and external force extrusion.

[0038] In this embodiment, the connection structure of aluminum alloy door and window profiles, when in practical use, firstly achieves active adjustment and sealing of the joints of the profile unit 100 through the synergistic action of the hinge assembly 200. When the clamping bolt 230 is rotated, its thread engagement with the lower clamping hole 222 generates axial thrust, pushing the upper fixing block 210 to slide along the limiting rod 212 towards the lower fixing block 220; simultaneously, the sliding connection direction of the bracket 223 and the lower fixing block 220 is perpendicular to the sliding direction of the limiting rod 212, forming a bidirectional limiting structure, constraining the end face of the profile unit 100 to only smoothly translate along a preset path, avoiding offset or torsion. The stop cap 213 at the end of the limiting rod 212 prevents the assembly from coming off, and the upper fixing block 210 and the lower fixing block 220 are separately locked in the inner cavity of the profile unit 100 through bolts in fixing hole one 211 and fixing hole two 221, which both compensates for processing errors and ensures the stability of the force during the adjustment process.

[0039] The low-friction coating on the inner wall of the sliding hole and the surface of the limiting rod 212 significantly reduces sliding resistance, efficiently converting the rotational driving force of the clamping bolt 230 into linear displacement of the profile end face. Combined with the fine adjustment function of the threaded drive, it achieves gradual reduction and precise sealing of the joint. The self-locking characteristics of the thread and the bidirectional limiting structure work together to maintain the tight state after adjustment, resisting loosening caused by vibration or temperature changes over a long period of time. This completely solves the defects of traditional corner brackets that rely on high-precision machining and cannot dynamically compensate for gaps, achieving efficient and reliable door and window connections.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A connecting structure of aluminum alloy door and window aluminum profile, comprising two profile units (100), characterized in that: The end of the two profile units (100) is connected by a hinge assembly (200); The hinge assembly (200) comprises an upper fixed block (210), a lower fixed block (220), a limiting rod (212), a bracket (223) and a clamping bolt (230); The upper fixed block (210) is symmetrically provided with sliding holes on both sides, the limiting rod (212) is slidably penetrated through the sliding holes, and one end of the limiting rod (212) is fixedly connected with the bracket (223); The bracket (223) is slidably connected with the lower fixed block (220), the lower fixed block (220) is provided with a lower clamping hole (222) penetrating through the surface, the clamping bolt (230) is threadedly connected in the lower clamping hole (222), and the end of the clamping bolt (230) abuts against the upper fixed block (210); By rotating the clamping bolt (230) along the upper clamping hole (214), the upper fixed block (210) is driven to slide along the limiting rod (212), and the end faces of the two profile units (100) are driven to approach each other to eliminate the joint.

2. The connecting structure of aluminum alloy door and window aluminum profile according to claim 1, characterized in that: The upper fixed block (210) is provided with a fixed hole one (211) on the surface, and a bolt is penetrated in the fixed hole one (211) to lock the upper fixed block (210) in the inner cavity of the profile unit (100).

3. The connecting structure of aluminum alloy door and window aluminum section according to claim 1, characterized in that: The lower fixed block (220) is provided with a fixed hole two (221) on the surface, and a bolt is penetrated in the fixed hole two (221) to lock the lower fixed block (220) in the inner cavity of the profile unit (100).

4. The connecting structure of aluminum alloy door and window aluminum section according to claim 1, characterized in that: The sliding connection direction of the bracket (223) and the lower fixed block (220) is perpendicular to the sliding direction of the limiting rod (212), forming a bidirectional limiting structure.

5. The connecting structure of aluminum alloy door and window aluminum section according to claim 1, characterized in that: The clamping bolt (230) is provided with a fine adjustment function, and the joint of the two profile units (100) is gradually reduced by rotating the clamping bolt (230).

6. The connecting structure of aluminum alloy door and window aluminum section according to claim 1, characterized in that: One end of the limiting rod (212) is provided with a cap (213), and the diameter of the cap (213) is greater than the hole diameter of the sliding hole.

7. The connecting structure of aluminum alloy door and window aluminum section according to claim 1, characterized in that: The inner wall of the sliding hole on both sides of the upper fixed block (210) and the surface of the limiting rod (212) are coated with a low-friction coating, and the low-friction coating is a polytetrafluoroethylene coating, which is used to reduce the sliding friction resistance.

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