Self-locking spliced aluminum profile

Abstract

The utility model relates to a kind of self-locking spliced aluminium profiles in aluminium profile field, including long strip profile main body, the end face of profile main body is provided with self-locking connecting piece, profile main body between adjacent is spliced and extended by self-locking connecting piece, self-locking connecting piece includes fixed base and two connecting studs, two connecting studs are symmetrically set in the both ends of fixed base, connecting stud is slidably connected with fixed base, connecting stud can be axially translated relative to fixed base, connecting stud and fixed base are provided with elastic tension member between, elastic tension member provides a sustained tension for connecting stud, so that connecting stud is in contact with fixed base in normal state, the end face of profile main body is provided with the screw sleeve matched with connecting stud, the end face positioning groove of profile main body, the shape of positioning groove and fixed base is matched, fixed base can be matched and inserted into positioning groove, greatly simplify operation step, significantly improve splicing efficiency, profile main body surface is smooth after splicing without protrusion.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profiles, and in particular to a self-locking splicing aluminum profile. Background Technology

[0002] Aluminum profiles are widely used in building doors and windows, curtain walls, interior decoration, machinery frames, and exhibitions due to their excellent properties such as light weight, high strength, corrosion resistance, ease of processing and forming, and diverse surface treatments. In these applications, it is often necessary to splice multiple aluminum profiles end-to-end to extend them to meet different length requirements.

[0003] Currently, the main method for extending aluminum profiles involves machining connecting holes at the ends of the profiles and using bolts with specialized connecting sleeves, such as corner brackets or inner bushings, for fixation. This method typically requires operation on multiple sides or even inside the profile, using bolts to secure the connecting sleeves to the profile. The process is cumbersome and complex, requiring bolts to be tightened sequentially at multiple locations, resulting in low installation efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a self-locking splicing aluminum profile, which can effectively solve the technical problems of cumbersome and complicated splicing process.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A self-locking splicing aluminum profile includes a long strip-shaped profile body. The end face of the profile body is provided with a self-locking connector. Adjacent profile bodies are spliced ​​and extended through the self-locking connector. The self-locking connector includes a fixed base and two connecting studs. The two connecting studs are symmetrically arranged at both ends of the fixed base. The connecting studs are slidably connected to the fixed base and can be axially translated relative to the fixed base. An elastic tensioning member is provided between the connecting studs and the fixed base, providing a continuous tension force to the connecting studs, ensuring that the connecting studs are in contact with the fixed base under normal conditions. The end face of the profile body is provided with a threaded sleeve that matches the connecting studs. The end face of the profile body has a positioning groove that matches the shape of the fixed base, allowing the fixed base to be inserted into the positioning groove.

[0007] Furthermore, the positioning groove and the threaded sleeve are coaxially arranged, with the threaded sleeve located on the bottom surface of the positioning groove.

[0008] Furthermore, guide sleeves are provided at both ends of the fixed base, connecting studs are sleeved on the outside of the guide sleeves, and elastic tensioning members are provided inside the guide sleeves and connected to the connecting stud sleeves.

[0009] Furthermore, the guide sleeve has a groove on its side wall, and the connecting stud sleeve has a protrusion that mates with the groove on its inner wall.

[0010] Furthermore, the end of the guide sleeve is provided with an annular limiting flange, and the inner wall of the connecting stud sleeve is provided with a corresponding limiting step. When the connecting stud is subjected to the tension of the elastic tensioning member, the limiting step abuts against the annular limiting flange.

[0011] Furthermore, the side wall of the positioning groove is provided with an anti-detachment protrusion ring, and the side wall of the fixing base is provided with an anti-detachment groove matching the anti-detachment protrusion ring.

[0012] Compared with existing technologies, the advantages of this invention are as follows: During splicing, only the end faces of the two profiles to be connected need to be aligned. The connecting stud is pulled outwards to overcome the tension of the elastic tensioning element, then screwed into the corresponding threaded sleeve on the end face of the profile and tightened. Afterwards, the connecting stud is released, and the continuous tension provided by the elastic tensioning element immediately acts on the connecting stud, pulling it back. The fixing base is then inserted into the positioning groove on the end face of the profile, effectively limiting the relative rotation between the fixing base and the profile body, achieving a reliable self-locking function. The entire process is performed only on the end face of the profile, eliminating the need for drilling holes, inserting bolts, and tightening on multiple sides, greatly simplifying the operation steps, significantly improving splicing efficiency, and resulting in a smooth, unprotruding surface after splicing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the profile in this utility model;

[0015] Figure 3 This is a schematic diagram of the self-locking connector in this utility model.

[0016] The numbers in the diagram are: 1-profile body, 2-self-locking connector, 3-fixed base, 4-connecting stud, 5-elastic tensioning component, 6-positioning groove, 7-screw sleeve, 8-guide sleeve, 9-anti-detachment protrusion ring, 10-anti-detachment groove. Detailed Implementation

[0017] 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.

[0018] The following is combined with Figures 1-3 A detailed description of a self-locking splicing aluminum profile according to this utility model is provided:

[0019] A self-locking splicing aluminum profile includes a long strip-shaped profile body 1. The end face of the profile body 1 is provided with a self-locking connector 2. Adjacent profile bodies 1 are spliced ​​and extended through the self-locking connector 2. The self-locking connector 2 includes a fixed base 3 and two connecting studs 4. The two connecting studs 4 are symmetrically arranged at both ends of the fixed base 3. The connecting studs 4 are slidably connected to the fixed base 3 and can be axially translated relative to the fixed base 3. An elastic tensioning member 5 is provided between the connecting studs 4 and the fixed base 3, providing a continuous tension force to the connecting studs 4 so that they are in contact with the fixed base 3 under normal conditions. The end face of the profile body 1 is provided with a threaded sleeve 7 that matches the connecting studs 4. The end face of the profile body 1 has a positioning groove 6, which matches the shape of the fixed base 3. The fixed base 3 can be inserted into the positioning groove 6. The cross-section of the fixed base 3 is polygonal or an irregular ellipse, and cannot be circular.

[0020] During splicing, simply align the end faces of the two profile bodies 1 to be connected, pull the connecting stud 4 outward to overcome the tension of the elastic tension member 5, screw it into the threaded sleeve 7 on the corresponding profile end face and tighten it. Then loosen the connecting stud 4; the continuous tension provided by the elastic tension member 5 will immediately act on the connecting stud 4, pulling it back. The fixing base 3 is inserted into the positioning groove 6 on the profile end face, effectively restricting the relative rotation between the fixing base 3 and the profile body 1, achieving a reliable self-locking function. The entire process is performed only on the end face of the profile, eliminating the need for drilling holes, inserting bolts, and tightening on multiple sides, greatly simplifying the operation steps and significantly improving splicing efficiency. After splicing, the surface of the profile body 1 is flat and without protrusions.

[0021] During disassembly, the two profile bodies 1 need to be pulled apart to the sides so that the fixing base 3 can be separated from the positioning groove 6 before they can be rotated and removed.

[0022] The positioning groove 6 and the screw sleeve 7 are coaxially arranged so that when the fixed base 3 is inserted into the positioning groove 6, the connecting stud 4 and the screw sleeve 7 are automatically coaxially aligned, completely eliminating the risk of thread misalignment. The screw sleeve 7 is located on the bottom surface of the positioning groove 6, and the user does not need to make additional adjustments to the alignment. Insertion completes precise positioning.

[0023] The fixed base 3 has guide sleeves 8 at both ends, and the connecting studs 4 are sleeved on the outside of the guide sleeves 8 to prevent lateral swaying and ensure accurate screwing trajectory between the studs and the sleeves 7. The guide sleeves 8 act as rigid carriers, so that the tension of the elastic tensioning member 5 is evenly applied to the connecting studs 4 along the axis. The elastic tensioning member 5 is set inside the guide sleeve 8 and connected to the connecting studs 4, isolating it from dust and oil corrosion and preventing spring corrosion failure. The side wall of the guide sleeve 8 is provided with a sliding groove, and the inner wall of the connecting studs 4 is provided with a protrusion that mates with the sliding groove. The protrusion and the sliding groove mate to form a keyway-type anti-rotation structure, forcing the connecting studs 4 to only move axially and completely locking circumferential rotation. The end of the guide sleeve 8 is provided with an annular limiting flange, and the inner wall of the connecting stud 4 is provided with a corresponding limiting step. When the connecting stud 4 is pulled by the elastic tension member 5, the limiting step abuts against the annular limiting flange. When the protrusion slides to the end of the groove, the limiting step blocks further outward pulling, thus preventing the elastic tension member 5 from overtravel and failing.

[0024] The side wall of the positioning groove 6 is provided with an anti-detachment protrusion ring 9, and the side wall of the fixed base 3 is provided with an anti-detachment groove 10 matching the anti-detachment protrusion ring 9. After the splicing is completed, the anti-detachment protrusion ring 9 is inserted into the anti-detachment groove 10 of the fixed base 3 to form a mechanical hard interlock.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A self-locking spliced aluminum section comprising a long strip-shaped section body, characterized by: The end face of the profile body is provided with a self-locking connector. Adjacent profile bodies are spliced ​​and extended through the self-locking connector. The self-locking connector includes a fixed base and two connecting studs. The two connecting studs are symmetrically arranged at both ends of the fixed base. The connecting studs are slidably connected to the fixed base. The connecting studs can be axially translated relative to the fixed base. An elastic tensioning member is provided between the connecting studs and the fixed base. The elastic tensioning member provides a continuous tension for the connecting studs, so that the connecting studs are in contact with the fixed base under normal conditions. The end face of the profile body is provided with a threaded sleeve that matches the connecting studs. The end face of the profile body has a positioning groove. The positioning groove matches the shape of the fixed base. The fixed base can be inserted into the positioning groove.

2. The self-locking spliced aluminum profile according to claim 1, characterized in that: The positioning groove and the screw sleeve are coaxially arranged, with the screw sleeve located on the bottom surface of the positioning groove.

3. The self-locking splicing aluminum profile according to claim 1, characterized in that: The fixed base is provided with guide sleeves at both ends, the connecting stud is sleeved on the outside of the guide sleeve, and the elastic tensioning member is provided inside the guide sleeve and connected to the connecting stud sleeve.

4. The self-locking splicing aluminum profile according to claim 3, characterized in that: The guide sleeve has a sliding groove on its side wall, and the connecting stud sleeve has a protrusion that mates with the sliding groove on its inner wall.

5. A self-locking splicing aluminum profile according to claim 3, characterized in that: The end of the guide sleeve is provided with an annular limiting flange, and the inner wall of the connecting stud sleeve is provided with a corresponding limiting step. When the connecting stud is subjected to the tension of the elastic tensioning member, the limiting step abuts against the annular limiting flange.

6. A self-locking splicing aluminum profile according to any one of claims 1-5, characterized in that: The side wall of the positioning groove is provided with an anti-detachment protrusion ring, and the side wall of the fixed base is provided with an anti-detachment groove that matches the anti-detachment protrusion ring.

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