An inner angle fastener for fixing profiles

Abstract

The present invention discloses an inner corner fastener for fixing a profile, comprising a supporting part, a structural reinforcement part, and a plate mounting part connecting the supporting part and the structural reinforcement part; the supporting part is provided with an end through hole and a fitting surface, each fitting surface is provided with a positioning protrusion with a predetermined outer contour size, and the structural reinforcement part is provided with a bolt hole deviating from the rotation center point of the structural reinforcement part. Compared with the prior art, the structure of the present invention is scientific and reasonable, can achieve multi-functionality in use, and is low-cost and easy to implement. The specific characteristics are: 1. The fastener has a structure for pre-positioning the profile, the position of the profile is not easy to move during the installation process, and the profile is in the same plane after fastening; 2. The present invention has the purpose of simultaneously installing the profile and the plate, and can simultaneously meet the fastening of the profile and the assembly and disassembly of the plate; 3. The present invention can install plates of different thicknesses according to the use occasion, and has a wide range of use and is flexible; 4. The plate is easy to disassemble, saving time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of fasteners, in particular to an inner angle fastener for fixing profiles. Background Art

[0002] Industrial aluminum profiles are widely used in our lives. In actual applications, they can be used to build frames, workbenches, cleaning sheds and other products as needed. The connection methods usually used are built-in and external connections, without welding. Among them, the fasteners used as accessories have various structural forms and different functions. For built-in connections, the fasteners used to connect two aluminum profiles vertically, in addition to corresponding to the specifications and dimensions of the adapted industrial aluminum profiles, the design and rationality of the overall structure directly affect the rigidity and structural stability of the connection between the aluminum profiles. In terms of actual needs, when the connected structure needs to be frequently disassembled or reassembled, the scalability and flexibility of the fasteners are obviously more important than high load-bearing capacity or lower processing requirements.

[0003] The problems of the fasteners of this type of structure in the past are: 1. When fastened, the position is prone to shifting due to force; 2. It cannot be used for both assembly and disassembly of the plate, and the hole position of the structure hole is not ideal; 3. The installation of the plate of the fasteners in the past needs to be installed in the groove of the aluminum profile, which makes it inconvenient to disassemble. The above problems still need to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide an inner corner fastener for fixing profiles, which is innovatively improved in structure and structure composition to solve the problems of unsatisfactory scalability and flexibility of similar fasteners in the past and inconvenient disassembly of plates.

[0005] To achieve the above purpose, the technical solution provided by the present invention is: an inner angle fastener for fixing profiles, comprising two support parts connected end to end to form an angle, a structural reinforcement part connecting the two support parts, and a plate mounting part connecting the two support parts and the structural reinforcement part, both support parts are provided with end through holes, the outer surface of the support part is provided with a fitting surface, each fitting surface is provided with at least one positioning protrusion of a predetermined outer contour size, the positioning protrusion is extended from the fitting surface to the outside of the fitting surface, the structural reinforcement part is provided with a bolt hole deviating from the rotation center point of the structural reinforcement part, and a convex top, the top is arranged to avoid the hole position of the end through hole. .

[0006] As a further elaboration of the present invention:

[0007] In the above technical solution, the support parts are all arranged with the same structure, corresponding to the first support part and the second support part, and the fitting surfaces of the first support part and the second support part are connected to each other at a right angle.

[0008] In the above technical solution, a middle arc surface is arranged between the two bonding surfaces, and the middle arc surface is formed at the intersection of the two bonding surfaces.

[0009] In the above technical solution, the positioning protrusion is in a cubic shape, and one positioning protrusion is arranged on each of the fitting surfaces. The length dimension of the cross section of the positioning protrusion is smaller than the width dimension of the corresponding aluminum profile groove rail.

[0010] In the above technical solution, the plate mounting portion is formed on one side edge corresponding to the two supporting portions and covers one side edge of the structural reinforcement portion. The plate mounting portion is provided with a bevel, and the top end position of the structural reinforcement portion is lower than the bevel.

[0011] As a preferred technical solution of the present invention, the end through hole includes an outer surface port, an inner surface port, a vertical hole and an inclined hole wall portion. The outer contour of the outer surface port is an oblong, the inner surface port is a circular mouth, and the inclined hole wall portion corresponds to the outer surface port and the circumference of the circular mouth, and is connected to the vertical hole.

[0012] As another preferred technical solution of the present invention, the intersection of the two bonding surfaces is at a right angle.

[0013] In the above technical solution, the number of the positioning protrusions is four, and each of the fitting surfaces is provided with two symmetrically arranged positioning protrusions.

[0014] In the above technical solution, an inner corner fastener for fixing a profile of the present invention further includes a groove structure, and the groove structure is formed correspondingly at the periphery of the end of the positioning protrusion.

[0015] The beneficial effects of the present invention are as follows: the present invention is used for connecting and fastening aluminum profiles of matching specifications, and is connected and fastened by screw rod assemblies without pre-drilling, thereby realizing vertical connection between aluminum profiles, which is a built-in connection method. Among them, the support part is a connecting and fixing part, which is provided with an end through hole. The support part is used to provide the mechanical strength of the connection and limit the mutual perpendicularity of the two aluminum profiles after installation; a structural reinforcement part is provided to enhance the overall rigidity and strength, which is conducive to achieving excellent bearing capacity under stress; the structural reinforcement part is provided with bolt holes deviating from the rotation center point of the structural reinforcement part, and the distances between the bolt holes and the sides of the two support parts are more reasonable. When installing plates of different thicknesses on both sides of the present invention at the same time through the bolt holes, the plates are used to be flush with the outer plane of the profile after installation, corresponding to the purpose of reducing assembly errors. The plates are drilled and installed on the side of the present invention (the drilling position of the plates corresponds to the position connected to the plate installation part), and the edges of the plates are relatively parallel to the corresponding sides of the two aluminum profiles, which effectively reduces assembly errors and facilitates assembly; a positioning protrusion is provided to be inserted into the groove rail of the aluminum profile, and it is not easy to have position stringing when tightened under stress, which is a practical design. The present invention is an alloy part with a small size and a reasonable structure. It provides sufficient mechanical strength in connection and fastening while facilitating the installation of the plate, thus solving the problem that the plate needs to be installed in an aluminum profile groove and the overall frame needs to be disassembled when the plate is removed.

[0016] Compared with the previous technology, the present invention has the advantages of simple structure, reliability, low cost and easy implementation. It is also easy to use and can provide scalability and flexibility when used. It provides easy installation, firm and stable installation, and easy disassembly and assembly in the installation and fastening of industrial aluminum profiles and supporting plates, which is conducive to wide promotion and application.

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 It is a perspective structural schematic diagram of the present invention as a whole.

[0020] Figure 2 yes Figure 1 A side perspective diagram of the structure.

[0021] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part A in the figure.

[0022] Figure 4It is another overall structural schematic diagram of the present invention.

[0023] Figure 5 yes Figure 4 Schematic diagram of the side structure.

[0024] Figure 6 yes Figure 4 Schematic diagram of the structure of the positioning protrusion and groove structure.

[0025] Description of each mark in the figure:

[0026] 1. Internal angle fastener for fixing profile; 11. First supporting part; 12. Second supporting part; 13. Structural reinforcement part; 14. Plate mounting part; 15. End through hole; 16. Fitting surface; 17. Positioning protrusion; 130. Bolt hole; 18. Middle arc surface; 150. Outer surface port; 151. Inner surface port; 152. Vertical hole; 153. Inclined hole wall part; 100. Groove structure. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention, but the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0028] Specifically, the present invention proposes the following specific embodiments:

[0029] Embodiment 1:

[0030] refer to Figures 1 to 3The embodiment provides an inner angle fastener 1 for fixing a profile, comprising two supporting parts connected end to end to form an angle, a structural reinforcement part 13 connecting the two supporting parts, and a plate mounting part 14 connecting the two supporting parts and the structural reinforcement part 13. Both supporting parts are provided with end through holes 15. The outer surface of the supporting part is provided with a fitting surface 16. Each fitting surface 16 is provided with at least one positioning protrusion 17 of a predetermined outer contour size. The positioning protrusion 17 is extended from the fitting surface 16 to the outside of the fitting surface 16. The structural reinforcement part 13 is provided with a bolt hole 130 deviating from the rotation center point of the structural reinforcement part 13, and a convex top, and the top is arranged to avoid the hole position of the end through hole 15. The present invention is used for connecting and fastening aluminum profiles of matching specifications. It is connected and fastened by a screw assembly without pre-drilling, and the vertical connection between aluminum profiles is realized, which is a built-in connection method. The support part is a connecting and fixing part, and is provided with an end through hole 15. The support part is used to provide the mechanical strength of the connection and limit the mutual verticality of the two aluminum profiles after installation; a structural reinforcement part 13 is provided to strengthen the overall rigidity and strength, which is conducive to achieving excellent bearing capacity under stress; the structural reinforcement part 13 is provided with a bolt hole 130 deviating from the rotation center point of the structural reinforcement part 13, and the distance between the bolt hole 130 and the side of the two support parts is more reasonable. When the plates of different thicknesses are installed on both sides of the present invention at the same time through the bolt hole 130, the plate is used to be flush with the outer plane of the profile after installation, so as to achieve the purpose of correspondingly reducing the assembly error. In actual applications, when the plates are installed at the same time, the plate is drilled and installed on the side of the present invention (the plate drilling position corresponds to the position connected to the plate installation part), and the edge of the plate is relatively parallel to the corresponding side of the two aluminum profiles, which effectively reduces the assembly error and facilitates assembly; a positioning protrusion 17 is provided to be inserted into the groove rail of the aluminum profile, and it is not easy to have position stringing when tightening under stress, which is a practical design. The present invention is an alloy part with a small size and reasonable structure. It provides sufficient mechanical strength in connection and fastening while facilitating the installation of the plate, thus solving the problem that the plate needs to be installed in an aluminum profile groove and the whole frame needs to be disassembled when the plate is removed.

[0031] As a further elaboration of the present invention:

[0032] According to the above technical solution, the support parts of this embodiment have the same structure, corresponding to the first support part 11 and the second support part 12, and the fitting surfaces 16 of the first support part 11 and the second support part 12 are connected to each other at right angles.

[0033] Furthermore, a middle arc surface is provided between the two mating surfaces 16, and the middle arc surface 18 is formed at the intersection of the two mating surfaces 16; during production, the middle arc surface 18 is dug out from the intersection of the two mating surfaces 16, and the intersection of the symmetrical two side edges of the two support parts is still set at a right angle. This design is conducive to material saving during production and does not affect the overall mechanical strength.

[0034] According to the above technical solution, the positioning protrusion 17 of this embodiment is in a cubic shape, and one positioning protrusion 17 is provided on each of the bonding surfaces 16. Specifically, the length dimension of the cross section of the positioning protrusion 17 is smaller than the width dimension of the corresponding aluminum profile groove. The positioning protrusion 17 is not vertically arranged with respect to the bonding surface 16.

[0035] According to the above technical solution, the plate mounting portion 14 is formed on one side of the two supporting portions and covers one side of the structural reinforcement portion 13. The plate mounting portion 14 is provided with a bevel, and the overall outer contour shape is similar to a triangle. The top position of the structural reinforcement portion 13 is lower than the bevel. The top position height of the structural reinforcement portion 13 is set to facilitate the insertion of the screw or the screw into the end through hole 15, without blocking the end through hole 15, and the structure is reasonable.

[0036] As a preferred technical solution of this embodiment, the end through hole 15 includes an outer surface port 150, an inner surface port 151, a vertical hole 152 and an inclined hole wall portion 153. The outer contour of the outer surface port 150 is an oblong shape, the inner surface port 151 is a round mouth, one end of the inclined hole wall portion 153 corresponds to the position of one half of the circumference of the outer surface port 150, and the other end is connected to the circumference of the round mouth, and the inclined hole wall portion 153 is connected to the vertical hole setting at the same time. The end through hole 15 is a special-shaped hole design, which is used to meet the connection and fastening of plates with non-matching thickness specifications. It provides scalability and flexibility during use.

[0037] Embodiment 2:

[0038] refer to Figures 4 to 6 , is another inner angle fastener 1 for fixing profiles. The structural form of the positioning protrusion 17 is basically the same as that of the first embodiment, but the number and setting relationship are different, and the structure of the end through hole 15 is different, which is a vertical hole. As another preferred technical solution of this embodiment, the intersection of the two fitting surfaces 16 is at a right angle. This structure is easy to implement, meets lower processing requirements, and has a low overall cost of ownership.

[0039] According to the above technical solution, the number of positioning protrusions 17 in this embodiment is four, and two symmetrically arranged positioning protrusions 17 are arranged on each fitting surface 16, and the positioning protrusions 17 are arranged perpendicular to the fitting surface 16. When in use, it is used to be inserted into the groove rail of the aluminum profile, and it is not easy to cause position shifting when tightening and applying force; when the connecting surface is a flat surface without a groove rail, the positioning protrusions 17 are knocked off to adapt to the use requirements.

[0040] The inner corner fastener 1 for fixing a profile in this embodiment further includes a groove structure 100 , and the groove structure 100 is formed correspondingly at the periphery of the end of the positioning protrusion 17 .

[0041] Compared with the prior art, the present invention solves the following problems: 1. The existing fasteners have no positioning structure. During the operation of fastening the aluminum profile, the relative position of the two connected aluminum profiles is misaligned, and the two connected aluminum profiles are not in the same plane after fastening; 2. Two fasteners with different structures are required to connect the aluminum profile and the matching plate. The two fasteners can only be used separately and cannot meet the installation of the aluminum profile and the matching plate at the same time. In addition, the entire disassembly and assembly process is inconvenient to operate and prone to large assembly errors; 3. The hole positions and structural design of the holes in the overall structure are not ideal. First, the matching plate can only be installed in the groove rail of the aluminum profile, or the plate can only be installed through a special adapter. The installation During the operation, many types of connectors / adapters need to be equipped, the fastening operation is inconvenient, assembly errors are prone to occur, and the workers' skilled skills are highly dependent; secondly, the fasteners can only install plates of one thickness due to their own hole structure. In addition, in previous structures, the distance between the hole position and the side of the aluminum profile is not reasonable enough. In the actual installation process, it is easy to cause the side of the plate to conflict with the side of the aluminum profile, which produces a large squeezing pressure on the plate, resulting in tearing at the opening position of the plate, resulting in the scrapping of the plate; 4. Corresponding to the above-mentioned problem point 3, when the plate is installed in the groove of the aluminum profile, the subsequent maintenance equipment needs to gradually disassemble the aluminum profile frame to remove the plate that needs maintenance. The maintenance and disassembly process is time-consuming and labor-intensive, and the labor cost is high.

[0042] The present invention has the advantages of simple structure, reliability, low cost and easy implementation. It is also easy to use and can provide scalability and flexibility when used. It is easy to install, firm and stable, and easy to disassemble and assemble in the installation and fastening of industrial aluminum profiles and matching plates, which is conducive to wide promotion and application.

[0043] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An inner angle fastener for fixing a profile, characterized in that: It comprises two supporting parts connected end to end to form an angle, a structural reinforcement part connecting the two supporting parts, and a plate mounting part connecting the two supporting parts and the structural reinforcement part, the two supporting parts are both provided with end through holes, the outer surface of the supporting part is provided with a fitting surface, each fitting surface is provided with at least one positioning protrusion, the positioning protrusion is extended from the fitting surface to the outside of the fitting surface, the structural reinforcement part is provided with a bolt hole deviating from the rotation center point of the structural reinforcement part, and a convex top, the top is arranged to avoid the hole position of the end through hole; The support parts are all arranged in the same structure, corresponding to the first support part and the second support part, and the intersection position of the fitting surfaces of the first support part and the second support part is at a right angle; A middle arc surface is provided between the two mating surfaces, and the middle arc surface is formed at the intersection of the two mating surfaces. During production, the middle arc surface is dug out from the intersection of the two mating surfaces, and the intersection of the symmetrical two side edges of the two support parts is still set at a right angle; The positioning protrusion is in a cubic shape, and one positioning protrusion is arranged on each of the abutting surfaces, and the length dimension of the cross section of the positioning protrusion is smaller than the width dimension of the corresponding aluminum profile groove rail; The plate mounting portion is formed on one side of the two supporting portions corresponding to each other and covers one side of the structural reinforcement portion. The plate mounting portion is provided with a bevel, and the top end of the structural reinforcement portion is located lower than the bevel. The end through hole includes an outer surface port, an inner surface port, a vertical hole and an inclined hole wall portion. The outer contour of the outer surface port is an oblong shape, the inner surface port is a circular mouth, and the inclined hole wall portion corresponds to the outer surface port and the circumference of the circular mouth, and is connected to the vertical hole.

2. The inner corner fastener for fixing a profile according to claim 1, characterized in that: The number of the positioning protrusions is four, and each of the fitting surfaces is provided with two symmetrically arranged positioning protrusions.

3. The inner corner fastener for fixing a profile according to claim 1, characterized in that: It also includes a groove structure, which is formed correspondingly at the periphery of the end of the positioning protrusion.

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