Non-welded assembly structure

The weldless assembly structure addresses structural stability and assembly challenges by using 3D laser-drilled grooves and screw coupling, facilitating rapid, error-free construction and easy maintenance.

KR103041978B1Active Publication Date: 2026-11-03TAEIK METAL CO LTD
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Patent Information

Application Number
KR1020260056786
Authority / Receiving Office
KR · KR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2026-03-30
Publication Date
2026-11-03
Estimated Expiration
2046-03-30

AI Technical Summary

Technical Problem

Conventional support structures face issues with structural stability due to variable joint strength and skill-dependent welding, leading to increased costs, time, fire risks, and unsightly appearance, with difficult repairs.

Method used

A weldless assembly structure using 3D laser-drilled assembly grooves and screw coupling to connect metal frame members, eliminating on-site welding and ensuring consistent stability and rapid assembly.

Benefits of technology

Enables rapid, skill-independent assembly with reduced errors and fire risk, maintaining structural stability, allowing easy maintenance and versatile applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a weldless assembly structure and comprises a plurality of support members, the lower ends of which are connected to the ground in the longitudinal direction; a pair of upper frame members, each having lengths on both sides and having an assembly groove formed concavely in the width direction facing each other, and a connecting frame member, the longitudinal sides of which are inserted between the upper frame members to correspond to the assembly groove.
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Description

Technology Field

[0001] The present invention relates to a weldless assembly structure, and more specifically, to a weldless assembly structure capable of ensuring constructability and structural stability. Background Technology

[0002] Generally, supporting structures (building frameworks, shelves, pergolas, solar frames, etc.) form a specific structure through the organic combination of metal frames, and the connection between these metal frames has primarily relied on on-site welding.

[0003] However, conventional support structures faced difficulties in ensuring reliability regarding structural stability because the joint strength and frequency of errors varied depending on the skill level of the workers, and the welding process often required a significant amount of time, frequently leading to increased work time and costs.

[0004] In addition, conventional support structures posed a risk of fire during the welding process, and the exposed welding marks on the exterior resulted in an unattractive appearance; furthermore, partial repairs were difficult if specific areas were damaged.

[0005] A prior art document related to the present invention is Korean Published Patent Application No. 10-2019-0113805 (October 8, 2019), which discloses a metal structure for supporting a fluid duct and an industrial facility including such a metal structure. The problem to be solved

[0006] The objective of the present invention is to provide a weldless assembly structure capable of ensuring constructability and structural stability. means of solving the problem

[0007] A weldless assembly structure according to the present invention comprises a plurality of support members, the lower ends of which are connected to the ground in the longitudinal direction; a pair of upper frame members, which are connected to the upper ends of the support members and have lengths on both sides, with an assembly groove formed concavely in the width direction facing each other; and a connecting frame member, the longitudinal sides of which are inserted between the upper frame members to correspond to the assembly groove, wherein the assembly grooves are arranged in a spaced-apart manner along the longitudinal direction of the upper frame members.

[0008] Additionally, the assembly groove is open to the upper part of the upper frame, and the connecting frame has both longitudinal sides seated through the upper part of the assembly groove, and its lower end may be positioned to be caught at the lower part of the assembly groove.

[0009] Additionally, it may include a first region bent at a right angle that is coupled to the width direction facing the upper frame part, and a second region on the other side that is in close contact with the width direction of the connecting frame part, and a plurality of first fastening members coupled to the width direction of the upper frame part and the connecting frame part through the first region and the second region by a screw coupling method.

[0010] Additionally, it may further include a base plate that is seated on the upper end of the support member and on which the lower end of the upper frame is seated on the upper surface, an upper holder that protrudes from below the base plate and wraps around the width direction of the support member in a corresponding shape, and a second fastening member that is coupled to the width direction of the support member through the edge of the upper holder and coupled to the lower surface of the upper frame member through the lower surface of the base plate. Effects of the invention

[0011] Since the present invention enables construction without a high level of proficiency, rapid assembly is possible without a high level of skill; by reducing minute cracks and assembly errors, structural stability can be maintained at a consistent level; and since no fire occurs during the assembly process, work safety can be improved.

[0012] In addition, the present invention allows for easy maintenance as partial replacement is possible, enables a simple exterior finish as irregular welded parts are not exposed externally, and offers the effect of being applicable in various fields due to its infinite expandability. Brief explanation of the drawing

[0013] FIG. 1 is a perspective view for showing a weldless assembly structure according to the present invention. FIG. 2 is an exploded perspective view to show a weldless assembly structure according to the present invention. FIG. 3 is an exploded perspective view showing the support portion, base plate, upper holder, second fastening member, bottom plate, lower holder, and third fastening member of a weldless assembly structure according to the present invention. FIG. 4 is an enlarged perspective view of a key part to show in detail the anti-detachment bracket of a weldless assembly structure according to the present invention. FIG. 5 is a front view showing a weldless assembly structure according to the present invention. FIG. 6 is a plan view for showing a weldless assembly structure according to the present invention. FIG. 7 is a perspective view showing a state in which a plurality of weldless assembly structures according to the present invention are connected. FIG. 8 is a front view to show a weldless assembly structure according to FIG. 7. FIG. 9 is a plan view to show a weldless assembly structure according to FIG. 7. Specific details for implementing the invention

[0014] A preferred embodiment according to the present invention will be described in detail below with reference to the attached drawings.

[0015] The advantages and features of the present invention and the method for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings.

[0016] However, the present invention is not limited by the embodiments disclosed below but may be implemented in various different forms, and these embodiments are provided merely to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0017] In addition, in describing the present invention, if it is determined that related known technologies, etc., may obscure the essence of the present invention, a detailed explanation thereof will be omitted.

[0018] FIG. 1 is a perspective view showing a weldless assembly structure according to the present invention, FIG. 2 is an exploded perspective view showing a weldless assembly structure according to the present invention, FIG. 3 is an exploded perspective view showing a support part, a base plate, an upper holder, a second fastening member, a bottom plate, a lower holder, and a third fastening member of a weldless assembly structure according to the present invention, FIG. 4 is an enlarged perspective view showing a detailed anti-detachment bracket of a weldless assembly structure according to the present invention, and FIG. 5 is a front view showing a weldless assembly structure according to the present invention.

[0019] FIG. 6 is a plan view for showing a weldless assembly structure according to the present invention, FIG. 7 is a perspective view for showing a state in which a plurality of weldless assembly structures according to the present invention are connected, FIG. 8 is a front view for showing a weldless assembly structure according to FIG. 7, and FIG. 9 is a plan view for showing a weldless assembly structure according to FIG. 7.

[0020] Referring to FIGS. 1 to 9, the weldless assembly structure according to the present invention includes a support portion (100), an upper frame portion (200), and a connecting frame portion (300).

[0021] The support member (100) is a structure for supporting the upper frame member (100) while spaced apart from the ground (10), and may be provided with a metal material having a vertical length, and its lower end is fixedly connected to the ground (10).

[0022] Here, the support member (100) may have a square beam shape in which four outer surfaces along the width direction form right angles, and the number and spacing of the support members (100) may be varied.

[0023] Additionally, the support member (100) can be installed vertically with a set length, and the front and rear sides of the support member (100) in the width direction can be formed at the same angle as the front and rear sides of the upper frame member (200) in the width direction to be described later.

[0024] A pair of upper frame sections (200) are configured to be fixed to the top of the support section (100) and installed in a spaced-away state from the ground (10), and can be connected to the top of the support section to have a horizontal length on both sides, and can have one side in the width direction facing each other at the same height.

[0025] Here, the upper frame portion (200) may be provided with a metal material and may have a square beam shape in which four outer surfaces along the width direction form right angles. At this time, the upper and lower surfaces along the width direction of the upper frame portion (200) may be formed horizontally, and the front and rear surfaces along the width direction of the upper frame portion (200) may be formed vertically.

[0026] Additionally, assembly grooves (210) may be formed concavely on one side of the upper frame portion (200) facing in the width direction. A plurality of assembly grooves (200) may be arranged spaced apart along the length direction of the upper frame portion (200).

[0027] Here, the assembly groove (210) can be formed vertically on both sides and horizontally at the bottom, and can be vertically opened to the upper part of the upper frame part (200) so that the two sides of the connecting frame part (300) to be described later can be seated.

[0028] Additionally, the assembly groove (210) can be formed by 3D laser drilling / perforation technology. That is, since the assembly groove (210) is not formed by welding the outer surface of the upper frame (200) on-site, the work time can be shortened and the risk of fire can be reduced.

[0029] The connecting frame portion (300) is a structure for interconnecting a pair of upper frame portions (200), and is inserted between the upper frame portions (200) such that both longitudinal sides correspond to the assembly groove (210).

[0030] The connecting frame section (300) may have a length direction perpendicular to the length direction of the upper frame section (200), and may be arranged in a spaced-apart manner along the width direction, and the length, spacing, number, etc. of the connecting frame section (300) can be applied in various ways.

[0031] Additionally, the connecting frame part (300) may have a square beam shape in which four outer surfaces along the width direction are perpendicular. In this case, both sides in the width direction of the connecting frame part (300) may be formed vertically, and both sides in the length direction may be inserted to correspond to the assembly groove (210).

[0032] At this time, the widthwise sides of the connecting frame part (300) may be vertically attached to both sides of the assembly groove (210), the lower surface of the connecting frame part (300) may be horizontally attached to the lower surface of the assembly groove (210), and the upper surface of the connecting frame part (300) may be in the same plane as the upper surface of the upper frame part (200).

[0033] In this state, since both longitudinal sides of the connecting frame part (300) are inserted in a shape corresponding to the assembly groove (210), the connecting frame (300) is not moved in the longitudinal direction and downward direction of the upper frame part (200).

[0034] A weldless assembly structure according to one embodiment of the present invention may include a first region (411) bent at a right angle (90 degrees) and coupled to the opposite width direction of an upper frame part (200), and a second region (412) on the other side that is in close contact with one side of the width direction of a connecting frame part (300), and a plurality of first fastening members (420) coupled to one side of the width direction of the upper frame part (200) and the connecting frame part (300) by a screw coupling method through the first region (411) and the second region (412).

[0035] The anti-detachment bracket (410) is made of a metal material and has a shape bent at 90 degrees along a vertical bending line, and one or more fastening holes can be horizontally penetrated through both sides of the first area (411) and the second area (412).

[0036] One side of the first area (411) of such a bracket (410) is in close contact perpendicularly with one side of the upper frame part (200) in the width direction, and one side of the corresponding second area (412) is in close contact perpendicularly with one side of the connecting frame part (300) in the width direction.

[0037] The first fastening member (420) is configured to connect the anti-detachment bracket (410) by a screw connection method and can be connected to the width-direction side surface of the upper frame part (200) and the connecting frame part (300) respectively through the fastening holes of the first area (411) and the second area (412).

[0038] One or more of such first fastening members (420) may have their front insertion end horizontally connected to one side of the upper frame part (200) in the width direction through the fastening hole of the first area (411), and their opposite operating end may be positioned to be caught on one side of the first area (411) opposite to the upper frame part (200).

[0039] Additionally, one or more of the first fastening members (420) may have their front insertion end horizontally connected to one side of the connecting frame part (300) in the width direction through the fastening hole of the second area (421), and their opposite operating end may be positioned to be caught on one side of the second area (412) opposite to the connecting frame part (300).

[0040] The insertion end of the first fastening member (420) may have a bolt structure with screw threads formed along the radial direction, and the operating end may have a plurality of locking surfaces formed along the radial direction to connect a rotary tool (not shown).

[0041] That is, in the present invention, since the anti-detachment bracket (410) connects the upper frame part (200) and the connecting frame part (300), the connecting frame part (300) does not detach from the inside of the assembly groove (210), and assembly can be completed by only the fastening process of the first fastening member (420) without a separate welding process.

[0042] Additionally, a weldless assembly structure according to one embodiment of the present invention may further include a base plate (510) that is seated on the upper end of a support member (100) and on which the lower end of an upper frame (200) is seated on the upper surface, an upper holder (520) that protrudes from the lower end of the base plate (510) and wraps the width direction of the support member (100) in a corresponding shape, and a plurality of second fastening members (530) that are horizontally connected through the edge of the upper holder (520) in the width direction of the support member (100) and vertically connected through the lower end of the base plate (510) to the lower surface of the upper frame member (200).

[0043] The base plate (510) may be made of a metal material, and its upper surface may be in close contact horizontally with the lower surface of the upper frame part (200), and a plurality of fastening holes may be formed vertically so that the second fastening member (530) can be connected. Here, the base plate (510) may have a length along the upper frame.

[0044] Additionally, it may further include a pair of catch portions (511) that are vertically bent upward from both sides of the base plate (510) and are in close contact at the same angle as both sides in the width direction of the upper frame portion (200).

[0045] That is, the lower surface of the upper frame part (200) can be maintained in a state where it is in close contact with the upper surface of the base plate (510) by the second fastening member (530), and since the locking portions (511) are formed on both sides of the base plate (510), the upper frame part (200) does not move in the width direction.

[0046] The upper holder (520) is configured to be coupled to the upper region of the support member (100), and may be made of a metal material and may have a shape that can wrap around the width direction of the support member (100) by being bent along a vertical bending line.

[0047] For example, the lower holder (620) may have a U-shape that is bent twice at a right angle. In this case, the support member (100) can be inserted through an open opening on one side, and the inner surface of the lower holder (620) can be in close contact with the outer surface of the support member (100) at the same angle.

[0048] Although not shown, the lower holder (620) may have a square frame shape with four outer surfaces forming right angles along the edges, and the inner surface of the lower holder (620) may be in close contact with the outer surface of the support member (100) at the same angle. In this case, the lower holder (620) can be connected through the upper or lower part of the support member (100).

[0049] Additionally, one or more fastening holes may be horizontally penetrated on both sides of the edge of the lower holder (620), and a third fastening member (630) may support or penetrate the edge of the support member (100) through the edge of the lower holder (620).

[0050] The third fastening member (630) is configured to combine the lower holder (620) and the support member (100), wherein the front insertion end is horizontally connected through the fastening hole of the lower holder (620), and the opposite operating end can be positioned to be caught on the edge of the lower holder (620).

[0051] At this time, the insertion end of the third fastening member (630) may have a bolt structure with screw threads formed along the radial direction, and the operating end may have a plurality of locking surfaces formed along the radial direction for connecting a rotary tool (not shown).

[0052] That is, in the present invention, since the support member (100), the lower holder (620), the bottom plate (610), and the ground (10) are joined by the third fastening member (630), assembly can be completed by only the fastening process of the third fastening member (630) without a separate welding process.

[0053] In addition, the weldless assembly structure according to the present invention can be organically connected with one or more weldless assembly structures forming another group to form a single assembly.

[0054] As illustrated in FIGS. 7 to 9, one or both sides in the longitudinal direction of the upper frame part (200) can be closely attached at an angle perpendicular to one side in the width direction of the upper frame part (200) to be connected.

[0055] In this state, the upper frame portion (200) to be connected can be connected at the same height by means of the connecting bracket (430) and the first fastening member (420), and the number and arrangement form of the weldless assembly structure can be selected in various ways as needed.

[0056] A connecting bracket (430) has a first region (431) bent at a right angle (90 degrees) that is connected to one side in the width direction of an upper frame (200) provided thereon, and a second region (432) on the other side that is attached to one side in the width direction of a connecting frame part (300) provided in another group.

[0057] Here, the connecting bracket (430) is made of a metal material and has a shape bent at 90 degrees with respect to a vertical bending line, and one or more fastening holes can be horizontally penetrated through both sides of the first area (431) and the second area (432).

[0058] One side of the first area (431) of such a connecting bracket (430) is vertically attached to one side of the width-direction side of the upper frame part (200) provided in one group, and one side of the corresponding second area (432) is vertically attached to one side of the width-direction side of the connecting frame part (300) provided in another group.

[0059] In this case, the first fastening member (420) can be connected to the upper frame part (200) of one group and the upper frame part (200) of the other group, respectively, through the fastening holes of the first area (431) and the second area (432).

[0060] That is, since the connecting bracket (430) of the present invention connects the upper frame portion (200) of the corresponding group, a plurality of weldless assembly structures can be organically connected to form a single assembly without a separate welding process.

[0061] Consequently, since the present invention enables construction without a high level of proficiency, rapid assembly is possible without a high level of skill, and minute cracks and assembly errors can be reduced, thereby maintaining structural stability at a certain level, and work safety can be improved because no fire occurs during the assembly process.

[0062] Furthermore, since the present invention allows for partial replacement, maintenance is easy; since irregular welded parts are not exposed externally, the exterior can be finished simply; and because it is infinitely expandable, it can be utilized in various fields.

[0063] Although specific embodiments of the weldless assembly structure according to the present invention have been described so far, it is obvious that various modifications are possible within the scope of the present invention.

[0064] Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof.

[0065] That is, the aforementioned embodiments should be understood as exemplary in all respects and not limiting, and the scope of the invention is defined by the claims set forth below rather than by the detailed description, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the invention. Explanation of the symbols

[0066] 10: Ground surface 20: Wall 100: Support section 200: Upper frame section 210: Assembly groove 300: Connecting frame part 410: Anti-detachment bracket 411: First area 412: Second area 420: First fastening member 430: Connecting bracket 431: First area 432: Area 2 510: Base plate 511: Locking section 520: Upper holder 530: Second fastening member 610: Bottom plate 620: Lower holder 630: Third fastening member

Claims

Claim 1 A plurality of support members, the lower ends of which are coupled to the ground in the longitudinal direction; a pair of upper frame members coupled to the upper ends of the support members, having lengths on both sides, and having assembly grooves formed concavely in the opposing width direction; and a connecting frame part inserted such that both longitudinal sides between the upper frame part correspond to the assembly groove; wherein the assembly grooves are arranged in a spaced-apart state along the longitudinal direction of the upper frame part, and include a first region bent at a right angle that is coupled to the width direction facing the upper frame part and a second region on the other side that is in close contact with the width direction of the connecting frame part, and a plurality of first fastening members coupled to the width direction of the upper frame part and the connecting frame part by a screw coupling method through the first region and the second region; further include a base plate seated on the upper end of the support part and having the lower end of the upper frame seated on its upper surface, an upper holder protruding from below the base plate and wrapping the width direction of the support part in a corresponding shape, and a second fastening member coupled to the width direction of the support part through the edge of the upper holder and coupled to the lower surface of the upper frame part through the lower surface of the base plate, and further include a member that is bent vertically upward from both sides of the base plate and at the same angle as both sides in the width direction of the upper frame part A weldless assembly structure further comprising a pair of close-fitting locking members, a bottom plate coupled to the ground, and a lower holder provided on the upper part of the bottom plate, wherein the lower holder has a square frame shape in which four outer surfaces form right angles along the edge, the inner surface of the lower holder is in close contact with the outer surface of the support member at the same angle, one or more fastening holes are horizontally penetrated on both sides of the edge of the lower holder, and a third fastening member supports or penetrates and connects the edge of the support member through the edge of the lower holder. Claim 2 A weldless assembly structure according to claim 1, wherein the assembly groove is open to the upper part of the upper frame portion, and the connecting frame portion has both longitudinal sides seated through the upper part of the assembly groove and its lower end is positioned to be caught at the lower part of the assembly groove. Claim 3 delete Claim 4 delete

Citation Information

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