Prefabricated Lighthouse Structure

Abstract

The present invention relates to a prefabricated lighthouse structure, which includes a lower module (10), an intermediate module (20), and an upper module (30) such that the burden of transportation and installation can be significantly reduced by independently manufacturing the lower module, the intermediate module, and the upper module and assembling them on-site using a flange fastening method, and the rotation angle between the upper and lower modules is automatically corrected during the assembly process by an angle correction module provided on the upper and lower flanges of each module, thereby facilitating coaxial alignment of the fastening holes, and thus ensuring rapid and repeatable assembly quality regardless of the worker's skill level or reliance on manpower.

Description

Technology Field

[0001] The present invention relates to a prefabricated lighthouse structure, and more specifically, to a lighthouse structure installed in a coast, port, disaster prevention zone, or waterfront facility to perform navigational aid, safety guidance, and landscape design functions. More specifically, it relates to a prefabricated lighthouse structure that can be assembled on-site by stacking and combining a plurality of cylindrical modules in a vertical direction. Background Technology

[0003] Generally, lighthouse structures installed in coastal, harbor, and disaster prevention zones serve as facilities for navigational aids, safety guidance, and landscape enhancement, and have primarily been constructed in the form of cast concrete structures or monolithic steel structures.

[0004] These conventional lighthouse structures require large-scale civil engineering processes or installation work using heavy equipment on-site, resulting in long construction periods and problems where constructability is significantly degraded depending on coastal environments or weather conditions.

[0005] In addition, there is a limitation in that management efficiency is reduced because work must be performed on the entire structure even when maintenance or partial replacement of the structure is required.

[0006] Accordingly, in the previously disclosed registered patent No. 10-1276644, a technology aimed at shortening the construction period and improving construction efficiency by assembling and combining multiple steel structure modules manufactured in a factory at the construction site includes a coupling groove and a fastening structure for joining the structures.

[0007] However, the aforementioned prior art is based on the premise of a wall assembly structure for residential or general buildings, and does not consider vertical structures having a cylindrical cross-section or the issue of ensuring the continuity of stairs formed inside the structure. In particular, specific technical means are not disclosed regarding the internal stair alignment problem that may occur due to a mismatch in the rotation angle between upper and lower modules, or a structure for precisely correcting this on-site.

[0008] In addition, in another prior art, Public Patent No. 10-2023-0159776, a technology for implementing a modular combination type building structure by combining a plurality of modular units to form a rooftop structure and configuring some units to include stairwells or elevator facilities has been previously disclosed.

[0009] However, the aforementioned prior art is also a structure based on a rectangular architectural unit, and is difficult to apply directly to a cylindrical module structure joined along the circumferential direction. Furthermore, the stairs are disclosed merely as being placed in a fixed state on each unit; no structure is presented for precisely aligning the upper and lower stairs by adjusting the rotation angle of the stairs after assembly is complete, or for securely fixing the adjusted stair position.

[0010] As such, while some concepts of prefabricated construction using modular structures have been proposed in the prior art, technology for applying this to prefabricated lighthouse structures having a cylindrical structure to ensure alignment between upper and lower modules, automatically correct rotation angles during the flange fastening process, and simultaneously form internal stairs into a continuous spiral movement path has not been sufficiently disclosed. Prior art literature

[0012] (Patent Document 0001) KR 10-1276644 B1(Patent Document 0002) KR 10-2023-0159776 A The problem to be solved

[0013] Accordingly, the present invention was conceived to solve the aforementioned problems, and aims to provide a prefabricated lighthouse structure that can significantly reduce the burden of transportation and installation by independently manufacturing the lower module, middle module, and upper module and assembling them on-site using a flange fastening method, and facilitates coaxial alignment of the fastening holes by automatically correcting the rotation angle between the upper and lower modules during the assembly process through angle correction modules equipped on the upper and lower flanges of each module, thereby ensuring rapid and repeatable assembly quality regardless of the worker's skill level or reliance on manpower. means of solving the problem

[0015] To achieve this purpose, the features of the present invention include: a lower module (10) which is detachably fixed on a base (1) by fastening an anchor bolt (2), has an entrance (12) formed on one side of its outer surface, and has a lower step member (11) installed inside; and at least one intermediate module (20) which is formed to be coupled to the upper end of the lower module by a bolt fastening method, has a cylindrical outer surface, and has an intermediate step member (21) installed inside that is arranged to communicate vertically with the lower step member (11). The upper module (30) is formed to be connected to the upper part of the intermediate module by a bolt fastening method and includes a lighthouse lighting installation part (32), and has an upper step member (31) installed therein that is arranged to communicate vertically with the intermediate step member (21); wherein the lower module (10), the intermediate module (20), and the upper module (30) are each manufactured independently and brought to the site and configured to be sequentially stacked in a vertical direction, and an annular flange (100) is formed at the top and bottom of each module so as to correspond to each other, and the flange (100) is provided to be fastened by a fastening bolt (110), and as the lower module (10), the intermediate module (20), and the upper module (30) are assembled, the lower step member (11), the intermediate step member (21), and the upper step member (31) are continuously connected in a vertical direction to form a single spiral movement path.

[0016] At this time, the flanges (100) formed on the upper and lower ends of each module are formed in a circular ring shape, and a plurality of fastening holes (101) are spaced apart along the circumferential direction, and are configured so that a fastening bolt (110) is inserted and fastened through the fastening holes (101). The fastening holes (101) of the flanges (100) adjacent to each other in the upper and lower directions are configured to be aligned in a position corrected so as to coincide coaxially with each other by an angle correction module (40). The angle correction module (40) comprises a docking plate (41) spaced apart from each other at 180-degree intervals on the inner circumference of the upper flange (100), extending downward and having a '^' shaped docking groove (41a) formed on its bottom surface, and a docking plate (41) spaced apart from each other at 180-degree intervals on the inner circumference of the lower flange (100), and when the docking plate (41) moves downward, the docking groove (41a) and The device is characterized by including a docking pin (42) provided to engage, so that as the upper flange (100) is lowered and assembled toward the lower flange (100), the docking groove (41a) engages within the docking pin (42) and moves in an inclined manner, thereby automatically correcting the rotation angle between the upper and lower flanges, and the fastening holes (101) of the flanges (100) adjacent to each other in the vertical direction are provided to be aligned coaxially.

[0017] Additionally, the intermediate step member (21) is provided to be angle-corrected in the circumferential direction of the intermediate module (20) by a rotate module (50), and the rotate module (50) comprises an annular support rail (51) formed on the inner circumferential surface of the upper part of the intermediate module (20), an annular rotating body (52) seated on the annular support rail (51) and arranged to rotate along the circumferential direction of the intermediate module (20) and connected to the upper part of the intermediate step member (21), and a rotate roller (53) installed on one side of the intermediate step member (21) and provided to move along the inner circumferential surface of the intermediate module (20) as the intermediate step member (21) rotates together with the annular rotating body (52), so that after assembling the intermediate module (20) on the lower module (10), the intermediate step member (21) is rotated at a predetermined angle together with the annular rotating body (52) and the lower part of the intermediate step member (21) and the lower The upper portions of the stair members (11) are aligned so that they align with each other, and then the middle stair member (21) and the lower stair member (11) are connected.

[0018] Additionally, the annular rotating body (52) is provided to be fixed by pressure toward the inner surface of the intermediate module (20) by an expandable locking module (60), and the expandable locking module (60) comprises an annular inclined protrusion (61) formed on the outer surface of the annular rotating body (52) and formed such that its diameter expands from the top to the bottom, an annular inclined groove (62) formed in intaglio on the inner surface of the intermediate module (20) corresponding to the annular inclined protrusion (61) and formed such that its diameter expands from the top to the bottom, a gap groove (63) formed by cutting one end of the annular rotating body (52), an adjustment bolt (64) provided to be screw-fastened to one end of the annular rotating body (52) corresponding to the gap groove (63) and to be length-adjusted by pitch transfer, and installed on the other end of the annular rotating body (52) corresponding to the gap groove (63), and It is characterized by including a gap support (65) that is provided to expand the gap of the gap groove (63) by being pressed by the pitch transfer of the adjustment bolt (64), and after the angle is adjusted while the annular rotating body (52) is seated on the annular support rail (51), the gap support (65) is pressed by the pitch transfer of the adjustment bolt (64), thereby expanding the gap of the gap groove (63) and simultaneously expanding the diameter of the annular rotating body (52), and as a result, the annular inclined protrusion (61) is pressed against the annular inclined groove (62), causing the annular rotating body (52) to move downward inclination and be fixed by pressure toward the annular support rail (51). Effects of the invention

[0020] According to the above configuration and operation, the present invention can significantly reduce the burden of transportation and installation by independently manufacturing the lower module, middle module, and upper module and assembling them in a stacked manner on-site using a flange fastening method. Furthermore, the rotation angle between the upper and lower modules is automatically corrected during the assembly process by the angle correction module provided on the upper and lower flanges of each module, thereby facilitating coaxial alignment of the fastening holes. Consequently, the invention has the effect of ensuring rapid and repeatable assembly quality regardless of the worker's skill level or reliance on manpower. Brief explanation of the drawing

[0022] FIG. 1 is a schematic diagram showing the overall structure of a prefabricated lighthouse structure according to an embodiment of the present invention. FIG. 2 is a longitudinal section showing the internal structure of a prefabricated lighthouse structure according to an embodiment of the present invention. FIG. 3 is a configuration diagram showing an angle correction module of a prefabricated lighthouse structure according to an embodiment of the present invention. FIG. 4 is a configuration diagram showing a rotate module of a prefabricated lighthouse structure according to an embodiment of the present invention. FIG. 5 is a configuration diagram showing an expandable locking module of a prefabricated lighthouse structure according to an embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Furthermore, in describing the present invention, detailed descriptions of related known functions are omitted if they are deemed obvious to those skilled in the art and could unnecessarily obscure the essence of the invention.

[0024] FIG. 1 is a schematic diagram showing the overall structure of a prefabricated lighthouse structure according to an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view showing the internal structure of a prefabricated lighthouse structure according to an embodiment of the present invention, FIG. 3 is a schematic diagram showing an angle correction module of a prefabricated lighthouse structure according to an embodiment of the present invention, FIG. 4 is a schematic diagram showing a rotate module of a prefabricated lighthouse structure according to an embodiment of the present invention, and FIG. 5 is a schematic diagram showing an expandable locking module of a prefabricated lighthouse structure according to an embodiment of the present invention.

[0025] The present invention relates to a prefabricated lighthouse structure, which includes a lower module (10), an intermediate module (20), and an upper module (30) such that the burden of transportation and installation can be significantly reduced by independently manufacturing the lower module, the intermediate module, and the upper module and assembling them on-site using a flange fastening method, and the rotation angle between the upper and lower modules is automatically corrected during the assembly process by an angle correction module provided on the upper and lower flanges of each module, thereby facilitating coaxial alignment of the fastening holes, and thus ensuring rapid and repeatable assembly quality regardless of the worker's skill level or reliance on manpower.

[0026] The prefabricated lighthouse structure according to the present invention is provided to be installed on a foundation (1).

[0027] The above-described prefabricated lighthouse structure is configured such that the lower module (10), the middle module (20), and the upper module (30) are each manufactured independently and brought to the site, and are sequentially stacked in a vertical direction.

[0028] The above-described prefabricated lighthouse structure is configured such that a lower stair member (11), an intermediate stair member (21), and an upper stair member (31) are each installed inside each module (10, 20, 30), and are continuously connected in a vertical direction when the modules (10, 20, 30) are assembled, thereby forming a single spiral movement path.

[0029] The base part (1) according to the present invention is provided to provide an installation base for a prefabricated lighthouse structure.

[0030] The above-mentioned foundation (1) can be formed as a concrete foundation, a reinforced concrete foundation, or a fixed foundation structure equivalent thereto, and is constructed so that the upper surface is horizontal, thereby ensuring the verticality of the lower module (10) stacked on top.

[0031] The above-mentioned base part (1) is provided with anchor bolts (2) embedded or penetrating to detachably fix the lower module (10).

[0032] The above anchor bolt (2) may include a fixing portion embedded inside the foundation portion (1), and is provided with a screw thread formed on its upper portion to be connected to the lower portion fastening portion of the lower module (10).

[0033] Thus, the combination of the foundation (1) and the anchor bolt (2) is configured to ensure the detachability of the structure during on-site installation, removal, relocation, and repair processes of the prefabricated lighthouse structure, while also providing sufficient fixing rigidity after installation.

[0034] The lower module (10) according to the present invention is provided to be detachably fixed on the base part (1) by fastening an anchor bolt (2).

[0035] The lower module (10) is formed as a structure having a cylindrical outer circumference structure, and a fastening hole or fastening plate is formed at the bottom end to be fastened with an anchor bolt (2) so as to be stably fixed on the base (1).

[0036] The lower module (10) is provided with an entrance (12) formed on one side of the outer surface.

[0037] The above entrance (12) is formed as an opening so that a worker or inspector can enter and exit the lower module (10), and can be implemented as an opening and closing structure including a door, hinge, lock, etc.

[0038] The lower module (10) is configured so that a lower stair member (11) is installed inside.

[0039] The lower stair member (11) may be formed in a spiral or semi-spiral shape extending in an upward direction along the inner surface of the lower module (10), and may be provided to include a stepping surface for inspection movement and a bracket or support frame that supports it.

[0040] The lower step member (11) is provided to start from the inner bottom area of ​​the lower module (10) and extend upward, thereby providing an upper connection area for continuous connection with the intermediate step member (21) upon completion of assembly.

[0041] As such, the lower module (10) is a base module that is detachably coupled to the foundation (1), and forms a functional starting point of the prefabricated lighthouse structure by providing internal accessibility through the entrance (12) and a base for movement to the upper part through the lower stair material (11).

[0042] The intermediate module (20) according to the present invention is provided to be coupled to the upper part of the lower module (10) by a bolt fastening method.

[0043] The above intermediate module (20) is formed as an independent manufacturing module having a cylindrical outer surface and is configured to be stacked and fastened on top of the lower module (10) after being brought to the site.

[0044] The above intermediate module (20) is configured so that at least one or more can be stacked in succession.

[0045] The above intermediate module (20) is configured so that an intermediate stair material (21) is installed inside.

[0046] The above intermediate stair member (21) is arranged to communicate vertically with the lower stair member (11) and is configured to include a lower connecting area connected to the top of the lower stair member (11) and an upper connecting area connected to the upper stair member (31) in the assembled state of the intermediate module (20).

[0047] The above intermediate module (20) is configured such that one or more of them can be selectively applied and continuously stacked.

[0048] The above intermediate module (20) is manufactured with the same specifications for the outer shape, the fastening structure of the flange (100), and the arrangement structure of the intermediate stair member (21), so that the number of applications can be freely increased or decreased according to the total height of the lighthouse structure required at the site.

[0049] Since the above intermediate module (20) is formed as a module unit structure having the same shape and the same coupling specifications, it can be applied in an extended manner through the same assembly process and the same fastening structure, from the case where only one intermediate module (20) is applied to the case where multiple intermediate modules (20) are continuously stacked.

[0050] When examining the operation status, the on-site contractor can determine in advance the number of intermediate modules (20) to be applied based on the terrain conditions of the installation target location, the height requirements for navigational aids, or the relationship of visibility with surrounding structures, then sequentially stack the determined number of intermediate modules (20) on the lower module (10), connect each intermediate module (20) through a flange (100) and a fastening bolt (110), and finally connect the upper module (30) to form a lighthouse structure corresponding to the required height.

[0051] As such, the present invention allows the total height of the lighthouse structure to be flexibly arranged in various sizes without separate design changes or structural reinforcement simply by adjusting the number of intermediate modules (20), thereby enabling customized design for each installation environment, and can simultaneously improve economic efficiency and usability in terms of manufacturing, inventory, transportation, construction, and maintenance by utilizing standardized modules in common.

[0052] The above intermediate stair member (21) may be formed in a spiral or semi-spiral shape extending in an upward direction along the inner surface of the intermediate module (20), and may be implemented to include a stepping member, a support member, and a safety handrail.

[0053] As such, the intermediate module (20) includes an intermediate stair material (21) to allow the height of the structure to be expanded in modular units while ensuring that the internal movement path is not interrupted, thereby providing both expandability and continuity of movement path of the prefabricated lighthouse structure.

[0054] The upper module (30) according to the present invention is provided to be coupled to the upper part of the intermediate module (20) by a bolt fastening method.

[0055] The upper module (30) is formed as an independent module having a cylindrical outer structure and is configured to form the uppermost functional part of the lighthouse structure by being stacked and fastened to the top of the middle module (20).

[0056] The upper module (30) is configured to include a lighthouse lighting installation part (32).

[0057] The lighthouse lighting installation part (32) above may include a space in which a lighting device, lens, protective cover, support frame, or power / control wiring is installed, and is provided as a light source installation interface to perform navigational aid functions.

[0058] The upper module (30) is configured so that an upper stair member (31) is installed inside.

[0059] The upper stair member (31) is arranged to be vertically connected to the middle stair member (21) and is provided to extend to a height accessible to the lighthouse lighting installation part (32) inside the upper module (30).

[0060] Thus, the upper module (30) completes the upper functional part of the prefabricated lighthouse structure by including a lighting installation part (32) for performing the essential function of the lighthouse and an upper stair material (31) for securing maintenance accessibility.

[0061] The flange (100) according to the present invention is provided to be formed at the top and bottom of each module (10, 20, 30), respectively.

[0062] The above flange (100) is formed as an annular joint structure arranged to correspond to each other in the vertical direction and is provided to provide a connection reference surface and connection rigidity between adjacent modules.

[0063] The above flange (100) is provided to be fastened by a fastening bolt (110).

[0064] The above fastening bolt (110) is fastened by passing through a fastening hole (101) formed at a corresponding position between the flanges (100), thereby providing axial coupling force and shear resistance between the modules (10, 20, 30).

[0065] In this way, the combined structure of the flange (100) and the fastening bolt (110) is designed to be disassembled and assembled in modules (10, 20, 30), while ensuring fastening strength equivalent to that of an integrated structure after assembly is complete.

[0066] The above fastening holes (101) are provided such that a plurality of them are spaced apart along the circumferential direction of the flange (100).

[0067] The above-mentioned fastening holes (101) have an inner diameter into which a fastening bolt (110) can be inserted, and are arranged at equal or set intervals in the circumferential direction to prevent eccentricity when combining modules and to equalize the fastening rigidity.

[0068] The above fastening hole (101) is provided so that the fastening bolt (110) can be inserted and fastened by being aligned coaxially with the flanges (100) adjacent to each other in the vertical direction.

[0069] As such, coaxial alignment of the fastening holes (101) is a key factor determining the field constructability of the prefabricated lighthouse structure, and there is a technical challenge in which misalignment of the fastening holes is likely to occur due to rotation angle errors, especially in cylindrical structures.

[0070] In FIG. 3, the angle correction module (40) according to the present invention is provided to align the fastening holes (101) of flanges (100) adjacent to each other in the vertical direction in a position-corrected state so that they coincide on the same axis.

[0071] The angle correction module (40) is provided to include docking plates (41) spaced apart from each other at 180-degree intervals on the inner circumference of the flange (100) positioned on the upper side.

[0072] The above docking plate (41) is formed as a plate-like structure extending downward, and is provided so that a docking groove (41a) in the shape of a '^' is formed on the bottom surface.

[0073] The above docking home (41a) is formed as a guide home structure having inclined surfaces on both sides, and is provided to induce a relative rotation angle through engagement with the docking pin (42) during lower assembly.

[0074] The angle correction module (40) is provided to include docking pins (42) spaced apart from each other at 180-degree intervals on the inner circumference of the flange (100) positioned on the lower side.

[0075] The above docking pin (42) may be formed as a protruding pin or a projection structure and is provided to have a position and shape that allows it to enter the docking groove (41a) and engage when the upper flange (100) is lowered and assembled.

[0076] When observing the operating state, in the initial stage where the upper flange (100) is lowered and assembled toward the lower flange (100), the docking groove (41a) of the docking plate (41) is guided to come into contact with the docking pin (42), and as the docking pin (42) moves relatively inclinedly along the inclined surface of the docking groove (41a), the rotational position of the upper flange (100) is finely adjusted.

[0077] Since the above-mentioned inclination movement is configured to occur naturally as the upper flange (100) descends, the rotation angle correction is automatically performed even if the operator does not perform a separate rotation alignment operation while the weight is in a lowered state.

[0078] When the above rotation angle correction is completed, the fastening holes (101) of the flanges (100) adjacent to each other in the vertical direction are aligned in a state where they coincide on the same axis, and the fastening bolt (110) can be smoothly inserted through the fastening holes (101) to be fastened.

[0079] The alignment process described above is applied in the same way to the stacking process of multiple intermediate modules (20) in which the flange (100) connection is repeated, thereby ensuring repeatability and quality consistency of the entire structure assembly.

[0080] As such, the present invention structurally prevents assembly delays and rework caused by misalignment of the fastening hole (101) when fastening the flange (100) through the angle correction module (40), and automatically corrects the rotational alignment problem that inevitably occurs in the cylindrical module structure through the lowering assembly operation itself, thereby dramatically improving the field constructability of the prefabricated lighthouse structure.

[0081] In addition, the intermediate stair member (21) according to the present invention is installed so as to be rotatable in the circumferential direction of the intermediate module (20) by a rotate module (50) so as to be able to correct the angle.

[0082] The above intermediate stair member (21) is formed as a spiral stair structure installed inside the intermediate module (20), and the lower part is configured to be connected so as to be continuously connected to the upper part of the lower stair member (11), and the upper part is arranged to be in communication with the upper stair member (31).

[0083] The above intermediate step member (21) is provided to be mounted to the intermediate module (20) in a rotatable state rather than a fixed installation to absorb relative rotational error that may occur during the module stacking process.

[0084] In FIG. 4, the rotate module (50) is configured to include an annular support rail (51) formed on the inner surface of the upper part of the intermediate module (20).

[0085] The above-mentioned annular support rail (51) is formed as an annular structure that is continuously formed along the inner circumference of the intermediate module (20), and is provided to provide a support surface on which an annular rotating body (52) can be stably seated and rotated.

[0086] The above-mentioned annular support rail (51) may be formed integrally or combined with a separate reinforcing member so as not to compromise the structural rigidity of the intermediate module (20).

[0087] The above-mentioned rotate module (50) is seated on an annular support rail (51) and is rotatably positioned along the circumferential direction of the intermediate module (20), and is provided to include an annular rotating body (52) to which the upper part of the intermediate step member (21) is connected.

[0088] The above-mentioned annular rotating body (52) is formed to be able to rotate in the circumferential direction while seated on the annular support rail (51), and the upper part of the intermediate step member (21) is connected in an integral or connected state to rotate together with the annular rotating body (52).

[0089] The above-mentioned annular rotating body (52) is configured to distribute and transmit the load of the intermediate step material (21) to the annular support rail (51), and to provide stable support even during rotation adjustment.

[0090] The above-mentioned rotate module (50) includes a rotate roller (53) that is installed on one side of the intermediate step member (21) and is configured to move along the inner surface of the intermediate module (20) as the intermediate step member (21) rotates together with an annular rotating body (52).

[0091] The above-mentioned rotate roller (53) is provided to prevent the side of the intermediate step material (21) from coming into direct frictional contact with the inner surface of the intermediate module (20) during rotation, and to reduce rotational resistance so that angle adjustment work can be performed smoothly.

[0092] The above-mentioned rotate roller (53) may include a bearing structure or be formed of a low-friction material.

[0093] When looking at the operating state, the lower module (10) is fixed to the base (1) and the middle module (20) is stacked and combined on the lower module (10), and the middle step member (21) is maintained in a state where it can rotate in the circumferential direction by means of an annular rotating body (52), an annular support rail (51), and a rotate roller (53).

[0094] In this state, the operator can rotate the intermediate step member (21) together with the annular rotating body (52) at a predetermined angle so that the lower part of the intermediate step member (21) is aligned with the upper part of the lower step member (11) in the same rotational phase.

[0095] Once the above alignment is completed, the intermediate step member (21) and the lower step member (11) are connected through a fastening member, so that the lower step member (11) and the intermediate step member (21) form a continuous spiral movement path.

[0096] As such, the present invention applies a rotate module (50) to enable active correction of the stair position error that may inevitably occur when stacking intermediate modules (20) at the site, thereby promoting convenience of on-site module assembly and improved constructability by non-skilled workers when assembling intermediate modules (20) in multiple layers.

[0097] In particular, the above-mentioned rotate module (50) is provided so that it can be applied in the same way even in a multilayer configuration in which a plurality of intermediate modules (20) are stacked in succession.

[0098] When the above intermediate modules (20) are stacked vertically in multiple numbers, the intermediate step members (21) installed on each of the adjacent intermediate modules (20) are maintained so as to be rotatable in the circumferential direction by the rotate module (50), thereby enabling the lower end of the upper intermediate step member (21) and the upper end of the lower intermediate step member (21) to be easily aligned on the same rotational phase.

[0099] When looking at the operating state, if the upper intermediate module (20) is stacked and combined while the intermediate step member (21) of the lower intermediate module (20) is not fixed in position first, the operator can simply perform an alignment operation by rotating either the upper or lower intermediate step member (21) by a predetermined angle through the rotate module (50) to align the connecting ends of the two intermediate step members (21) with each other.

[0100] At this time, each intermediate step member (21) is rotated while supported by an annular rotating body (52), an annular support rail (51), and a rotate roller (53), so rapid alignment is possible even with a small workforce without being significantly affected by weight or structural load.

[0101] As such, even when applying intermediate modules (20) in multiple layers, the present invention utilizes the rotate module (50) as a common structure, thereby enabling rotational phase alignment and connection work between adjacent intermediate stair members (21) to be performed simply and repeatedly without a separate auxiliary device or complex measurement process, so that the constructability of internal stair connections can be significantly improved even in a multi-layer module assembly environment.

[0102] In FIG. 5, the annular rotating body (52) is provided to be fixed by pressure toward the inner surface of the intermediate module (20) by an expandable locking module (60) after the rotation angle adjustment of the intermediate step member (21) is completed.

[0103] The above-mentioned expandable locking module (60) is provided as a restraining means to prevent the annular rotating body (52) from rotating or detaching due to external vibration, wind load, or repeated use even after the position of the annular rotating body (52) has been determined.

[0104] The above-mentioned expandable locking module (60) is formed on the outer surface of the annular rotating body (52) and is provided to include an annular inclined protrusion (61) formed such that its diameter expands as it goes from the top to the bottom.

[0105] The above-mentioned annular inclined protrusion (61) can be continuously formed along the circumferential direction and is provided with an inclined surface structure in which the outer diameter increases as it moves downward, so that a pressing force is generated when moving downward.

[0106] The above-mentioned expandable locking module (60) is provided to include an annular inclined groove (62) formed to have a diameter that expands as it goes from the top to the bottom, which is formed in a recess on the inner circumference of the intermediate module (20) to correspond to the annular inclined protrusion (61).

[0107] The above-mentioned annular inclined groove (62) is formed to have an angle corresponding to the inclined surface of the annular inclined protrusion (61), and is provided to generate a pressure fixing effect due to downward movement when the two components are engaged.

[0108] The above-mentioned expandable locking module (60) is provided to include a gap groove (63) formed by cutting one end of the annular rotating body (52).

[0109] The above gap groove (63) is cut in a portion along the circumferential direction of the annular rotating body (52) to provide an elastic or mechanical gap space that allows for the expansion of the outer diameter.

[0110] The above-described expandable locking module (60) is provided to include an adjustment bolt (64) which is screw-fastened to one end of an annular rotating body (52) corresponding to the gap groove (63) and is configured to be length-adjustable by pitch transfer.

[0111] The above adjustment bolt (64) is formed to be axially movable through rotational operation and is provided to adjust the gap expansion force according to the operation torque.

[0112] The above-mentioned expandable locking module (60) is installed at the other end of the annular rotating body (52) corresponding to the gap groove (63) and is configured to include a gap support (65) which is pressed by the pitch transfer of the adjusting bolt (64) to expand the gap of the gap groove (63).

[0113] The gap support (65) converts the axial pressure transmitted from the adjustment bolt (64) into a circumferential expansion force of the annular rotating body (52) to spread both sides of the gap groove (63).

[0114] When looking at the operating state, after the rotation angle of the intermediate step member (21) is adjusted while the annular rotating body (52) is seated on the annular support rail (51), the operator rotates the adjustment bolt (64) to generate pitch transfer.

[0115] Accordingly, the gap support (65) is pressed by the adjustment bolt (64), and as the gap groove (63) gradually expands, the outer diameter of the annular rotating body (52) expands.

[0116] Due to the expansion of the outer diameter, the annular inclined protrusion (61) comes into strong pressure contact with the annular inclined groove (62), and in this interlocking state, the annular rotating body (52) moves downward inclinedly along the inclined surface and is fixed in close contact with the annular support rail (51).

[0117] As a result, the annular rotating body (52) is securely fixed in a state where rotation is impossible, and the position of the intermediate step member (21) is maintained stably for a long period of time.

[0118] As such, the present invention allows the structural restraint state to be stably maintained even after the angle adjustment of the intermediate stair member (21) through the expandable locking module (60), thereby ensuring the consistency and safety of the stair structure against vibrations, wind loads, and repeated traffic loads that may occur during the use of the prefabricated lighthouse structure.

[0119] As described above, the detailed description of the present invention has explained the most preferred embodiment of the present invention, but various modifications are possible within the scope of the technical scope of the present invention. Accordingly, the scope of protection of the present invention should not be limited to the above embodiment, but should be recognized to include the technologies of the claims described below and equivalent technical means derived from these technologies. Explanation of the symbols

[0121] 10: Lower module 20: Middle module 30: Upper module 40: Angle correction module 50: Rotate Module 60: Expandable Locking Module

Claims

Claim 1 In a prefabricated lighthouse structure installed on a foundation, the structure comprises: a lower module (10) which is detachably fixed to the foundation (1) by means of anchor bolt fastening, has an entrance (12) formed on one side of its outer surface, and has a lower step member (11) installed inside; at least one intermediate module (20) which is formed to be coupled to the upper end of the lower module by means of bolt fastening, has a cylindrical outer surface, and has an intermediate step member (21) installed inside that is arranged to communicate vertically with the lower step member; and an upper module (30) which is formed to be coupled to the upper end of the intermediate module by means of bolt fastening, includes a lighthouse lighting installation part, and has an upper step member (31) installed inside that is arranged to communicate vertically with the intermediate step member.The lower module, middle module, and upper module are each manufactured independently and brought to the site and configured to be sequentially stacked in a vertical direction. An annular flange is formed at the top and bottom of each module so as to correspond to one another, and the flanges are provided to be fastened by bolts. As the lower module, middle module, and upper module are assembled, the lower step member, middle step member, and upper step member are continuously connected in a vertical direction to form a single spiral movement path. The flanges formed at the top and bottom of each module are formed in a circular ring shape, and a plurality of fastening holes are spaced apart along the circumferential direction. Fastening bolts are inserted and fastened through the fastening holes. The fastening holes of the flanges adjacent to each other in the vertical direction are configured to be aligned in a position corrected to coincide coaxially with each other by an angle correction module. The angle correction module (40) is spaced apart from each other at 180-degree intervals on the inner circumference of the upper flange, extends downward, and has a '^' shaped docking groove (41a) formed on its bottom surface. A prefabricated lighthouse structure characterized by comprising a docking plate (41) and docking pins (42) spaced apart from each other at 180-degree intervals on the inner circumference of a flange positioned on the lower side and configured to engage with the docking groove when the docking plate moves downward, wherein as the upper flange is assembled downward toward the lower flange, the docking groove engages with the docking pin and moves in an inclined manner, thereby automatically correcting the rotation angle between the upper and lower flanges, and wherein the fastening holes of the flanges adjacent to each other in the vertical direction are aligned coaxially. Claim 2 delete Claim 3 The prefabricated lighthouse structure according to claim 1, wherein the intermediate step member is provided to be angle-corrected in the circumferential direction of the intermediate module by a rotate module, and the rotate module (50) comprises an annular support rail (51) formed on the inner circumferential surface of the upper part of the intermediate module, an annular rotating body (52) seated on the annular support rail and arranged to be rotatable along the circumferential direction of the intermediate module and connected to the upper part of the intermediate step member, and a rotate roller (53) installed on one side of the intermediate step member and provided to move along the inner circumferential surface of the intermediate module as the intermediate step member rotates together with the annular rotating body, and wherein, after assembling the intermediate module on the lower module, the intermediate step member is rotated at a predetermined angle together with the annular rotating body to align the lower part of the intermediate step member and the upper part of the lower step member so as to coincide with each other, and then the intermediate step member and the lower step member are connected. Claim 4 In claim 3, the annular rotating body is provided to be fixed by pressure toward the inner surface of the intermediate module by an expandable locking module, and the expandable locking module (60) includes an annular inclined protrusion (61) formed on the outer surface of the annular rotating body and formed such that its diameter expands from the top to the bottom, an annular inclined groove (62) formed in intaglio on the inner surface of the intermediate module corresponding to the annular inclined protrusion and formed such that its diameter expands from the top to the bottom, a gap groove (63) formed by cutting one end of the annular rotating body, an adjustment bolt (64) provided to be screw-fastened to one end of the annular rotating body corresponding to the gap groove and to be length-adjusted by pitch feed, and a gap support (65) installed on the other end of the annular rotating body corresponding to the gap groove and provided to be pressed by the pitch feed of the adjustment bolt to expand the gap of the gap groove, and after the angle is adjusted while the annular rotating body is seated on the annular support rail, the A prefabricated lighthouse structure characterized by being configured such that by pitch-moving an adjustment bolt to press the gap support member, the gap of the gap groove is expanded and the diameter of the annular rotating body is expanded simultaneously, and as a result, the annular inclined protrusion is pressed against the annular inclined groove, causing the annular rotating body to move downward inclination and be pressed and fixed toward the annular support rail.

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