Supporting device of floor support plate

Abstract

A main supporting frame is composed of aluminum alloy sections, one end of each section is provided with an inserting portion, the other end of each section is provided with an inserting groove, the adjacent sections are connected in an inserting and matching mode through the inserting portions and the inserting grooves, through holes are formed in the inserting portions and the inserting grooves, and after the adjacent sections are connected in an inserting and matching mode, the through holes are formed in the inserting portions and the inserting grooves. The through hole of the inserting part and the through hole of the inserting groove are positioned on the same axis; the buckle structure is used for fixing the adjacent sectional materials after insertion connection is completed, and the buckle structure comprises a plug pin used for initial locking and an elastic clamp spring used for self-locking limiting; the lifting adjusting mechanism is used for realizing height fine adjustment in the vertical direction, and the adjusting range is + / -2mm; when the plug pin is inserted into the through holes of the inserting part and the connecting part, the clamping spring is clamped into a limiting groove formed by the plug pin.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering construction technology, and in particular to a support device for floor decking. Background Technology

[0002] Currently, floor decking support devices, as a key temporary support system in cast-in-place concrete construction, are widely used in steel structure building projects. These structures are typically used to support profiled steel sheets mounted on steel beams, upon which the concrete floor slab is poured. Traditional support systems often consist of steel pipe columns, disc-lock scaffolds, or sleeve-type steel support components, assembled using threads, pins, or other methods. While these structures offer advantages in versatility and load-bearing capacity, they still exhibit significant shortcomings in terms of ease of operation, adjustment precision, and connection stability in actual steel structure construction scenarios.

[0003] However, existing floor decking support systems, such as disc-lock scaffolding full-span supports, still have many problems in practical applications. On the one hand, their node connections typically use rigid connections such as bolts, pins, or latches, and the structural stability largely depends on the assembly precision and locking quality of manual operation. Under construction disturbances, long-term loads, or frequent disassembly and assembly conditions, the connection points are prone to loosening or displacement, reducing the overall stability of the support system. On the other hand, current support structures generally use coarse-pitch screws or sleeve adjustment devices, which have low adjustment precision and are difficult to achieve millimeter-level fine adjustments. In steel structure floor slab construction, if the floor decking support system cannot provide reliable node positioning and high-precision height control, it will be difficult to ensure the uniformity of the concrete floor slab elevation and the tight fit with the steel beams, easily leading to quality problems such as uneven floor slab thickness and errors in the thickness of the fireproof protective layer, thereby affecting the overall safety, construction quality, and durability of the floor slab structure.

[0004] Based on the above-mentioned current technology, this utility model proposes an improved floor deck support device, thereby solving the problems of existing structures relying on manual operation for connection, easy loosening, and insufficient height adjustment accuracy. This avoids quality hazards such as uneven floor deck thickness, loose fit with steel beams, and deviation of fireproof layer caused by unstable support or elevation errors, ensuring the construction accuracy, safety, and performance of the structure. Utility Model Content

[0005] This utility model aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this utility model is to provide a support device for floor decking, which includes:

[0006] The main support frame is constructed of aluminum alloy profiles. Each profile has a connector at one end and a slot at the other end. Adjacent profiles are connected via the connector and slot. Both the connector and slot have through holes, and after adjacent profiles are connected, the through holes of the connector and slot are on the same axis. A snap-fit ​​structure is used to fix adjacent profiles after connection. The snap-fit ​​structure includes a pin for initial locking and a spring clip for self-locking. A lifting adjustment mechanism is used to achieve fine-tuning of the height in the vertical direction, with an adjustment range of ±2 mm. When the pin is inserted into the through hole of the connector and slot, the spring clip engages in the limiting slot of the pin.

[0007] In one possible implementation, the plug portion has a dovetail structure, and the plug slot is adapted to the plug portion so that the plug portion can be plugged into the plug slot.

[0008] In one possible implementation, the plug portion is provided with a guide groove, and the plug groove is provided with an automatic positioning groove.

[0009] In one possible implementation, the pin is a detachable axial pin, and the detachable axial pin has a tapered mating section on its outer periphery for compressing the elastic retaining spring to achieve elastic self-locking.

[0010] In one possible implementation, the detachable axial pin and the elastic retaining ring structure share a locking groove so that the retaining ring is compressed during the insertion of the pin, and the pin and the retaining ring are kept in a synchronous clamping state under vibration load.

[0011] In one possible implementation, the lifting adjustment structure includes a screw adjustment structure located at the bottom of the column of the main support frame, and / or a hydraulic fine-tuning structure located at the top support portion.

[0012] In one possible implementation, the lead screw adjustment structure includes a rotatable adjustable threaded rod and an adjustment seat located at the bottom of the column, for achieving precise adjustment of the height of the main support frame.

[0013] In one possible implementation, the hydraulic fine-tuning structure includes a miniature hydraulic cylinder and an adjustment control device for finely adjusting the support height and maintaining stability under top load.

[0014] In one possible implementation, a lateral stabilizing component is also included, which is disposed on both sides of the main support frame to enhance the overall structure's resistance to lateral displacement in the lateral direction. The lateral stabilizing component includes a cross brace disposed on the side of the main support frame and a stabilizing limiting block connected to the cross brace.

[0015] In one possible implementation, the aluminum alloy profile is selected from 6061 aluminum alloy in T6 condition and is anodized to improve corrosion resistance and surface strength.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0017] The floor decking support device provided by this utility model features a main support frame constructed from aluminum alloy profiles. Each profile has a plug-in section at one end and a plug-in groove at the other. Adjacent profiles are connected via the plug-in structure, and through holes are provided at corresponding locations for pin insertion and positioning. This structural design allows for rapid assembly and disassembly of the support unit, improving on-site construction efficiency. After plugging, the pin is inserted axially aligned with the designated through hole and secured by a snap-fit ​​structure. This snap-fit ​​structure includes a pin for initial locking and an elastic spring for self-locking and limiting, effectively preventing connection loosening due to vibration or displacement during construction and improving the stability of the joint connection. Furthermore, a lifting and adjusting mechanism is provided at the bottom or top of the support frame columns to achieve vertical height fine-tuning within a range of ±2 mm, meeting the requirements for elevation control accuracy during floor slab construction. Through the synergistic effect of the above-mentioned technical features, this utility model not only has the structural advantages of high assembly efficiency and reliable node locking, but also enables precise adjustment of support height. This solves the problems of unstable support connection and insufficient height adjustment accuracy in the prior art, thereby avoiding quality hazards such as uneven floor slab thickness, loose fit with steel beams, and deviation of fireproof layer, and improving the practicality, safety and construction accuracy of the support structure in steel structure floor slab construction. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a support device for a floor deck provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the snap-fit ​​structure provided in the embodiment of the present utility model;

[0021] Figure 3This is a schematic diagram of the lead screw adjustment structure provided in an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Main support frame; 2. Profile; 3. Insertion part; 4. Insertion groove; 5. Buckle structure; 6. Lifting and adjusting mechanism; 7. Pin; 8. Snap ring; 9. Guide groove; 10. Automatic positioning groove; 11. Conical mating section; 12. Screw adjustment structure; 13. Hydraulic fine adjustment structure; 14. Threaded rod; 15. Adjusting seat; 16. Miniature hydraulic cylinder; 17. Adjustment control device; 18. Lateral stabilizing component; 19. Cross brace; 20. Stabilizing limit block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Figure 1 A schematic diagram of a support device for a floor deck provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the internal structure of the snap-fit ​​structure provided in the embodiment of the present utility model; Figure 3 This is a schematic diagram of the lead screw adjustment structure provided in an embodiment of the present invention.

[0029] Please see Figure 1-3 In one possible implementation, the following is included: the main support frame 1 is made of aluminum alloy profiles 2, each profile 2 has a plug-in part 3 at one end and a plug-in groove 4 at the other end, adjacent profiles 2 are connected by plug-in parts 3 and plug-in grooves 4, both plug-in parts 3 and plug-in grooves 4 are provided with through holes, after plug-in connection, the through holes of plug-in parts 3 and plug-in grooves 4 are located on the same axis; a snap-fit ​​structure 5 is used to fix adjacent profiles 2 after plug-in, the snap-fit ​​structure 5 includes a pin 7 for initial locking and an elastic snap spring 8 for self-locking limit; a lifting adjustment mechanism 6 is used to realize vertical height fine adjustment, the adjustment range is ±2 mm; wherein, when the pin 7 is inserted into the through holes of plug-in parts 3 and plug-in grooves 4, the snap spring 8 is engaged in the limit groove set by the pin 7.

[0030] In the floor decking support device provided by this utility model, the main support frame 1 is composed of aluminum alloy profiles 2. Each profile 2 has a plug-in part 3 at one end and a plug-in groove 4 at the other end. Adjacent profiles 2 are connected by plug-in structure, and through holes are provided at corresponding positions for pins 7 to pass through and be positioned. This structural design allows the support unit to be quickly assembled and disassembled, improving on-site construction efficiency. After plugging, the pins 7 are inserted axially aligned with the through holes and fixed by a snap-fit ​​structure 5. The snap-fit ​​structure 5 includes a pin 7 for initial locking and an elastic snap spring 8 for self-locking and limiting, which can effectively prevent the connection from loosening due to vibration or displacement during construction and improve the stability of the node connection. The elastic snap spring 8 can be in the form of a U-shaped spring or a multi-claw snap ring, which has good elastic recovery performance and clamping retention capability.

[0031] In addition, a lifting and adjusting mechanism 6 is installed at the bottom or top of the support frame columns to achieve fine-tuning of the height within a range of ±2 mm in the vertical direction. Specifically, the adjusting mechanism may include a rotatable screw adjusting structure 12 located at the bottom of the column, which moves the column slightly up and down by rotating the screw rod 14, or a miniature hydraulic cylinder 16 structure located at the top support, which finely adjusts the support height via a control device. These various adjustment methods can be flexibly selected according to the precision requirements and operating conditions at the construction site.

[0032] Through the synergistic effect of the above-mentioned technical features, this utility model not only has the structural advantages of high assembly efficiency and reliable node locking, but also enables precise adjustment of support height. This solves the problems of unstable support connection and insufficient height adjustment accuracy in the prior art, thereby avoiding quality hazards such as uneven floor slab thickness, loose fit with steel beams, and deviation of fireproof layer, and improving the practicality, safety and construction accuracy of the support structure in steel structure floor slab construction.

[0033] In practical applications, the structural forms of the plug-in part 3 and the plug-in slot 4 can be selected according to the requirements of connection strength and assembly convenience, such as dovetail type, inclined guide rail type, etc. The pin 7 in the snap-fit ​​structure 5 can also be replaced with a positioning pin or quick-locking pin with similar functions. Under specific working conditions, the lifting adjustment device can also be replaced with a micro hydraulic leveling component, electric adjustment unit, gear meshing adjuster, etc., to meet the diverse requirements for adjustment efficiency and control accuracy under different construction conditions.

[0034] Please see Figure 2 In one possible implementation, the insertion part 3 is designed as a dovetail structure, with the insertion groove 4 fitting into it to form a stable mating. This structure utilizes the natural guiding properties of the dovetail shape, allowing adjacent profiles 2 to automatically correct their orientation during insertion. The insertion action proceeds smoothly and without jamming along the guide rail until the structure is fully aligned, the through holes precisely overlap, and the pin 7 is integrally inserted for positioning. After the structure is joined, a beveled interlocking joint is formed, resulting in a tight joint that effectively improves pull-out and shear resistance. This is particularly suitable for repeated assembly and disassembly and external disturbances during construction, maintaining the integrity and reliability of the structural connection at all times.

[0035] The dovetail connection method described above not only achieves efficient assembly, but also, thanks to its own inclined clamping effect, forms a preliminary pre-tightened state without the need for external fasteners. The connection process requires minimal manual intervention, significantly reducing the impact of assembly errors on node accuracy and ensuring that the overall frame structure possesses stable geometric relationships and sustained structural strength after installation.

[0036] This configuration is particularly suitable for floor decking support applications where both reliable connection and construction schedule are critical. To enhance versatility and adaptability, the insertion part 3 can also be designed with a bidirectional symmetrical dovetail bevel, further simplifying the insertion process and optimizing the stress state. Several guide ridges or sliding grooves can also be arranged on the inner side of the insertion slot 4 to further enhance the insertion guidance accuracy and structural coupling, fundamentally reducing on-site errors and improving the construction efficiency and reusability of the overall support system.

[0037] Furthermore, considering different construction conditions and performance requirements, the plug-in structure can be replaced with modified configurations such as trapezoidal guide tenons, conical sliding inserts, or curved surface fittings, depending on the technical parameters. The channel guide element can also be replaced with various mechanisms such as positioning posts, elastic limiting ribs, or sliding guide rails. Parameters such as the dovetail angle and length ratio, and structural fit clearance can also be refined according to the actual load and profile specifications to ensure sufficient strength margin and connection stability in various construction scenarios.

[0038] Please see Figure 2 In one possible implementation, the insertion part 3 is provided with a longitudinally extending guide groove 9, and the insertion groove 4 is provided with a matching automatic positioning groove 10. The guide groove 9 forms geometric contact with the positioning groove at the initial stage of insertion, and the insertion is guided by linear sliding. The insertion action transitions from initial guidance to precise positioning until the insertion part 3 is fully in place and the structural through hole is naturally aligned, providing a deviation-free basic condition for the insertion of the pin 7.

[0039] This structure achieves self-correction of the insertion path through coordinated matching of geometric shapes, reducing reliance on operational precision and effectively solving the assembly jamming and misalignment problems caused by tilting, deflection, or uneven force in traditional profile splicing. The guiding and positioning process requires no external adjustments, ensuring a smooth and consistent assembly process that adapts to the fast pace of on-site construction, while also improving the consistency of structural nodes and the stability of repeated connections.

[0040] In terms of structural design, the guide groove 9 can adopt different cross-sectional forms such as U-shaped, V-shaped, and wedge-shaped according to the specifications of profile 2. Its depth and width should form an interference or clearance fit with the positioning groove to adjust the insertion force and the introduction speed. The automatic positioning groove 10 can be set as a gradually narrowing channel or a multi-segment stepped structure to enhance the end alignment accuracy and rigidity of the assembly end. For the needs of multiple working conditions, the guide-positioning system can also be constructed as a segmented interlocking or multi-directional cooperative mechanism to ensure smooth overall insertion while taking into account directional adaptability and multi-dimensional stability.

[0041] Under specific construction conditions, the contact interface between the guide and positioning structures can be treated with surface treatments such as anodizing and polymer coating to reduce wear and jamming risks, thereby improving overall service life and adaptability to repeated construction. This automatic guided plug-in method demonstrates excellent engineering adaptability and structural versatility in steel structure floor decking support systems, constituting a reliable technical path that balances connection efficiency and positioning accuracy.

[0042] Please see Figure 2 In one possible implementation, the pin 7 is a detachable axial pin 7. The pin 7 body is a one-piece structure with a conical guide head at the front end. The outer periphery of the main body of the pin 7 is machined with a conical section extending axially, and the rear part is provided with an annular limiting groove. The pin 7 is used to pass through the through hole of the insertion part 3 and the insertion groove 4. Its insertion direction is consistent with the insertion direction of the profile 2. During the insertion process, the conical section will act on the inner wall of the elastic retaining spring 8, causing it to gradually open and generate radial elastic deformation.

[0043] The retaining ring 8 is located on the side wall of the insertion hole or inside the outer shell. It consists of two symmetrically distributed elastic clips, initially forming a closed open ring structure. During insertion, the guide head of the pin 7 first enters the ring opening of the retaining ring 8, and the conical section then pushes the retaining ring 8 to slowly expand until the pin 7 continues to slide in and the limiting groove reaches the position of the retaining ring 8. At this point, the retaining ring 8 quickly embeds itself into the groove due to its elastic recovery, thus achieving a gapless self-locking limit. This locking process requires no rotation or external tool assistance; it is completed entirely by the structural matching and elastic stress between the pin 7 structure and the retaining ring 8 component.

[0044] This structure offers exceptional ease of operation and reliable connection on construction sites. The pin 7 is quick to install and securely locks, effectively addressing common construction challenges such as high-frequency vibration, temporary support disturbances, and repeated disassembly and assembly. The angle of the conical mating section 11 is controlled between 25° and 30°, ensuring smooth insertion of the pin 7 while preventing damage to the retaining spring 8 or locking failure due to excessively steep angles.

[0045] In further design, the material of pin 7 can be high-strength steel, stainless steel or aluminum alloy, and the spring 8 can be 65Mn spring steel, titanium alloy or composite material with high fatigue life. Combined with surface strengthening treatments such as nitriding, electroplating nickel or coating with polytetrafluoroethylene, the overall corrosion resistance, wear resistance and locking life of the structure can be enhanced, making it suitable for long-term repeated use in steel structure construction environments.

[0046] Please see Figure 2In one possible implementation, the pin 7 structure and the elastic snap ring 8 structure share the same locking groove, forming a three-stage cooperative positioning system of engagement, clamping, and self-locking. The main body of the pin 7 is cylindrical along its long axis, and a set of annular grooves are machined on its outer periphery. These grooves are located after the conical section, and their cross-section can be designed as a V-shaped notch or an inverted trapezoidal stepped groove to provide a stable embedding space for the snap ring 8. The snap ring 8 structure consists of two symmetrically arranged C-shaped elastic plates, with their inner ends arc-shaped towards the central axis of the pin 7. Under static conditions, they are slightly contracted and possess a certain preload elastic force.

[0047] When the pin 7 is axially advanced into the insertion structure, its front guide head drives the conical section to first enter the inner ring of the retaining spring 8. The geometric angle of the conical section (usually set to 25° to 30°) forms continuous contact with the inner wall of the retaining spring 8, forcing the retaining spring 8 to expand outward, providing a gradual clearance path for the pin 7 to enter. This expansion process is limited by the material stiffness of the retaining spring 8 and the size of the reserved structural cavity. The pin 7 maintains a constant pushing force when passing through this area.

[0048] When the pin 7 is pushed into the locking groove, its groove naturally aligns with the elastic return path of the snap ring 8. Due to the release of internal tension, the snap ring 8 quickly embeds into the limiting groove, achieving dual locking of axial limiting and circumferential anti-rotation. Since the snap ring 8 and the pin 7 share a common groove, under vibration load or external disturbance, the snap ring 8 always maintains continuous lateral pressure on the pin 7, preventing slight loosening or slippage and unlocking.

[0049] This shared slot structure offers higher assembly stability and dynamic load-bearing capacity compared to the traditional separate snap ring 8 limiting design. On one hand, it reduces the number of structural interfaces, achieving high component integration and simplified operation; on the other hand, the pin 7 simultaneously performs positioning and clamping functions within a single slot, significantly improving connection efficiency and node accuracy.

[0050] To further enhance locking strength and service life, it is recommended that the pin 7 be made of tempered steel, stainless steel or titanium alloy, and the snap ring 8 be made of high fatigue limit spring steel or bimetallic composite material, and the contact surface be nitrided, hard chrome plated or PTFE coated to ensure stable performance in high-frequency disassembly, high temperature and humidity or strong corrosion environments.

[0051] Please see Figure 1 , 3 In one possible implementation, the lifting adjustment mechanism 6 includes a screw adjustment structure 12 disposed at the bottom of the column of the main support frame 1, and / or a hydraulic fine-tuning structure 13 disposed at the top support portion.

[0052] Specifically, when the construction environment is relatively stable, the supporting foundation is uniform, and the floor slab elevation error is within a controllable range, a screw-type adjustment structure 12 can be selected only at the bottom of the column. This structure mainly consists of a screw-type lifting rod, a guide sleeve limiting seat, and an adjustment base. Rotating the screw can drive the column to rise and fall as a whole. The adjustment stroke is generally set between ±10 mm and ±20 mm, which is suitable for rapid overall height adjustment or rough adjustment in the early stage of construction.

[0053] If the supporting structure requires high-precision adjustment of the top support position before concrete pouring, or in scenarios where there are slight height differences at the bottom of the steel beam and precise fitting is required, a hydraulic fine-tuning structure 13 installed only at the top can be used. This structure consists of a miniature hydraulic cylinder 16, a pressure control module, and an automatic return mechanism. The hydraulic cylinder controls the axial extension and retraction of the piston rod through injection pressure, precisely adjusting the height of the top support surface. The adjustment stroke can typically cover a range of ±2 mm to ±8 mm, with an adjustment resolution within 0.1 mm. It is suitable for precision construction applications with extremely high requirements for final elevation control, ensuring a uniform, gapless, and tight support interface between the concrete floor slab and the steel beam surface.

[0054] For complex working conditions with large ground undulations, long floor slab spans, or the need for cross-elevation connections, the screw adjustment structure 12 and the hydraulic fine-tuning structure 13 can be used in combination. The screw device installed at the bottom provides a large-range coarse adjustment foundation, while the hydraulic system located at the top undertakes the fine-tuning task at the end. Together, they form a two-way adjustment system for the column, ensuring overall support efficiency while also taking into account the accuracy control of the top surface. This is particularly suitable for site conditions where high-quality support adjustments need to be completed within a limited time.

[0055] In terms of structural materials, the lead screw can be made of high-strength steel with quenching treatment, and equipped with a locking mechanism to prevent rotational springback; the hydraulic cylinder body is recommended to be made of seamless steel pipe with hard chrome treatment, and the seals should have pressure resistance, oil resistance and fatigue resistance. Both structures can be embedded into the main support frame 1 profile 2 in a modular manner, with a compact layout, convenient for centralized control and quick replacement, and meet the construction adaptability and adjustment reliability of the support system under multiple working conditions.

[0056] Please see Figure 1 , 3 In one possible implementation, the lead screw adjustment structure 12 includes a rotatably adjustable threaded rod 14 and an adjustment seat 15 located at the bottom of the column, for achieving precise adjustment of the height of the main support frame 1.

[0057] The lead screw adjustment structure 12 mainly consists of three parts: a threaded lifting rod, a guide adjustment seat 15, and a limiting and clamping assembly. The threaded rod 14 has an external thread structure, with a screwing operation part at one end and the other end passing through the adjustment seat 15 and connecting to the column structure. When the operator rotates the operation part clockwise or counterclockwise, the screw engages and rotates inside the guide seat, driving the entire support column to move slightly vertically, achieving continuous and controllable height adjustment. The guide adjustment seat 15 is made of high-strength metal and has precision threaded grooves and anti-eccentric limiting surfaces inside to ensure that the threaded rod 14 maintains axial stability during rotation, avoiding skew or vibration.

[0058] The adjustment process requires no disassembly of the structure; the column height can be adjusted online simply by rotation, offering high engineering convenience. To prevent the threaded rod 14 from rotating back due to vibration or load changes, the structure is equipped with anti-loosening mechanisms, such as locking washers, double nut locking, or elastic baffles, achieving dual protection of mechanical self-locking and repeatable positioning to ensure long-term maintenance of adjustment accuracy.

[0059] The applicable adjustment range of this adjustment structure can be flexibly designed according to the pitch and rod length. The conventional adjustment stroke is set to ±10 mm to ±20 mm, which is suitable for large-scale elevation matching in the early stage of floor slab laying, as well as light compensation in the later stage. When used in conjunction with other structures (such as hydraulic systems), it can exist as a coarse adjustment subsystem to undertake the task of rapid alignment and foundation alignment.

[0060] In terms of materials, heat-treated tempered steel or galvanized carbon steel is recommended for threaded rod 14, and QT600 ductile iron or 6061 aluminum alloy is recommended for adjusting seat 15, which have good wear resistance and load-bearing capacity. The overall structure is compact, and the installation method can be screwed, plugged, or pre-embedded, which is convenient for integration into main support components of different sizes and load levels.

[0061] Please see Figure 1 , 3 In one possible implementation, the hydraulic fine-tuning structure 13 includes a miniature hydraulic cylinder 16 and an adjustment control device 17 for finely adjusting the support height and maintaining stability under top load.

[0062] The hydraulic fine-tuning structure 13 is mainly located at the top support position of the main support frame 1. Its core components include a miniature hydraulic cylinder 16, a pressure control pump group, a reflux stabilizing mechanism, and a positioning buffer structure. The hydraulic cylinder body is a one-piece molded high-strength seamless cylinder, with a high-precision piston and sealing ring assembly inside. The piston rod connects upward to the support plate or pad structure. When the system is in the adjustment state, working oil enters the bottom cavity of the hydraulic cylinder through external pressure (such as a manual oil pump or a centralized pressure supply control unit), pushing the piston rod to slowly extend in millimeter-level steps, thereby raising the support plate and performing high-precision fine-tuning of the top floor deck or the bottom surface of the steel beam.

[0063] To prevent the piston rod from retracting due to its own weight or load back pressure after adjustment, the hydraulic system is equipped with a check valve and a buffer chamber. A self-locking state is established based on pressure balance, ensuring that the adjustment height remains stable during concrete pouring. Simultaneously, a throttling and flow-limiting valve is installed in the hydraulic circuit to effectively control the oil flow rate, making the adjustment process linear and smooth, and preventing impact or vibration from being transmitted to the upper structure.

[0064] This fine-tuning structure is particularly suitable for construction sites where there are localized unevenness on the bottom surface of steel beams, uneven contact of the support surface, and strict requirements for overall floor slab elevation accuracy control. Compared to mechanical lead screws, hydraulic cylinders offer superior response speed, precision control, and compliance within a small stroke range. Especially in large-area continuous pouring operations of floor slabs, they can effectively improve the consistency of concrete layer thickness and the uniformity of support.

[0065] High-strength seamless steel pipes are recommended for the hydraulic cylinders, with hard chrome plating on the piston rod surface. The sealing system uses pressure-resistant fluororubber or polyurethane seals to ensure reliable operation under high load, humid conditions, or frequent adjustments. The control device can be configured as a centralized electrically controlled pump station, a unit integrated regulator, or an external manual pressure supply module to adapt to the operating habits and adjustment needs of different construction units. The overall structure can be embedded within the profile support frame, without interfering with the overall frame layout and handling.

[0066] Please see Figure 1 In one possible implementation, the floor decking support device further includes a lateral stabilizing component 18, which is disposed on both sides of the main support frame 1 to enhance the overall structure's resistance to lateral displacement in the lateral direction. The lateral stabilizing component 18 consists of a cross brace 19 and a stabilizing limiting block 20 connected thereto, which together form a lateral resistance system to effectively suppress the lateral displacement of the support frame under construction loads, lateral thrust, or vibration disturbance.

[0067] The cross brace 19 is a slender rod-shaped component, typically made of hollow round tube, rectangular tube, or reinforced C-shaped profile 2. One end is fixed to the main support column on one side via a plug, screw, or sleeve connection, while the other end is connected to the opposite column via a stabilizing limit block 20, forming a straddling rigid constraint. The cross brace 19 can be arranged horizontally or diagonally, depending on site constraints and load direction. The stabilizing limit block 20 is a limiting component pre-installed on the side of the column or at the end of the cross brace joint, its function being to limit the range of motion of the cross brace 19 and form a node lock.

[0068] During operation, the cross brace 19 can be installed in advance synchronously with the main frame, or it can be inserted into symmetrical positions on both sides after the frame is built. The installation is flexible and causes little structural interference. The stabilizing limit block 20 can adopt a sliding limit seat, a rotating closing socket, or a quick-release locking pin structure to ensure that the lateral stabilizer has sufficient tensile and shear resistance in the connected state without sacrificing disassembly and assembly efficiency.

[0069] This component is particularly suitable for construction applications involving significant vibration and impact during concrete pouring, frequent worker movement up and down, large support heights, and high overall stability requirements. By incorporating transverse components, it not only enhances the overall stiffness of the support system under lateral loads but also effectively prevents relative misalignment between support units, thereby improving the overall coordinated stability of multi-row, multi-column support frames.

[0070] For the cross brace 19, it is recommended to use anodized 6061-T6 aluminum alloy or high-strength galvanized steel pipe. The limiting block part is made of high-molecular elastic composite material or nylon-reinforced polyamide to adapt to different contact interfaces and take into account both durability and cushioning performance. The overall connection structure supports repeated assembly and disassembly and standardized modular configuration, which facilitates mass deployment and rapid on-site installation, meeting the lateral stability reinforcement requirements of various support systems under dynamic construction conditions.

[0071] In one possible implementation, the aluminum alloy profile 2 in the support device of the floor deck is selected from 6061 aluminum alloy in T6 condition and is anodized to improve the corrosion resistance and surface strength of the overall structure.

[0072] The aluminum alloy profile 2 is a heat-treated and strengthened profile material. It exhibits excellent chemical composition and structural stability. The T6 condition indicates that the material has undergone solution heat treatment and artificial aging treatment, possessing high yield strength and ductility, making it suitable for bearing construction loads of medium to high strength. In applications involving frequent disassembly and reassembly of supporting structures, varying stress directions, and exposed environments, this material balances strength, rigidity, and processability, effectively extending service life and reducing the risk of structural fatigue failure.

[0073] To further enhance the weather resistance and corrosion resistance of profile 2, anodizing is applied to its surface. This treatment forms a dense oxide film on the aluminum surface, typically with a thickness controlled between 10 and 25 micrometers. This film possesses excellent oxidation resistance, scratch resistance, and insulation properties, making it particularly suitable for complex construction environments such as humid, high-temperature, acid and alkali, or sea wind erosion. The oxide film surface can also be combined with a dyeing process for functional color marking, facilitating rapid identification and assembly alignment of parts of profile 2.

[0074] In terms of material strength, the typical yield strength of 6061-T6 aluminum alloy is between 240 and 275 MPa, and the tensile strength is over 290 MPa. Its strength per unit mass is better than that of ordinary carbon steel, while its density is only 1 / 3 that of steel. This can significantly reduce the overall weight of the supporting structure, reduce the intensity of manual handling, and improve assembly efficiency and on-site response speed.

[0075] Furthermore, this profile 2 possesses excellent weldability and machinability, making it suitable for the integrated processing or subsequent assembly of various interlocking parts 3, locking grooves, limiting holes, and other detailed structures. Combined with the interlocking locking mechanism and adjustment structure described in this application, it forms a highly consistent structural system. The overall material selection and processing scheme, taking into account structural performance, process adaptability, and safety in use, is a key foundation for achieving standardization, lightweighting, and engineering durability of the support structure.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A support device for floor decking, characterized in that, include: The main support frame is made of aluminum alloy profiles. Each profile has a plug-in part at one end and a plug-in groove at the other end. Adjacent profiles are connected by plug-in parts and plug-in grooves. Both the plug-in part and the plug-in groove are provided with through holes. After adjacent profiles are connected, the through holes of the plug-in part and the through holes of the plug-in groove are located on the same axis. A snap-fit ​​structure is used to fix adjacent profiles after insertion. The snap-fit ​​structure includes a pin for initial locking and an elastic snap spring for self-locking and limiting. A lifting adjustment mechanism is provided to achieve fine-tuning of the height in the vertical direction, with an adjustment range of ±2 mm. When the pin is inserted into the through hole of the plug and the connecting part, the snap ring is engaged in the limiting groove set by the pin.

2. The floor decking support device according to claim 1, characterized in that, The plug-in part has a dovetail structure, and the plug-in slot is adapted to the plug-in part so that the plug-in part can be plugged into the plug-in slot.

3. The floor decking support device according to claim 2, characterized in that, The plug-in part is provided with a guide groove, and the plug-in groove is provided with an automatic positioning groove.

4. The floor decking support device according to claim 1, characterized in that, The pin is a detachable axial pin, and the outer periphery of the detachable axial pin is provided with a tapered mating section for compressing the elastic retaining spring to achieve elastic self-locking.

5. The floor decking support device according to claim 4, characterized in that, The detachable axial pin and the elastic retaining ring structure share a locking groove so that the retaining ring is compressed during the insertion of the pin, and the pin and retaining ring are kept in a synchronous clamping state under vibration load.

6. The floor decking support device according to claim 1, characterized in that, The lifting and adjusting mechanism includes a screw adjusting structure located at the bottom of the column of the main support frame, and / or a hydraulic fine-tuning structure located at the top support part.

7. The floor decking support device according to claim 6, characterized in that, The lead screw adjustment structure includes a rotatable adjustable threaded rod and an adjustment seat located at the bottom of the column, used to achieve precise adjustment of the height of the main support frame.

8. The floor decking support device according to claim 6, characterized in that, The hydraulic fine-tuning structure includes a miniature hydraulic cylinder and an adjustment and control device, used to finely adjust the support height and maintain stability under top load.

9. The support device for the floor decking according to any one of claims 1-8, characterized in that, It also includes a lateral stabilizing component, which is disposed on both sides of the main support frame to enhance the overall structure's resistance to lateral displacement in the lateral direction. The lateral stabilizing component includes a cross brace disposed on the side of the main support frame and a stabilizing limit block connected to the cross brace.

10. The support device for the floor decking according to any one of claims 1-8, characterized in that, The aluminum alloy profile is made of 6061 aluminum alloy in T6 condition and is anodized to improve corrosion resistance and surface strength.

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