Adjustable temporary jig

Abstract

The utility model provides a kind of adjustable temporary assembly jig, it is related to building pillar technical field, including: lifting pedestal, upper end is provided with inner sleeve column;Lifting portal, including top beam and fixedly set in the sleeve of top beam bottom, the sleeve is compatible with the inner sleeve column, the sleeve is connected on the inner sleeve column, to form the sleeve structure of relatively sliding;Jacking mechanism is set on the lifting pedestal, and its jacking part acts on the bottom of the lifting portal, for jacking and adjusting the height of the lifting portal relative to the lifting pedestal.The jig of the utility model realizes quick installation and accurate adjustment by modular design and height adjustable mechanism, greatly improves construction efficiency;Its reusable characteristics significantly reduce steel consumption and construction cost.

Description

Technical Field

[0001] This utility model relates to the field of building support technology, and in particular to an adjustable temporary assembly frame. Background Technology

[0002] With the development of modern architectural art, steel structure buildings with complex shapes and large spatial spans are becoming increasingly common. These buildings often employ a construction model of factory prefabrication and on-site assembly, where the steel structure is first processed into individual components in the factory and then transported to the site for overall assembly. However, due to road regulations and the size of transport vehicles, large-span structures often need to be transported to the site in sections of a certain length. Currently, on-site assembly often uses temporary jigs assembled according to specific structural requirements. These jigs are often discarded after use, resulting in low steel utilization and significant waste, which contradicts the green, low-carbon, and sustainable development concepts of the construction industry.

[0003] In the prior art, Chinese utility model patent CN220365327U discloses a herringbone-shaped mobile steel component assembly jig, including a support platform and legs. The lower end of the legs is equipped with bolt support components and rollers. The support platform is fixedly mounted on the upper end of the legs and is equipped with an electromagnet adsorption component. During the steel component assembly process, this utility model allows the jig to be moved to a designated position via rollers to provide support for the steel component, improving the jig's movement efficiency.

[0004] This support frame is essentially an adjustable support pier with wheels. Its "A-frame" structure means it is only suitable for supporting specific nodes or small components, and cannot support long, narrow components such as large-span trusses, steel beams, and space frames, or components requiring multi-point, continuous support. Its support platform area is small and cannot provide a stable and reliable support surface for large components. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the issues of low installation efficiency and serious steel waste caused by the inability to flexibly adjust and reuse traditional temporary assembly jigs.

[0006] To achieve the above objectives, according to one aspect of the utility model, an adjustable temporary assembly frame is provided, comprising: a lifting base with an inner sleeve column at its upper end; a lifting gantry, including a top crossbeam and a sleeve fixedly disposed at the bottom of the top crossbeam, the sleeve being adapted to the inner sleeve column and sleeved onto the inner sleeve column to form a relatively sliding sleeve structure; and a lifting mechanism disposed on the lifting base, the lifting part of which acts on the bottom of the lifting gantry for lifting and adjusting the height of the lifting gantry relative to the lifting base.

[0007] As a preferred embodiment of the above technical solution, there are two lifting mechanisms, which are symmetrically arranged on the lifting base; there are two sets of sleeve structures, which are respectively connected to the two lifting gantry frames; the lifting ends of the two lifting mechanisms act on the bottom of the two lifting gantry frames respectively.

[0008] As a preferred embodiment of the above technical solution, each lifting gantry includes two sleeves; the corresponding lifting base is provided with two inner sleeve columns below each lifting gantry; the two sleeves of each lifting gantry are respectively provided on both sides of the corresponding lifting mechanism.

[0009] As a preferred embodiment of the above technical solution, the lifting base includes a base beam, and the inner sleeve column is vertically fixed to the base beam by connecting bolts.

[0010] As a preferred embodiment of the above technical solution, the inner sleeve column includes a first H-beam and a base plate welded to the lower end of the first H-beam, and the base plate is detachably connected to the base beam by the connecting bolts.

[0011] As a preferred embodiment of the above technical solution, an auxiliary column is also vertically provided at the bottom of the lifting gantry, and the auxiliary column is located above the lifting end of the lifting mechanism.

[0012] As a preferred embodiment of the above technical solution, the upper end of the lifting gantry is provided with a spot welding structure for temporarily fixing the components to be assembled.

[0013] As a preferred embodiment of the above technical solution, a connecting hole is provided on the base plate; the first H-beam welded to the base plate and the base plate together form an accommodating space; the connecting hole is located within the accommodating space, so that the protruding part of the connecting bolt after installation is accommodated within the accommodating space.

[0014] In summary, this utility model has the following advantages: 1. The jig of this utility model, through its modular design and height-adjustable mechanism, enables rapid installation and precise adjustment, greatly improving construction efficiency; its reusability significantly reduces steel consumption and construction costs, while avoiding the risks of working at heights and enhancing operational safety. 2. Furthermore, this utility model significantly improves the overall stability and load distribution uniformity of the jig system through the synergistic effect of the double lifting mechanism and the four-point support structure, effectively avoiding the risk of eccentric loading, and is particularly suitable for safe assembly operations of large-span and asymmetrical components. 3. Furthermore, this utility model adopts standardized components and a fully bolted connection design, which greatly reduces the difficulty of on-site assembly and technical dependence. Construction personnel can complete quick assembly and disassembly without special tools, which shortens the project cycle and reduces labor costs, and has good applicability for promotion.

[0015] Further or other beneficial effects will be discussed in the embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is an exploded view of the lifting base structure of this utility model; Figure 4 This is an exploded view of the lifting gantry structure of this utility model; Among them, 100-lifting base, 110-inner sleeve column, 111-first H-beam, 112-base plate, 120-base beam, 200-lifting gantry, 210-top beam, 220-sleeve, 230-auxiliary column, 300-lifting mechanism, 400-connecting bolt. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0018] The present invention will be further explained below with reference to the embodiments: Example:

[0019] An adjustable temporary assembly jig, as shown in the reference Figure 1 , Figure 2 , Figure 3 and Figure 4The system includes a lifting base 100, a lifting gantry 200, and a lifting mechanism 300. The lifting base 100 is made of hot-rolled H-beams, providing high load-bearing capacity and stability. An inner column 110 is installed at the upper end of the base, consisting of a first H-beam 111 and a base plate 112 welded to its lower end. The base plate 112 is vertically fixed to the base beam 120 by connecting bolts 400, forming a detachable connection. Connecting holes on the base plate 112 precisely align with the base beam 120. The first H-beam 111 and the base plate 112 together form an accommodating space specifically designed to accommodate the protruding parts of the connecting bolts 400, ensuring a flat bottom surface after installation and preventing uneven contact.

[0020] The bottom of the lifting gantry 200 is equipped with a sleeve 220 that matches the inner sleeve column 110. Made of prefabricated square steel tubing, the sleeve 220 ensures precise fit with the inner sleeve column 110. The sleeve 220 fits onto the inner sleeve column 110, forming a relatively sliding connection structure. This design ensures the stability and accuracy of the lifting gantry 200 when moving vertically along the column. The center distance between the sleeve 220 and the inner sleeve column 110 is precisely calculated to ensure smooth relative sliding.

[0021] Two lifting mechanisms 300 are symmetrically arranged on the lifting base 100. The two lifting mechanisms 300 are selected according to the single-point support force requirements, and their lifting parts act on the bottom of the two lifting gantry frames 200 respectively. Each lifting gantry frame 200 includes two sleeves 220, and the corresponding lifting base 100 is provided with two inner sleeve columns 110 below each lifting gantry frame 200. The two sleeves 220 of each lifting gantry frame 200 are respectively set on both sides of the corresponding lifting mechanism 300, forming a stable four-point support structure. An auxiliary column 230 is also vertically arranged at the bottom of the lifting gantry frame 200, located above the lifting end of the lifting mechanism 300. The auxiliary column 230 effectively shortens the lever arm distance between the lifting mechanism 300 and the lifting gantry frame 200, significantly improving the stability and force transmission efficiency of the lifting process.

[0022] The upper end of the lifting gantry 200 is equipped with a spot-welded structure, employing a detachable temporary welding method to secure the steel components to be assembled. The weld points are specially treated so that they can be easily removed after assembly without damaging the main structure, ensuring the reusability of the components.

[0023] The bottom of the lifting base 100 is equipped with a height fine-adjustment bolt (not shown in the figure) to initially adjust the levelness of the base and ensure that the foundation for the installation of the jig is flat.

[0024] All components of the temporary assembly frame described in this embodiment are manufactured in the factory using hot-rolled H-beams, steel plates, and high-strength bolts. The inner column 110 and the base plate 112 are welded together to ensure perpendicularity, and all other connections are detachable and assembled using high-strength bolts. Each component is welded perpendicularly to the others, ensuring the stability and precision of the overall structure.

[0025] During construction, the jig is first leveled using the height adjustment bolts at the bottom of the lifting base 100 to ensure a flat and stable foundation. Then, the components to be assembled are hoisted onto the top of the lifting gantry 200 and temporarily secured using spot welding. Two symmetrically arranged lifting mechanisms 300 simultaneously lift the lifting gantry 200, precisely controlling the elevation and tilt angle of the components to quickly reach the designed position. After assembly, the components can be removed simply by cutting off the temporary welds, and the entire jig can be disassembled into multiple planar components by removing the connecting bolts 400, greatly facilitating transportation and storage.

[0026] The temporary assembly jig described in this embodiment adopts a modular sleeve structure combined with a lifting and adjustment mechanism. The inner sleeve column 110 and the sleeve 220 can slide relative to each other, and work in conjunction with the double lifting mechanism 300 to achieve efficient adaptation to different height and slope assembly requirements. All connecting parts are detachable, and the main components are made of conventional hot-rolled H-beams, steel plates, and high-strength bolts, which can be recycled in multiple projects, significantly improving material utilization efficiency and taking into account structural reliability, economy, and on-site applicability.

[0027] Furthermore, the jig in this embodiment is designed with operational safety and engineering adaptability in mind. The auxiliary column 230 directly transmits the lifting force to the main body of the gantry, and together with the stable base structure, effectively improves the anti-overturning ability and overall safety during construction. All components can be disassembled into planar units, greatly saving storage and logistics costs. The lifting mechanism 300 has good synchronization and fine-tuning capabilities, which can meet the precision assembly requirements of large-span, variable-elevation, and complex slope components, improving construction accuracy while expanding the application range of this jig in diverse engineering scenarios.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An adjustable temporary assembly jig, characterized in that, include: A lifting base (100) is provided with an inner sleeve column (110) at the upper end. The lifting gantry (200) includes a top crossbeam (210) and a sleeve (220) fixedly disposed at the bottom of the top crossbeam (210). The sleeve (220) is adapted to the inner sleeve column (110). The sleeve (220) is sleeved on the inner sleeve column (110) to form a relatively sliding sleeve structure. A lifting mechanism (300) is disposed on the lifting base (100), and its lifting part acts on the bottom of the lifting gantry (200) to lift and adjust the height of the lifting gantry (200) relative to the lifting base (100).

2. An adjustable temporary assembly jig as claimed in claim 1, wherein, There are two lifting mechanisms (300) and they are symmetrically arranged on the lifting base (100); there are two sets of sleeve structures, which are respectively connected to the two lifting gantry frames (200); the lifting ends of the two lifting mechanisms (300) act on the bottom of the two lifting gantry frames (200).

3. An adjustable temporary jig frame according to claim 2, wherein, Each of the lifting gantry (200) includes two sleeves (220); the corresponding lifting base (100) is provided with two inner sleeve columns (110) below each of the lifting gantry (200); the two sleeves (220) of each of the lifting gantry (200) are respectively provided on both sides of the corresponding lifting mechanism (300).

4. An adjustable temporary assembly jig according to claim 1 or 2, wherein The lifting base (100) includes a base beam (120), and the inner sleeve column (110) is vertically fixed to the base beam (120) by connecting bolts (400).

5. An adjustable temporary jig frame according to claim 4, wherein, The inner sleeve column (110) includes a first H-beam (111) and a base plate (112) welded to the lower end of the first H-beam (111). The base plate (112) is detachably connected to the base beam (120) by the connecting bolts (400).

6. An adjustable temporary assembly jig according to claim 1 or 2, wherein The bottom of the lifting gantry (200) is also vertically provided with an auxiliary column (230), which is located above the lifting end of the lifting mechanism (300).

7. An adjustable temporary jig frame according to claim 1, wherein The upper end of the lifting gantry (200) is provided with a spot welding structure for temporarily fixing the components to be assembled.

8. An adjustable temporary jig frame according to claim 5, wherein, A connection hole is provided on the base plate (112); the first H-beam (111) welded to the base plate (112) and the base plate (112) together form an accommodating space; the connection hole is located in the accommodating space, so that the protruding part of the connecting bolt (400) after installation is accommodated in the accommodating space.

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