Adjustable support device for steel truss land assembly

Abstract

The utility model relates to a kind of adjustable support device for steel truss land assembly, belong to building engineering technical field, including the base, support column, column platform and support platform sequentially arranged from bottom to top, the support column is fixedly connected with base and column platform respectively, height-adjustable adjusting mechanism is equipped between the support platform and support column, the support platform is moved up and down by adjusting mechanism, and then the height of different steel truss is adapted, height control is realized, support platform is used for fine adjustment height, with the advantages of simple structure, convenient operation, strong stability and high reusability, construction cost and safety risk can be significantly reduced.

Description

Technical Field

[0001] This utility model relates to an adjustable support device for land assembly of steel trusses, belonging to the field of building engineering technology. Background Technology

[0002] A steel truss is a truss structure made of steel, widely used in construction, bridges, towers, and other fields. It is a triangular unit combination structure composed of multiple steel members connected by nodes, possessing advantages such as high strength, lightweight, and large span. Its structure includes top chords, bottom chords, and web members, typically made of angle steel, steel pipes, or H-beams. The connecting parts of the members are commonly welded, bolted, or riveted.

[0003] In the land-based assembly and construction of steel trusses, temporary support devices are core equipment for ensuring the positioning accuracy of truss segments, controlling structural deformation, and guaranteeing construction safety. Traditional support technologies mainly rely on the following two types of solutions: Fixed supports: These use precast concrete blocks or welded steel frames as the support base. These devices have a fixed height and are only suitable for assembly scenarios at a single elevation. If the height needs to be adjusted, the base must be recast or the welded steel frame cut, resulting in extended construction time and significant material waste.

[0004] Simple adjustable support: The common form is steel pipe scaffolding paired with adjustable brackets, where the height is adjusted by adding or removing scaffolding layers or rotating the bracket bolts. However, it has obvious drawbacks: Low adjustment accuracy: The height of each scaffolding layer is usually 500mm, and the bolt adjustment range is only ±50mm, which is difficult to meet the accuracy requirements when assembling large-span steel trusses. Insufficient stability: The scaffolding nodes are connected by fasteners, which are prone to micro-displacement under dynamic loads (such as hoisting impact and wind load), resulting in a decrease in the overall stiffness of the support system. Actual measurement data shows that its lateral deformation can reach L / 200 (L is the support height), which seriously affects the positioning accuracy of the truss. The operation is highly complex: height adjustment requires multiple people to work together to dismantle / reassemble the scaffolding, and relies on manual measurement and calibration. On average, a single adjustment takes 2-3 hours, significantly slowing down the construction progress. Therefore, developing an adjustable support device for land-based assembly of steel trusses is crucial. Utility Model Content

[0005] This utility model addresses the shortcomings of the prior art by providing an adjustable support device for land assembly of steel trusses. The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An adjustable support device for land assembly of steel trusses includes a base, a support column, a column platform, and a support platform arranged sequentially from bottom to top. The support column is fixedly connected to the base and the column platform respectively, and a height-adjustable adjustment mechanism is provided between the support platform and the support column.

[0006] Furthermore, the base is equipped with an anti-settlement structure that matches the application scenario.

[0007] Furthermore, the adjustment mechanism includes a sleeve fixedly installed above the support column. The support column is a hollow cylindrical structure. The sleeve is provided with a threaded screw. The top end of the screw is fixedly connected to the support platform, and the bottom end extends through the sleeve into the hollow of the support column.

[0008] Furthermore, the support platform is equipped with rotating handles for height adjustment on all four sides.

[0009] Furthermore, a scale is provided on the outer surface of the screw, the scale including precision graduation lines laser-engraved on the outer surface of the screw.

[0010] Furthermore, the precision scale line on the outer surface of the screw has a graduation value of one millimeter, and the outer surface of the screw has a linear array of several annular grooves with a depth of two millimeters, with a graduation value of ten millimeters between adjacent annular grooves.

[0011] Furthermore, the base has an anti-slip pad on its bottom surface and four adjustable feet arranged symmetrically in pairs below it.

[0012] Furthermore, the top surface of the support platform is provided with anti-slip textures for supporting the steel truss.

[0013] Furthermore, a number of fixedly connected support ribs are provided between the base and the support column.

[0014] Furthermore, the base is provided with anchor bolt holes for fixed connection.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. Height Adjustable: The combination of screw and sleeve enables the adjustment of support height to meet assembly requirements of different heights.

[0016] 2. High stability: The base is equipped with anti-slip pads and anchor bolts to ensure the stability of the support device during construction.

[0017] 3. Easy to operate: The design of the scale and screw makes height adjustment more precise and convenient, improving construction efficiency.

[0018] 4. Wide range of applications: It can be widely used in fields such as land assembly of steel trusses, bridge construction, and installation of large steel structures.

[0019] 5. The support platform is moved up and down by the adjustment mechanism to adapt to different steel truss heights and achieve height control. The support platform is used for fine-tuning the height and has the advantages of simple structure, convenient operation, strong stability and high reusability, which can significantly reduce construction costs and safety risks. Attached Figure Description

[0020] Figure 1 This is the main structural view of the present invention.

[0021] Figure 2 This is a top view of the structure of this utility model.

[0022] In the diagram, 1 is the support platform; 2 is the screw; 3 is the sleeve; 4 is the column platform; 5 is the support column; 6 is the support rib; 7 is the base; 8 is the anchor bolt hole; 9 is the rotating handle; and 10 is the scale. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] like Figures 1-2 As shown, an adjustable support device for land assembly of steel trusses includes a base 7, a support column 5, a column platform 4, and a support platform 1 arranged sequentially from bottom to top. The support column 5 is fixedly connected to both the base 7 and the column platform 4. A height-adjustable adjustment mechanism is provided between the support platform 1 and the support column 5. In application, the base 7 is fixedly connected to the bottom surface, and the adjustment mechanism drives the support platform 1 to move up and down, thereby adapting to different steel truss heights and achieving height control. The support platform 1 is used for fine-tuning the height. Multiple devices of this invention can be used together to achieve the steel truss support effect. It has the advantages of simple structure, convenient operation, strong stability, and high reusability, and can significantly reduce construction costs and safety risks.

[0025] The base 7 is equipped with an anti-settlement structure that matches the application scenario. A connecting part that matches the anti-settlement structure can be installed under the base 7. The anti-settlement structure is an existing technology applicable to different scenarios.

[0026] The adjustment mechanism includes a sleeve 3 fixedly installed above the support column 5. The support column 5 is a hollow cylindrical structure. The sleeve 3 contains a threaded screw 2. The top end of the screw 2 is fixedly connected to the support platform 1, and the bottom end extends through the sleeve 3 into the hollow interior of the support column 5. The support column 5 is made of Q345B steel, the screw 2 is a trapezoidal threaded rod made of Q345B steel, and the support platform 1 is made of square steel plate made of Q345B steel. The support platform 1 is raised and lowered by rotating the screw 2. The adjustment mechanism is a purely mechanical screw adjustment, which can achieve height control. The vertical load capacity of a single unit is ≥5T. It has the advantages of simple structure, convenient operation, strong stability, and high reusability, which can significantly reduce construction costs and safety risks.

[0027] The support platform 1 is equipped with rotating handles 9 around its perimeter for height adjustment.

[0028] The screw 2 has a scale 10 on its outer surface, which includes precision scale lines laser-engraved on the outer surface of the screw 2.

[0029] The precision scale line on the outer surface of the screw 2 has a graduation value of one millimeter, and several annular grooves with a depth of two millimeters are linearly arrayed on the outer surface of the screw 2, with a graduation value of ten millimeters between adjacent annular grooves.

[0030] The base 7 has anti-slip pads on its bottom surface to ensure the stability of the entire device. Four adjustable feet, symmetrically arranged in pairs, are located below the base 7. These feet are adjusted with M30 bolts, with a travel of ±20mm, to compensate for uneven ground. The top surface of the support platform 1 has anti-slip grooves to support the steel truss. The anti-slip grooves on the support platform 1 adapt to the truss angle and prevent slippage, effectively preventing the steel truss from sliding sideways.

[0031] Several support ribs 6 are fixedly connected between the base 7 and the support column 5 to ensure the stability of the support column 5. The base 7 is provided with anchor bolt holes 8 for fixed connection.

[0032] The base 7 is made of a circular steel plate with anti-slip pads to increase friction with the ground and ensure the stability of the support device. The base 7 is fixedly connected to the ground by anchor bolts passing through the anchor bolt holes 8; the support column 5 is a hollow cylindrical structure.

[0033] Operating procedures Step 1: Foundation Fixation Clean and level the assembly site, place the base 7 in the predetermined position, and secure it to the ground with anchor bolts to prevent the device from slipping.

[0034] Step 2: Height Adjustment The rotary adjustment mechanism drives the screw 2 to screw into or out of the internal threaded sleeve 3 at the top of the support column 5, and the adjustment amount can be observed through the scale 10. When screw 2 rises to the target height, lock the position of screw 2.

[0035] The present invention has the following advantages: 1. Height Adjustable: The combination of screw 2 and sleeve 3 enables the adjustment of the support height, adapting to assembly requirements of different heights.

[0036] 2. High stability: The base 7 is equipped with anti-slip pads and anchor bolts to ensure the stability of the support device during construction.

[0037] 3. Easy to operate: The design of the scale 10 and screw 2 makes height adjustment more precise and convenient, improving construction efficiency.

[0038] 4. Wide range of applications: It can be widely used in fields such as land assembly of steel trusses, bridge construction, and installation of large steel structures.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable support device for land assembly of steel trusses, characterized in that: It includes a base (7), a support column (5), a column platform (4) and a support platform (1) arranged sequentially from bottom to top. The support column (5) is fixedly connected to the base (7) and the column platform (4) respectively. The support platform (1) and the support column (5) are provided with a height-adjustable adjustment mechanism.

2. The adjustable support device for land assembly of steel trusses according to claim 1, characterized in that: The base (7) is provided with an anti-settlement structure that matches the application scenario.

3. The adjustable support device for land assembly of steel trusses according to claim 1, characterized in that: The adjustment mechanism includes a sleeve (3) fixedly installed above the support column (5). The support column (5) is a hollow cylindrical structure. The sleeve (3) is provided with a threaded screw (2). The top end of the screw (2) is fixedly connected to the support platform (1), and the bottom end extends through the sleeve (3) into the hollow of the support column (5).

4. The adjustable support device for land assembly of steel trusses according to claim 3, characterized in that: The support platform (1) is equipped with rotating handles (9) around its perimeter for height adjustment.

5. The adjustable support device for land assembly of steel trusses according to claim 3, characterized in that: The screw (2) has a scale (10) on its outer surface, which includes precision scale lines laser-engraved on the outer surface of the screw (2).

6. The adjustable support device for land assembly of steel trusses according to claim 5, characterized in that: The precision scale line on the outer surface of the screw (2) has a graduation value of one millimeter. Several annular slots with a depth of two millimeters are linearly arrayed on the outer surface of the screw (2). The graduation value between adjacent annular slots is ten millimeters.

7. The adjustable support device for land assembly of steel trusses according to claim 1 or 3, characterized in that: The base (7) has an anti-slip pad on its bottom surface and four adjustable feet arranged symmetrically in pairs below the base (7).

8. The adjustable support device for land assembly of steel trusses according to claim 1 or 3, characterized in that: The top surface of the support platform (1) is provided with anti-slip texture for supporting the steel truss.

9. The adjustable support device for land assembly of steel trusses according to claim 1 or 3, characterized in that: The base (7) and the support column (5) are provided with several fixedly connected support ribs (6).

10. The adjustable support device for land assembly of steel trusses according to claim 1 or 3, characterized in that: The base (7) is provided with anchor bolt holes (8) for fixed connection.

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