Adjustable foundation support structure for modular buildings

Abstract

The utility model discloses an adjustable foundation support structure for modular building. The structure comprises a bottom frame and a top frame, the bottom frame is provided with a lower support column, and the top frame is provided with an upper support column, upper and lower support columns are respectively provided with upper and lower sliding grooves, the upper and lower sliding grooves are connected through the adjusting part containing the upper sliding rod, the threaded rod and the lower sliding rod, and the threaded rod is provided with a nut; the bottom frame and the top frame are respectively provided with a limiting column and an upper guide sleeve, and the limiting column can slide in the upper guide sleeve. The structure realizes flexible height adjustment through the adjusting part, improves stability in combination with the limiting structure, is suitable for the hard ground height difference scene, is convenient to install and reliable in support.

Description

Technical Field

[0001] This article discusses adjustable foundation support structures for modular buildings. Background Technology

[0002] Modular buildings are widely used in temporary buildings, prefabricated housing, and other scenarios due to their advantages such as high construction efficiency and controllable costs. The basic support structure is the core component of modular buildings, which must bear the load of the building modules and ensure the levelness of the modules during installation.

[0003] The existing modular building foundation support structure has the following shortcomings: First, the height adjustment flexibility is poor, and most of them use fixed-length support components, which are difficult to adapt to the height differences of hard ground (such as cement ground); second, the stability after adjustment is insufficient, and the adjustment structure is prone to displacement due to load; third, the installation adaptability is poor, and it is difficult to adapt to the deviation of the preset installation position on the ground. Utility Model Content

[0004] This utility model aims to provide an adjustable foundation support structure for modular buildings, effectively solving the problems of inconvenient adjustment, insufficient stability, and poor installation adaptability of existing modular building foundation support structures. The specific solution is as follows:

[0005] An adjustable foundation support structure for modular buildings, comprising a base frame and a top frame;

[0006] The base frame is provided with multiple lower support columns, and the top frame is provided with a corresponding number of upper support columns. The upper support columns and lower support columns are respectively provided with upper sliding grooves and lower sliding grooves at their centers.

[0007] The upper slide groove and the lower slide groove are connected by an adjustment part, which includes an upper slide rod, a threaded rod and a lower slide rod. Multiple nuts are fitted on the threaded rod. The cross-sectional shape of the upper slide rod matches the upper slide groove, and the cross-sectional shape of the lower slide rod matches the lower slide groove.

[0008] Furthermore, the base frame includes a lower mounting plate, and a limiting post is provided in the middle of the lower mounting plate; the top frame includes an upper mounting plate, and an upper guide sleeve is provided in the middle of the upper mounting plate, and the limiting post can slide up and down in the upper guide sleeve; thereby providing guidance for the relative movement of the top frame and the base frame and ensuring the stability of the adjustment process.

[0009] Furthermore, the threaded rod is equipped with two sets of nut assemblies; the first nut, first washer, and second nut are located near the lower sliding rod, while the third nut, second washer, and fourth nut are located near the upper sliding rod; the cross-sectional areas of the first nut and fourth nut are larger than the cross-sectional areas of the lower and upper sliding grooves. This design allows the first nut to abut against the end of the lower support column, and the fourth nut to abut against the end of the upper support column, thereby limiting the adjustment mechanism.

[0010] Furthermore, both the first and second washers are elastic washers. Elastic washers have good elastic deformation capabilities and can generate continuous preload when the nut is tightened, effectively preventing the nut from loosening due to vibration and other factors, and enhancing the connection stability of the overall structure.

[0011] Furthermore, there are four lower support columns, located at the four corners of the limiting column. This distribution ensures that the supporting force is evenly distributed, and combined with the central positioning function of the limiting column, it improves the structure's balance and anti-overturning ability under load.

[0012] Furthermore, the lower mounting plate is provided with mounting ears on its four sides, and the surface of the mounting ears is provided with waist-shaped grooves. The design of the waist-shaped grooves allows for fine adjustment of the installation position within a certain range, which can adapt to the deviation of the preset mounting hole positions on the ground, reduce the positioning accuracy requirements during installation, and improve installation efficiency.

[0013] Furthermore, both the upper sliding rod and the lower sliding rod have hexagonal cross-sectional shapes. The hexagonal structure matches the shape of the corresponding sliding groove, which can effectively restrict the circumferential rotation of the upper sliding rod in the upper sliding groove and the lower sliding rod in the lower sliding groove, ensuring the stability of the force transmission direction during adjustment and preventing the adjustment part from shifting.

[0014] In actual installation, the lower mounting plate must first be fixed to a hard surface using several bolts. Then, the adjustment mechanism and top frame are assembled sequentially. After assembly, a level is used to determine the approximate height of the upper mounting plate.

[0015] Once the height is determined, the first to fourth nuts are tightened in sequence. The first nut abuts against the lower support column, and the fourth nut abuts against the upper support column, so that the adjustment part can accurately adjust and position the distance between the top frame and the bottom frame, thereby firmly fixing the upper mounting plate at the preset height.

[0016] If no further height adjustment is needed, the outer surface of the limiting column can be welded to the upper guide sleeve to further enhance the stability of the top frame height.

[0017] During the building construction phase, the foundation beams to be installed are placed on the foundation support structure, and the foundation beams are firmly connected to the upper surface of the mounting plate by welding, thus completing the foundation support for the modular building.

[0018] Beneficial effects:

[0019] Flexible adjustment: The height difference between the top frame and the bottom frame can be precisely adjusted by the cooperation of the threaded rod and the nut to adapt to the height differences of different hard ground surfaces; the cooperation of the upper sliding rod and the upper sliding groove, and the lower sliding rod and the lower sliding groove can limit circumferential rotation and prevent structural displacement after adjustment.

[0020] High stability: The sliding fit between the limit post and the upper guide sleeve can limit the horizontal displacement of the base frame and the top frame, and improve the overall anti-tilting ability; the two sets of nut combinations (including washers) can prevent the threaded rod from loosening through double locking, and ensure long-term load-bearing stability.

[0021] Easy installation: The mounting ears and waist-shaped grooves on the lower mounting plate can accommodate deviations in the ground mounting position, reducing the difficulty of installation and positioning; the overall structure adopts modular assembly, and installation and adjustment can be completed without complicated tools.

[0022] Wide adaptability: Multiple support columns and adjustable parts can evenly bear the load of modular buildings, making them suitable for various modular building scenarios such as temporary housing and prefabricated exhibition halls. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the use of an adjustable foundation support structure for modular buildings.

[0024] Figure 2 This is a schematic diagram of a single basic support structure;

[0025] Figure 3 This is a structural diagram of the base frame section;

[0026] Figure 4 This is an exploded view of the overall basic support structure;

[0027] Figure 5 This is a structural diagram of the top frame section;

[0028] Figure 6 It is an exploded view of the individual components of a single adjustable section;

[0029] 1. Foundation beam, 2. Base frame, 21. Lower mounting plate, 22. Lower support column, 221. Lower sliding groove, 23. Mounting lug, 24. Limiting column, 3. Adjustment part, 31. Lower sliding rod, 32. Threaded rod, 33. First nut, 34. First washer, 35. Second nut, 36. Third nut, 37. Second washer, 38. Fourth nut, 39. Upper sliding rod, 4. Top frame, 41. Upper mounting plate, 42. Upper support column, 421. Upper sliding groove, 43. Upper guide sleeve. Detailed Implementation

[0030] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0031] Example 1: As Figure 1-6 As shown, an adjustable foundation support structure for modular buildings includes a base frame 2, a top frame 4, and an adjustable part 3.

[0032] The base frame 2 includes a lower mounting plate 21, a limiting post 24 in the middle of the lower mounting plate 21, four lower support posts 22 at the four corners, and a sliding groove 221 in the center of the lower support post 22; mounting ears 23 are provided on the four sides of the lower mounting plate 21, and waist-shaped grooves are provided on the surface of the mounting ears 23.

[0033] The top frame 4 includes an upper mounting plate 41, an upper guide sleeve 43 in the middle of the upper mounting plate 41, a limiting post 24 that can slide up and down inside it, and four upper support posts 42 corresponding to the lower support post 22. The upper support post 42 has an upper sliding groove 421 in the center.

[0034] Adjustment part 3 includes an integrally connected upper slide rod 39, threaded rod 32, and lower slide rod 31. The upper slide rod 39 is hexagonal and is adapted to the upper slide groove 421; the lower slide rod 31 is hexagonal and is adapted to the lower slide groove 221.

[0035] The threaded rod 32 is fitted with two sets of nuts: a first nut 33, a first washer 34, and a second nut 35 near the lower sliding rod 31, and a third nut 36, a second washer 37, and a fourth nut 38 near the upper sliding rod 39. The cross-sectional area of ​​the first nut 33 and the fourth nut 38 is larger than the cross-sectional area of ​​the lower sliding groove 221 and the upper sliding groove 421, which can be used to limit the relative displacement between the adjusting part 3 and the support column.

[0036] Installation and adjustment process:

[0037] S1. Fix the base frame: Fix the lower mounting plate 21 to the cement ground with bolts through the waist-shaped groove of the mounting ear 23 to ensure that the base frame 2 is placed horizontally.

[0038] S2. Assembly and adjustment: Insert the sliding rod 31 into the sliding groove 221 of the lower support column 22, and pre-lock the first nut 33, the first washer 34, and the second nut 35 in sequence; insert the upper sliding rod 39 into the upper sliding groove 421 of the upper support column 42, and pre-lock the third nut 36, the second washer 37, and the fourth nut 38 in sequence.

[0039] S3. Height Adjustment: Place a level on the surface of the upper mounting plate 41 of a certain foundation support structure, and adjust the height of the remaining foundation support structures using the level.

[0040] S4. Adjust the height of the top frame 4 by rotating the fourth nut; after the height is determined, lock the second nut 35 with the first nut 33, the third nut 36 and the fourth nut 38, and achieve double anti-loosening by compensating for the gap through the elastic deformation of the washer.

[0041] S5. Fixing and bearing: If long-term use is required, the limiting column 24 and the upper guide sleeve 43 are welded and fixed; the foundation beam 1 of the modular building is fixed to the upper mounting plate 41 by welding, and the load is transferred to the base frame 2 through the upper support column 42, the adjustment part 3, and the lower support column 22, and is finally borne by the ground.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An adjustable foundation support structure for modular buildings, characterized in that, Includes the base frame and the top frame; The base frame is provided with multiple lower support columns, and the top frame is provided with a corresponding number of upper support columns. The upper support columns and lower support columns are respectively provided with upper sliding grooves and lower sliding grooves at their centers. The upper sliding grooves and lower sliding grooves are connected by an adjustment part, which includes an upper sliding rod, a threaded rod, and a lower sliding rod. Multiple nuts are fitted on the threaded rod. The cross-sectional shape of the upper sliding rod matches the upper sliding groove, and the cross-sectional shape of the lower sliding rod matches the lower sliding groove.

2. An adjustable foundation support structure for modular buildings according to claim 1, characterized in that, The base frame includes a lower mounting plate, and a limiting post is provided in the middle of the lower mounting plate; the top frame includes an upper mounting plate, and an upper guide sleeve is provided in the middle of the upper mounting plate, and the limiting post can slide up and down in the upper guide sleeve.

3. An adjustable foundation support structure for modular buildings according to claim 1 or 2, characterized in that, The threaded rod is equipped with two sets of nut assemblies; the first nut, first washer, and second nut are located near the lower slide rod, and the third nut, second washer, and fourth nut are located near the upper slide rod; the cross-sectional area of ​​the first nut and the fourth nut is larger than the cross-sectional area of ​​the lower slide groove and the upper slide groove.

4. An adjustable foundation support structure for modular buildings according to claim 3, characterized in that, Both the first washer and the second washer are elastic washers.

5. An adjustable foundation support structure for modular buildings according to claim 2, characterized in that, The number of lower support columns is four, and the four lower support columns are located at the four corners of the limiting column.

6. An adjustable foundation support structure for modular buildings according to claim 2, characterized in that, The lower mounting plate is provided with mounting ears on its four sides, and the surface of the mounting ears is provided with waist-shaped grooves.

7. An adjustable foundation support structure for modular buildings according to claim 4, characterized in that, Both the upper slide bar and the lower slide bar have hexagonal cross-sectional shapes.

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