Combined adjustable support frame and construction method thereof

Abstract

The application discloses a combined adjustable support frame, which comprises a main support frame and an adjustable support frame connected to the top of the main support frame, the main support frame and the adjustable support frame are connected to form a support structure, and a connecting assembly is further arranged between adjacent support structures; the main support frame comprises a plurality of groups of main support columns with different height specifications, and the plurality of groups of main support columns are detachably connected in sequence along the vertical direction through flange structures; the adjustable support frame is a sleeve pipe type structure, comprising an outer sleeve pipe and an inner sleeve pipe, a plurality of locking hole positions are arranged on the outer sleeve pipe along the height direction, and the inner sleeve pipe is inserted into locking pieces of different heights. Compared with the prior art, the application has the advantages that a combined adjustable support frame and a construction method thereof are provided, the modular main support frame and the adjustable support frame are combined in a discrete mode, quick and accurate matching of various target support heights is realized, and the production cost of the support frame and the on-site assembly difficulty are reduced.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a modular adjustable support frame and its construction method. Background Technology

[0002] In the construction of prefabricated buildings, steel structure buildings, and cast-in-place concrete structures, temporary support frames are key equipment for ensuring construction safety and project quality. The installation of components such as precast beams, precast slabs, and cast-in-place floor slabs all require temporary support systems to provide a stable load-bearing platform.

[0003] Currently, the support frames commonly used on construction sites have the following shortcomings: First, although existing modular adjustable support frames can achieve height adjustment, most of them adopt a design in which each support unit can be adjusted independently, resulting in complex structure and numerous components, leading to high manufacturing costs and low on-site assembly efficiency.

[0004] Secondly, some support frames use standard section combinations to achieve different heights, but the standard section height specifications are limited or the combination methods are not flexible enough, making it difficult to accurately match the diverse support height requirements of the construction site.

[0005] Third, the existing support frame adjustment mechanisms (such as gear racks, cylinders, threaded sleeves, etc.) have precise structures but high costs, and are inconvenient to maintain when used in large quantities.

[0006] Fourth, existing modular support frames lack a systematic approach to assembly, and construction workers often rely on experience for selection and erection, making it difficult to ensure the standardization and normalization of the support system.

[0007] Therefore, there is an urgent need for a modular adjustable support frame and its corresponding construction method that is simple in structure, low in cost, flexible in combination, and can systematically meet various support height requirements. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a modular adjustable support frame and its construction method, which aims to achieve rapid and accurate matching of various target support heights through the discrete combination of modular main support frame and adjustable support frame, while reducing the production cost of support frame and the difficulty of on-site assembly.

[0009] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a combined adjustable support frame, including a main support frame and an adjustable support frame connected to the top of the main support frame, wherein the main support frame and the adjustable support frame are connected to form a support structure, and a connecting component is also provided between adjacent support structures; The main support frame includes multiple sets of main support columns with different height specifications, and the multiple sets of main support columns are detachably connected in sequence along the vertical direction through a flange structure; The adjustable support frame is a sleeve-type structure, including an outer sleeve and an inner sleeve. The outer sleeve has multiple locking holes along the height direction. The inner sleeve can be adjusted and locked within a preset height range by inserting locking elements into the locking holes at different heights.

[0010] Preferably, the height specifications of the main support column include 5m, 2m and 1m.

[0011] Preferably, the preset height adjustment range of the adjustable support frame is 1m to 2m.

[0012] Preferably, the locking element is a load-bearing pin, and the outer sleeve has symmetrically distributed connecting holes for the load-bearing pin to be inserted at different height positions; The lower end face of the inner sleeve is provided with a concave arc-shaped pressure bearing surface, which is adapted to and abuts against the outer peripheral wall of the load-bearing pin.

[0013] Preferably, the main support column includes a column body and an upper connecting flange and a lower connecting flange respectively connected to the upper and lower ends of the column body; Both the upper and lower connecting flanges are provided with corresponding bolt holes.

[0014] Preferably, the adjustable support frame further includes an upper connecting flange located at the upper end of the inner sleeve and a lower connecting flange located at the lower end of the outer sleeve, and the upper and lower connecting flanges of the main support column have the same bolt hole distribution specifications as the upper and lower connecting flanges of the adjustable support frame.

[0015] Preferably, the connecting assembly includes connecting bolts, lateral supports, and diagonal supports, wherein the lateral supports and diagonal supports detachably fix adjacent support structures in the horizontal direction.

[0016] Another aspect of the present invention discloses a method for using a modular adjustable support frame, comprising the following steps: S1: Determine the target support height H; S2: Select the main support frame combination. Based on the target support height H and the preset height adjustment range of the adjustable support frame, determine the combination height of the main support column so that the total support height is equal to the target support height H. S3: Assemble the main support frame by connecting the selected main support columns in a vertically detachable manner through a flange structure to form a main support frame assembly; S4: Connect the adjustable support frame and connect the adjustable support frame to the top of the main support frame assembly; S5: Adjust the adjustable support frame to the target height, adjust the height of the inner sleeve so that the total support height reaches the target support height H, and then insert the locking piece into the corresponding locking hole to lock the support.

[0017] The advantages of this invention compared to the prior art are: The main support frame of the present invention is a rigid component with a fixed height, which does not require a complex internal adjustment mechanism. The adjustable support frame only requires a simple sleeve telescopic structure and a locking mechanism. The overall structure is simple and the manufacturing cost is significantly lower than that of a fully adjustable support frame. By combining three fixed-height main support frames (5m, 2m, 1m) with a 1-2m adjustable support frame, a variety of target support heights can be achieved (theoretically covering a wide range from 1m to tens of meters), meeting the needs of different construction scenarios. The main support frame has only three fixed specifications, while the adjustable support frame has a uniform specification, which facilitates standardized production and on-site inventory management in the factory, and reduces warehousing and logistics costs. The main support frames are connected to each other and to the adjustable support frames through flanges of uniform specifications, making on-site assembly quick and reliable without the need for complicated debugging. This invention also provides a systematic and highly modular selection method and construction steps, enabling construction personnel to quickly and accurately determine the combination scheme of the main support frame, avoiding the uncertainty and safety hazards caused by selection based on experience. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the main support frame.

[0019] Figure 2 This is a schematic diagram of the overall structure of the modular adjustable support frame.

[0020] Figure 3 This is a structural diagram of the adjustable support frame.

[0021] Figure 4 This is a schematic diagram of the openings in the outer sleeve of the adjustable support frame.

[0022] As shown in the figure: 1. Main support frame, 2. Adjustable support frame, 3. Outer sleeve, 4. Inner sleeve, 5. Locking hole, 6. Upper connecting flange, 7. Lower connecting flange, 8. Horizontal support, 9. Diagonal support. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Combined with appendix Figure 1-4 As shown, a combined adjustable support frame includes: a main support frame 1, which is a rigid support component with a fixed height, and its height specifications include three types: 5m, 2m and 1m; Adjustable support frame 2, the adjustable support frame 2 is a sleeve structure, with connecting holes symmetrically distributed at different height positions of its outer tube, and its height can be continuously adjusted within the range of 1m to 2m by inserting a load-bearing pin; A connecting assembly for detachably and fixedly connecting the main support frame 1 to the adjustable support frame 2, and for detachably and fixedly connecting multiple main support frames 1; The total support height of the combined adjustable support frame is determined by the following method: selecting one adjustable support frame 2 and selecting several main support frames 1, connecting the main support frames 1 and the adjustable support frame 2 vertically in sequence, so that the total support height is equal to the sum of the heights of each main support frame 1 plus the adjustment height of the adjustable support frame 2.

[0025] Main support frame 1 includes: The columns are rigid support columns. The horizontal support columns are connected by transverse supports 8 and diagonal supports 9, and the vertical support columns are connected by flanges. The upper connecting flange 6 is fixedly installed at the upper end of the column body; The lower connecting flange 7 is fixedly installed at the lower end of the column body; Both the upper connecting flange 6 and the lower connecting flange 7 are provided with corresponding bolt connection holes.

[0026] The adjustable support frame 2 includes: The outer tube 3 is provided with circular connecting holes at different height positions; The inner sleeve 4 has a concave arc-shaped bearing surface on its lower end face that is adapted to the outer peripheral wall of the load-bearing pin. The connecting components include connecting flanges, connecting bolts, lateral supports 8, and diagonal supports 9. The upper connecting flanges 6 and 7 of the main support frame 1 and the upper connecting flanges 6 and 7 of the adjustable support frame 2 have the same bolt hole distribution specifications to achieve interchangeable connections. The lateral supports 8 and diagonal supports 9 are made of the same type of steel pipes or sections to facilitate interchangeable connections. The columns of the main support frame 1 are made of round steel pipes, square steel pipes, or H-beams.

[0027] When using it, the following steps are included: Determine the required support height H at the bottom of the component to be supported based on the construction drawings. Based on the target support height H, select the quantity and specifications of the main support frame 1 according to the following rules: Assuming the adjustable support frame has an adjustable height range of h_min to h_max (h_min = 1m, h_max = 2m), then the combined height H_main of the main support frame should satisfy: H - h_max ≤ H_main ≤ H - h_min Where H_main = 5a + 2b + 1c, a, b, and c are the number of main support frames with specifications of 5m, 2m, and 1m respectively, a, b, and c are all non-negative integers, and a + b + c ≥ 1; Based on calculations, the scheme with a=3, b=1, and c=1 was selected. Choose combinations a, b, and c that make H_main fall within the above range, and prioritize the main support frame combination scheme with larger specifications and fewer components. Assemble the main support frame 1 by placing several selected main support frames vertically in sequence, and fix the upper connecting flange 6 and lower connecting flange 7 of adjacent main support frames through the connecting components to form a main support frame assembly; Connect the adjustable support frame and fix it to the upper end of the main support frame assembly via the connecting component; Adjust the adjustable support frame to the target height, adjust the height of the inner sleeve so that the total support height reaches the target support height H, and then insert the steel bar into the corresponding connecting hole to achieve support; when there are two or more main support frames, prioritize setting the main support frame with the larger height at the bottom and the main support frame with the smaller height at the top.

[0028] Example 1. Support height 19.4m.

[0029] Step 1: Determine the target support height H According to the construction drawings, the required support height H at the bottom of the component to be supported is 19.4.

[0030] Step 2: Select the main support frame assembly Based on the target support height H, the quantity and specifications of the main support frames are selected according to the following rules: Assuming the adjustable support frame has an adjustable height range of h_min to h_max (h_min = 1m, h_max = 2m), then the combined height H_main of the main support frame should satisfy: H - h_max ≤ H_main ≤ H - h_min Where H_main = 5a + 2b + 1c, a, b, and c are the number of main support frames with specifications of 5m, 2m, and 1m respectively, a, b, and c are all non-negative integers, and a + b + c ≥ 1; After calculation, the scheme with a=3, b=1, and c=1 was selected.

[0031] Step 3: Assemble the main support frame The selected main support frames are placed vertically in sequence, and the upper and lower connecting flanges of adjacent main support frames are fixedly connected by connecting components to form a main support frame assembly. Step 4: Connect the adjustable support frame The adjustable support frame is fixedly connected to the upper end of the main support frame assembly via a connecting component; Step 5: Adjust the adjustable support frame to the target height. Adjust the height of the inner sleeve to achieve the target support height of 19.4m, and then insert the steel bar into the corresponding connecting hole to achieve support; Furthermore, in step three, the main support frame with a greater height is preferentially placed at the bottom, and the main support frame with a smaller height is placed at the top.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A modular adjustable support frame, characterized in that: It includes a main support frame (1) and an adjustable support frame (2) connected to the top of the main support frame (1). The main support frame (1) and the adjustable support frame (2) are connected to form a support structure, and a connecting component is also provided between adjacent support structures. The main support frame (1) includes multiple sets of main support columns with different height specifications, and the multiple sets of main support columns are detachably connected in sequence along the vertical direction through a flange structure; The adjustable support frame (2) is a sleeve structure, including an outer sleeve (3) and an inner sleeve (4). The outer sleeve (3) has multiple locking holes (5) along the height direction. The inner sleeve (4) can be adjusted and locked within a preset height range by inserting locking parts into the locking holes (5) at different heights.

2. The combined adjustable support frame according to claim 1, characterized in that: The height specifications of the main support columns include 5m, 2m and 1m.

3. The combined adjustable support frame according to claim 1, characterized in that: The adjustable support frame (2) has a preset height adjustment range of 1m to 2m.

4. The combined adjustable support frame according to claim 1, characterized in that: The locking element is a load-bearing pin, and the outer sleeve (3) has symmetrically distributed connecting holes at different height positions for the load-bearing pin to be inserted; The lower end face of the inner sleeve (4) is provided with a concave arc-shaped bearing surface, which is adapted to and abuts against the outer peripheral wall of the load-bearing pin.

5. A combined adjustable support frame according to claim 1, characterized in that: The main support column includes a column body and an upper connecting flange (6) and a lower connecting flange (7) respectively connected to the upper and lower ends of the column body. Both the upper connecting flange (6) and the lower connecting flange (7) are provided with corresponding bolt connection holes.

6. A combined adjustable support frame according to claim 5, characterized in that: The adjustable support frame (2) also includes an upper connecting flange (6) connected to the upper end of the inner sleeve (4) and a lower connecting flange (7) connected to the lower end of the outer sleeve (3). The upper connecting flange (6) and lower connecting flange (7) of the main support column have the same bolt hole distribution specifications as the upper connecting flange (6) and lower connecting flange (7) of the adjustable support frame (2).

7. A combined adjustable support frame according to claim 1, characterized in that: The connecting assembly includes a lateral support (8) and a diagonal support (9), which detachably and securely connect adjacent support structures in the horizontal direction.

8. A method of using a modular adjustable support frame, based on the adjustable support frame (2) as described in any one of claims 1-7, characterized in that: Includes the following steps: S1: Determine the target support height H; S2: Select the main support frame (1) combination, and determine the combination height of the main support column according to the target support height H and the preset height adjustment range of the adjustable support frame (2) so that the total support height is equal to the target support height H; S3: Assemble the main support frame (1), and connect the selected multiple sets of main support columns in a vertically detachable manner through the flange structure to form the main support frame (1) assembly; S4: Connect the adjustable support frame (2) and connect the adjustable support frame (2) to the top of the main support frame (1) assembly; S5: Adjust the adjustable support frame (2) to the target height, adjust the height of the inner sleeve (4) so ​​that the total support height reaches the target support height H, and then insert the locking piece into the corresponding locking hole (5) to achieve support locking.

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