A prefabricated stair on-site support mechanism

Abstract

The application provides a prefabricated stair site support mechanism and relates to the field of building construction. The prefabricated stair site support mechanism comprises an I-shaped steel, a scaffold, a plurality of inclined blocks and a plurality of threaded pipes. The inclined blocks directly support the prefabricated stair. The I-shaped steel is connected with the inclined blocks by spot welding at the top. The I-shaped steel is connected with the threaded pipes at the bottom. The I-shaped steel has a bending strength. The placing direction of the I-shaped steel is the same as the tread direction of the prefabricated stair. The threaded pipes are inserted into the scaffold. The inclined blocks transmit the load to the I-shaped steel. The I-shaped steel absorbs the load and redistributes the total load to the threaded pipes and the scaffold. The mechanism has good stability and support strength by using simple structure and low-cost materials.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to a prefabricated staircase on-site support mechanism. Background Technology

[0002] Currently, after the prefabricated stairs are manufactured, they need to be transported to the construction site for installation. During the installation process, support mechanisms are usually needed to support the prefabricated stairs to ensure their stability. As an indispensable device in the installation process of prefabricated stairs, the support equipment plays a crucial role.

[0003] For related technologies, please refer to Chinese Utility Model Patent No. CN214739390U. This utility model discloses a prefabricated staircase that is easy to install, including a prefabricated staircase, a support mechanism, a base, columns, support rods, a limiting mechanism, a fine-tuning mechanism, a movable groove, a sliding sleeve, a compression spring, a push rod, a sliding plate, and a lead screw. Multiple columns and support rods are equidistantly supporting and abutting one end of the prefabricated staircase, and the length of the support rods and columns can be adjusted and limited by the limiting mechanism.

[0004] However, existing precast stair support mechanisms still have the following shortcomings: the support mechanism only bears the load of the staircase by the support rods, and cannot distribute the load evenly, resulting in poor overall stability of the mechanism. Utility Model Content

[0005] This application provides a prefabricated staircase on-site support mechanism, which solves the problem that the support mechanism cannot evenly distribute the load, resulting in poor overall stability of the mechanism.

[0006] The technical solution adopted in the embodiments of this application is as follows: In a first aspect, embodiments of this application provide a prefabricated staircase on-site support mechanism, which includes I-shaped steel, scaffolding, a plurality of ramp blocks, and a plurality of threaded pipes, wherein... The ramp blocks directly support the prefabricated stairs. The I-shaped steel is spot-welded to the ramp block at the top and connected to a threaded pipe at the bottom. The I-shaped steel has bending strength, and its placement direction is the same as that of the precast stair treads. The threaded pipe is inserted into the scaffolding. The ramp block transfers the load to the I-beam, which absorbs the load and redistributes the combined load to the threaded pipe and scaffolding below.

[0007] By adopting the above technical solution, the ramp block directly supports the prefabricated staircase and transfers the load to the I-beam. The I-beam absorbs the load and redistributes it to the threaded pipe and scaffolding below. The I-beam provides an ideal platform for the installation of the ramp block and threaded pipe, thus achieving the effect of connecting the upper and lower parts of the support process and improving the stability of the support structure.

[0008] In one alternative implementation, the bottom of the threaded tube is provided with a leveling nut, which is used to control the length of the threaded tube extending from the scaffold.

[0009] By adopting the above technical solution, the threaded rod can be moved up and down within the threaded seat by rotating the leveling nut, thereby driving the threaded tube to achieve fine adjustment of height. This achieves the effect of adapting to scaffolding of different heights and compensating for the negative impact of uneven ground.

[0010] In one alternative implementation, the leveling nut has protrusions on both sides, which are used to make it easier to rotate the leveling nut.

[0011] By adopting the above technical solution, the leveling nut has protrusions on both sides. When using it, the operator only needs to move the protrusions to rotate the leveling nut, which achieves the effect of convenient use.

[0012] In one alternative implementation, an L-shaped plate is provided above the threaded pipe, and the L-shaped plate is welded to the I-shaped steel.

[0013] By adopting the above technical solution, the L-shaped plate increases the contact area with the I-shaped steel, which can better support the I-shaped steel and achieve a more stable support effect.

[0014] In one alternative implementation, the ramp block is designed to be hollow.

[0015] By adopting the above technical solution, the ramp block is hollow inside, which reduces manufacturing costs and the weight of the mechanism, achieving the effect of lightweight design and cost reduction.

[0016] In one alternative implementation, the slope surface of the ramp block is provided with anti-slip texture.

[0017] By adopting the above technical solution, the anti-slip texture on the slope surface of the sloping block enhances the friction of the slope surface, thereby achieving the effect of increasing friction and reducing sliding deviation.

[0018] In one alternative implementation, the ramp block is a triangular ramp.

[0019] By adopting the above technical solution, the ramp block is a triangular ramp. The triangular structure has stability, and the ramp of this shape can play a stable supporting role, thus achieving a solid support function.

[0020] In one alternative implementation, the ramp block, I-beam, threaded pipe and scaffolding form a support group, and multiple groups are provided.

[0021] By adopting the above technical solution, multiple sets of mechanisms can be used to support the prefabricated stairs, achieving better support for the prefabricated stairs and preventing them from collapsing.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Simple structure and low cost; 2. The I-beam absorbs and redistributes the load on the entire mechanism, thus improving the stability of the mechanism; 3. I-beams and threaded pipes are made of carbon steel, achieving a lightweight design. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the on-site support mechanism for prefabricated stairs.

[0024] Figure 2 yes Figure 1 Enlarged schematic diagram of the threaded tube section.

[0025] Explanation of reference numerals in the attached drawings: 1. Ramp block; 2. I-beam; 3. Threaded pipe; 4. Leveling nut; 5. Scaffolding; 6. L-shaped plate. Detailed Implementation

[0026] The present application will be further described in detail below with reference to all the accompanying drawings in the embodiments of the present application.

[0027] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection. It should be understood that when component A is fixedly connected to component C via component B, changes in the relative positional relationship due to deformation of components A, B, and C are permissible. The integrated structure obtained by the two components through a one-piece molding process means that during the formation of one of the two components, that component is connected to the other component, without requiring further processing (such as bonding, welding, snap-fit ​​connections, or screw connections) to connect the two components.

[0028] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "side", etc., are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0029] The term "multiple" refers to at least two. The term "more than" includes the stated number. The term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0030] This application discloses an on-site support mechanism for prefabricated stairs.

[0031] Reference Figure 1 and Figure 2 A prefabricated staircase on-site support mechanism includes two ramp blocks 1. Each ramp block 1 includes a slope surface, a slope bottom, and a side connecting surface. Both the slope surface and the slope bottom are fixedly connected to the side connecting surface. The slope surface and the slope bottom do not intersect, and the non-intersecting part forms a rectangular opening. The slope bottom is a horizontal surface.

[0032] Ramp block 1 is a triangular ramp. The triangular structure has extremely high stability, and the ramp block of this shape can play a stable supporting role.

[0033] The ramp block 1 is formed by welding four steel plates together. The welding permanently connects the steel plates to form an integral structure. The ramp block 1 made by welding has good load-bearing capacity.

[0034] The ramp block 1 is hollow inside. The hollow and rectangular opening design reduces the material used in the ramp block 1, reducing costs while achieving a lightweight design, and the supporting function of the ramp block 1 is almost unaffected.

[0035] The support structure also includes I-shaped steel 2, which is placed in the same direction as the precast stair treads.

[0036] I-beam 2 is made of carbon steel. Carbon steel is a low-cost material, and its strength and hardness can be adjusted within a certain range by heat treatment and adjusting the carbon content, thus combining cost-effectiveness and practicality.

[0037] The I-shaped steel 2 has several circular holes in its middle. This design reduces the amount of material used in the I-shaped steel 2 while ensuring its supporting function, which is in line with the concept of lightweight design and reduces costs.

[0038] The I-shaped steel 2 and the ramp block 1 are connected by spot welding. A single spot weld typically takes only milliseconds to seconds, resulting in extremely high connection efficiency. Spot welding requires no filler material, welding rods, welding wires, flux, or shielding gas. The operation is simple, requires less reliance on highly skilled welders, and further reduces costs. After spot welding, the I-shaped steel 2 can be removed for separation. Alternatively, the I-shaped steel 2 and ramp block 1 can be detachably connected using bolts and nuts.

[0039] The I-shaped steel 2 is supported by two threaded pipes 3 at the bottom. The top of the threaded pipes 3 is equipped with an L-shaped plate 6. The ground and sides of the L-shaped plate 6 are in contact with the I-shaped steel 2, which increases the contact area. The L-shaped plate 6 is welded to the bottom of the I-shaped steel 2, which makes the structure stable and provides good support.

[0040] The bottom of the threaded tube 3 is equipped with a leveling nut 4, which is threadedly connected to the threaded tube 3. Rotating the leveling nut 4 causes the threaded tube 3 to move up and down, achieving fine adjustment of the height. This can be adapted to scaffolding 5 of different heights or to compensate for height differences caused by uneven ground.

[0041] Scaffolding 5 provides basic support and is located at the bottom of the structure. Scaffolding 5 consists of two uprights, one horizontal bar, and three diagonal braces. The diagonal braces form an angle of 45°-60° with the ground. Two of the diagonal braces are fixed to the two uprights with clips, and the two diagonal braces form a triangle with the ground, which has good stability. The remaining diagonal brace is connected to one of the uprights, and the horizontal bar is fixedly connected to the two uprights, which together bear the load.

[0042] The two ramp blocks 1, I-shaped steel 2, two threaded pipes 3, and scaffolding 5 are arranged as a group, and there are two groups in total. The height of scaffolding 5 in one group is lower than that in the other group, which is used to support the lower part of the prefabricated staircase. The two groups work together to support the prefabricated staircase, ensuring better support.

[0043] The implementation principle of one embodiment of this application is as follows: the ramp block 1 is attached to the prefabricated staircase and the load of the prefabricated staircase is transferred to the I-shaped steel 2.

[0044] The I-beam 2 has good torsional stiffness and lateral stiffness, preventing the two upper ramp blocks 1 from displacing relative to each other due to uneven force, and ensuring that the two lower threaded pipes 3 always remain in the correct relative position and will not tilt inward or outward due to lateral force.

[0045] Furthermore, the I-shaped steel 2 absorbs the load transmitted from the ramp block 1 and redistributes it to the threaded pipe 3 and scaffold 5 below, avoiding force concentration and improving the overall stability of the mechanism.

[0046] The scaffolding 5, threaded pipe 3, I-beam 2 and ramp block 1 support the components above in sequence, forming a hierarchical support structure. After the prefabricated stairs are installed, the part below the I-beam 2 can be easily separated.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0048] It should be noted that all the above-mentioned figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application. The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated staircase on-site support mechanism, characterized in that: Includes I-beams (2), scaffolding (5), several ramp blocks (1), and several threaded pipes (3), among which, The ramp block (1) directly supports the prefabricated staircase. The I-shaped steel (2) is spot-welded to the ramp block (1) at the top and connected to the threaded pipe (3) at the bottom. The I-shaped steel (2) has bending strength in its I-shaped section. The I-shaped steel (2) is placed in the same direction as the precast stair tread. The threaded pipe (3) is inserted into the scaffolding (5). The ramp block (1) transfers the load to the I-beam (2), which absorbs the load and redistributes the total load after convergence to the threaded pipe (3) and scaffold (5) below.

2. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: The bottom of the threaded pipe (3) is provided with a leveling nut (4), which is used to control the length of the threaded pipe (3) extending from the scaffold (5).

3. The prefabricated staircase on-site support mechanism as described in claim 2, characterized in that: The leveling nut (4) has protrusions on both sides, which are used to rotate the leveling nut (4) more conveniently.

4. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: An L-shaped plate (6) is provided above the threaded pipe (3), and the L-shaped plate (6) is welded to the I-shaped steel (2).

5. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: The ramp block (1) is designed to be hollow inside.

6. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: The slope surface of the ramp block (1) is provided with anti-slip texture.

7. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: The ramp block (1) is a triangular ramp, and the slope of the ramp surface matches the slope of the prefabricated staircase.

8. The prefabricated staircase on-site support mechanism as described in claim 1, characterized in that: The ramp block (1), I-beam (2), threaded pipe (3) and scaffold (5) form a support group, and multiple groups are provided.

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