Stair formwork supporting structure

The stair formwork support structure, which combines threaded columns and support pipes, solves the problem of inconsistent specifications for stair formwork supports at different heights, enabling rapid installation and easy storage of the supports and improving construction efficiency.

CN224200265UActive Publication Date: 2026-05-05ZHEJIANG TIANWEI CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TIANWEI CONSTR CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing stair formwork supports require different specifications for stair construction at different heights, leading to inconvenience in use, and difficulties in storage and transportation.

Method used

The system uses adjustable-length threaded columns and support tubes, which are connected by threads to form brackets of different specifications. Combined with support seats and bases, it enables quick installation and disassembly, adapting to stair formwork of different heights.

Benefits of technology

The simplified support specifications reduce storage and handling volume, facilitate unified management and operation, and improve construction efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224200265U_ABST
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Abstract

The utility model discloses a stair formwork supporting structure which comprises a plurality of threaded columns, a plurality of supporting pipes, a supporting seat and a base, the supporting seat is used for supporting a stair formwork and can be connected with the ends of the threaded columns, the base can be connected with the ends of the supporting pipes, the supporting pipes are connected with the threaded columns in a threaded mode, and one ends of the supporting pipes are arranged on the threaded columns in a sleeved mode in an open mode. A blocking part is arranged at the other end of the supporting pipe, the blocking part and the opening of the supporting pipe are mutually enclosed to form a connecting groove which can be in threaded fit with the end part of the threaded column, and a connecting piece which can be connected with the connecting groove is arranged on the base. The stair formwork support has the advantages that the stair formwork support is easy and convenient to use, supports of different specifications can be formed by splicing the threaded columns and the supporting pipes of the same specification so as to adapt to stair formworks of different heights, the needed size is smaller, and the stair formwork support is easy to store and carry and the like.
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Description

Technical Field

[0001] This utility model pertains to a support structure, specifically a stair formwork support structure. Background Technology

[0002] In existing building construction, staircase construction is generally achieved using staircase formwork support. Concrete is poured into the erected staircase formwork, and supports are used to support the staircase formwork. After the concrete has solidified, the formwork and supports are removed, and the staircase construction is completed.

[0003] There are many staircase designs in various buildings nowadays, and the height of the staircase formwork also varies. In the existing technology, adjustable-length supports are usually used to stabilize the staircase formwork to accommodate the pouring of staircases of different heights. Since staircases usually have a certain height, the required supports are also long, and different height staircases require different height supports. The demand for supports of different specifications is large, and the specifications are not consistent, making them difficult to store and transport, and causing inconvenience in use and installation. Utility Model Content

[0004] The purpose of this utility model is to provide a stair formwork support structure that solves the problems of inconvenience in use, inconsistent specifications, increased demand for different specifications of supports, and difficulty in storage and transportation of existing technologies.

[0005] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a stair formwork support structure, including multiple threaded columns, multiple support pipes, a support seat for supporting stair formwork and connectable to the end of the threaded column, and a base connectable to the end of the support pipe. The support pipe is threadedly connected to the threaded column. One end of the support pipe is open and sleeved on the threaded column. The other end of the support pipe is provided with a blocking part. The blocking part and the opening of the support pipe surround each other to form a connecting groove that can be threadedly engaged with the end of the threaded column. The base is provided with a connector that can be connected to the connecting groove.

[0006] As a further preferred technical solution of this utility model, a radially arranged through hole is provided on the upper side wall of the threaded column. When the threaded column is connected to the support seat or the support pipe, the through hole is exposed and located at the uppermost end of the threaded column.

[0007] As a further preferred technical solution of this utility model; one end of the support seat is provided with a contact surface that can abut against the stair template, and the other end of the support seat is provided with a connecting part, which is rotatably connected to the fixed cylinder, and the fixed cylinder can be sleeved on the end of the threaded column and threadedly connected to the threaded column.

[0008] As a further preferred technical solution of this utility model, the connecting member includes a protrusion threadedly connected to the connecting groove and an annular driving part disposed around the periphery of the support tube, wherein the lower end of the annular driving part is provided with a connecting section connected to the lower end of the protrusion.

[0009] As a further preferred technical solution of this utility model; the base is provided with a fixing groove that cooperates with the connecting piece, the lower end of the protruding column is provided with a rotating column that passes downward through the bottom of the fixing groove, the side wall of the rotating column is provided with a rotating bearing, and the bottom surface of the fixing groove is provided with an annular limiting part surrounding the rotating bearing.

[0010] As a further preferred technical solution of this utility model, the bottom of the connecting section is provided with an annular slider located in the fixing groove, and the bottom surface of the fixing groove is provided with an annular slide rail that cooperates with the annular slider.

[0011] Therefore, this utility model has the advantages of being easy to use, being able to form supports of different specifications by splicing together threaded columns and support pipes of the same specifications to adapt to stair formwork of different heights, and having a smaller required volume, making it easy to store and transport. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 Structural sectional view;

[0014] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the image. Detailed Implementation

[0015] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-2As shown, a stair formwork support structure includes multiple threaded columns 1, multiple support pipes 2, support seats 3 for supporting stair formwork and connectable to the ends of the threaded columns 1, and bases 4 connectable to the ends of the support pipes 2. This support structure uses different numbers of threaded columns 1 and support pipes 2 combined to form support structures of different lengths depending on the height of the staircase. The support seats 3 contact the bottom surface of the stair formwork to support staircases of different heights, forming the support structure. The base 4 increases the contact area between the bottom of the support structure and the ground, improving the support stability. The support pipes 2 are threadedly connected to the threaded columns 1. One end of the support pipe 2 is open and sleeved on the threaded column 1, while the other end of the support pipe 2 has a blocking part 21. The blocking part 21 and the opening of the support pipe 2 enclose each other to form a threaded connection with the end of the threaded column 1. The connecting groove 22 allows a single threaded post 1 to be threadedly connected to a single support pipe 2. The relative rotation of the threaded post 1 and the support pipe 2 allows for length adjustment to accommodate stairs of different heights. When connecting multiple threaded posts 1, one end of the support pipe 2 is open and connected to the threaded post 1, while the connecting groove 22 at the other end of the support pipe 2 can connect to another threaded post 1. The other end of the threaded post 1 can then be connected to another support pipe 2. These can be connected sequentially as needed to form support structures of different lengths. All threaded posts 1 and support pipes 2 have the same specifications, allowing for direct disassembly during transport and storage. This shortens the length and reduces the volume, facilitating orderly storage and making transport and handling easier. The base 4 is equipped with a connector 41 that can connect to the connecting groove 22. The base 4 is connected to the bottom of the support pipe 2 at the lowest end via the connector 41, enabling quick and efficient installation.

[0017] like Figure 1-2 As shown, the threaded column 1 has a radially arranged through hole 11 on the upper side wall. When the threaded column 1 is connected to the support seat 3 or the support pipe 2, the through hole 11 is exposed and located at the uppermost end of the threaded column 1. The through hole 11 allows workers to use external steel bars, iron rods or other hard columnar tools to assist in rotating the threaded column when installing the support structure in actual scenarios, which increases the convenience of operation and facilitates quick length adjustment. After the support seat 3 and the base 4 are installed, the through hole 11 is still exposed to the outside, ensuring that the length of the threaded column 1 and the support pipe 2 can always be adjusted.

[0018] like Figure 1-2As shown, one end of the support seat 3 is provided with a contact surface 31 that can abut against the stair formwork, and the other end of the support seat 3 is provided with a connecting part 32. The connecting part 32 is rotatably connected to the fixing cylinder 33. The fixing cylinder 33 can be sleeved on the end of the threaded column 1 and threadedly connected to the threaded column 1. During installation, the support seat 3 is threadedly fixed to the top of the uppermost threaded column 1 through the fixing cylinder 33. The support seat 3 can rotate relative to the fixing cylinder 33 through the connecting part 32 to adapt to the tilt angle of the supported stair formwork. The inclined support seat 3 and the contact surface 31 maintain stable support for the stair formwork. The support seat 3 can be quickly disassembled and assembled through the fixing cylinder 33 for easy handling and storage.

[0019] like Figure 2-3As shown, the connector 41 includes a protrusion 411 threadedly connected to the connecting groove 22 and an annular driving part 412 surrounding the support pipe 2. The protrusion 411 can quickly connect the base 4 to the connecting groove 22 at the bottom of the support pipe 2. The base 4 increases the contact area between the support structure and the ground, enhancing the stability of the support structure. During installation, the annular driving part 412 is located around the support pipe 2, allowing for quick positioning of the connection between the support pipe 2 and the base 4, making installation faster and more efficient. The lower end of the annular driving part 412 is provided with a connecting section 413 connected to the lower end of the protrusion 411. 3. Connect the annular drive part 412 and the protrusion 411 so that the annular drive part 412 and the protrusion 411 form a whole, so that the annular drive part 412 can be rotated externally to drive the protrusion 411 to rotate synchronously. The protrusion 411 can be easily tightened into the connecting groove 22. The base 4 is provided with a fixing groove 42 that cooperates with the connector 41. The fixing groove 42 limits and fixes the annular drive part 412 and the protrusion 411. The lower end of the protrusion 411 is provided with a rotating column 414 that passes downward through the bottom of the fixing groove 42. A rotating bearing 415 is provided on the side wall of the rotating column 414. The bottom surface of the fixing groove 42 is provided with a ring-shaped shaft. The annular limiting part 421 on the periphery of the bearing 415 fixes the rotating shaft 415 to the rotating column 414. The annular limiting part 421 positions the rotating shaft 415 and the rotating column 414, enabling rapid assembly and ensuring structural stability. This allows operation of the annular drive part 412, rotating it to rotate the protruding column 411, facilitating its quick screwing into the connecting groove 22. During actual installation, the threaded column 1 and the support tube 2 can be rotated via the rotating column 414 and the rotating bearing 415 to quickly adjust the orientation angle of the support seat 3, thus facilitating the adjustment of the support seat 3's connection. The contact surface 31 abuts against the bottom surface of the stair template. The bottom of the connecting section 413 is provided with an annular slider 416 located in the fixing groove 42. The bottom surface of the fixing groove 42 is provided with an annular slide rail 422 that cooperates with the annular slider 416. The cooperation of the annular slider 416 and the annular slide rail 422 can increase the support strength of the connecting section 413 and maintain the stability of the support structure, ensure the stability of the annular drive part 412 and the protrusion 411, avoid displacement that would affect the vertical support stability of the support structure, and at the same time ensure the stable rotation of the annular drive part 412 and the protrusion 411, thereby enhancing the support stability of the support structure.

[0020] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A staircase formwork support structure, characterized in that: It includes multiple threaded columns (1), multiple support pipes (2), a support seat (3) for supporting stair formwork and connected to the end of the threaded column (1), and a base (4) connected to the end of the support pipe (2). The support pipe (2) is threadedly connected to the threaded column (1). One end of the support pipe (2) is open and sleeved on the threaded column (1). The other end of the support pipe (2) is provided with a blocking part (21). The blocking part (21) and the opening of the support pipe (2) surround each other to form a connecting groove (22) that can be threadedly engaged with the end of the threaded column (1). The base (4) is provided with a connector (41) that can be connected to the connecting groove (22).

2. The staircase formwork support structure according to claim 1, characterized in that: The threaded column (1) has a radially arranged through hole (11) on the upper side wall. When the threaded column (1) is connected to the support seat (3) or the support pipe (2), the through hole (11) is exposed and located at the uppermost end of the threaded column (1).

3. The staircase formwork support structure according to claim 1, characterized in that: One end of the support base (3) is provided with a contact surface (31) that can abut against the stair template, and the other end of the support base (3) is provided with a connecting part (32). The connecting part (32) is rotatably connected to the fixed cylinder (33). The fixed cylinder (33) can be sleeved on the end of the threaded column (1) and threadedly connected to the threaded column (1).

4. The staircase formwork support structure according to claim 1, characterized in that: The connector (41) includes a protrusion (411) threadedly connected to the connecting groove (22) and an annular drive part (412) surrounding the support tube (2). The lower end of the annular drive part (412) is provided with a connecting section (413) connected to the lower end of the protrusion (411).

5. A staircase formwork support structure according to claim 4, characterized in that: The base (4) is provided with a fixing groove (42) that cooperates with the connector (41). The lower end of the protrusion (411) is provided with a rotating column (414) that passes downward through the bottom of the fixing groove (42). The rotating column (414) is provided with a rotating bearing (415) on its side wall. The bottom surface of the fixing groove (42) is provided with an annular limiting part (421) that surrounds the rotating bearing (415).

6. A staircase formwork support structure according to claim 5, characterized in that: The bottom of the connecting section (413) is provided with an annular slider (416) located in the fixing groove (42), and the bottom surface of the fixing groove (42) is provided with an annular slide rail (422) that cooperates with the annular slider (416).