Rotatable steel template in narrow space

By designing a rotatable steel formwork and using high-strength bolts and a rotating shaft for connection, the problem of limited formwork installation and dismantling in confined spaces was solved, enabling convenient dismantling and installation of the formwork.

CN223922619UActive Publication Date: 2026-02-17中铁二十四局集团上海铁建工程有限公司 +1
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Patent Information

Application Number
CN202520467149.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-17
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

In confined spaces, the installation and dismantling of traditional steel formwork is restricted, making it difficult to achieve effective installation and removal of the formwork.

Method used

A rotatable steel formwork composed of a first side mold, a second side mold, and a third side mold was designed. The formwork is rotatable through high-strength bolt connections and a rotating shaft, allowing for the step-by-step dismantling of the inner and outer formwork and overall hoisting.

Benefits of technology

It enables the installation and dismantling of formwork in confined spaces, with a simple structure, convenient operation, and meets construction requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotatable steel formwork in a narrow space, which comprises a first side formwork, a second side formwork and a third side formwork, the first side formwork, the second side formwork and the third side formwork enclose to form a closed structure for pouring a pier column, and the closed structure is arranged in the narrow space of a poured wall. The number of the first side mold is one, the number of the second side mold is two, the number of the third side mold is one, the two ends of the first side mold are fixedly connected with one ends of the two second side molds respectively, and the other ends of the two second side molds are rotationally connected to the two ends of the third side mold respectively. The utility model has the advantages that the structure is simple, and the operation is convenient; and the mounting and dismounting of the lower template in a narrow space are realized.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel formwork, especially a rotatable steel formwork under narrow space. BACKGROUND

[0002] Steel formwork (also known as non-removable formwork net) can replace wooden formwork, significantly reducing the exclusion of pore water pressure and bubbles in the concrete pressure of traditional formwork such as wood, plywood, or steel plate; after the steel formwork structure is poured into concrete, an ideal rough interface is formed. No roughing operation is needed to enter the next process construction. Due to the division of project sections and other reasons, the surrounding wall has been poured when the pier column is constructed, leaving a narrow operation space for pier column construction, and the formwork is limited.

[0003] Therefore, a rotatable steel formwork under narrow space that can solve the above problems is needed. SUMMARY

[0004] The utility model discloses a rotatable steel formwork under narrow space, which is composed of a first side form, a second side form and a third side form, the first side form is an inner steel formwork, the second side form and the third side form form an outer steel formwork, a rotating shaft is added near the restricted position, after the reinforcement is bound, the inner steel formwork is installed first, then the outer steel formwork is installed, the inner and outer steel formworks are connected by high-strength bolts, when disassembling, the high-strength bolts are loosened, the rotatable part of the inner steel formwork is selected outward, the outer steel formwork is disassembled, and then the whole is lifted and transported, the pier column construction is completed, and the installation and disassembly of the formwork under narrow space are realized.

[0005] The utility model discloses a rotatable steel formwork under narrow space, which is composed of a first side form, a second side form and a third side form, the first side form is an inner steel formwork, the second side form and the third side form form an outer steel formwork, a rotating shaft is added near the restricted position, after the reinforcement is bound, the inner steel formwork is installed first, then the outer steel formwork is installed, the inner and outer steel formworks are connected by high-strength bolts, when disassembling, the high-strength bolts are loosened, the rotatable part of the inner steel formwork is selected outward, the outer steel formwork is disassembled, and then the whole is lifted and transported, the pier column construction is completed, and the installation and disassembly of the formwork under narrow space are realized.

[0006] A rotatable steel formwork under narrow space, comprising a first side form, a second side form and a third side form, the first side form, the second side form and the third side form form an enclosed structure for pouring a pier column, the enclosed structure is arranged in a narrow space of a poured wall, the number of the first side form, the second side form and the third side form is one, two and one respectively, the two ends of the first side form are fixedly connected with one end of two second side forms respectively, and the other end of the two second side forms is rotatably connected with the two ends of the third side form.

[0007] The first side form is composed of one straight segment and two arc segments, and the two arc segments are arranged at the two ends of the straight segment respectively.

[0008] The second side form is composed of one straight segment and one arc segment.

[0009] The third side form is composed of one straight segment.

[0010] The first side mold and the second side mold are fixedly connected through high-strength bolts.

[0011] The second side mold and the third side mold are rotationally connected through a rotating shaft.

[0012] The utility model discloses the advantages are: simple structure, convenient operation, realize the template's installation and removal under narrow space. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure diagram of the utility model rotatable steel formwork;

[0014] As Figure 1 Indicated, the figure mark respectively shows:

[0015] Wall 1, pier column 2, first side mold 3, second side mold 4, third side mold 5, rotating shaft 6, high-strength bolt 7. DETAILED DESCRIPTION

[0016] The utility model features and other related features are further explained in detail in the following by embodiment in conjunction with the drawings, so that the understanding of the same industry technical personnel is facilitated:

[0017] Embodiment: as Figure 1 Indicated, this embodiment relates to a kind of rotatable steel formwork under narrow space, it mainly includes first side mold 3, second side mold 4 and third side mold 5, first side mold 3, second side mold 4 and third side mold 5 are enclosed to form the closed structure for pouring pier column 2, closed structure is located in the narrow space of the wall 1 that has been poured.In, two arc segments are respectively located at the two ends of straight section;Second side mold 4 is composed of a straight section and an arc section;Third side mold 5 is composed of a straight section.The number of first side mold 3, second side mold 4 and third side mold 5 is one, two and one respectively, the two ends of first side mold 3 are fixedly connected with the one end of two second side molds 4 respectively, the arc section of first side mold 3 and the straight section of second side mold 4 are fixedly connected through high-strength bolt 7, the other end of two second side molds 4 is rotationally connected to the two ends of third side mold 5 respectively, the arc section of second side mold 4 and third side mold 5 are rotationally connected through rotating shaft 6.The rotationally connected between second side mold 4 and third side mold 5, it is convenient for the first side mold 3 to be removed in advance.

[0018] As Figure 1 Indicated, this embodiment also has the following construction method:

[0019] Before the pouring of the pier column 2, the wall body 1 has been poured and completed, the second side mold 4 is connected with the third side mold 5 through the rotating shaft 6 and is installed in place first, then the first side mold 3 is connected with the second side mold 4 through the high-strength bolt 7 to form a whole; after the pouring of the concrete is completed, the high-strength bolt 7 is removed first, the second side mold 4 is rotated outward by a certain angle, then the first side mold 3 is removed, and finally the second side mold 4 and the third side mold 5 are removed as a whole.

[0020] The beneficial technical effects of the embodiment are: simple structure, convenient operation; the installation and removal of the formwork in a narrow space are realized.

[0021] Although the above embodiments have been described in detail with reference to the accompanying drawings for the purpose of the conception and embodiments of the utility model, those skilled in the art can realize that various improvements and changes can be made to the utility model without departing from the scope defined by the claims, and therefore, detailed description is not given herein.

Claims

1. A rotatable steel form for use in tight spaces, characterized by: The utility model relates to a side mould for pouring column, which comprises a first side mould, a second side mould and a third side mould, the first side mould, the second side mould and the third side mould enclose a closed structure for pouring column, the closed structure is arranged in the narrow space of the wall that has been poured, the number of the first side mould, the second side mould and the third side mould is one, two and one respectively, two ends of the first side mould are fixedly connected with one end of two second side moulds respectively, the other end of two second side moulds is rotatably connected with two ends of the third side mould.

2. A rotatable steel form for use in tight spaces as claimed in claim 1, wherein: The first side mould is composed of a straight line segment and two arc segments, and the two arc segments are arranged at two ends of the straight line segment respectively.

3. A rotatable steel form for use in tight spaces as claimed in claim 1, wherein: The second side mould is composed of a straight line segment and an arc segment.

4. The rotatable steel form for use in tight spaces of claim 1, wherein: The third side mould is composed of a straight line segment.

5. The rotatable steel form for use in tight spaces of claim 1, wherein: The first side mould and the second side mould are fixedly connected through high-strength bolts.

6. A rotatable steel form for use in tight spaces as defined in claim 1, wherein: The second side mould and the third side mould are rotatably connected through a rotating shaft.