M-shaped side wall disassembly-free steel pipe main keel formwork overall moving clamping piece

By using "M"-shaped clamps to secure the main steel pipe keel to the secondary keel, the problem of the main keel not being able to be hoisted along with the formwork was solved, enabling overall movement and rapid construction, and improving construction efficiency and applicability.

CN224078689UActive Publication Date: 2026-04-03BUILDING & MOUNTING ENG CO LTD NO 12 BUREAU MINIST OF RAILWAYS +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In the construction of frame-shear wall/shear wall structures, the main joists and secondary joists cannot be hoisted together with the formwork during the demolding process, resulting in low construction efficiency. Especially in narrow construction sites, secondary stacking and installation are required, which affects the construction speed and efficiency.

Method used

The main steel pipe keel and the secondary keel are fixed together by "M" type clamps. The main steel pipe keel is clamped to the main steel pipe keel by concave angle clamps, so as to realize the whole movement, avoiding disassembly and secondary assembly. It is made by processing the template scraps, and the structure is simple and easy to assemble and replace on site.

Benefits of technology

It enables the main and secondary keels to be moved without being removed, improving construction speed and efficiency, saving material storage space, and is suitable for materials of different specifications, making it highly adaptable.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224078689U_ABST
    Figure CN224078689U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of concrete formworks, and particularly relates to an M-shaped side wall disassembly-free steel pipe main keel formwork overall moving clamping piece. Comprising an M-shaped clamping piece, two concave included angles are constructed on the M-shaped clamping piece, the two concave included angles are located between two long edges, the M-shaped clamping piece can be clamped on two steel pipe main keels through the two concave included angles, the two concave included angles are separated, a gap for a split screw to penetrate through is reserved between the two steel pipe main keels, the two long edges of the M-shaped clamping piece are connected with a secondary keel, and the two long edges of the M-shaped clamping piece are connected with the secondary keel. The steel pipe main keel and the steel pipe secondary keel are fixedly connected together through a plurality of M-shaped clamping pieces; the steel pipe main keel is fixed on the secondary keel through the M-shaped clamping piece, the main keel and the secondary keel do not need to be dismantled in the formwork moving process and can move along with the formwork, the overall moving area of the formwork is increased, and the installation speed of the formwork is increased.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of concrete formwork technology, specifically relating to an integrated movable clamp for an "M"-shaped side wall non-removable steel pipe main keel formwork. Background Technology

[0002] In recent years, during the construction of frame-shear wall / shear wall structures, in order to save construction costs and speed up the turnover rate of formwork, three layers of roof slab formwork and one layer of wall and column formwork are often used, such as... Figure 1 As shown, the secondary keel is made of square timber, and the main keel is made of steel pipe. During the actual turnover of the wall and column formwork, the secondary keel can be connected to the formwork with nails, while the main keel is often fixed by U-shaped clips and tie rods. During the demolding process, after the tie rods are removed, the main keel cannot be hoisted together with the secondary keel along with the formwork, and the formwork can only be hoisted one section at a time. The main keel needs to be stacked and installed again. In the narrow space of the construction site, the construction efficiency is greatly reduced. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] This utility model provides the following technical solution: an "M"-shaped side wall non-removable steel pipe main keel formwork integral movable clamp, including an "M"-shaped clamp. The "M"-shaped clamp has two concave angles located between two long sides. The "M"-shaped clamp can be clamped onto two steel pipe main keels through the two concave angles. The two concave angles are spaced apart, leaving a gap between the two steel pipe main keels for the threaded tie rod. The two long sides of the "M"-shaped clamp are connected to the secondary keel. The steel pipe main keel and secondary keel are fixed together by several "M"-shaped clamps.

[0005] Furthermore, an outward convex angle is set between the two concave angles.

[0006] Furthermore, the straight sides of the two concave angles are connected to the long side, and the hypotenuses of the two concave angles are connected to form a convex angle.

[0007] Furthermore, the "M" type fastener is a wooden board, which is fixed to the secondary keel with nails.

[0008] Furthermore, the width of the long side is 50mm or more; the distance from the vertex of the concave angle to the edge of the "M" shaped card is 50mm or more.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] This utility model provides an "M"-shaped side wall non-removable steel pipe main keel formwork overall moving clip. The "M"-shaped clip fixes the steel pipe main keel to the secondary keel. During the formwork movement, the main keel and secondary keel do not need to be removed and can move together with the formwork, increasing the overall moving area of ​​the formwork and the installation speed.

[0011] "M" type fasteners can be processed using template scraps, have a simple structure, are easy to process on-site, and are easy to assemble, disassemble, and replace.

[0012] The side wall formwork can be assembled and moved as a whole. The secondary and main keels do not need to be dismantled during the movement or reassembled after being moved into place, which speeds up the formwork construction and saves material storage space.

[0013] The length and angle of each part of the "M" type fastener can be adjusted to adapt to different construction sites and materials of different specifications, making it highly adaptable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation of the main keel and secondary keel in the existing technology;

[0015] Figure 2 A schematic diagram of an "M" type card;

[0016] Figure 3 This is a schematic diagram of the installation of the "M" type card.

[0017] In the diagram: 1-Wall-shaped clip; 2-Template; 3-“M” type clip; 3.1-Inward concave angle; 3.2-Long side; 3.3-Outward convex angle; 4-Secondary keel; 5-Steel pipe main keel. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] like Figure 2 , Figure 3As shown: An "M"-shaped side wall non-removable steel pipe main keel formwork integral movable clamp includes an "M"-shaped clamp 3. The "M"-shaped clamp 3 has two concave included angles 3.1, which are located between two long sides 3.2. The "M"-shaped clamp 3 can be clamped onto two steel pipe main keels 5 through the two concave included angles 3.1. An outward included angle 3.3 is set between the two concave included angles 3.1 to leave a gap between the two steel pipe main keels 5 for the threaded tie rod. The two long sides 3.2 of the "M"-shaped clamp 3 are connected to the secondary keel 4. The steel pipe main keel 5 and the secondary keel 4 are fixed together by several "M"-shaped clamps 3.

[0020] The straight sides of the two concave angles 3.1 are connected to the long side 3.2, and the hypotenuses of the two concave angles 3.1 are connected to form the convex angle 3.3. The distance between the two main steel pipe keels 5 is adjusted by adjusting the concave angles 3.1 and the convex angle 3.3 to ensure that the mountain-shaped clip can fit tightly with the two main steel pipe keels 5, so that the tie rod can pass through and be fixed.

[0021] The "M"-shaped clip 3 is a wooden board, which is fixed to the secondary keel 4 with nails. The position of the long side 3.2 is adjusted to ensure that the main steel pipe keel 5 is locked in place, preventing it from slipping during the movement of the hoisted formwork. The long side 3.2 must not be too short to ensure a firm connection with the secondary keel and sufficient rigidity. The "M"-shaped clip 3 can be processed from leftover formwork materials, has a simple structure, is easy to process on-site, and is easy to assemble, disassemble, and replace.

[0022] The width of the long side 3.2 is 50mm or more; the distance from the vertex of the concave angle 3.1 to the edge of the “M” type card 3 is 50mm or more.

[0023] The "M" type clamp 3 has a simple structure, is easy to process and operate, greatly accelerating the construction efficiency of workers and saving labor costs. The length and angle of each part of the "M" type clamp 3 can be adjusted according to the actual site conditions, making it suitable for different specifications and sizes on site, increasing its applicability. It can be widely used in scenarios with continuous shear walls, such as underground continuous retaining walls, cable trenches, and pipe galleries.

[0024] Taking the shear wall side wall formwork of Building 15 in Yuejia Community as an example, with a floor height of 5.1m, the original formwork hoisting could only be done by hoisting single formwork panels as a whole. The main and secondary keels had to be removed, and after removal, they had to be transported to the construction work surface for reassembly. Due to the small construction site and limited material storage, dismantling could only be done in sections, resulting in low assembly efficiency and serious worker idleness. After adopting the "M" type clamps, the formwork can be hoisted into place as a whole, and the main and secondary keels do not need to be removed. The site occupancy is small, the construction efficiency is improved, and the original two-day side wall formwork assembly cycle is shortened to one day, and the number of workers is reduced by 1 / 3.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A movable clamp for the "M"-shaped side wall non-removable steel pipe main keel formwork, characterized in that: The application relates to a steel pipe main keel and secondary keel fixing device, which comprises an "M"-type clamping piece (3), two inner recessed angles (3.1) are arranged on the "M"-type clamping piece (3) and are located between two long edges (3.2), the "M"-type clamping piece (3) can be clamped on two steel pipe main keels (5) through the two inner recessed angles (3.1), the two inner recessed angles (3.1) are spaced apart to reserve a gap for a pull rod between the two steel pipe main keels (5), the two long edges (3.2) of the "M"-type clamping piece (3) are connected with secondary keels (4), and the steel pipe main keels (5) and the secondary keels (4) are fixed together through a plurality of "M"-type clamping pieces (3).

2. The "M" type side wall disassembly-free steel pipe main keel template integral moving clamping piece according to claim 1, characterized in that: An outer convex angle (3.3) is arranged between the two inner recessed angles (3.1).

3. The "M" type side wall disassembly-free steel pipe main keel formwork integral moving clamping piece according to claim 2, characterized in that: The straight edges of the two inner recessed angles (3.1) are connected with the long edges (3.2), and the inclined edges of the two inner recessed angles (3.1) are connected to form the outer convex angle (3.3).

4. The "M" type side wall disassembly-free steel pipe main keel template integral moving clamping piece according to claim 2, characterized in that: The "M"-type clamping piece (3) is a wooden board, and the "M"-type clamping piece (3) is fixed on the secondary keel (4) through nails.

5. The "M" type side wall disassembly-free steel pipe main keel formwork integral moving clamping piece according to claim 4, characterized in that: The width of the long edge (3.2) is greater than 50 mm, and the distance from the vertex of the inner recessed angle (3.1) to the edge of the "M"-type clamping piece (3) is greater than 50 mm.