CN219080981U

CN219080981U - Non-support fixing device for post-pouring strip of superimposed sheet

Info

Publication number: CN219080981U
Application number: CN202320206482.0U
Authority: CN
Inventors: 陈晓伟; 张�林; 陈俊俏; 曹坤; 张苗; 王辉; 徐乾; 张亮亮; 柴静; 王龑; 张涛
Original assignee: Shanxi Construction Engineering Group Co Ltd
Current assignee: Shanxi Construction Engineering Group Co Ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-05-26
Anticipated expiration: 2033-02-14

Abstract

The utility model relates to a support-free fixing device for post-pouring strips of superimposed sheets, which belongs to the field of building construction and solves the problems of complex structure, low construction efficiency and difficult post-form removal of the existing post-pouring strip supporting and fixing device, and adopts the following technical scheme: the post-pouring strip non-support fixing device for the laminated slab is simple in structure, high in construction efficiency, and high in demolding efficiency, only needs to be disassembled on one side during later demolding.

Description

Non-support fixing device for post-pouring strip of superimposed sheet

Technical Field

The utility model belongs to the field of building construction, and particularly relates to a support-free fixing device for a post-pouring strip of a laminated slab.

Background

The post-cast strip is a concrete strip reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements in order to prevent harmful cracks possibly generated by uneven self shrinkage or uneven settlement of a reinforced concrete structure in building construction. And after the construction of the main body structure is finished, pouring construction is carried out on the post-pouring belt.

It is currently common practice to employ a process similar to that described in patent No.: 201922038809.4, a wood template is supported below the post-cast strip through support rods with different structures, so that casting of the post-cast strip area is performed. The construction method has the defects that a plurality of supporting frames are required to be erected in a large scale along the area of the post-cast strip, the construction time of the post-cast strip area can be increased by the process method, and the supporting rod piece has the potential safety hazard of toppling.

To solve this problem, there are some support-free methods, for example, patent nos.: 201921354586.6, through setting up bearing structure on the upper and lower both sides of post-cast strip, then hoist and mount the wooden form of lower part through the jib fixedly. Although the structure omits a support rod piece erected on a large scale, the installation process of the structure is complex, and after concrete is poured, the support rod piece on the upper layer can influence the operation of construction workers when the concrete is smeared. When the formwork is removed, personnel are required to be arranged on the upper side and the lower side simultaneously for the formwork removing operation, and the construction efficiency is not greatly improved.

Disclosure of Invention

The utility model provides a support-free fixing device for a post-cast strip of a superimposed sheet, which aims to solve the problems of complex structure, low construction efficiency and difficult post-form removal of the existing support-fixing device for the post-cast strip. The support-free fixing device for the post-pouring strip of the superimposed sheet has the advantages of simple structure and high construction efficiency, and the post-pouring strip of the superimposed sheet only needs to be removed from one side during later-stage die removal, so that the die removal efficiency is high.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the post-pouring strip unsupported fixing device of the laminated slab comprises laminated slabs arranged on two sides of the post-pouring strip, a plurality of threaded sleeves are arranged on one side, close to the post-pouring strip, of the laminated slab at intervals along the length direction of the post-pouring strip, a wood template is arranged below the post-pouring strip, two ends of the wood template are overlapped at the bottom of the laminated slab, and a compacting structure is arranged below the template;

the compaction structure comprises a plurality of square tubes and a plurality of square timber, the square timber is arranged below the timber formwork at intervals, the square timber is arranged along the length direction of the post-cast strip, the square tubes are transversely lapped below the square timber, mounting holes are formed in the two ends of the square tubes, a screw rod penetrates through the mounting holes to be in threaded connection with the threaded sleeve, and the timber formwork is fixed through the square tubes and the square timber.

Further, the threaded sleeve is welded and fixed with truss steel bars inside the laminated slab.

Further, a backing plate is arranged between the screw and the square tube, and threads are formed in the middle of the backing plate and matched with the screw.

Compared with the prior art, the utility model has the following specific gain effects: according to the utility model, by combining the structure of the laminated slab, the threaded sleeve and truss reinforcement inside the laminated slab are welded and fixed during secondary design of the laminated slab. And fixing the wood template below the post-pouring belt by utilizing the pre-buried threaded sleeve and matching with square timber, a steel pipe and a screw rod. Any structure is not erected above the post-cast strip, and after pouring is finished, trowelling operation is convenient for workers. When the die is disassembled, the steel pipe, the square timber and the wood template can be taken down only after the screw rod is taken out. And the steel pipe, the square timber and the screw rod can be reused, so that the construction cost is reduced.

Drawings

Fig. 1 is a schematic diagram of the front structure of the present utility model.

FIG. 2 is a schematic view of the A-A structure in FIG. 1.

In the figure, 1 is the superimposed sheet, 2 is the post-cast strip region, 3 is the screw sleeve, 4 is the plank sheathing, 5 is the square pipe, 6 is the square timber, 7 is the screw rod, 8 is the backing plate, 9 truss reinforcing bars.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-2, the support-free fixing device for the post-cast strip of the laminated slab comprises laminated slabs 1 arranged on two sides of the post-cast strip, and the area between the two laminated slabs 1 is a post-cast strip area 2. And a plurality of threaded sleeves 3 are arranged on one side of the superimposed sheet 1 close to the post-cast strip at intervals along the length direction of the post-cast strip. The lower part of post-cast strip is provided with plank sheathing 4, and the both ends of plank sheathing 4 are taken in the bottom of superimposed sheet 1, and the below of plank sheathing is provided with the beta-form, utilizes the beta-form to fix plank sheathing 4 in the below of post-cast strip.

The compaction structure comprises a plurality of square tubes 5 and a plurality of square timber 6, wherein the square timber 6 is arranged below the timber templates 4 at intervals, the square timber 6 is arranged along the length direction of the post-pouring belt, the square timber 6 is divided into three groups to be arranged, the square timber 6 on two sides is pressed at the edge of the timber templates 4, the square timber 6 in the middle is used for providing support for the middle of the timber templates 4, and the timber templates 4 are prevented from being deformed under pressure in the pouring process. The square pipe 5 is transversely lapped below the square timber 6, mounting holes are formed in two ends of the square pipe 5, a screw rod 7 penetrates through the mounting holes to be in threaded connection with the threaded sleeve 3, and the wood template 4 is fixed through the square pipe 5 and the square timber 6.

The whole fixing device is simple in structure, and is fixedly connected through the screw rod 7 during installation, so that the risk of toppling of the support rod does not exist, and the safety performance is good. When pouring, no supporting device or hoisting structure is arranged above the post-pouring belt, pouring cannot be influenced, and after the post-pouring is finished, concrete convenient to pour is trowelled. After the concrete is solidified, when the mould is disassembled, compared with a hoisting structure, the square pipe 5, the square timber 6 and the wood template 4 can be disassembled only by disassembling the screw 7 on one side, and the wood template 4, the square timber 6 and the square pipe 5 can be reused.

Most of the existing superimposed sheet 1 needs to be designed secondarily, and when the secondary design is carried out, the threaded sleeve 3 is added, so that the working procedures of a construction site are reduced, and the built-in threaded sleeve 3 is utilized to fix a post-pouring belt pouring mold. The construction difficulty of a construction site is simplified, and the pouring efficiency of the post-pouring belt is improved. In the manufacturing process of the laminated slab 1, the threaded sleeve 3 and the truss steel bar 9 are welded and fixed, so that the structural stability of the whole post-pouring belt pouring mold can be improved.

In addition, the above is not limited to how the screw 7 presses the square pipe 5 and the square timber 6, and a backing plate may be used to press the square pipe 5. The middle part of the base plate 8 is directly provided with threads matched with the screw rod 7, the base plate 8 serves as a base plate and also plays a role of a nut, and the square pipe 5 and the square timber 6 are tightly pressed by screwing the base plate 8.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a post-cast strip support-free fixing device of superimposed sheet, including setting up superimposed sheet (1) in post-cast strip both sides, its characterized in that: a plurality of threaded sleeves (3) are arranged at intervals along the length direction of the post-pouring belt on one side of the laminated slab (1) close to the post-pouring belt, a wood template (4) is arranged below the post-pouring belt, two ends of the wood template (4) are lapped at the bottom of the laminated slab (1), and a compacting structure is arranged below the template;

the compaction structure comprises a plurality of square tubes (5) and a plurality of square timber (6), wherein the square timber (6) are arranged below the timber templates (4) at intervals, the square timber (6) is arranged along the length direction of the post-cast strip, the square tubes (5) are transversely overlapped below the square timber (6), mounting holes are formed in the two ends of the square tubes (5), the screw rods (7) penetrate through the mounting holes and are in threaded connection with the threaded sleeves (3), and the square timber (5) and the square timber (6) are used for fixing the timber templates (4).

2. The superimposed sheet post-cast strip unsupported fixing device of claim 1 wherein: the threaded sleeve (3) is welded and fixed with truss steel bars (9) in the laminated slab (1).

3. The superimposed sheet post-cast strip unsupported fixing device of claim 2 wherein: a backing plate (8) is arranged between the screw (7) and the square tube (5), and threads are formed in the middle of the backing plate (8) and matched with the screw (7).