CN103470033A - Shear wall mold board external corner counter-pulling device - Google Patents

Abstract

The invention discloses a pair-pull device for the male corner of a shear wall formwork, which includes a horizontal back flute and a tension screw device. The horizontal back flute includes two mutually perpendicular flute bodies, so that the horizontal back flute is L-shaped. The two corrugated bodies are respectively fixed on the templates on both sides of the male corner, and the ends of the two corrugated bodies close to the male corner are fixedly equipped with steel plate seats. The screw rods are interspersed in the two steel plate seats in order to connect the two steel plate seats, and the two ends of the screw rods are respectively provided with circular washer-type hexagonal nuts, which are used to lock the templates on both sides of the male corner. The invention can effectively prevent mold expansion and grout leakage, realize clear and smooth external corners of the concrete of the shear wall without mold expansion, and greatly reduce concrete waste in the construction process.

Description

A shear wall formwork external corner tensioning device

technical field

The invention relates to a device for pulling the external corners of a shear wall formwork.

Background technique

Usually, in the process of using aluminum alloy formwork for shear wall concrete pouring, the external corners of the shear walls are often not reinforced firmly, resulting in mold expansion and grout leakage at the external corners of the poured shear wall structure, and waste Lots of concrete material.

Contents of the invention

The technical problem to be solved by the present invention is to provide a shear wall external corner pull-up device that can strengthen the external corner formwork and effectively improve the quality of concrete pouring.

The technical solution adopted in the present invention is: a shear wall formwork external angle anti-tension device, which is characterized in that it includes a horizontal back flute and an anti-tension screw device, the horizontal back flute is L-shaped, and the horizontal back flute includes two The two corrugated bodies are respectively fixed on the templates on both sides of the male corners, and the ends of the two corrugated bodies near the male corners are fixed with steel plates. Sheet-type hexagonal nuts, the screw rods are sequentially interspersed in the two steel plate seats to connect the two steel plates, and the two ends of the screw rods are respectively provided with circular gasket-type hexagonal nuts, which are used to lock the templates on both sides of the male corner.

According to the above technical solution, the two mutually perpendicular flute bodies in the horizontal back flute are of an integrated structure.

According to the above technical scheme, the contact surfaces of the two steel plate seats and the circular washer type hexagonal nut are parallel to each other.

According to the above technical scheme, the corrugated body is square.

According to the above technical solution, the template is an aluminum alloy template.

The working process of the present invention is as follows: after the horizontal back flute is installed on the formwork, the purpose of reinforcing the external corner formwork is achieved through the screw rod and the circular washer type hexagonal nut being matched and connected.

The beneficial effects obtained by the present invention are:

1. The present invention is easy to operate, without the need for mechanical installation, so that the overall strength and rigidity of the external angle of the formwork are strengthened, and the quality of concrete pouring is effectively improved;

2. The present invention uses a circular washer-type hexagonal nut, which requires less space for operation, expands the contact surface with the steel plate seat, has a good reinforcement effect, shortens the force transmission path, and reduces the usage of the screw, effectively Reduced costs.

Description of drawings

Fig. 1 is the front view of invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 4 is a schematic diagram of the structure of the present invention installed on the male corner formwork.

In the figure: 1. Horizontal back corrugation, 2. Pull screw device, 3. Square pass, 4. Steel plate seat, 5. Screw rod, 6. Round washer type hexagonal nut. the

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Fig. 1 and Fig. 2, it is a kind of external corner tensioning device of the shear wall formwork provided by the embodiment of the present invention, which includes a horizontal back flute 1 and a tension screw device 2, and the horizontal back flute 1 includes two The corrugated bodies 3 perpendicular to each other make the horizontal back corrugated 1 L-shaped, and the two corrugated bodies 3 are respectively fixed on the aluminum alloy templates on both sides of the male corners, and the ends of the two corrugated bodies 3 close to the male corners are fixed with The steel plate seat 4, the pull screw device 2 includes a screw rod 5 and a circular washer type hexagonal nut 6, the screw rod 5 is sequentially interspersed in the two steel plate seats 4 to connect the two steel plates, and the two ends of the screw rod 5 are respectively provided with Circular washer type hexagonal nut 6, is used for locking the formwork on male angle both sides. Wherein, the contact surfaces of the two steel plate seats 4 and the circular washer-type hexagon nut 6 are parallel to each other, and are used to increase the contact surface between the circular washer-type hexagon nut 6 and the steel plate seat 4, thereby shortening the force transmission path.

In the present invention, the two corrugated bodies 3 are of an integrated structure; the two corrugated bodies are square,

During construction, first install the aluminum alloy formwork on both sides of the shear wall. After the formwork is installed, install the horizontal back flute 1 on the formwork, and then weld and fix the two steel plate seats 4 on the horizontal back flute 1 respectively, and the screw rods 5 are connected in series. The two steel plate seats are fixed with circular spacer type hexagonal nuts 6, so that the templates are connected and fixed, and concrete pouring can be carried out.

The invention can effectively prevent mold expansion and grout leakage, realize clear and smooth external corners of the concrete of the shear wall without mold expansion, and greatly reduce concrete waste in the construction process.

Claims (5)

1. a shear wall formwork external corner is to drawing device, it is characterized in that comprising horizontal back cord and Screw arbor with nut at both-ends device, described horizontal back cord comprises two orthogonal stupefied bodies, make described horizontal back cord be L-type, two stupefied bodies are separately fixed on the template of external corner both sides, an end near external corner on two stupefied bodies all is fixedly installed steel plate seat, described Screw arbor with nut at both-ends device comprises screw rod and circular pad chip hex nut, described screw rod interts successively and in two steel plate seats, two steel plate seats is connected, be respectively arranged with circular pad chip hex nut at the two ends of screw rod, for locking the template of external corner both sides.

2. a kind of shear wall formwork external corner according to claim 1, to drawing device, is characterized in that two orthogonal stupefied bodies in described horizontal back cord are the integral type structure.

3. a kind of shear wall formwork external corner according to claim 1, to drawing device, is characterized in that on steel plate seat all rectangular with circular pad chip hex nut phase-contact surface and screw rod.

4. a kind of shear wall formwork external corner according to claim 3, to drawing device, is characterized in that described stupefied body is square tube.

5. a kind of shear wall formwork external corner according to claim 1, to drawing device, is characterized in that described template is aluminum alloy mould plate.

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