CN203222994U - Detachable embedded piece for outer wall formwork - Google Patents

Abstract

A detachable embedded part for an exterior wall formwork, comprising an external bolt with an adjusting thread at one end and a pre-embedded bolt with a fixed thread at one end, the adjusting thread is sequentially sleeved with a mountain-shaped clip and a screw connection. An adjusting nut; the other end of the external bolt is provided with a fixing nut, and the external bolt and the embedded bolt are connected through the fixing nut and the fixing thread. The utility model is simple in structure, easy to manufacture, low in production cost, reusable, high in utilization rate, and low in use cost; when in use, the pre-embedded bolts are pre-embedded in the wall, so that the end of the fixing thread protrudes out of the wall 20-30mm; when installing the external wall formwork of the shear wall, connect the external bolts to the exposed fixed thread ends of the embedded bolts through the fixing nuts, tighten the adjusting nuts, and press the shears through the mountain clips, round pipes and square wood. Force wall external wall formwork; after the concrete is poured, the embedded bolts remain in the wall, and the embedded bolts are hidden in the plaster layer of the external wall, so there is no need to cut the embedded bolts embedded in the wall.

Description

A detachable embedded part for exterior wall formwork

technical field

The utility model belongs to the technical field of pre-embedded tools for exterior walls of concrete shear wall structures, in particular to a detachable pre-embedded part for an exterior wall formwork.

Background technique

At present, in the process of building construction, when the external wall of the cast-in-place concrete shear wall structure is constructed, it is necessary to pre-embed bolts in the shear wall to reinforce the external wall formwork of the shear wall. The traditional construction method is to pre-embed through-wire bolts in the wall, and the material cost is high; and before the external wall is plastered, it is necessary to cut the pre-embedded bolts on the shear wall, which is time-consuming and labor-intensive. Large and inefficient.

Utility model content

The utility model provides a detachable pre-embedded part for an exterior wall formwork with simple structure, convenient manufacture, low cost, reusability and high utilization rate.

In order to achieve the above purpose, the technical solution of this utility model is: a detachable embedded part for exterior wall formwork, including an external bolt with an adjusting thread at one end and an embedded bolt with a fixed thread at one end. The mountain-shaped card and the screw connection are provided with adjusting nuts sequentially from the inside to the outside; the other end of the external bolt is provided with a fixing nut, and the external bolt and the embedded bolt are connected through the fixing nut and the fixing thread.

The fixing nut is provided with reinforcing ribs connected with the external bolts.

The lengths of the external bolts and the embedded bolts are both 250mm, and the lengths of the adjusting thread and the fixing thread are both 100mm.

Compared with the prior art, the utility model has the advantages of:

1. The utility model includes an external bolt with an adjusting thread at one end and a pre-embedded bolt with a fixed thread at one end. The adjusting thread is sequentially sleeved with a mountain-shaped clamp and screwed with an adjusting nut from the inside to the outside; the external bolt is another One end is provided with a fixed nut, and the external bolt and the embedded bolt are connected through the fixed nut and the fixed thread. The structure is simple, easy to manufacture, low in production cost, reusable, high in utilization rate, and low in use cost; The pre-embedded bolts are pre-embedded into the wall, so that the end of the fixed thread protrudes 20-30mm outside the wall; when installing the external wall formwork of the shear wall, the external bolts are connected to the exposed fixed threads of the pre-embedded bolts through fixing nuts At the end, tighten the adjusting nut, and press the shear wall external wall formwork through the mountain clamp, round pipe and square wood; after the concrete is poured, remove the external bolts after the shear wall external wall formwork is removed, and the embedded bolts remain Inside the body, when the exterior wall is plastered, the pre-embedded bolts are directly concealed in the exterior wall plaster layer, and there is no need to cut the pre-embedded bolts embedded in the wall, which can greatly save construction time and improve work efficiency.

2. The fixing nut is provided with a reinforcing rib connected with the non-threaded part of the external bolt, which can improve the structural strength and effectively prolong the service life.

3. The utility model can be applied to the formwork construction of any shear wall outer wall joints including the basement. The construction meets the specification requirements, the quality is guaranteed, it is easy to popularize, and has good economic and social benefits.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of pre-embedded bolts in Fig. 1;

Fig. 3 is a schematic diagram of the use state of the utility model.

Detailed ways

The detachable embedded parts for exterior wall formwork shown in Figure 1, Figure 2 and Figure 3 include external bolts 1 and embedded bolts 7 with a length of 250mm, and the left end of external bolt 1 is provided with an adjustment thread 2, The right end of the external bolt 1 is provided with a fixed nut 5, and the left end of the embedded bolt 7 is provided with a fixed thread 71. The external bolt 1 and the embedded bolt 7 are fixedly connected by the fixed nut 5 and the fixed thread 71. The mountain-shaped card 3 and the screw-connected adjusting nut 4 are sequentially sleeved at the adjusting thread 2 from the inside to the outside. The inner side of the mountain-shaped card 3 is provided with a round pipe 11 and a square wood 10. Compress round pipe 11 and square wood 10. In order to improve the structural strength, the fixing nut 5 is provided with a reinforcing rib 6 connected with the unthreaded part of the external bolt 1, which can effectively prolong the service life.

In this embodiment, both the external bolts 1 and the embedded bolts 7 are made of waste materials produced by cutting the waterproof bolts of the basement exterior wall, which can effectively utilize the waste materials and improve the utilization rate of materials; the external bolts 1 and the embedded bolts 7 are The length is 250mm, the length of the adjusting thread 2 and the fixed thread 71 is 100mm, and the reinforcing rib 6 is 6mm in diameter.

When the utility model is used, the specific operation process is as follows: 1. Embed the pre-embedded bolt 7 into the wall 8, so that the end of the fixing thread 71 protrudes 20-30 mm outside the wall 8; 2. The outer wall of the shear wall When the formwork 9 is installed, the external bolt 1 is connected to the end of the fixed thread 71 exposed by the embedded bolt 7 through the fixing nut 5, the adjusting nut 4 is tightened, and the shearing is compressed by the mountain-shaped clamp 3, the round pipe 11 and the square wood 10. Force wall exterior wall formwork 9; 3. After the concrete pouring is completed, the external bolt 1 is removed after the shear wall exterior wall formwork 9 is removed, and the embedded bolt 7 is left in the wall body 8. When the exterior wall is plastered, the embedded bolt 7 is directly Concealed in the plaster layer of the exterior wall.

Claims (3)

1. A detachable embedded part for exterior wall formwork, which is characterized in that it includes an external bolt with an adjusting thread at one end and an embedded bolt with a fixed thread at one end, and the adjusting thread is sequentially sleeved with mountain bolts from the inside to the outside. Adjusting nuts are provided for the type clamp and the screw connection; a fixing nut is provided at the other end of the external bolt, and the external bolt and the embedded bolt are connected through the fixing nut and the fixing thread. 2. The detachable embedded part for exterior wall formwork according to claim 1, characterized in that: said fixing nuts are provided with reinforcing ribs connected with external bolts. 3. The detachable embedded part for exterior wall formwork according to claim 1 or 2, characterized in that: the lengths of the external bolts and the embedded bolts are both 250mm, and the lengths of the adjusting thread and the fixing thread are both 100mm .

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