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Formwork accessory for manufacturing pull rod sealing pit and formwork

A formwork and tie rod technology, applied in the field of building formwork and formwork, can solve the problems of damage to product quality, irregular pit edges, time-consuming and labor-intensive problems, and achieve the effects of low cost, neat edges and wide adaptability

Inactive Publication Date: 2019-01-18
北京城建十六建筑工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is time-consuming and labor-intensive, and the shape and size of the pits to be removed are not easy to control. Vibration and beating may also damage the quality of the product itself, and the edges of the pits are irregular.

Method used

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  • Formwork accessory for manufacturing pull rod sealing pit and formwork
  • Formwork accessory for manufacturing pull rod sealing pit and formwork

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 with figure 2 As shown, in the prior art, the tie rod 4 passes through the through hole of the tie rod on the template 2 and is tightened on the holder 3 using a lock nut 5. Symmetrically, the other end of the tie rod 4 is also arranged. This embodiment is set on the inner working surface of the existing template 2, including the cavity wall 11 and the sealing edge 14.

[0035] The convex surface of the cavity wall 11 is a spherical surface, the center of the sphere is located on the bonding surface of the sealing edge 14, and the radius Ra=15cm. The sealing edge 14 also includes a drafting bevel 141, and the drafting bevel 141 is integral with the convex surface of the cavity wall 11 without a negative drafting angle. This embodiment is suitable for removing the word concrete as a whole after solidification.

[0036] In fact, the convex surface can be square cone shape, arch shape, step shape suitable for angle grinders, etc.; it can also be circular co...

Embodiment 2

[0044] Such as figure 1 As shown, on the existing template 2, the template accessory 1 is welded. In this way, the template attachment 1 can be removed from the solidified concrete together during demolding, and a sealed pit is formed at the end of the tie rod.

[0045] After cutting the tie rod, use cement mortar to fill the sealing pit and smooth the outer surface.

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Abstract

The invention relates to a formwork accessory for manufacturing a pull rod sealing pit. The formwork accessory is used in cooperation with a formwork, is separated from concrete after the concrete issolidified, and comprises a cavity wall, a pull rod hole and a sealing edge. The sealing edge is arranged around the cavity wall, and the sealing edge comprises an attached face and a formwork stirring inclined face. The attached face is attached to the formwork, and the sealing edge is used for stopping the concrete from flowing into the space between the cavity wall and the formwork. The pull rod hole penetrates through the cavity wall and is suitable for allowing a pull rod to pass, and the included angle between the pull rod hole and the attached face is equal to that between the pull rodand a formwork work face. The cavity wall comprises a convex face, and the convex face is back to the attached face of the sealing edge. According to the formwork accessory for manufacturing the pullrod sealing pit, by arranging the convex face of the cavity wall, the sealing pit is formed at the tail end of the pull rod after concrete is solidified, and used for cutting off and sealing the pullrod. The product structure is protected, and the edge is ordered. The formwork accessory can be repeatedly used, and can be directly used for the existing formwork, and the existing formwork does notneed to be transformed.

Description

Technical field [0001] The invention relates to the field of building templates, in particular to a template accessory for making draw rod sealing pits. [0002] The invention also relates to a template. Background technique [0003] The construction industry will use formwork to build the outer frame when pouring large pieces, and then pouring concrete inside. Fluid concrete will produce huge lateral pressure on the formwork. If the formwork is not built firmly, it will cause undesirable phenomena such as expansion and runout, resulting in unqualified casting products. Therefore, the formwork is often reinforced by adding tie rods. [0004] The tie rod passes through the area to be poured and passes through the two opposite templates. Use fasteners to fix the outside of the template, pull the template to prevent the template from moving outwards. In this way, the tie rod will be locked by the concrete as a whole after pouring. In order to prevent the tie rods from rusting and af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G17/00
CPCE04G17/001
Inventor 田洪旭霍炳昊张亚男胡吉鼎
Owner 北京城建十六建筑工程有限责任公司
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