CN2404619Y

CN2404619Y - Concrete self-locking inserting-rod and reaming bit therefor

Info

Publication number: CN2404619Y
Application number: CN99245555U
Authority: CN
Inventors: 周剑波; 高作平; 杨汉诚; 陈明祥; 卢亦焱; 甘良绪
Original assignee: JUCHENG STRENGTHENING INDUSTRY Co Ltd WUHAN
Current assignee: JUCHENG STRENGTHENING INDUSTRY Co Ltd WUHAN
Priority date: 1999-12-14
Filing date: 1999-12-14
Publication date: 2000-11-08
Anticipated expiration: 2009-12-14
Also published as: WO2001044584A1; AU1690401A

Abstract

The utility model discloses a concrete self-locking inserting rod and a matched reaming bit, which relate to the techniques of concrete inserting rod and drilling. In order to overcome the problems of ricketiness in an expansion method and structural glue ageing in a steel-bar-planting method in common methods of the concrete inserting rod, the self-locking method is realized by the self-locking inserting rod and the matched reaming bit, wherein, the self-locking inserting rod is composed of an inserting rod and a wedge, and the inserting rod is a steel bar with two to eight notches at the lower end; the reaming bit is composed of a drill rod, a chisel head, and a base, wherein, the chisel head is in a two-petal type. As the self-locking inserting rod has high tensile resistance and is matched with the reaming bit for working, the operation is easy and high efficient. The utility model can be used for adding embedded parts or reservation steel bars to concrete structures.

Description

A kind of concrete is from inserted bar of lock and supporting reaming bit

The utility model relates to concrete inserted link and drilling technique, is particularly useful for construction, installation, decoration in the architectural engineering etc.

At aspects such as the construction of architectural engineering, installation, decorations, because a variety of causes usually need be mended on existing xoncrete structure and establish built-in fitting.The method of generally taking at present has:

1. plavini, electricity consumption is drilled on the concrete and holes, and it is constant to bore the footpath, inserts expansion bolt again and come rivet clasp in the hole.Its stressed principle is the expansion by bolt root, makes it and the local extruding of inwall produces at the bottom of the hole friction realizes being connected, so this connection is extremely unreliable, resistance to plucking is limited in one's ability.When the resistance to plucking breaking test, whole being pulled out of bolt come.

2. bar planting method, electricity consumption is drilled on the concrete and holes, and after a kind of function building structure glue is smeared on the surface of the inwall in hole and reinforcing bar, inserts reinforcing bar in boring again; After treating that structure glue is solidified, reinforcing bar is promptly force-applied.This method because of structure glue bonding, intensity is big, and reinforcing bar and concrete bonding plane are big, thereby connect reliable.When resistance to plucking is tested, can make reinforcing bar pull off or make concrete to become the conical surface to extract.But structure glue is macromolecular material substantially, and its problem of aging can not be ignored, and therefore has hidden danger to exist.

The purpose of this utility model is to overcome problems of the prior art and deficiency, promptly overcome the structure glue problem of aging in the not firm and bar planting method in the plavini, and release a kind of new method, promptly the method with mechanical snap is connected between insert and concrete.

The purpose of this utility model is realized that by the self-locking method self-locking method is to be finished from inserted bar of lock and supporting reaming bit by a kind of.Wherein be made up of inserted link and chock from inserted bar of lock, reaming bit is made up of drilling rod, cutter head and base.Describe in detail below in conjunction with drawings and Examples.

Fig. 1 is schematic diagram before the reaming,

Fig. 2 is schematic diagram after the reaming,

Fig. 3 inserts schematic diagram for inserted link,

Fig. 4 is inserted link pressurization back distending schematic diagram,

Fig. 5 is an inserted link tension resistance to plucking self-locking schematic diagram.Wherein: the 1-concrete, the 2-drilling rod, 3-cuts a hole head, 4-base, 5-inserted link, 6-chock.

1. the utility model is by forming from inserted bar of lock and reaming bit.Wherein:

1. as shown in Figure 3, form by inserted link 5 and chock 6 from inserted bar of lock.Inserted link 5 is garden shape reinforcing bars that there are 2 to 8 otch a lower end, and chock 6 is bqusters of point on the garden, sticks with glue each other to connect, and slightly firmly knocks and can separate.2. as shown in Figure 1, reaming bit is made up of drilling rod 2, cutter 3 and base 4.Drilling rod 2 is an oval reinforcing bar; Cutter 3 is two a petals cutter head.Base 4 is that a upper end is the short garden shape reinforcing bar of taper.Drilling rod 2 and cutter 3 is hinged, and cutter 3 and base 4 are for being slidingly connected.Base 4 and drilling rod 2 are connected by slide bar.

2. the utility model operation principle is as follows:

1. as seen from Figure 1, Figure 2, earlier reaming bit is contained on the electric impact drill, and inserts and bore in the good hole, rotation hammering by electric impact drill, make cutter 3 under the reaction of base 4, with petal cutter 3 separately, thereby impact into a conical surface at the bottom of the hole with concrete 1.The size of reaming bit should be complementary with desired pore size.2. as can be known, will put into reaming from inserted bar of lock, and beat from inserted bar of lock with hammering, the otch that makes inserted link 5 lower ends makes otch become conical surface distending under the reaction of chock 6, thereby reaches the purpose that is adjacent to self-locking with hole base cone face by Fig. 3, Fig. 4, Fig. 5.

By above analysis as can be known, the utility model self-locking owing to adopt mechanical snap, so stretching resistance is extremely strong.If smear structure glue simultaneously, effect is better.The self-locking hinge pedestal structure is simple, ratio of performance to price height.The reaming bit supporting operation is arranged again, make simple to operate efficient.The benefit that can be widely used on the xoncrete structure is established in built-in fitting or the reserved steel bar.

Claims

1. a concrete is characterized in that being made up of inserted link (5) and chock (6) from inserted bar of lock from inserted bar of lock; Inserted link (5) is the reinforcing bar that there are 2 to 8 otch a lower end; Chock (6) is the big chock of going up point.

2. a kind of concrete as claimed in claim 1 is from the kit of inserted bar of lock---a kind of reaming bit, it is characterized in that reaming bit is made up of drilling rod (2), cutter head (3) and base (4); Drilling rod (2) is a microscler reinforcing bar; Cutter head (3) is two a petals cutter head, and its upper end is hinged with drilling rod (2); Base (4) is that a upper end is a taper brachmorphy reinforcing bar, is connected with slide bar with drilling rod (2).