CN1124812A

CN1124812A - Connecting method for reinforcing bars

Info

Publication number: CN1124812A
Application number: CN 95102545
Authority: CN
Inventors: 杨培生
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-02
Filing date: 1995-07-02
Publication date: 1996-06-19

Abstract

The reinforcing bar connecting method features that the ends of two reinforcing bars to be connected are obliquely splined and then matched with each other and a sleeve tube is used to press the connected parts tightly. Its advantages include easy connection, high strength and low cost.

Description

A kind of connecting method for reinforcing bars

The present invention relates to a kind of method that two reinforcing bars are coupled together.

Along with the development of society, building covers higher and higher, and is also more and more higher to the link technique requirement of reinforcing bar, how to improve the bonding strength of reinforcing bar, reduces the link cost of reinforcing bar and can be convenient to construction again, and these all are that people wish more improved problems.The connecting method for reinforcing bars that present highrise building is used mainly contains four kinds: a kind of is binding, and a kind of is welding, and a kind of is extruding, and a kind of is to be threaded.The binding bonding strength is low, only is used for the less reinforcing bar of diameter and connects.Be welded on high-altitude application inconvenience, and be welded with spark and pollute and under some environment, can not use.Extruding needs complicated connection device, inconvenient operation.It is easy to operate to be threaded, and can use in any environment, but the joint that is threaded will be processed four screw threads (two internal threads and two external screw threads), and processing capacity is big, and cost is than higher.

The objective of the invention is: a kind of method of attachment is provided, uses this method two reinforcing bars can be coupled together easily, and also the bonding strength height, link cost is low, and no-spark, pollution-free is applicable to any environment.

Technical scheme of the present invention is: the side such as the worker of steel bar end are gone out some teeth groove, the side of two reinforcing bar splines is closed up and with sleeve the teeth groove coupling part of two reinforcing bars is forced together and compress, thereby two reinforcing bars are coupled together securely.

The present invention compares with background technology, and the beneficial effect that has is: relatively bonding strength is much higher with binding in this method of attachment.Compare with welding, easy to operate, applicability is wide, the bonding strength height, and link cost is low.Compare except having its whole advantages with extruding, and easy to operate.This method of attachment is compared with being threaded, and processing capacity is little, and is easy to process, and a joint only need be processed the sleeve of two tooth bars and one or two unthreaded hole, thereby link cost is lower.

Below in conjunction with accompanying drawing the present invention is described in detail.

Fig. 1, structure principle chart of the present invention;

Fig. 2, another kind of structure principle chart of the present invention;

Fig. 3, the third structure principle chart of the present invention;

A kind of axial view of Fig. 4, bindiny mechanism;

The another kind of axial view of Fig. 5, bindiny mechanism;

The third axial view of Fig. 6, bindiny mechanism.

As shown in Figure 1, reinforcing bar 1 partly is meshing with each other together with the teeth groove of reinforcing bar 2 terminations, and teeth groove can be triangle, and is trapezoidal etc.The outside, teeth groove coupling part that sleeve 3 is enclosed within reinforcing bar 1 and reinforcing bar 2 is pressed together two reinforcing bars, thereby two reinforcing bars are coupled together.When producing in enormous quantities, because the coupling part shape less complex of sleeve 3 and reinforcing bar, the available pressure processing method is shaped fast, productivity ratio height, and stock utilization height, thereby link cost is low.Simultaneously also can be as required when pressure processing, the radial dimension of reinforcing bar coupling part be increased, to improve its bonding strength.The teeth groove of steel bar end also can mill by whirlwind to be processed, and productivity ratio is also than higher.

The connecting line inclination alpha of reinforcing bar can change in 0-20 ° of scope as required.When α=0 °, the coupling part of reinforcing bar will become two parallel tooth bars and connect.As shown in Figure 2.

As shown in Figure 3, the coupling part of reinforcing bar 1 reinforcing bar 2 is bigger in the middle of also can making, the biconial that two ends are smaller, and pressing to a time-out when two endoporus sleeve 3 that is taper just can be with the teeth groove coupling part clamping of two reinforcing bars, thereby two reinforcing bars are coupled together.Cone angle beta is generally between 0-15 °.

The shaft section shape of reinforcing bar coupling part can be: garden type, ellipse garden type, square or rectangle etc.Be illustrated in figure 4 as the garden type, Figure 5 shows that ellipse garden type, Figure 6 shows that square or rectangle, four jiaos of this type are concentrated with the stress that reduces four jiaos in sleeve with the connection of garden arc, improve bonding strength.

Above-described several syndeton can be formed different combinations as required with the shaft section shape.The coupling part of reinforcing bar 1, reinforcing bar 2 and sleeve 3 will cooperatively interact sleeve 3 can be pressed together the teeth groove coupling part of reinforcing bar 1, reinforcing bar 2, to guarantee bonding strength.

This method of attachment link cost is low, and the bonding strength height is easy to connect, uses hammer or the simple pre-clamping tool of special manual just reinforcing bar can be coupled together securely, and does not produce spark and pollution can be used for any construction environment.

Claims

1, a kind of connecting method for reinforcing bars, feature of the present invention is: the teeth groove of reinforcing bar [1], reinforcing bar [2] termination partly is connected with a joggle, with the mate locking with reinforcing bar [1], reinforcing bar [2] of one or two sleeves [3].

2, connecting method for reinforcing bars according to claim 1 is characterized in that: the axial cross section shape of reinforcing bar [1], reinforcing bar [2] mate is garden shape, ellipse garden type, square, rectangle or their combination.

3, connecting method for reinforcing bars according to claim 1 is characterized in that: reinforcing bar [1], reinforcing bar [2] are cylinder, the conical surface or the combination of the two with the joint face of sleeve [3].