CN2673981Y

CN2673981Y - Net like grain clamp apparatus of anchor

Info

Publication number: CN2673981Y
Application number: CN 200320131499
Authority: CN
Inventors: 赵克政; 张继文; 苏强
Original assignee: Liuzhou OVM Machinery Co Ltd
Current assignee: Liuzhou OVM Machinery Co Ltd
Priority date: 2003-12-13
Filing date: 2003-12-13
Publication date: 2005-01-26
Anticipated expiration: 2013-12-13

Abstract

The utility model provides a net like clamping piece of anchor which matches with an FRP rib or a rope, relating to a clamping piece of a prestressed clamping piece type anchor used in building construction; the clamping piece is two pieces or three pieces type. The net like clamping piece of anchor is characterized in that the inner hole surface of a clamping piece (2) is provided with a texture (3) which is formed after a levogyrate tap and a dextrogyrate tap respectively tapping a tooth. The net like clamping piece of anchor of the utility model adopts the structure so as to cause the contact area between the clamping piece and the FRP rib or the rope is a rough surface; as a consequence, the friction force between the clamping piece and the FRP rib or the rope is increased, and the pressure of the clamping piece toward the FRP rib or the rope is reduced; the net like clamping piece of anchor can not only avoid the phenomenon of sliding shredded caused by spraining the FRP rib or the surface of the rope, but also avoid crushing the FRP rib or the rope; the reliability of anchoring is improved.

Description

The reticulate pattern anchor clipper

Technical field

The utility model relates to a kind of building operations prestressed anchor assembly, particularly a kind of and FRP muscle or the matching used anchor clipper of rope.

Background technology

The prestressed anchor of anchoring prestress wire consumption maximum is the intermediate plate anchor in the market, this ground tackle is by anchor plate, anchor slab and intermediate plate are formed, the intermediate plate bore area has the screw thread that forms after the tapping, development along with prestressing technique, set about research both at home and abroad and used that fibre reinforced composites---FRP muscle or rope replace common prestress wire, because the shearing resistance and the compressive strength of FRP muscle or rope are lower, as still continue to use existing the intermediate plate of structure, to produce following deficiency: the one, the shear strength of FRP muscle or rope is lower, intermediate plate internal thread thread form is thinner triangle, when stressed, may pull FRP muscle or rope surface, cause the stripped thread phenomenon; The 2nd, the compressive strength of FRP muscle or rope is lower, under powerful chucking power, easily breaks FRP muscle or rope.

Technology contents

The technical problems to be solved in the utility model is: solve and existingly to have pointed tooth internal thread anchor clipper and can not adapt to grip FRP muscle or rope: when stressed, may pull FRP muscle or rope surface, cause the stripped thread phenomenon or under powerful chucking power, easily break the problem of FRP muscle or rope, a kind of both can avoid pulling in stretching process FRP muscle or rope surface are provided, cause the stripped thread phenomenon, can avoid again breaking FRP muscle or rope, improve the reticulate pattern anchor clipper of anchorage reliability.

The technical scheme that solves its above-mentioned technical problem is: a kind of reticulate pattern anchor clipper, two or three-chip type is characterized in that: the bore area of intermediate plate has the reticulate pattern that is formed after the tapping respectively by left-handed and dextrorotation screw tap.

Because tooth is the reticulate pattern that is formed after the tapping respectively by left-handed and dextrorotation screw tap in the anchor clipper of the utility model, making the contact surface between intermediate plate and FRP muscle or the rope like this is rough surface, thereby increased the frictional force between intermediate plate and FRP muscle or the rope, reduce the pressure of intermediate plate to FRP muscle or rope, FRP muscle or rope surface both can have been avoided pulling, cause the stripped thread phenomenon, can avoid again breaking FRP muscle or rope, improved anchorage reliability.

Description of drawings:

Fig. 1: the utility model reticulate pattern anchor clipper structural representation;

The specific embodiment:

Embodiment:

A kind of reticulate pattern anchor clipper, two or three-chip type, intermediate plate (2) bore area has the reticulate pattern that forms after the tapping, and this reticulate pattern is the reticulate pattern (3) that is formed after the tapping respectively by left-handed and dextrorotation screw tap, and among the figure, (1) is for being positioned at the constraint circle of the big end afterbody of intermediate plate.

As a kind of conversion of the utility model embodiment, the position of described constraint circle can also change, and big end or small end on the intermediate plate can also have vertical elastic groove.

Claims

1, a kind of reticulate pattern anchor clipper, two or three-chip type is characterized in that: the bore area of intermediate plate (2) has the reticulate pattern (3) that is formed after the tapping respectively by left-handed and dextrorotation screw tap.