CN202787513U

CN202787513U - Anchor bolt

Info

Publication number: CN202787513U
Application number: CN 201220501658
Authority: CN
Inventors: 王钢
Original assignee: DALIAN YIXING ENERGY TECHNOLOGY Co Ltd
Current assignee: DALIAN YIXING ENERGY TECHNOLOGY Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-03-13
Anticipated expiration: 2022-09-28

Abstract

The utility model discloses an anchor bolt and relates to anchoring parts for building construction. The anchor bolt comprises an anchoring disc, an elastic self-expanding anchor stock and rigid sleeves. The elastic self-expanding anchor stock is a diameter variable rod, one end of the diameter variable rod is a diameter variable end to form a stop cushion block, and the other end of the diameter variable rod is a self-expanding end provided with a cross-shaped mouth with a certain depth. When the cross-shaped mouth is restrained, four rod-shaped anchor jaws which can be drawn close to each other are formed, and when the cross-shaped mouth is opened, four hook-shaped anchor jaws are formed. The movable rigid sleeves are sleeved on the rod-shaped anchor jaws and provided with sleeve discs at the positions of clamping mouths. One end of the stop cushion block is fixedly connected with the anchoring disc, and the other end of the stop cushion block is connected with the sleeve discs when anchoring movement is stopped. The tail portion of the self-expanding end of the elastic self-expanding anchor stock is a sharp end. The anchor bolt is used for anchoring of a cast-in-situ concrete big mould built-in steel wire net rack heat insulation system, overcomes the defects in the prior art, not only ensures sufficient tension force, but also controls the gap between a steel wire net rack and a heat insulation plate, and reserves sufficient thickness of plaster coating, and at the same time, reduces cost of materials, and improves construction efficiency.

Description

A kind of crab-bolt

Technical field

The utility model relates to the building operations anchoring piece, especially relates to a kind of large die built-in steel wire net rack heat insulation system anchoring crab-bolt of inserting in-situ concrete wall.

Background technology

It is solid to adopt " L " type or " U " steel bar that its steel wire net rack thermal-insulating board is manually tied up in the existing cast-in-situ concrete large die built-in steel wire net rack heat insulation system, and material cost is high, and efficiency of construction is low.Simultaneously, under the effect of cast-in-situ concrete lateral pressure, be difficult to guarantee reserve between steel wire net rack and the warming plate enough depths of plastering.

Summary of the invention

For above existing problems, the utility model aims to provide a kind of cast-in-situ concrete large die built-in steel wire net rack heat insulation system anchoring piece, this anchoring piece can overcome the deficiencies in the prior art, not only can guarantee enough draw knot forces, can also control steel wire net rack and warming plate gap, reduce material cost, improve efficiency of construction.

For achieving the above object, the utility model provides a kind of crab-bolt, it comprises anchoring disk 1, elasticity is from anchor pole 2 and a rigid casing 3, elasticity is a reducing bar from an anchor pole 2, its end is the reducing end, consist of and stop cushion block 4, the other end is from Zhang Duan, have the cross mouth 5 of certain depth, form four shaft-like anchor flukes 6 that close up when being tied, form four hook-shaped anchor flukes 7 when opening, cover has movably rigid casing 3 on the shaft-like anchor fluke 6, rigid casing 3 is provided with sleeve pipe disk 8 at the bayonet socket place, stops that an end of cushion block 4 is fixedly connected with anchoring disk 1, the other end when the anchoring campaign stops and sleeve pipe disk 8 join.Elasticity is most advanced and sophisticated 9 from the afterbody from Zhang Duan of an anchor pole 2.

Crab-bolt of the present utility model is opened after utilizing elastomeric material to lose constraint automatically, increases the bonding frictional force (bond stress) with concrete material, reaches predetermined anchorage effect, and utilizes and stop that cushion block keeps somewhere certain gap between steel wire net rack and warming plate.

The crab-bolt that the utility model provides, it is simple in structure, and is easy to manufacture.Tying up in the past solid one square metre heat insulation system needs 5～6 of the reinforcing bars of diameter 6 mm, length 350～500mm, only needing now to adopt 5～6 crab-bolts to carry out anchoring just can deal with problems, reduced greatly material cost, improved efficiency of construction, not only reach in the anchor bolt preburied concrete, also make the enough depths of plastering of reservation between steel wire net rack and the warming plate simultaneously.

Description of drawings

The utility model has 3 accompanying drawings.

Fig. 1 is that crab-bolt is at the structure chart of elasticity when an anchor pole is subjected to the rigid casing constraint;

Fig. 2 is the structure chart of elasticity when an anchor pole is subjected to external force constraint;

Fig. 3 is that crab-bolt is at the structure chart of elasticity when an anchor pole disengaging rigid casing constraint is opened.

Among the figure: 1-anchoring disk, 2-elasticity is an anchor pole certainly, the 3-rigid casing, 4-stops cushion block, 5-cross mouth, the shaft-like anchor fluke of 6-, the hook-shaped anchor fluke of 7-, 8-sleeve pipe disk, 9-is most advanced and sophisticated; A-sleeve pipe direct of travel.

The specific embodiment

As shown in Figure 1, crab-bolt is comprised of from an anchor pole 2, rigid casing 3 three parts anchoring disk 1, elasticity, and rigid casing 3 is provided with sleeve pipe disk 8 at the bayonet socket place, 3 pairs of elasticity of rigid casing retraining from Zhang Duan from an anchor pole 2 under original state.Elasticity links together from anchor pole 2 a usefulness welding method and anchoring disk 1, and the length of anchor pole is determined respectively according to actual requirement of engineering.Because main bearing capacity needs anchoring disk 1 and sleeve pipe disk 8 to bear, for guaranteeing bearing capacity, their diameter should be not less than 50mm.

Elasticity among Fig. 2 is a reducing bar from an anchor pole 2, left end reduced diameter portion formation stops cushion block 4, in the anchoring campaign, play position-limiting action, consider the enough depths of plastering of reservation between steel wire net rack and warming plate, stop that the length of cushion block 4 is decided to be 10mm, right-hand member has the cross mouth 5 of the about 50mm of the degree of depth, in the process, under external force constraint, four rod-type anchor flukes 6 of anchor pole right-hand member close up, its right-hand member afterbody strikes out tip 9, and effect is to make the anchoring campaign more smoothly with quick.

In install operation process, be to adopt manpower that crab-bolt is inserted in the large die built-in steel wire net rack heat insulation system.As shown in Figure 3, this moment, elasticity was passed large die built-in steel wire net rack heat insulation system from an anchor pole 2 and rigid casing 3, sleeve pipe disk 8 is with after warming plate in the large die built-in steel wire net rack heat insulation system contacts, rigid casing 3 stop motions, elasticity continues motion from an anchor pole 2, certainly open anchor pole 2 after an end disengaging rigid casing 3 fetters when elasticity, automatically open, form hook-shaped anchor fluke 7.Anchor pole move to spacing after-be sleeve pipe disk 8 when stopping that cushion block 4 contacts, the anchor pole stop motion, the anchoring campaign stops.

Claims

1. crab-bolt, it is characterized in that, it comprises anchoring disk (1), elasticity is from anchor pole (2) and a rigid casing (3), described elasticity is a reducing bar from an anchor pole (2), its end is the reducing end, consist of and stop cushion block (4), the other end is from Zhang Duan, have the cross mouth (5) of certain depth, form four shaft-like anchor flukes (6) that close up when being tied, form four hook-shaped anchor flukes (7) when opening, the upper cover of described shaft-like anchor fluke (6) has movably rigid casing (3), described rigid casing (3) is provided with sleeve pipe disk (8) at the bayonet socket place, the described end of cushion block (4) that stops is fixedly connected with described anchoring disk (1), the other end when the anchoring campaign stops and described sleeve pipe disk (8) join.

2. a kind of crab-bolt according to claim 1 is characterized in that, described elasticity is most advanced and sophisticated (9) from the afterbody from Zhang Duan of an anchor pole (2).