CN2400619Y

CN2400619Y - Expansion bolt

Info

Publication number: CN2400619Y
Application number: CN 99254094
Authority: CN
Inventors: 洪秀仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-17
Filing date: 1999-11-17
Publication date: 2000-10-11
Anticipated expiration: 2009-11-17

Abstract

The utility model relates to an expansion screw bolt, which is composed of the screw bolt, a gasket, and a screw cap, wherein, one end of the screw bolt forms a conical head, and a rod body on the other end forms a screw thread segment. The expansion screw bolt is characterized in that a group of semicircular tubes are arranged to be sheathed on the rod body. One end of the group of semicircular tubes is formed with a convex ring edge. A circular ring is sheathed outside the convex ring edge. The group of semicircular tubes are expanded outwards without deformation and are tightly bunted inside a hole wall of a circular hole. Thus, the entire expansion screw bolt can be tightly bunted to the hole wall of the circular hole by the group of semicircular tubes so as to be fixed to a floor or inside the circular hole of a wall surface. The expansion screw bolt has the advantages of simple structure, convenient installation and disassembly, and reusability.

Description

A kind of EXPANSION ANCHOR BOLTS

The utility model relates to a kind of EXPANSION ANCHOR BOLTS.

At present, general for various objects being locked in the used EXPANSION ANCHOR BOLTS A structure of ground or metope, (see Fig. 1, shown in Figure 2) it is widely used on the various uses, and EXPANSION ANCHOR BOLTS A structure is other by a bolt A1 pipe A2, big small washer A3, A4 and nut A5 form, and bolt A1 one end is a conical head A11 and keeps out spacing for the garden of being inserted in by bolt A1 the other end tool thread section A12 pipe A2, and pipe A2 keeps out in the mouth of pipe ring edge at conical head A11 place and opens and is shaped on several profile groove A21, and make the ring edge form ring of numbers sheet A22, and be inserted in big small washer A3 by thread section A12 again, behind the A4, and screwed togather a nut A1 in thread section A12, and form a hair EXPANSION ANCHOR BOLTS A structure;

When EXPANSION ANCHOR BOLTS A is locked in ground or metope for various objects, promptly prior to after piercing the circular hole of the suitable size and the degree of depth on the metope of ground, again whole EXPANSION ANCHOR BOLTS A is placed in this circular hole, because of being subjected to the pipe A2 caliber of general EXPANSION ANCHOR BOLTS A greater than the circular hole that is pierced, causing hammer to beat in bolt A1 can squeeze into whole EXPANSION ANCHOR BOLTS A in the Yu Yinkong, in beaing bolt A1 process, easily often cause bolt A1 to produce distortion, and nut A5 can't be screwed with the thread section A12 of bolt A1, can't be locked in ground or metope for various objects, and then must dismantle can't use or EXPANSION ANCHOR BOLTS A is installed again again in ground or metope, then cause the inconvenience in the whole EXPANSION ANCHOR BOLTS A construction and installation;

Moreover, after EXPANSION ANCHOR BOLTS A is installed in the circular hole of ground or metope, be the thread section A12 of the bolt A1 of nationality screw togather nut A5 towards ground or the metope direction rotate, move simultaneously toward conical head A11 direction and make bolt A1 be inserted in pipe A2, make under the dilating effect of mouth of pipe ring edge of pipe A2 via conical head A11, and make a mouth of pipe ring A22 edge toward extending out out distortion and pushing against in hole, garden hole wall (as shown in Figure 3), whole EXPANSION ANCHOR BOLTS A is fixed in the circular hole of ground or metope, when the EXPANSION ANCHOR BOLTS A of ground or metope does not use, because of beaten by pipe A2 to enter in circular hole and the mouth of pipe ring plate A22 edge of pipe A2 toward extending out out distortion and pushing against in the circular hole hole wall, so this EXPANSION ANCHOR BOLTS A is difficult for being pulled down and can't being reused again by ground or metope, and cause EXPANSION ANCHOR BOLTS A to residue in ground or metope, cause suitable not attractive in appearance and dangerous.

The purpose of this utility model provides a kind of simple in structure, easy installation and removal, and reusable EXPANSION ANCHOR BOLTS.

The utility model is achieved in that

A kind of EXPANSION ANCHOR BOLTS is made up of bolt, packing ring and nut etc., and bolt one end is a conical head, the other end shaft is formed with a thread section, it is characterized in that: be provided with one group of semicircle pipe and be sleeved on the shaft, this group semicircle Guan Yiduan is formed with convex ring edge, and the place is with annulus at convex ring edge.

Bolt one end of EXPANSION ANCHOR BOLTS is a conical head, conveniently to push the usefulness of this group semicircle pipe open, the other end shaft is formed with a thread section, and outside shaft, one group of semicircle pipe is sleeved on shaft by an annulus, and this group semicircle Guan Yiduan is formed with a convex ring edge, and be inserted in big small washer in the end that bolt has a thread section, and large washer is supported be affixed on the convex ring edge of this group semicircle pipe, be screwed together in thread section with nut again and fix, satisfy that bolt by EXPANSION ANCHOR BOLTS is overlapped should after organizing the circular hole that the semicircle pipe is installed on ground or metope, this group semicircle pipe is toward extending out out and indeformable and push against in the circular hole hole wall, can organize the semicircle pipe by this for whole EXPANSION ANCHOR BOLTS pushes against in the circular hole hole wall, and be fixed in the circular hole of ground or metope, reach effect easy for installation and reusable.

Fig. 1 is the stereo appearance figure of prior art structure.

Fig. 2 is for being the sectional drawing of prior art structure.

Fig. 3 is prior art structure expansion back schematic representation.

Fig. 4 is a three-dimensional exploded view of the present utility model.

Fig. 5 is a stereo appearance figure of the present utility model.

Fig. 6 is the sectional drawing of model utility.

Fig. 7 for the novel expansion of this usefulness after schematic representation.

Fig. 8 implements illustration for the utility model expansion back.

Please cooperate and consult Fig. 4, shown in Figure 5: a kind of EXPANSION ANCHOR BOLTS, this EXPANSION ANCHOR BOLTS 1 is made up of a bolt 11, one group of semicircle pipe 12, annulus 13, big

small washer

14,15 and nut 16, being provided with one group of semicircle pipe 12 is sleeved on the shaft, these group semicircle pipe 12 1 ends are formed with

convex ring edge

121, and 121 places are with annulus 13 at convex ring edge; Bolt 11 1 ends are a conical head 111, conveniently to push the usefulness of this group semicircle pipe 12 open, the other end shaft is formed with a thread section 112, and outside shaft, one group of semicircle pipe 12 is sleeved on shaft by an annulus 13, and these group semicircle pipe 12 1 ends are formed with a convex ring edge 121, and be inserted in big

small washer

14,15 in the end that bolt 11 has a thread section 112, and make large washer 14 support the convex ring edge 121 that is affixed on this group semicircle pipe 12, be screwed together in thread section 112 and fix it with nut 16 again, and form an EXPANSION ANCHOR BOLTS 1.

When EXPANSION ANCHOR BOLTS 1 is locked in ground 3 or metope for various objects 2, behind the circular hole 31 that pierces the suitable size and the degree of depth on ground 3 or the metope, again whole EXPANSION ANCHOR BOLTS 1 is placed in this circular hole 31, and organize because of this of EXPANSION ANCHOR BOLTS 1 that half garden manages 12 calibers and will organize half garden pipe 12 annulus 13 that are sleeved on shaft is less than piercing circular hole 31, can very convenient whole EXPANSION ANCHOR BOLTS 1 amount be gone in the circular hole 31, and need not beat by hammer as the prior art structure, whole EXPANSION ANCHOR BOLTS 1 squeezed in the circular hole 31.And then can prevent that gecko nail 1 is installed in 31 internal procedures of hole, garden and deform, reach the convenience in EXPANSION ANCHOR BOLTS 1 construction and installation.

Moreover, after in EXPANSION ANCHOR BOLTS 1 is placed in circular hole 31, promptly with the thread section 112 of bolt 11 the nut that screwed togather 16 towards ground 3 or the metope direction rotate, and this group semicircle pipe 12 of 11 fits of bolt is moved simultaneously toward conical head 111 directions, and under the dilating effect by conical head 111, and semicircle pipe 12 is opened and the indeformable while outward, and push against in circular hole 31 hole walls 32, make whole gecko nail 1 organize semicircle pipe 12 and push against, and be fixed in the circular hole 31 of ground 3 or metope (seeing Fig. 7, shown in Figure 8) in circular hole 31 hole walls 32 by this.

In ground 3 or the EXPANSION ANCHOR BOLTS 1 of metope when not using, after then earlier a nut 16 of locking usefulness being unscrewed, can take off by the object 2 that EXPANSION ANCHOR BOLTS 1 lock onto ground or metope, with convenient with bolt 11 knock move toward hole, garden 31 after, and make conical head 111 break away from this group semicircle pipe 12 simultaneously, even should produce loosening by group semicircle pipe 12, and can't push against again behind circular hole 31 hole walls 32, can very convenient whole EXPANSION ANCHOR BOLTS 1 be pulled down by taking out in the circular hole 31, and outside can reusing again, also do not contain and cause EXPANSION ANCHOR BOLTS 1 to residue in the circular hole 31 of ground 2 or metope, safety again promptly quite attractive in appearance.

The utility model has the advantages that: simple in structure, easy installation and removal, also reusable.

Claims

A kind of EXPANSION ANCHOR BOLTS is made up of bolt, packing ring and nut, and bolt one end is a conical head, the other end shaft is formed with a thread section, it is characterized in that: be provided with one group of semicircle pipe and be sleeved on the shaft, this group semicircle Guan Yiduan is formed with convex ring edge, and the place is with annulus at convex ring edge.