CN2171716Y

CN2171716Y - Removable upset bolt structure

Info

Publication number: CN2171716Y
Application number: CN 93241896
Authority: CN
Inventors: 周鸿图
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-15
Filing date: 1993-10-15
Publication date: 1994-07-13
Anticipated expiration: 2003-10-15

Abstract

The utility model relates to an expansion screw bolt structure, particularly an expansion screw bolt structure for the installation requirement of a flat and beautiful wall surface or a ground surface. The utility model comprises a sleeve part and a screw bolt part, wherein, one end of the sleeve is provided with a screw thread connected with the screw bolt, a sleeve cylinder with a thin wall is arranged near the other end and uniformly distributed rectangular holes are opened on the sleeve tube. So, the utility model can be demounted from the wall or the ground surface without breaking the flatness of the wall surface or the ground surface. The utility model has the advantages of simple structure and easy installation.

Description

Removable upset bolt structure

The utility model relates to a kind of EXPANSION ANCHOR BOLTS structure, especially refers to wall surface or surface-mounted EXPANSION ANCHOR BOLTS structure that requirement is smooth, attractive in appearance.

At present, give meter size place for cooperating wall surface, ground, give and load onto EXPANSION ANCHOR BOLTS structure (being commonly called as gecko) earlier, hang weight or install machinery for rank, modal a kind of EXPANSION ANCHOR BOLTS structure, as shown in Figure 5, head 111 forms to extending out the impact section 11 of stretching, give in the sleeve pipe 12 that is linked in larger aperture earlier, and, then can correspondence screw locknut 13 and form EXPANSION ANCHOR BOLTS 1 at the thread section 112 that impact section 11 effect ends are had; Desiring to be driven on the wall surface (or ground) 3 to this EXPANSION ANCHOR BOLTS 1, with EXPANSION ANCHOR BOLTS 1 corresponding on the wall surface (or ground) 3, continue and knocked with the corresponding EXPANSION ANCHOR BOLTS 1 projection thread section of suitable external force 112 end faces, make EXPANSION ANCHOR BOLTS 1 can be driven into wall surface (or ground) 3 inside gradually, treat that this EXPANSION ANCHOR BOLTS 1 is when 12 sections of sleeve pipes are driven into wall surface or ground 3 gradually, to be spun on nut 13 on the thread section 112 with spanner again and revolve and give packing, the sleeve pipe 12 that EXPANSION ANCHOR BOLTS 1 is had can all be driven in the wall surface (or ground) 3.Yet this EXPANSION ANCHOR BOLTS structure exists irremediable defective in practical application:

1) this kind EXPANSION ANCHOR BOLTS is knocked owing to be subjected to gravity when being driven into wall surface (or ground), so that impacts the end thread section, and produces distortion, and therefore, tightening nut advance and retreat and dismounting are difficult.

2) if will recover wall surface (or ground) flat condition, except this EXPANSION ANCHOR BOLTS is destroyed, or continue EXPANSION ANCHOR BOLTS institute projection thread section is driven into toward in, thereby the outward appearance that wall (or ground) can be had causes seminess, and influence the attractive in appearance of wall surface (or ground).

On the basis of above structure, someone creates another kind of EXPANSION ANCHOR BOLTS structure, as shown in Figure 6, this EXPANSION ANCHOR BOLTS 2 mainly will have the packing screw 21 first fit interlayer pads 22 of thread section 211 and the sleeve pipe 23 of larger aperture, then, impact thread section 211 at packing screw 21 and be inserted in the packing collar 24, EXPANSION ANCHOR BOLTS 2 is being desired to be driven on the wall surface (or ground) 30, with EXPANSION ANCHOR BOLTS 2 corresponding on the wall surface (or ground) 30, then, knock on the nut 211 with the corresponding EXPANSION ANCHOR BOLTS 2 of suitable external force, make EXPANSION ANCHOR BOLTS 2 be driven into wall (or ground) 30 inside gradually, treat that interlayer pad 22 correspondences on this EXPANSION ANCHOR BOLTS 2 lean against wall surface (or ground) 30 o'clock, can be again with packing screw 21 toward interior lockings, yet, this EXPANSION ANCHOR BOLTS 2, be driven into wall surface (or ground) 30 o'clock, need be quite careful, deform otherwise very easily make packing screw 21 impact thread sections 211, so that packing screw 21 can't be dismantled outward, therefore, this kind EXPANSION ANCHOR BOLTS 2 is a kind of structures that are not easy to be driven into.

In view of this, the purpose of this utility model provides a kind of EXPANSION ANCHOR BOLTS structure that draws off, one section expansion bending deflection with sleeve is fixed in metope or the ground, and the common attachment bolt of EXPANSION ANCHOR BOLTS available standards replaces, and simple in structure, detachable and easily installation.

The purpose of this utility model is achieved in that it comprises sleeve and bolt, and an end of its middle sleeve has and bolted tapped hole, and near to add an end be one section thin walled cylinder body, and have uniform rectangular opening thereon.

Owing to adopt such scheme, in the time of need not using the EXPANSION ANCHOR BOLTS structure, can draw off and do not destroy wall surface or ground flatness, simple in structure, install not hard.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model embodiment decomposing schematic representation.

Fig. 2 is the not stressed schematic representation of the utility model embodiment sleeve.

Fig. 3 is the stressed back of a utility model embodiment sleeve schematic representation.

Fig. 4 assembles the back schematic representation for the utility model embodiment.

Fig. 5 assembles the back schematic representation for an embodiment of prior art.

Fig. 6 assembles the back schematic representation for another embodiment of prior art.

Consult shown in Figure 1ly, present embodiment is mainly combined by sleeve 4 and bolt 5; Wherein this sleeve 4 is having many (equidistant) shape holes 41 uniformly on the barrel near effect end, and this section barrel is thin walled cylinder body, in addition the tapped hole 43 of the suitable length that is connected with bolt 5 of sleeve 4 cohesive end shapes.

When using present embodiment, consult shown in Figure 2, on metope or (ground) 7, give earlier and establish a degree of depth suitably less than the assembly hole of sleeve 4 length, subsequently, sleeve 4 is inserted in the assembly hole on this metope (or ground) 7, and this moment, the cohesive end of this sleeve 4 exposed a segment length outside metope (or ground) 7; Then, suitably apply external force on the cohesive end (end) to sleeve 4, until linking end face that makes sleeve 4 and metope (or ground) 7 flush, at this moment, because sleeve 4 is the thin walled cylinder body 42 of a segment length near effect end (the other end), and have uniform rectangular opening 41 thereon, therefore, when sleeve 4 is subjected to squeeze in the external force in the assembly hole on metope (or ground) 7, the barrel 42 of this section just is the bending deflection of outer expansion, thereby sleeve 4 just strong fix in metope (or ground) 7, as shown in Figure 3, last, can be by the thickness of location object 6, select the tired bolt 5 of suitable length, wear the tapped hole 43 of location object 6 and sleeve 4 cohesive ends, and location object 6 can be positioned on the metope (or ground) 7, as shown in Figure 4.

In sum, the utlity model has following advantage:

1) if when not using the expansion bolt structure, the user then only needs bolt is screwed out sleeve, with cement the sleeve place of the expansion bolt on the wall surface 7 is bestowed to smear to shelter from again and get final product, fill up wall surface (or ground) 7 and set up and finish not using of an expansion bolt, and the unlikely flatness that has influence on the wall surface (or ground) 7.

2) expansion bolt of the present utility model can be selected according to the thickness of location object the bolt of suitable length, and to cooperate sleeve pipe, at this, bolt needn't adopt custom-designed expansion bolt structure, but and Application standard attachment bolt.

3) the utility model substantially improved the dedicated expansion screw bolt structure shortcoming, make designs simplification, and make be suitable for convenient, reliable.

Claims

A kind of EXPANSION ANCHOR BOLTS structure that draws off comprises sleeve and bolt, it is characterized in that: an end of sleeve has and bolted tapped hole, and the close the other end is one section thin walled cylinder body, and has uniform rectangular opening thereon.