CN2210964Y

CN2210964Y - Screwing-type rivet

Info

Publication number: CN2210964Y
Application number: CN 95204442
Authority: CN
Inventors: 杨英申
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-09
Filing date: 1995-03-09
Publication date: 1995-10-25
Anticipated expiration: 2005-03-09

Abstract

The utility model discloses a screwing-type rivet which comprises a screw bolt and an expanding pipe which has an open groove. One end of the screw bolt is of a wedge-shaped head, and the other end of the screw bolt is provided with outer screw-threads and an inner hexagon-shaped groove. One end of the expanding pipe is provided with inner screw threads which is matched with the outer screw threads of the screw bolt, and a flanging is arranged on the end top of the expanding pipe. The maximum outside diameter of the wedge-shaped head of the screw bolt is longer than the inside diameter of one end of the open groove of the expanding pipe. A plurality of plate articles can be riveted together or riveted on the wall surface or ground surface by the single side operation of the inner hexagon-shaped wrench. The utility model can be used with accessories such as a screw, a hook with screw threads, a pull ring, etc., and can be used as the subassembly for fixing the ceiling lamp in the interior finish.

Description

Screwing-type rivet

The utility model relates to a kind of rivet fastener, by the riveted joint of expanding, is used for being fastenedly connected between the object.

EXPANSION ANCHOR BOLTS class fastening connection piece, generally form by the expand tube of bolt, tapered cup nut and band opening slot, bolt is inserted in the expand tube, the termination is connected with tapered cup nut, swivel bolt drives tapered cup nut and moves in expand tube, tapered cup nut squeezes the opening slot of expand expand tube and distending expand tube, and EXPANSION ANCHOR BOLTS is anchored in the hole of fixation.This class EXPANSION ANCHOR BOLTS generally is made up of 3 above parts, and the hexagon head of bolt exposes outside the fixation surface, and bolt is longer than general expand tube.Not only influence attractive in appearancely, some occasion is also inapplicable.

The utility model provides the rivet of the simpler compacter expanded joint structure of a kind of structure, the multi-functional rivet that can be fastenedly connected with interior hexagonal spanner.

The utility model is twisted the formula rivet and is made up of the expand tube of a bolt and an end band opening slot.One end of bolt is a sphenocephaly, and the other end has outside thread and interior hex slot, and an end of expand tube has the internal thread that matches with the bolt outside thread, and the end heading tape has flange, and the maximum outside diameter of bolt sphenocephaly is greater than the internal diameter of expand tube opening slot one end.The following conical surface of the sphenocephaly of bolt is provided with diagonal bar.Bolt is with or without center hole, and the bottom surface of expand tube flange is provided with radial rib.The internal thread that the outside thread of bolt and expand tube match is dextrorotation or left-handed thread.The rivet of general expansion structure, two parts of its bolt and sphenocephaly form and with being threaded togather, it is made of 3 parts at least, and the hexagon head of bolt exposes outside expand tube.The utility model is twisted the formula rivet and has been overcome above defective, and it has only two parts to form, and bolt length is short, labor and material saving, and bolt is hidden in again in the expand tube, the simpler compactness of structure, flat appearance is attractive in appearance.

Accompanying drawing is the structural drawing that the utility model is twisted the formula rivet.

As shown in drawings, the stubborn formula rivet of the utility model is made up of bolt 1 and expand tube 2.End at bolt 1 is a sphenocephaly 3, and the other end has outside thread 4 and interior hex slot 5.One end of expand tube 2 has opening slot 6, and the other end has internal thread 7 to be connected with the outside thread 4 of bolt 1.There is flange 8 end of bolt 1.The maximum outside diameter of the sphenocephaly 3 of bolt 1 is greater than the internal diameter of opening slot 6 one ends of expand tube 2.The following conical surface at the sphenocephaly 3 of bolt is provided with diagonal bar 9.Bolt 1 has center hole 10, and the bottom surface of the flange 8 of expand tube 2 is provided with radial rib 11, and the internal thread 7 that the outside thread 4 and the expand tube 2 of bolt 1 matches is dextrorotation or left-handed thread.

When using the utility model to twist the formula rivet, twist the formula rivet by shown in the accompanying drawing bolt 1 and expand tube 2 being assembled together.On the object that will rivet, hole, the sphenocephaly 3 of twisting the formula screw is inserted in the hole, the flange 8 of expand tube 2 is stayed and is close to outside the hole by riveting parts, the interior hexagonal spanner swivel bolt 1 that matches with interior hex slot 5 with bolt 1, rotate in the screw of expand tube 2 by bolt 1 and to move axially, the conical surface of sphenocephaly 3 tightens together with opening slot 6 distendings of expand tube 2 and with the object at this place, and the flange 8 of expand tube 2 compresses the objects that pass expand tube 2 simultaneously, thereby reaches the purpose of riveted joint.Can prevent that owing to the conical surface under the sphenocephaly of bolt 1 has diagonal bar 9 riveted joint is loosening, the radial rib 11 of flange 8 bottom surfaces of bolt 1 can increase and by the frictional force between riveting parts, make and rivet more firmly.When screw and bolt 1 are left-handed thread, can also fit on common hand drill or the hand drill with hexagon socket head and use, bolt 1 can enter rapidly in the screw of expand tube 2, can improve work efficiency greatly.After riveted joint is good only the flange 8 of expand tube 2 be exposed at by outside the riveted joint object, so profile neat appearance can also screw in other and be with annexes such as corresponding externally threaded screw, hook, draw ring in the screw of expand tube 2, these annexes are also detachably changed, and use very convenient.When bolt 1 has center hole 10, can from center hole 10, pass electric wire, the annex that can make electrical wiring, pendent lamp or the wall lamp of interior decoration this moment uses, and has multiple function.The utility model both can be used for the riveted joint between several the plate-like articles, also can be used for the fixedly riveted joint on sheet material and metope, ground.This riveted joint only needs in the operation of the place ahead of expand tube 2 flange 8 single face, and is easy to operate.Only allow occasion when being specially adapted to construct in the single face operation.

Claims

1, a kind of stubborn formula rivet is made up of the bolt and the expand tube of band opening slot, it is characterized in that: an end of bolt is a sphenocephaly, the other end has outside thread and interior hex slot, expand tube one end has the internal thread that matches with the bolt outside thread, the end heading tape has flange, and the maximum outside diameter of bolt sphenocephaly is greater than the internal diameter of expand tube opening slot one end.

2, stubborn formula rivet as claimed in claim 1, it is characterized in that: the conical surface is provided with diagonal bar under the sphenocephaly of bolt.

3, stubborn formula rivet as claimed in claim 1, it is characterized in that: the bottom surface of expand tube flange is provided with radial rib.

4, stubborn formula rivet as claimed in claim 1, it is characterized in that: the internal thread that the outside thread of bolt and expand tube match is dextrorotation or left-handed thread.