CN2101792U

CN2101792U - Rivet with quarter-flower shape

Info

Publication number: CN2101792U
Application number: CN 91215919
Authority: CN
Inventors: 王正耀; 王学孟; 汤晓霞; 徐德鸿
Original assignee: Shanghai Special Shaped Rivet Factory
Current assignee: Shanghai Special Shaped Rivet Factory
Priority date: 1991-09-19
Filing date: 1991-09-19
Publication date: 1992-04-15

Abstract

The utility model discloses a rivet with quarter-flower shape; the usually used rivet is only suitable for fastening and connecting two structural members of plane shape in the riveting connecting. The utility model is characterized in that a rivet is composed of a rivet body and a rivet rod having four hems; under the action of pull riveting, the rivet body is gradually cut into petal shape until the rivet rod is burst and the structural member is fastened. With reasonable structure and high strength, the rivet with quarter-flower shape is suitable for the fastening and connecting of metal or non-metal non-planar means and metal plane means.

Description

Rivet with quarter-flower shape

The utility model relates to a kind of rivet, particularly relates to a kind of four rivets of blooming.

In being connected of metal and metal or metal and nonmetallic structural member, people have been extensive use of rivet and have connected.Adopt in the operating process of riveted joint connection, two that must make rivet on every side with repeatedly closely connected by the riveting member.Present widely used rivet all is to rivet on the member of two plane shapes, therefore, generally can both meet the operation requirement of riveted joint, but, on the member of molded non-planar, rivet, just be difficult to the fastening requirement that reaches desirable, like this, the using scope of existing rivet just is subjected to certain restriction.

The purpose of this utility model is that a kind of improved rivet will be provided, and eliminates above-mentioned deficiency, is implemented between the member of nonplanar member and metal flat to rivet.

To achieve the above object, the utility model proposes following four design proposals of blooming rivet: this four rivet of blooming comprises rivet body and rivet bar.Point of rupture top at described rivet bar is shaped on four edges.Described rivet body is subjected under the staking effect at rivet bar, and rivet body is four shapes of blooming.

The utility model has improved existing rivet, adopted novel fastening form, it is rational in infrastructure, easy to use, not only can between the member on metal and metal, metal and nonmetallic plane, rivet, and can also rivet at the part of the member of metal or nonmetallic nonplanar member and metal flat.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is of the present utility model four structural representations of blooming rivet.

Fig. 2 is of the present utility model four schematic representation of rivet body of blooming rivet.

Fig. 3 is of the present utility model four schematic representation of rivet bar of blooming rivet.

Fig. 4 is the rear view of Fig. 3.

Fig. 5 is of the present utility model four working state schematic representations of blooming rivet.

Fig. 6 is that the axle of Fig. 5 is surveyed schematic representation.

Describe in detail according to four details and the working conditions of blooming rivet that the utility model proposes below in conjunction with accompanying drawing.

Referring to Fig. 1 and Fig. 2, this four rivet 1 of blooming is made of rivet body 2 and rivet bar 3.

Rivet body 2 is the garden post shapes, one end of the rivet body 2 of garden cylindricality is extended with a shade 4 that is mushroom-like, the through hole that a garden cylindricality is arranged in the rivet body 2, garden cylindricality through hole and rivet bar 3 secure fit in the rivet body 2, the wall 5 of rivet body 2 has certain thickness, its wall 5 can be sheared by rivet bar 3 under the staking effect.

With reference to Fig. 3 and Fig. 4, a point of rupture 6 is arranged at the top of rivet bar 3, is processed with four edges 7,8,9 and 10 between the head of rivet bar 3 and the point of rupture 6.

Rivet bar 3 is to insert in the garden cylindrical hole of rivet body 2, and is fixedly connected with rivet body 2 formation.

Referring to Fig. 5 and Fig. 6, during use, earlier member 11,12 is holed by the bore diameter requirement, the hole of being bored, must be vertical with riveted joint member 11,12, then, rivet 1 is put into hole-drilled member 11,12, again the underpart of rivet bar 3 is inserted in the hand riveter muzzle, under the staking effect, rivet body 2 is sheared respectively by the four edges 7,8,9 and 10 of rivet bar 3 upper end portions gradually, and rivet body 2 is cut into four, simultaneously, to turning up, be four shapes of blooming, broken until rivet bar 3, staking finishes, and member 11,12 is fastened.

Claims

1, a kind of four rivets 1 of blooming, it is made up of rivet body 2 and rivet bar 3, it is characterized in that point of rupture 6 tops of above-mentioned rivet bar 3 are provided with four edges 7,8,9 and 10, and rivet body 2 is four shapes of blooming after rivet bar 3 is subjected to the pulling force motion.