CN203548485U

CN203548485U - Tail-bundling rivet

Info

Publication number: CN203548485U
Application number: CN201320739205.2U
Authority: CN
Inventors: 杨荣德; 傅献军
Original assignee: ZHEJIANG COWIN FASTECH Co Ltd
Current assignee: Zhejiang Cowin Fastech CO., Ltd.
Priority date: 2013-11-20
Filing date: 2013-11-20
Publication date: 2014-04-16
Anticipated expiration: 2023-11-20

Abstract

The utility model discloses a tail-bundling rivet which comprises a rivet head and a rivet rod fixed to the rivet head. The rivet rod is composed of two segments of cylinder bodies which are different in radius. The radius of one segment of cylinder body close to the tail end of the rivet rod is small, and the tail portion of the rivet rod is concaved inwards to form a horn-shaped rivet opening. The edge of the rivet head is at least provided with a pair of elastic lugs in central symmetry, and the elastic lugs protrude towards one side of the rivet rod. The tail-bundling rivet has the advantages that the rivet rod is composed of the two portions which are different in radius, the magnitude of interference between the rivet and an installation hole is enlarged, and therefore the tail-bundling rivet can be suitable for fastening the two parts with different hole diameters; due to the design of the tail portion of the rivet rod, a solid rivet can be fixed easily like a hollow rivet, and enough strength can also be provided; due to the fact that the edge of the rivet head is provided with the elastic lugs, recovery caused by elasticity of metal can be counteracted, and therefore sufficient fastening can be achieved.

Description

A kind of Beam End rivet

Technical field

The utility model relates to a kind of rivet, is specially a kind of Beam End rivet, belongs to hardware technical field.

Background technique

Rivet is a kind of in riveted joint, utilizes self deformation or interference to connect by the part of riveting parts.Rivet is the earliest the little peg of wooden or bone system, and flow of metal body may be exactly the ancestors of our rivet known today the earliest.Certainly, they are the most ancient methods that mankind's known metal connects, can trace back to initial use wrought metal so far away, for example: the Bronze Age Egyptian tightens together six wooden quadrant riveted joints of shaped grooved wheel outside line with rivet, Greek is successfully with after the large-scale statue of bronze casting, more each parts riveted together with rivet.

1916, when the HV of British Aerospace PLC White obtain for the first time can blind riveting blind rivet patent time, it is extensive like this that people almost do not expect that this rivet can be applied today.From space flight and aviation to office machine, electronic product and Playground equipment etc., can say, this blind rivet has now become effective and firm mechanical connection method.

Conventional have R snap riveting nail, rivet for fan, take out stamen rivet (hitting stamen rivet), tree-like rivet, cup head, tack, semitubular rivet, solid rivet, sunk head rivet, self-plugging rivet, tubular-shank rivet, these normally utilize self deformation to connect by riveting parts.Rivet is to utilize the magnitude of interference of rivet and mounting hole to rivet.

Existing rivet is to consist of ailhead and nail bar, and solid rivet generally need to be used in conjunction with by rivet sleeve, and tubular-shank rivet is to fix by the nail boom end convolution outward that splits.

But this rivet has following defect:

1, solid rivet need to coordinate rivet sleeve to use, cumbersome; The intensity of tubular-shank rivet is difficult to again reach requirement;

2, the nail bar of current rivet is cylindrical body, but in actual use, needs fastening not of uniform size the causing of parts mounting hole, and therefore, the magnitude of interference of rivet and mounting hole reduces, easily fracture.

3, existing ailhead is plane by a side end face of nail bar, because rivet is metal material, has certain elasticity, by the convolution of nail bar afterbody, carrys out fastening two parts, is often difficult to fastening.

Model utility content

Order of the present utility model is for a kind of Beam End rivet is provided, to solve the problems referred to above of prior art.

The purpose of this utility model is achieved through the following technical solutions.

A kind of Beam End rivet, comprises ailhead and is fixed on the nail bar on ailhead; Described nail bar is two sections of different cylinder compositions of radius, less by one section of cylinder radius of nail bar tail end; The afterbody of described nail bar concaves and forms horn-like nail mouthful; The edge of described ailhead is at least provided with a pair of elastic ear being centrosymmetric, and described elastic ear is protruded to a side of nail bar.

Angle between described elastic ear and ailhead in obtuse angle.

During use, will follow closely bar and insert mounting hole, then with hammer, nail bar tail end be broken, due to the elastic reaction of elastic ear, excessively outwards convolution of nail bar tail end.Thereby assembling set is fixed.

The beneficial effects of the utility model are:

1, nail bar is set to two-part composition of different radii, and therefore the magnitude of interference increase of rivet and mounting hole goes for two different parts of pore size fastening;

2, the design of nail bar afterbody, can make solid rivet light fixing as tubular-shank rivet, and enough intensity can be provided again;

3, by the edge at ailhead, elastic ear is set, can offsets the recovery bringing because of metallic elastic, thus fully fastening.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A portion structure for amplifying schematic diagram of Fig. 1;

In figure: 1, ailhead 2, nail bar 3, nail mouth 4, elastic ear.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, further set forth structural feature of the present utility model.

A kind of Beam End rivet as depicted in figs. 1 and 2, comprises ailhead 1 and is fixed on the nail bar 2 on ailhead 1; Described nail bar 2 is two sections of different cylinder compositions of radius, less by one section of cylinder radius of nail bar 2 tail ends; The afterbody of described nail bar 2 concaves and forms horn-like nail mouth 3; The edge of described ailhead 1 is at least provided with a pair of elastic ear being centrosymmetric 4, and described elastic ear 4 is protruded to a side of nail bar 2.

Angle between described elastic ear 4 and ailhead 1 in obtuse angle.

During use, will follow closely bar 2 and insert mounting hole, then with hammer, nail bar 2 tail ends be broken, due to the elastic reaction of elastic ear 4, excessively outwards convolution of nail bar 2 tail ends.Thereby assembling set is fixed.

Claims

1. a Beam End rivet, comprises ailhead and is fixed on the nail bar on ailhead; It is characterized in that: described nail bar is two sections of different cylinder compositions of radius, less by one section of cylinder radius of nail bar tail end; The afterbody of described nail bar concaves and forms horn-like nail mouthful; The edge of described ailhead is at least provided with a pair of elastic ear being centrosymmetric, and described elastic ear is protruded to a side of nail bar.

2. a kind of Beam End rivet according to claim 1, is characterized in that: the angle between described elastic ear and ailhead in obtuse angle.