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Half-round head rivet

A semi-circular head and rivet technology, applied in rivets and other directions, can solve the problems of high strength, scrapped rivets, bending, etc., and achieve the effect of preventing bending, not easy to bend, and reducing strength

Inactive Publication Date: 2015-04-22
CHANGZHOU JINHAIJI MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the riveting process, the general rivet rod bears a large force, especially the rivet rod with a thinner diameter, which often bends during the riveting process, resulting in the scrapping of the rivet

Method used

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  • Half-round head rivet

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Effect test

Embodiment 1

[0019] A half-round head rivet, comprising a rivet cap 1 and a rivet rod 2 connected with the rivet cap 1, the rivet rod 2 includes a joint transition end 3, and the rivet cap 1 connects to the willow through the joint transition end 3 The nail rod 2 is connected, and the diameter of the connecting transition end 3 is larger than that of the rivet rod 2; the peripheral surface of the lower end of the rivet rod 2 is evenly distributed in the axial direction with a number of reinforcing ribs 4 protruding from the peripheral surface of the riveting rod 2. The rivet cap 1 is in an inverted hemispherical shape. The reinforcing rib 4 is a rectangular strip formed by protruding from the surface of the rivet rod 2 . The rivet shank 2 has a conical penetration. The length of the rivet rod 2 is defined as L1, and the length of the connecting transition end 3 is defined as L2, then L1=15cm, L2=1.5cm. .

[0020] In the above scheme, the rivet cap and the rivet rod are connected by con...

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Abstract

The invention discloses a half-round head rivet. The half-round head rivet comprises a rivet cap (1) and a rivet rod (2) connected with the rivet cap (1). The rivet rod (2) comprises a linkage transition end (3), and the rivet cap (1) is connected with the rivet rod (2) through the linkage transition end (3); the diameter of the linkage transition end (3) is larger than that of the rivet rod (2); and a plurality of reinforcing protruding ribs (4) protruding out of the circumferential face of the rivet rod (2) are evenly distributed in the circumference face of the lower end of the rivet rod (2) in the axial direction. The rivet cap is connected with the rivet rod through the linkage transition end, the reinforcing protruding ribs are arranged on the circumferential face of the lower end of the rivet rod in the axial direction, force borne by the rivet rod can be reduced, stress strength of the rivet rod is enhanced, the rivet rod is effectively prevented from bending, and therefore the riveting efficiency is improved, and the rejection rate of the rivet is reduced.

Description

technical field [0001] The invention relates to a rivet, in particular to a half round head rivet. Background technique [0002] A rivet is a metal rod-shaped part with a cap on one end. After penetrating the connected components, the outer end of the rod is punched and pressed out to press and fix the components. Round head rivets, also known as round head rivets, are the most widely used riveting fasteners for riveting fasteners on steel structures such as boilers, bridges, and containers. The characteristic of riveting is that it cannot be disassembled. If the two riveted parts are to be separated, the rivets must be destroyed. Refined rivets have small surface roughness and high dimensional accuracy, and are used in occasions that require high dimensional accuracy and surface conditions. During the riveting process, the general rivet rod bears a relatively large force, especially the rivet rod with a thinner diameter, which often bends during the riveting process, thu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/04
CPCF16B19/04
Inventor 时雪琴
Owner CHANGZHOU JINHAIJI MACHINERY MFG
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