CN201420745Y

CN201420745Y - Full-thread screw with female screw hole square head

Info

Publication number: CN201420745Y
Application number: CN2009201213230U
Authority: CN
Inventors: 陆昱森; 陆颂荫
Original assignee: Ningbo Donggang Fastener Manufacturing Co Ltd
Current assignee: Ningbo Donggang Fastener Manufacturing Co Ltd
Priority date: 2009-06-01
Filing date: 2009-06-01
Publication date: 2010-03-10
Anticipated expiration: 2019-06-01

Abstract

The utility model discloses a full-thread screw with a female screw hole square head, which comprises a screw body. The screw body is provided with an integrally formed rod part body and a tail end part body, wherein an external thread body with a continuous external concave-convex alveolus structure is radially formed at the head end of the rod part body, and the axial length of the thread of theexternal thread body is equal to the length of the rod part body; and an internal thread body with a continuous internal concave-convex alveolus female screw hole structure is axially formed at the tail end of the screw body, the length of the internal thread body is at least equal to that of the tail end part body, and the screw body adopts a seventh structural element of a square head shaped body. The inner concave tap holes formed at the tail part are adopted, thereby resulting in novel structure and convenient manufacture; the pore diameter of the inner concave tap holes are moderate, anda new back part output connection method is added without changing the performance of the original screw body or affecting the structural strength thereof; and the tap holes are made into thread manners with different specifications, thereby satisfying different connection methods, such as metric threads, inch system threads, U.S. standard threads, etc.

Description

Full thread screw with female hole square toes

Technical field

The utility model relates to the technical field of fastening piece in the five metals element, particularly with the full thread screw of female hole square toes.

Background technique

Fastening pieces such as general screw, screw traditionally, it mainly utilizes, and a body of the screw thread of bar portion and afterbody is realized unidirectionally tightening, and tight etc. being fastenedly connected, so inherent characteristic according to these fastening pieces, we know that its ways of connecting is unidirectional, and if realize the secondary pairing of afterbody, or secondary connects, and it structurally is difficult to reach, as carrying out the secondary pairing of fastening piece afterbody really, must carry out hole processing or rod member welding operation to original fastening piece; When the actual production line was operated, it had inconvenience more like this, and working efficiency is also comparatively low.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of novel structure, making is convenient, switching performance increases, the full thread screw of structural strength jail and the female hole of band square toes applied widely.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: with the full thread screw of female hole square toes, comprise the screw body, this screw body has integrated bar portion's body and tail end body, bar portion body head end radially is shaped on the outside thread body of continuous outer concavo-convex teeth groove structure, and the screw thread axial length of this outside thread body equals bar portion body length; Screw body tail end axially is shaped on the internal thread body of the female hole structure of continuous interior shaggy tooth groove, and the length of this internal thread body equals the length value of tail end body at least, and the screw body is the 7th structure of square toes shape body.

The measure of taking also comprises:

The 7th above-mentioned structure front end is shaped on the 7th bar portion body, the 7th bar portion body tail end is the 7th tail end body, and the 7th tail end body border such as is shaped at the spanner edge that quadrilateral is arranged, and four jiaos of this spanner edge all are shaped on arc round angle, and the tail end of this spanner edge also is shaped on the rounded corner rib; The interior shaggy tooth cell body that the 7th structure tail end is shaped on is a tapped hole, and this tapped hole is positioned at the shaft core position of the 7th tail end body; Tapped hole nominal diameter value equals 1/3rd of the 7th bar portion body diameter value at least.

Compared with prior art, the utility model comprises the screw body, this screw body has integrated bar portion's body and tail end body, and bar portion body head end radially is shaped on the outside thread body of continuous outer concavo-convex teeth groove structure, and the screw thread axial length of this outside thread body equals bar portion body length; Screw body tail end axially is shaped on the internal thread body of the female hole structure of continuous interior shaggy tooth groove, and the length of this internal thread body equals the length value of tail end body at least, and the screw body is the 7th structure of square toes shape body.Advantage of the present utility model is: adopts and is shaped on concave screw hole at afterbody, and its novel structure, it is convenient to make; Its aperture of concave screw hole is moderate, when keeping former screw body performance, has increased new rear portion output Placement, and also can not influence the structural strength of former screw body; This tapped hole is made the engage thread of different size, and then can satisfy different Placements, as metric thread, inch screw thread, U.S. standard screw thread etc.

Description of drawings

Fig. 1 is vertical cross-sectional schematic of the utility model embodiment

Fig. 1 a is that schematic representation is looked on the left side of Fig. 1;

Fig. 1 b is the schematic three dimensional views of Fig. 1.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

The utility model embodiment, full thread screw with female hole square toes, comprise the screw body, this screw body has integrated bar portion's body and tail end body, bar portion body head end radially is shaped on the outside thread body of continuous outer concavo-convex teeth groove structure, and the screw thread axial length of this outside thread body equals bar portion body length; Screw body tail end axially is shaped on the internal thread body of the female hole structure of continuous interior shaggy tooth groove, and the length of this internal thread body equals the length value of tail end body at least, and the screw body is the 7th structure 17 of square toes shape body.

The utility model embodiment, shown in Fig. 1, Fig. 1 a, Fig. 1 b, the screw body is the 7th structure 17 of square toes shape body, the 7th structure 17 front ends are shaped on the 7th body 17a of bar portion, the 7th bar portion body 17a tail end is the 7th tail end body 17b, and the 7th tail end body 17b border such as is shaped at the spanner edge 17c that quadrilateral is arranged, and four jiaos of this spanner edge 17c all are shaped on arc round angle, and the tail end of this spanner edge 17c also is shaped on the rounded corner rib; The interior shaggy tooth cell body that the 7th structure 17 tail ends are shaped on is tapped hole 17d, and this tapped hole 17d is positioned at the shaft core position of the 7th tail end body 17a; Tapped hole 17d nominal diameter value equals 1/3rd of the 7th body 17a of bar portion diameter value at least.

Advantage of the present utility model is: adopts and is shaped on concave screw hole at afterbody, and its novel structure, it is convenient to make; Its aperture of concave screw hole is moderate, when keeping former screw body performance, has increased new rear portion output Placement, and also can not influence the structural strength of former screw body; This tapped hole is made the engage thread of different size, and then can satisfy different Placements, as metric thread, inch screw thread, U.S. standard screw thread etc.

Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims

1, with the full thread screw of female hole square toes, comprise the screw body, described screw body has integrated bar portion's body and tail end body, it is characterized in that: described bar portion body head end radially is shaped on the outside thread body of continuous outer concavo-convex teeth groove structure, and the screw thread axial length of this outside thread body equals bar portion body length; Described screw body tail end axially is shaped on the internal thread body of the female hole structure of continuous interior shaggy tooth groove, and the length of this internal thread body equals the length value of tail end body at least, and the screw body is the 7th structure (17) of square toes shape body.

2, the full thread screw of the female hole of band according to claim 1 square toes, it is characterized in that: described the 7th structure (17) front end is shaped on the 7th bar portion body (17a), described the 7th bar portion body (17a) tail end is the 7th tail end body (17b), and the spanner edge (17c) of quadrilateral layouts such as the 7th tail end body (17b) border is shaped on, and four jiaos of this spanner edge (17c) all are shaped on arc round angle, and the tail end of this spanner edge (17c) also is shaped on the rounded corner rib; The interior shaggy tooth cell body that described the 7th structure (17) tail end is shaped on is tapped hole (17d), and this tapped hole (17d) is positioned at the shaft core position of described the 7th tail end body (17a); Tapped hole (17d) nominal diameter value equals 1/3rd of the 7th bar portion body (17a) diameter value at least.