CN201428699Y

CN201428699Y - Half-thread screw with female hole hexagon spline flange surface head

Info

Publication number: CN201428699Y
Application number: CN2009201215062U
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: 2010-03-24
Anticipated expiration: 2019-06-01

Abstract

The utility model discloses a half-thread screw with a female hole hexagon spline flange surface head. The half-thread screw comprises a screw body, wherein the screw body is provided with a rod partbody and a tail end part body which are integrally molded, continuous external thread bodies with outwardly concave convex tooth space structures are radially manufactured at the head end of the rod part body, and the thread axial length of each external thread is at most equal to two thirds the length of the rod part body; continuous internal thread bodies with inwardly concave convex tooth spacefemale hole structures are axially manufactured at the tail end of the screw body, the length of each internal screw body is at least equal to that of the tail end part body, and the screw body is afourth structure with a hexagon spline flange; since inwardly concave thread holes are manufactured at the tail part, the structure is novel, and the manufacture is convenient; the apertures of the inwardly concave thread holes are moderate, a new rear output connection method is added when the performance of the original screw body is retained, and the structural strength of the original screw body is not affected; and the requirements of different connection methods can be further met by manufacturing the thread holes into threads with different specifications such as international threads,British standard threads, American standard threads, and the like.

Description

Partial thread screw with female hole hexagonal flower shape flanged surface head

Technical field

The utility model relates to the technical field of fastening piece in the five metals element, particularly spends the partial thread screw of shape flanged surface head with female hole hexagonal.

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 partial thread screw of structural strength jail and the female hole of band hexagonal flower shape flanged surface head applied widely.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: with the partial thread screw of female hole hexagonal flower shape flanged surface head, 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 2/3rds of bar portion body length at the most; 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 4th structure of hexagonal flower shape flange shape body.

The measure of taking also comprises:

The 4th above-mentioned structure front end is shaped on the 4th bar portion body, the 4th bar portion body tail end is the 4th tail end body, and the 4th tail end body border afterbody is shaped on the concave circular arc that radians such as six are arranged, the radius value of this concave circular arc equals 1/3rd of the 4th bar portion body diameter value at least; Front portion, the 4th tail end body border also is shaped on the second flange anchor ring, and end is shaped on plane of a loop in face of this second flange ring, and the second flange ring surface rear end is taken advantage of a situation according to the concave circular arc border and is shaped on the ring inclined-plane; The interior shaggy tooth cell body that the 4th structure tail end is shaped on is the 4th tapped hole, and the 4th tapped hole is positioned at the shaft core position of the 4th tail end body; The 4th tapped hole nominal diameter value equals 1/3rd of the 4th 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, 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 2/3rds of bar portion body length at the most; 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 4th structure of hexagonal flower shape flange 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, partial thread screw with female hole hexagonal flower shape flanged surface head, 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 2/3rds of bar portion body length at the most; 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 4th structure 14 of hexagonal flower shape flange shape body.

The utility model embodiment, shown in Fig. 1, Fig. 1 a, Fig. 1 b, the screw body is the 4th structure 14 of hexagonal flower shape flange shape body, the 4th structure 14 front ends are shaped on the 4th body 14a of bar portion, the 4th bar portion body 14a tail end is the 4th tail end body 14b, and the 4th tail end body 14b border afterbody is shaped on the concave circular arc 14c that radians such as six are arranged, the radius value of this concave circular arc 14c equals 1/3rd of the 4th body 14a of bar portion diameter value at least; Front portion, the 4th tail end body 14b border also is shaped on the second flange anchor ring 14e, and this second flange anchor ring 14e front end is shaped on plane of a loop, takes advantage of a situation according to concave circular arc 14c border and be shaped on the ring inclined-plane in the second flange anchor ring 14e rear end; The interior shaggy tooth cell body that the 4th structure 14 tail ends are shaped on is the 4th tapped hole 14d, and the 4th tapped hole 14d is positioned at the shaft core position of the 4th tail end body 14a; The 4th tapped hole 14d nominal diameter value equals 1/3rd of the 4th body 14a 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, spends the partial thread screw of shape flanged surface head with female hole hexagonal, 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 2/3rds of bar portion body length at the most; 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 4th structure (14) of hexagonal flower shape flange shape body.

2, the partial thread screw of the female hole of band according to claim 1 hexagonal flower shape flanged surface head, it is characterized in that: described the 4th structure (14) front end is shaped on the 4th bar portion body (14a), described the 4th bar portion body (14a) tail end is the 4th tail end body (14b), and the 4th tail end body (14b) border afterbody is shaped on the concave circular arc (14c) that radians such as six are arranged, the radius value of this concave circular arc (14c) equals 1/3rd of the 4th bar portion body (14a) diameter value at least; The 4th tail end body (14b) front portion, border also is shaped on the second flange anchor ring (14e), and this second flange anchor ring (14e) front end is shaped on plane of a loop, takes advantage of a situation according to concave circular arc (14c) border and be shaped on the ring inclined-plane in second flange anchor ring (14e) rear end; The interior shaggy tooth cell body that described the 4th structure (14) tail end is shaped on is the 4th tapped hole (14d), and the 4th tapped hole (14d) is positioned at the shaft core position of described the 4th tail end body (14a); The 4th tapped hole (14d) nominal diameter value equals 1/3rd of the 4th bar portion body (14a) diameter value at least.