CN201461679U

CN201461679U - Half-thread screw with nut-hole cross square head structure

Info

Publication number: CN201461679U
Application number: CN2009201213832U
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: 2010-05-12
Anticipated expiration: 2019-06-01

Abstract

The utility model discloses a half-thread screw with a nut-hole cross square head structure, which comprises a screw body. The screw body is provided with a stem body and a tail end body which are molded integrally, the head end of the stem body is radially equipped with a continuous external thread body with an external concave-convex tooth slot structure, thread axial length of the external thread body is no more than 2/3 of the length of the stem body, the tail end of the screw body is axially equipped with a continuous internal thread body with an internal concave-convex tooth slot nut hole structure, the length of the internal thread body is at least equal to that of the tail end body, and the screw body is a fifth structure body of a cross square head shaped body. The half-thread screw is novel in structure and fast in manufacturing by arranging a concave thread hole at the tail end, the concave thread hole is moderate in aperture, a new rear output connecting form is added, structural strength of the original screw body can not be affected on the basis of keeping properties of the original screw body, and the thread hole is manufactured into threads with different specifications, thereby meeting requirements of different connecting modes.

Description

Partial thread screw with female hole cross square spigot structure

Technical field

The utility model relates to the technical field of hardware fastening, particularly with the partial thread screw of female hole cross square spigot structure.

Background technique

General fastening pieces such as 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 cross square spigot structure 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 cross square spigot structure, 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 5th structure of cross square toes shape body.

The measure of taking also comprises:

The 5th above-mentioned structure front end is shaped on the 5th bar portion body; The 5th bar portion body tail end is the 5th tail end body, and is shaped on the criss-crossing groove of indent in the middle of the afterbody of the 5th tail end body; The interior shaggy tooth cell body that the 5th structure tail end is shaped on is the 5th tapped hole, and the 5th tapped hole is positioned at the central position of the 5th tail end body.

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 5th structure of cross 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, partial thread screw with female hole cross square spigot structure, comprise the screw body, the 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 5th structure 15 of cross square toes shape body.

The utility model embodiment, shown in Fig. 1, Fig. 1 a and Fig. 1 b, the screw body is that the 5th structure 15, the five structures 15 front ends of cross square toes shape body are shaped on the 5th body 15a of bar portion; The 5th bar portion body 15a tail end is the 5th tail end body 15b, and is shaped on the criss-crossing groove 15c of indent in the middle of the afterbody of the 5th tail end body 15b; The interior shaggy tooth cell body that the 5th structure 15 tail ends are shaped on is the 5th tapped hole 15d, and the 5th tapped hole 15d is positioned at the central position of the 5th tail end body 15b.

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 partial thread screw of female hole cross square spigot structure, 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 described screw body is the 5th structure (15) of cross square toes shape body.

2. the partial thread screw of the female hole of band according to claim 1 cross square spigot structure is characterized in that: described the 5th structure (15) front end is shaped on the 5th bar portion body (15a); Described the 5th bar portion body (15a) tail end is the 5th tail end body (15b), and is shaped on the criss-crossing groove (15c) of indent in the middle of the afterbody of the 5th tail end body (15b); The interior shaggy tooth cell body that described the 5th structure (15) tail end is shaped on is the 5th tapped hole (15d), and the 5th tapped hole (15d) is positioned at the central position of described the 5th tail end body (15b).