CN202510494U

CN202510494U - Rolling-thread combined stud

Info

Publication number: CN202510494U
Application number: CN201220189502XU
Authority: CN
Inventors: 陆颂荫
Original assignee: Ningbo Yinzhou Jianjun Machinery Technology Co Ltd
Current assignee: Ningbo Yinzhou Jianjun Machinery Technology Co Ltd
Priority date: 2012-04-28
Filing date: 2012-04-28
Publication date: 2012-10-31
Anticipated expiration: 2022-04-28

Abstract

The utility model discloses a rolling-thread combined stud, comprising a bolt (1) and a nut (2) in threaded matching with the bolt (1), wherein the bolt (1) consists of a bolt head (1.1) and a screw (1.2) which are integrally molded; the threads on the screw (1.2) are full threads; and the cross sections of the bolt head (1.1) and the nut (2) are respectively in a round shape with rolling threads on the periphery. The rolling-thread combined stud is characterized in that the center of the bolt (1) is provided with an axial through hole (3) with threads. The rolling-thread combined stud has the advantages that the position of a combined part can be adjusted without need of adding an adjusting device, the cost is low and the structure is simple.

Description

Rolled thread combination double-screw bolt

Technical field

The utility model relates to technical field of fastening, specifically is a kind of rolled thread combination double-screw bolt.

Background technique

A kind of rolled thread combination double-screw bolt is arranged at present, comprise bolt and with the bolt thread nut engaged, said bolt is made up of integrated bolt head and screw rod; The cross section of said bolt head and nut is the circle that has rolled thread on the excircle; Through this rolled thread combination double-screw bolt combiner is tightened together,, then need to increase in addition controlling device if also need regulate to the position of combiner; So not only increased cost, but also made overall structure become complicated.

The model utility content

The technical problem that the utility model will solve provides and a kind ofly can play the rolled thread combination double-screw bolt that the position of fastening combiner can be conveniently regulated in fastening effect again, and simple in structure.

In order to achieve the above object; The technological scheme that the utility model provides is: a kind of rolled thread combination double-screw bolt; Comprise bolt and with the bolt thread nut engaged, said bolt is made up of integrated bolt head and screw rod, the screw thread on the said screw rod is a Full Thread FT; The cross section of said bolt head and nut is the circle that has rolled thread on the excircle, and the center of said bolt is provided with threaded axial hole.

After adopting technique scheme; The utility model compared with prior art has the following advantages: the bolt center of the utility model rolled thread combination double-screw bolt is provided with threaded axial hole, and the utility model just can be used with the screw rod with the axial hole screw-thread fit like this; At first with the fastening fixed combination parts that need of the screw bolt and nut of the utility model; Then screw rod is passed threaded axial hole on the bolt, just can drive bolt through rotating screw bolt and move, and then drive whole combiner and move; Reach the function of regulating the combiner position; Do not need extra increase controlling device that the position of combiner is regulated, reduced cost, and simple in structure.

Description of drawings

Fig. 1 is the structural representation (half sectional view) of the utility model rolled thread combination double-screw bolt.

Fig. 2 is the schematic top plan view of the bolt of the utility model rolled thread combination double-screw bolt.

As shown in the figure: 1, bolt 1.1, bolt head 1.2, screw rod 2, nut 3, axial hole.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.

Like Fig. 1, shown in Figure 2: a kind of rolled thread combination double-screw bolt; Comprise bolt 1 and with the nut 2 of bolt 1 screw-thread fit; Said bolt 1 is made up of with screw rod 1.2 integrated bolt head 1.1, and the screw thread on the said screw rod 1.2 is a Full Thread FT, all is threaded on the outer peripheral surface of promptly whole screw rod 1.2.The cross section of said bolt head 1.1 and nut 2 is the circle that has rolled thread on the excircle, and the center of said bolt 1 is provided with threaded axial hole 3, and axial hole 3 is meant the hole of through bolt upper and lower end face here.

The utility model cooperates screw rod to use in use, and screw rod and axial hole 3 are spirally connected, and it is mobile vertically that rotating screw bolt can make rolled thread combination double-screw bolt like this, also just drive its fastening device mobile vertically.

Claims

1. double-screw bolt is made up in a rolled thread; Comprise bolt (1) and with the nut (2) of bolt (1) screw-thread fit; Said bolt (1) is made up of integrated bolt head (1.1) and screw rod (1.2); Screw thread on the said screw rod (1.2) is a Full Thread FT, and the cross section of said bolt head (1.1) and nut (2) is the circle that has rolled thread on the excircle, it is characterized in that: the center of said bolt (1) is provided with threaded axial hole (3).