CN2285848Y

CN2285848Y - Pull riveting nut

Info

Publication number: CN2285848Y
Application number: CN 96224120
Authority: CN
Inventors: 徐瑞华; 代辉德
Original assignee: TIANHUA (GROUP) CO SICHUAN
Current assignee: TIANHUA (GROUP) CO SICHUAN
Priority date: 1996-11-27
Filing date: 1996-11-27
Publication date: 1998-07-08
Anticipated expiration: 2006-11-27

Abstract

The utility model provides a pull riveting nut, which has a straight tubular body. A riveting spacing lug boss is arranged on an outer margin edge of an end part of the tubular body, a segment of inner screw thread is arranged at the point of the other end of the body apart from the spacing lug boss for a segment of distance, and the diameter of the inner screw thread is smaller than the inner diameter of the tubular body. An outer screw rod is used for sheathing into the segment of the inner screw thread of the pull riveting nut, and the screw rod is pulled outward by using a pull riveting gun to deform the thin wall segment of the nut and to realize riveting. The utility model has the advantages of simple structure and wide use area and is especially suitable for the use of the diametrical connection among various thin wall pipe pieces.

Description

Staking formula nut

The utility model relates to a kind of riveted joint part.

Existing riveted joint part as pulling rivet, dichotomous rivet etc., all only plays a part object is riveted together, and does not have the function that externally connects other objects again.And in all trades and professions, all have many occasions to require being connected between parts and the part.Existing a kind of practice is to weld a nut on connected piece earlier, is connected with outer part by screw rod again.The less than one of this Placement is that the working space of requirement is big, and use occasion is restricted; The 2nd, the crator of face of weld diminishes specious; The 3rd, to some thin-wall part welding difficulties, like an elephant the radially connection occasion between the thin-wall pipe that the export-oriented face of ask for something is not smoothly had projection, the mode of utilizing above-mentioned welded nut obviously is very difficult---the space is too little, welding rod can't put in the pipe and weld, tube wall thin, burn easily, simultaneously, be welded in also influence on the pipe outer wall attractive in appearance.

The purpose of this utility model provides a kind of can directly being riveted on by the staking formula nut on the fitting.

Staking formula nut of the present utility model has tubular body always, on the exterior rim of an end of tubular body, be provided with a riveted joint positive stop lug boss, the other end and positive stop lug boss at body are provided with one section internal thread at a distance of a segment distance, and the diameter of this internal thread is less than the internal diameter of tubular body.Promptly between positive stop lug boss and thread section, formed one section thin segment, can realize this staking nut as follows and by the riveted joint between the fitting: workpiece will be connect earlier and bore the through hole that its diameter and staking nut body cross section outer rim shape match at link position, the staking nut is put into the hole, it is riveted positive stop lug boss and is touched by the surface of draw piece, thread section and part thin segment pass through hole and are exposed at and are connect outside the workpiece, insert the thread section of staking nut then with a screw rod cover, the positive stop lug boss end that withstands on the staking nut with hand riveter is pulled outwardly screw rod, when pulling force surpasses the bent strong coefficient of thin segment of staking nut, this thin segment is deformed and be riveted on the another side that is connect workpiece, finish riveted joint with positive stop lug boss.

The cross section exterior rim of described staking formula nut can also be designed to wait the structure shape of polygonal exterior rim.

Still the lower position of joining with positive stop lug boss that can be on the outer wall of staking nut is provided with positioning convex strip along its axial direction, offers corresponding groove on the peritreme of workpiece being connect, and the staking nut is not rotated.

The utility model is simple in structure, and is easy to manufacture, is not subjected to spatial constraints, uses widely, and simple installation is easily gone.The radially connection that is particularly suitable between the various thin-wall pipes is used.

Provide embodiment below in conjunction with accompanying drawing:

Fig. 1 structural representation of the present utility model

Fig. 2 deformation riveting status of the present utility model schematic representation

The plan view of Fig. 3 Fig. 1

Fig. 4 regular polygon exterior rim schematic representation

Fig. 5 embodiment 2 structural representation

The left view of Fig. 6 Fig. 5

The plan view of Fig. 7 Fig. 5

Embodiment 1:

Shown in Fig. 1～3, the utlity model has the tubular body 1 of a straight tube-like, exterior rim at one end is provided with a riveted joint positive stop lug boss 2, be provided with an internal thread segment 3 at the other end and positive stop lug boss 2 at a distance of a segment distance, between thread section 3 and positive stop lug boss 2, formed the thin segment 10 for the deformation use of tubular body like this.Fig. 2 has provided this thin segment generation deformation and has been riveted on the view that is connect on the workpiece 4 (shown in the double dot dash line) to outer lug.The exterior rim 11 of the cross section of staking nut can be designed to circle, ellipse, and the regular hexagon or the shape such as square that also can be designed to as shown in Figure 4 all can.Only need to bore the through hole that matches with it on by riveting parts, the same thin segment that can be implemented in produces the deformation riveted joint.

Embodiment 2:

Present embodiment and embodiment's 1 structure is basic identical.Different is to be provided with two positioning convex strips 7 relatively at its axis of the outer wall upper edge of tubular body 6, offers the groove of two correspondences during use on by the peritreme of fitting, and raised line 7 is put into the staking nut is not rotated thereupon.

Claims

1, a kind of staking formula nut, it is characterized in that described staking formula nut has tubular body always, on the exterior rim of an end of tubular body, be provided with a riveted joint positive stop lug boss, the other end and positive stop lug boss at body are provided with one section internal thread at a distance of a segment distance, and the diameter of this internal thread is less than the internal diameter of tubular body.

2, staking formula nut as claimed in claim 1 is characterized in that the cross section exterior rim of described staking formula nut is circular exterior rim.

3, staking formula nut as claimed in claim 1, the cross section exterior rim that it is characterized in that described staking formula nut is for waiting polygonal exterior rim.

4, staking formula nut as claimed in claim 2 is characterized in that the lower position of joining with positive stop lug boss on the outer wall of described staking formula nut also is provided with positioning convex strip along its axial direction.