CN2382884Y

CN2382884Y - Improved riveting nut

Info

Publication number: CN2382884Y
Application number: CN 99214835
Authority: CN
Inventors: 李锡萤
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-05
Filing date: 1999-07-05
Publication date: 2000-06-14
Anticipated expiration: 2009-07-05

Abstract

The utility model provides an improved riveting screw cap, particularly to the screw cap, of which the inner side surface of a cap head is convexly provided with a plurality of pointed cone parts. Internal screw threads are arranged inside a central hole post of the screw cap simultaneously. In addition, a tube part with a thinner thickness is extended out. When the riveting screw cap is nailed and attached to an object, the central hole post is penetrated through a prearranged hole first. While the pointed cone parts can be fixedly nailed to the object, and the tube part can be riveted and pressed by a broaching hole. The riveting screw cap can be fixedly arranged on the object firmly, and is combined with other objects by the match and the screw fixation of a screw bolt simultaneously.

Description

Improved riveted nut

The utility model relates to a kind of improved riveted nut.

Nut at present commonly used sees also Fig. 1, and it is that nut 1 itself is provided with center hole post 11, and is provided with internal thread 110 in the center hole post 11, and is provided with a plurality of tack claws 121 that curve setting through punching at the edge of the cap head 12 of nut 1., be earlier its center hole post 11 to be aimed at default hole on article, and follow closely and consolidate if when being fixedly arranged on the article when it, tack claw 121 is hammered in the article.Yet nut 1 structure that this kind is commonly used, because of its this tack claw 121 is to come in addition cutting bending to form by the mould on the punch press, if mould has wearing and tearing slightly, tack claw 121 can't be maintained on the correct angle of 90 ° of bendings, and have the not positive phenomenon of deflection, so when nut 1 desire nail is attached on the article default hole, tack claw 121 have slightly the angle of deflection easy tack claw 121 is produced can't follow closely attached and cause crooked situation of toppling over take place.And tack claw 121 is provided with multi-disc, if wherein a slice has above-mentioned condition to take place, then can make the whole nut 1 and the hole of article can't maintain same center line, that is the crooked nail of nut 1 generation is attached, makes its bolt 4 can't align spiral shell with the internal thread 110 of center hole post 11 admittedly.Can maintain under the good level for bending angle again tack claw 121, be that edge thickness with cap head 12 is designed to thinner, to guarantee that the mould on its punch press is difficult for frayed, right this measure makes the weakened of tack claw 121 again, no matter following closely attached or be subjected to also to change relatively on the force intensity weak and crooked easily.Other has a riveted screw (as shown in Figure 2) commonly used, its main structure is that volution 8 is to form cap head 81 by an end, can rest on desire fixing chair back plate or seating pad one side, the volution external diameter 82 that closes on cap head 81 positions is into non-just round shape, it can become closely attached in chair back plate or the default hole of seating pad, the pipe portion 83 of holding into less thickness in addition of volution 8, but pipe portion 83 reaming rivetings at the opposite side of backboard 3, the internal thread 831 of volution 8 can screw for bolt 4.But this structure still has following defective, though volution external diameter 82 is into non-just round shape, but close attachment is in backboard or the default hole of seating pad, right is to make the non-just round volution external diameter 82 of volution 8 can squeeze in the above-mentioned hole smoothly, so the size that its non-just round volution external diameter 82 outwards is convexly equipped with is limited, so when volution 8 is subjected to big external force, and when the material of chair plate is relatively poor, then can make this volution 8 not produce the phenomenon of rotation because of the setting of its non-just round volution external diameter 82, and then bolt 4 can't be fixedly arranged in the screw thread 83 of volution 8, can't reach with chair back plate or seating pad is certain combines.

In sum, there is following shortcoming in existing nut commonly used:

1, follow closely when attached, easily crooked, it is solid to make bolt can't align spiral shell with the interior rib-loop of center hole post;

2, can not guarantee to combine really between the fixing article of nut and its desire, not produce the phenomenon of rotation.

The purpose of this utility model be to provide a kind of be difficult for crooked, can guarantee that cap head volution can combine with chair back plate or seating pad reliably and not rotate, and nut and the concentric solid riveted nut of spiral shell that aligns of bolt.

Above-mentioned purpose of the present utility model is realized by following technical proposals:

A kind of improved riveted nut, it is the riveted nut of a tool cap head, this riveted nut has a center hole post, is provided with in the center hole post to supply the solid internal thread of bolt spiral shell, it is characterized in that: be equipped with a plurality of cone shape pointed cone portion on the inner side surface of the cap head of this riveted nut; This center hole post back segment is to extend can supply by the thin pipe portion of the wall thickness of reaming riveting.

Advantage of the present utility model is: 1, be equipped with a plurality of cone shape pointed cone portion on the inner side surface of the cap head of this riveted nut, so if its prominent angle of establishing is uncertain and the cap head is 90 ° of angles, in carrying out the nail additive process, and also do not have the crooked solid situation generation of can't following closely; 2, again because of it is cone-shaped structure, so can be more smooth-going when attached and be subjected to force intensity better at nail.3, riveted nut center hole post back segment is to extend can supply by the thin pipe portion of the wall thickness of reaming riveting, can with the riveted nut at nail attached or simultaneously in addition riveted on article, the riveted nut can be installed in really desire on the article of combination, do not get loose or rotation takes place and do not have the riveted nut.

Be described further below in conjunction with the structure of drawings and Examples riveted nut provided by the utility model.

Description of drawings:

Fig. 1 is the schematic perspective view of nut commonly used.

Fig. 2 is the schematic perspective view of another nut commonly used.

Fig. 3 is a three-dimensional generalized section of the present utility model.

Fig. 4 is the assembled state schematic representation of the utility model preferred embodiment.

Fig. 5 is the assembled state generalized section of the utility model preferred embodiment.

Fig. 6 is the schematic perspective view of another preferred embodiment of the utility model.

Fig. 7 is the assembled state schematic representation of another preferred embodiment of the utility model.

See also Fig. 3 to Fig. 5, the utility model riveted nut 3 is to be provided with cap head 31 in front end, and is equipped with a plurality of cone shape pointed cone portion 311 on cap head 31 inner side surfaces.Riveted nut 3 is provided with center hole post 32 simultaneously, is provided with internal thread 321 in the center hole post 32, and extends the pipe portion 322 that can approach for the wall thickness of reaming riveting.And the fixed mode of closing of nail of itself and article, it is the perforation 51 that earlier the center hole post 32 of riveted nut 3 is penetrated chair back plate 5 from a side of chair back plate 5, and wear close in, the pointed cone portion 311 that riveted nut 3 is set, also hammer in the chair back plate 5, and following closely attached or the while, also with thin walled tube portion 322 in addition the reaming riveting on the another side of chair back plate 5, make pointed cone portion 311 more certain nails solid at chair back plate 5, do not get loose or the situation of rotation and do not have, after being beneficial to perforation 61 that bolt 4 passes skeleton 6, spiral shell is solid mutually with the internal thread 321 of riveted nut 3, makes chair back plate 5 secure bond on skeleton 6.Wherein, the dash forward pointed cone portion 311 that establishes of this riveted nut 3 is the structures that are cone-shaped, so if having slightly under the situation of deflection in pointed cone portion 311, also be unlikely producing pointed cone portion 311 and can't follow closely admittedly in chair back plate 5, crooked situation of toppling over takes place.And be cone-shaped pointed cone portion 311, good steadiness is also arranged, nail is solid smooth-going and be subjected to advantages such as force intensity is preferable, and the riveted nut gets loose or the situation of rotation so do not have.

See also Fig. 6, the riveted nut 3 pointed cone portion 312 that establishes of dashing forward also can be low wide and up narrow pyramid-shaped, and effect that its structure can be reached and cone shape pointed cone portion 311 are identical.

See also Fig. 7 again, the utility model riveted nut 3 also can be solid on the metal pipe element 7, wherein metal pipe element 7 is to follow closely on the solid face in desire, offer a large perforation 71, and two little perforation 72, the large perforation 71 that the center hole post 32 of riveted nut 3 can be aligned metal tube 7 passes, and pointed cone portion 311 also must align the little perforation 72 on the metal tube 7 and hammer into, then, just center hole post 32 set pipe portions 322 can be given the reaming riveting, riveted nut 3 is fixedly arranged on the metal tube, and can reaches above-mentioned various effects.

Claims

1, a kind of improved riveted nut, it is the riveted nut of a tool cap head, this riveted nut has a center hole post, is provided with in the center hole post to supply the solid internal thread of bolt spiral shell, it is characterized in that: be equipped with a plurality of cone shape pointed cone portion on the inner side surface of the cap head of this riveted nut.

2, improved riveted nut as claimed in claim 1, it is characterized in that: this pointed cone portion is pyramid-shaped.

3, improved riveted nut as claimed in claim 1 is characterized in that: this center hole post back segment is to extend can supply by the thin pipe portion of the wall thickness of reaming riveting.