CN202646283U

CN202646283U - Drum-shaped rivet

Info

Publication number: CN202646283U
Application number: CN 201220275742
Authority: CN
Inventors: 吴洪学
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-12
Filing date: 2012-06-12
Publication date: 2013-01-02
Anticipated expiration: 2022-06-12

Abstract

The utility model relates to a drum-shaped rivet, which comprises a rivet rod and a rivet tube sleeved outside the rivet rod, wherein the rivet rod is provided with a cup opening, a lock cylinder groove, a break point and rolled grains successively from top to bottom, the upper end of the rivet tube is connected with a clamping ring, and the clamping ring is sleeved outside the rivet rod; the inner wall thickness of the middle part of the rivet tube is smaller than the inner wall thickness of the two end parts of the rivet tube, and the inner surface smoothly transits from the middle part to the two end parts; and the inner diameter size of the clamping ring is smaller than the outer diameter size of the cup opening. The drum-shape rivet provided by the utility model has the beneficial effect that the product is high in tensile and shearing strength and can be used for riveting workpieces with different thicknesses; the rivet tube inner wall is pressed to be thin in the middle and thick at both ends, which facilitates rivet bulking, and manual operation is time saving and labor saving; and the break point is flush with the lower end port of the rivet, so the workpiece is beautiful and tidy.

Description

A kind of drum type rivet

Technical field

The utility model belongs to fastener areas, relates in particular to a kind of drum type rivet.

Background technique

The breakpoint of drum type rivet all can not flush with the riveting infratubal port in the rivet on the market now, and the rivet that flushes with the riveting infratubal port can not play drum again.The shortcoming of these two kinds of rivets is tension and the anti-strength deficiency of cutting; The riveting inner tube wall of common rivet all is straight cylinder type, be not easy to rivet and play drum, and manual operations is wasted time and energy.

The model utility content

The purpose of this utility model provides a kind of drum type rivet, and the hardness of pressure ring is greater than the hardness of riveting pipe, and the hardness of riveting pipe is again greater than the hardness of rim of a cup, and the riveting inner tube wall to be pressed into the intermediate thin two ends thick, solved the above-mentioned deficiency of existing product.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of drum type rivet comprises nail bar and the riveting pipe that is socketed in described nail bar outside, and the nail bar is provided with rim of a cup, lock core groove, breakpoint and knurling from top to bottom successively, and riveting pipe upper end is connected with pressure ring, and it is outside that pressure ring is socketed on the nail bar; The inner wall thickness of described riveting pipe intermediate portion is less than the inner wall thickness of riveting pipe two end portions, and is rounding off from the centre part to the two end portions internal surface; The internal diameter size of described pressure ring is less than the outside dimension of described rim of a cup.

The beneficial effects of the utility model are: this product tension and shear strength are high, can be used on the riveted joint workpiece of different-thickness; It is thick that the riveting inner tube wall is pressed into the intermediate thin two ends, is convenient to rivet and plays drum, and manual operations is time saving and energy saving; Breakpoint flushes with the riveting infratubal port, and workpiece is attractive in appearance neat.

Description of drawings

The below is described in further detail the utility model with reference to the accompanying drawings.

Fig. 1 is the described a kind of drum type rivet structural representation of the utility model embodiment;

Fig. 2 is the described a kind of drum type rivet riveting status figure of the utility model embodiment.

Among the figure:

1, nail bar; 2, riveting pipe; 3, rim of a cup; 4, lock core groove; 5, breakpoint; 6, knurling; 7, pressure ring; 8, riveting part.

Embodiment

Shown in Fig. 1-2, the described a kind of drum type rivet of the utility model embodiment, comprise nail bar 1 and the riveting pipe 2 that is socketed in described nail bar outside, nail bar 1 is provided with rim of a cup 3, lock core groove 4, breakpoint 5 and knurling 6 from top to bottom successively, the inner wall thickness of riveting pipe 2 intermediate portions is less than the inner wall thickness of riveting pipe two end portions, and is rounding off from the centre part to the two end portions internal surface; Riveting pipe 2 upper ends are connected with pressure ring 7, and pressure ring 7 is socketed on nail bar 1 outside; The internal diameter size of pressure ring 7 is less than the outside dimension of rim of a cup 3.

During implementation, the rivet that assembles is inserted in the riveting part 8, use the staking instrument, will follow closely bar 1 and pull out, pressure ring 7 has been depressed drum with riveting pipe 2 under the pulling force effect, to follow closely simultaneously bar 1 and continue to pull out, so that rim of a cup 3 lengthening deformation on nail bar 1 top embed riveting pipe 2 inwalls, to follow closely breakpoint 5 on the bar 1 when pulling force is pulled to when flushing with riveting pipe 2 lower end mouth, breakpoint 5 places namely disconnect, and riveting pipe 2 inwalls are out of shape simultaneously extruding and embed lock core groove 4, and required riveting part 8 is namely riveted and finished.

The utility model is not limited to above-mentioned preferred forms; can not limit to the utility model with this; other various forms of products that anyone draws under enlightenment of the present utility model; no matter do any variation in its shape or structure; every have identical with a application or akin technological scheme, all drops within the protection domain of the present utility model.

Claims

1. drum type rivet, comprise nail bar (1) and be socketed in the outside riveting pipe (2) of described nail bar (1), it is characterized in that: described nail bar (1) is provided with rim of a cup (3), lock core groove (4), breakpoint (5) and knurling (6) from top to bottom successively, described riveting pipe (2) upper end is connected with pressure ring (7), and pressure ring (7) is socketed on nail bar (1) outside.

2. a kind of drum type rivet according to claim 1, it is characterized in that: the inner wall thickness of described riveting pipe (2) intermediate portion is less than the inner wall thickness of riveting pipe (2) two end portions, and the internal surface from riveting pipe (2) intermediate portion to riveting pipe (2) two end portions is rounding off.

3. a kind of drum type rivet according to claim 2, it is characterized in that: the internal diameter size of described pressure ring (7) is less than the outside dimension of described rim of a cup (3).