CN203532462U

CN203532462U - Ring slot rivet rod structure

Info

Publication number: CN203532462U
Application number: CN201320454171.2U
Authority: CN
Inventors: 戴志平; 缪建国; 李惠元
Original assignee: WUXI ANSHIDA HARDWARE CO Ltd
Current assignee: WUXI ANSHIDA HARDWARE CO Ltd
Priority date: 2013-07-29
Filing date: 2013-07-29
Publication date: 2014-04-09
Anticipated expiration: 2023-07-29

Abstract

The utility model relates to a ring slot rivet rod structure, comprising a rivet rod upper part, a rivet rod lower part and a rivet rod middle part. The ring slot rivet rod structure is characterized in that the rivet rod upper part, the rivet rod middle part and the rivet rod lower part are coaxially integrally arranged; the rivet rod upper part is a flat round head; the rivet rod middle and lower parts are cylinders; the rivet rod lower part is provided with a plurality of ring slots uniformly distributed along the axial direction of the rivet rod lower part; and a ring tooth is arranged between adjacent ring slots. The ring slot rivet rod structure utilizes Hooke's law, and according to the thickness of a rivet, the rivet rod lower part can be broken at any ring slot position to be flush with a matched lantern ring, so the riveting operation is not limited by the thickness of the rivet, high-quality high-strength riveting can be realized, and the rivet is not exposed after riveting. The face is attractive, the fixing is good, the operation is simple and convenient, the noise is low, the connection is reliable, and the ring slot rivet rod structure is particularly suitable for the riveting in special fields such as aerospace, military project and traffic transportation.

Description

Ring-grooved rivet nail bar structure

Technical field

The utility model relates to a kind of nail bar that is used for riveting the special purpose rivet of the field devices such as aerospace field, military industry field, field of track traffic, specifically a kind of ring-grooved rivet nail bar.

Background technique

Ring-grooved rivet is a kind of novel rivet fastener, and a set of ring-grooved rivet is comprised of a nail bar and a collar, and ring-grooved rivet tool shockproof function and high strength clamping force, can replace conventional bolt and nut.Because ring-grooved rivet can reach very high riveted intensity, be widely used in the manufacture of rail facility and the manufactures of shipping container such as aircraft, railway carriage, ring-grooved rivet is in the market all, on its nail bar, a breaking groove is set, because this breaking groove position is fixed, so grip is had to higher requirement, as thicker in thickness, nail bar can contract and in the inside, affect riveted intensity, as thinner in riveted joint, can reveal again nail and cause potential safety hazard.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of ring-grooved rivet nail bar is provided, it rationally utilizes Hooke's law principle, makes riveting operation not limited by thick riveted joint thickness, can reach high quality, high-intensity riveted joint, and do not reveal nail after riveted joint, surface aesthetic, is fixed well, easy and simple to handle, noise is low, connects reliable.

The technological scheme providing according to the utility model: ring-grooved rivet nail bar, comprise nail bar top, nail bar middle part and nail bar bottom, it is characterized in that: described nail bar top, the coaxial setting in nail bar middle part and nail bar bottom one are connected, nail bar top is oval head, nail bar middle part and nail bar bottom are cylindrical body, wherein following closely bar bottom and be provided with several along the equally distributed annular groove of nail bar bottom axial direction, is ring tooth between adjacent annular groove.

As further improvement of the utility model, the sectional shape of described annular groove is trapezoidal, and the width of annular groove bottom is identical with the width of ring tooth top portion, and the gradient of annular groove ramp is greater than the gradient of annular groove lower inclined plane.

As further improvement of the utility model, the width of described annular groove bottom and the width of ring tooth top portion are 0.4mm, and the gradient of described annular groove ramp is 40 °, and the gradient of annular groove lower inclined plane is 20 °.

compared with prior art, advantage is the utility model:the utility model rationally utilizes Hooke's law principle, and according to grip, nail bar bottom can be in any one annular groove position fracture, concordant with the supporting collar, make riveting operation not limited by thick riveted joint thickness, can reach high quality, high-intensity riveted joint, and do not reveal nail after riveted joint, surface aesthetic, be fixed well, easy and simple to handle, noise is low, connect reliably, establish especially for the riveted joint on the special dimensions such as aerospace field, military industry field, track traffic.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 follows closely the enlarged diagram of bar bottom in Fig. 1.

Fig. 3 is that the utility model is loaded onto the structural representation after the supporting collar.

Fig. 4 is for being used the utility model to rivet the phase diagram before thin workpiece.

Fig. 5 is for being used the utility model to rivet the phase diagram after thin workpiece.

Fig. 6 is for being used the utility model to rivet the phase diagram before thick workpiece.

Fig. 7 is for being used the utility model to rivet the phase diagram after thick workpiece.

Embodiment

Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.

As shown in the figure: as shown in the figure: the ring-grooved rivet nail bar in embodiment comprises nail bar top 1, nail bar middle part 2 and nail bar bottom 3, described nail bar top 1, the coaxial setting in nail bar middle part 2 and nail bar bottom 3 one are connected, nail bar top 1 is oval head, nail bar middle part 2 and nail bar bottom 3 are cylindrical body, wherein following closely bar bottom 3 and be provided with several along the equally distributed annular groove 4 of nail bar bottom 3 axial direction, is ring tooth 5 between adjacent annular groove 4.

As shown in Figure 2, the sectional shape of described annular groove 4 is trapezoidal, the width d of annular groove 4 bottoms ₁width d with ring tooth 5 tops ₂identical, the gradient α of annular groove 4 ramp 4a is greater than the gradient β of annular groove 4 lower inclined plane 4b.In the utility model embodiment, the width d of described annular groove 4 bottoms ₁width d with ring tooth 5 tops ₂be 0.4mm, the gradient α of described annular groove 4 ramp 4a is 40 °, and the gradient β of annular groove 4 lower inclined plane 4b is 20 °.

As shown in Figure 3, nail bar of the present utility model needs to coordinate the collar 6 in use, the described collar 6 can adopt conventional products of the prior art, the collar 6 in embodiment comprises that collar body 6a and one are connected to the collar head 6b of collar body 6a one end, collar body 6a is hollow cylinder, collar head 6b is discoid, in the axial centre of collar body 6a and collar head 6b, is provided with the nail bar hole of axially running through.

As shown in Figure 4, Figure 5, while using the utility model to rivet workpiece, punching on the first tabular body 7 to be riveted and the second tabular body 8, the punching size on the first tabular body 7, the second tabular body 8 should match with the size of nail bar.Nail bar is inserted in the hole of accomplishing fluently on the first tabular body 7 and the second tabular body 8, from nail bar lower end, put the collar 6, then will follow closely bar and connect hand riveter, under the unidirectional pulling force effect of hand riveter, the oppressed distortion of the collar 6, the inwall in the collar 6 center nail bar holes is extruded and is out of shape and is fitted in the annular groove 4 of nail bar bottom 3, makes the collar 6 and nail bar form 100% combination, produces permanent fastening force.According to Hooke's law principle, the stressed tensile buckling of an annular groove 4 of the close collar 6 and rifle head connecting part is until end is riveted in fracture.Whole process only needs 5 ~ 6 seconds, simple to operate, noise is low.

Shown in Fig. 6, Fig. 7 is to rivet on thicker workpiece, and operating procedure is the same.Similarly, near the collar 6 with the stressed tensile buckling of one annular groove 4 of rifle head connecting part until fracture is two-sided smooth, attractive in appearance after riveted joint, and the combination force of rivet and tensile strength very high.

Claims

1. ring-grooved rivet is followed closely bar, comprise nail bar top (1), nail bar middle part (2) and nail bar bottom (3), described nail bar top (1), nail bar middle part (2) is connected with the coaxial setting in nail bar bottom (3) one, nail bar top (1) is oval head, nail bar middle part (2) and nail bar bottom (3) are cylindrical body, wherein follow closely bar bottom (3) and be provided with several along the nail equally distributed annular groove of bar bottom (3) axial direction (4), it between adjacent annular groove (4), is ring tooth (5), it is characterized in that: the sectional shape of described annular groove (4) is trapezoidal, width (the d of annular groove (4) bottom ₁) with ring tooth (5) top width (d ₂) identical, the gradient (α) of annular groove (4) ramp (4a) is greater than the gradient (β) of annular groove (4) lower inclined plane (4b).

2. ring-grooved rivet as claimed in claim 1 is followed closely bar, it is characterized in that: the width at the width of described annular groove (4) bottom and ring tooth (5) top is 0.4mm, the gradient of described annular groove (4) ramp (4a) is 40 °, and the gradient of annular groove (4) lower inclined plane (4b) is 20 °.