Improved high-toughness pressing rivet bolt

Abstract

An improved high-toughness pressing rivet bolt comprises a bolt head and a bolt rod, and an anti-rotation protruding block is arranged on the face, facing the bolt rod, of the bolt head. And the outer end part of the bolt rod is provided with an arc guide end. The pressing rivet bolt has the following advantages that (1) the anti-rotation protruding block is arranged, the pressing rivet bolt can be smoothly pressed into a material during pressing rivet, and the anti-rotation effect is achieved; (2) a material filling groove is formed, so that the material can flow into the groove during rivet pressing, and the binding force is improved; and (3) an arc guide end is arranged, so that a guide effect can be achieved when the nut is assembled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bolt fastener technical field, concretely relates to an improved high tenacity pressure riveting bolt. BACKGROUND

[0002] Bolt is a kind of fastener that is very common in modern industrial production, plays the fastening connection between two workpieces, and is various in type and function.Pressure riveting bolt, also known as pressure riveting screw or pressure riveting screw, is a kind of fastener commonly used in electronic mechanical equipment, metal sheet metal industry and hardware stamping or copper-aluminum plastic material, which is fixed together by pressure riveting technology.

[0003] In the prior art, the structure and function of pressure riveting bolt are different, and some pressure riveting bolts with special structure are more convenient to use and assemble, and have higher firmness after assembly, and the application further designs and improves the conventional pressure riveting bolt in this direction. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model provides an improved high tenacity pressure riveting bolt, which is provided with anti-rotation protrusions, can play a good anti-rotation role, is also provided with material filling grooves, can make materials flow into the grooves during pressure riveting, improve the bonding force, and has good guidance when assembling the nut.

[0005] The utility model is solved by the following technical scheme.

[0006] An improved high tenacity pressure riveting bolt, comprising a bolt head and a bolt rod, wherein an anti-rotation protrusion is arranged on the surface of the bolt head facing the bolt rod, and the outer end of the bolt rod has a circular arc guide end.

[0007] The pressure riveting bolt in the application has good guidance and is convenient to assemble when the circular arc guide end is arranged, the anti-rotation protrusion can play a good anti-rotation function, and has good bonding force and high strength after assembly.

[0008] In a preferred embodiment, the anti-rotation protrusions are evenly distributed in the circumference, and have good anti-rotation effect.

[0009] In a preferred embodiment, the bolt rod is provided with material filling grooves, which can make materials flow into the grooves during pressure riveting, and improve the bonding force.

[0010] In a preferred embodiment, a circumferential ring groove is arranged between the bolt head and the bolt rod, the material filling grooves are located in the region between the circumferential ring groove and the bolt head, and the material filling grooves and the circumferential ring groove are separated by a partition ring, the overall structure is compact, and the functionality is strong.

[0011] In a preferred embodiment, the ratio of the depth a of the material filling groove to the depth b of the circumferential ring groove is 1.98-2.02; the ratio of the depth a of the material filling groove to the width c thereof is 1.1-1.2, so that the structural strength is high and the material storage function is good.

[0012] In a preferred embodiment, the ratio of the width c of the material filling groove to the width d of the partition ring is 2-2.2, so that the structural strength is high.

[0013] In a preferred embodiment, the inner wall of the circumferential ring groove facing the bolt rod is a slope inner wall, so that the material can enter conveniently.

[0014] Compared with the prior art, the improved high-toughness press riveting bolt has the following beneficial effects: the anti-rotation protrusion is arranged, so that good anti-rotation effect is achieved; the material filling groove is further arranged, so that the material can flow into the groove during press riveting, and the bonding force is improved; and the guiding property is good when the nut is assembled. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of a press riveting bolt in the utility model Figure 1 .

[0016] Figure 2 is a perspective view of a press riveting bolt in the utility model Figure 2 .

[0017] Figure 3 is a front view of a press riveting bolt in the utility model.

[0018] Figure 4 is a sectional view of a press riveting bolt in the utility model.

[0019] Figure 5 is Figure 4 an enlarged view of region A in the utility model.

[0020] Figure 6 is Figure 5 an enlarged view of a local region in the utility model. DETAILED DESCRIPTION

[0021] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0022] In the following embodiments, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout, and the embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model and cannot be understood as a limitation on the utility model.

[0023] Referring to Figures 1 to 6The application relates to an improved rivet bolt, which comprises a bolt head 2 and a bolt rod 1, a rotation-preventing bump 21 is arranged on the surface of the bolt rod 1 facing the bolt head 2, the outer end of the bolt rod 1 is provided with a circular arc guide end 13, and a material filling groove 23 is arranged on the bolt rod 1, so that material can flow into the groove during riveting, and the bonding force is improved.

[0024] In addition, as can be seen from the drawings, the rotation-preventing bump 21 is uniformly distributed in the circumference, and the rotation-preventing effect is good.

[0025] In the application, a circumferential ring groove 24 is arranged between the bolt head 2 and the bolt rod 1, the material filling groove 23 is located in the region between the circumferential ring groove 24 and the bolt head 2, and the material filling groove 23 is separated from the circumferential ring groove 24 by a partition ring 234, so that the overall structure is compact and the functionality is strong.

[0026] In the specific structure, as can be seen from the drawings, Figure 6 The ratio of the depth a of the material filling groove 23 to the depth b of the circumferential ring groove 24 is 1.98-2.02, the ratio of the depth a of the material filling groove 23 to the width c thereof is 1.1-1.2, the structural strength is high, and the material storage function is good, and the ratio of the width c of the material filling groove 23 to the width d of the partition ring 234 is 2-2.2, and the structural strength is high.

[0027] In addition, the inner wall of the circumferential ring groove 24 facing the bolt rod 1 is a slope inner wall 242, which facilitates material entering.

[0028] As can be seen from the above description, the high-strength rivet bolt in the application has the circular arc guide end 13, so that the guiding property is good during assembly, the assembly is convenient, the rotation-preventing bump can play a good rotation-preventing function, the bonding force is good after assembly, and the strength is high.

[0029] As described above, the rivet bolt in the application has the following advantages: (1) the rotation-preventing bump is arranged, and the rotation-preventing bump can be smoothly pressed into material during riveting, thereby playing a rotation-preventing role; (2) the material filling groove is arranged, so that material can flow into the groove during riveting, thereby improving the bonding force; and (3) the circular arc guide end can play a guiding role when the nut is assembled.

[0030] The protection scope of the utility model includes but is not limited to the above-mentioned embodiments, the protection scope of the utility model is subject to the claims, and any replacement, deformation and improvement of the technology which can be easily thought of by the person skilled in the art falls into the protection scope of the utility model.

Claims

1. An improved high-strength and high-toughness press-fit bolt, comprising a bolt head (2) and a bolt shank (1), characterized in that, The bolt head (2) has an anti-rotation protrusion (21) on the surface facing the bolt rod (1); the outer end of the bolt rod (1) has an arc guide end (13).

2. An improved high-strength and high-toughness press-fit bolt according to claim 1, characterized in that, The anti-rotation bump (21) consists of several blocks evenly distributed around the circumference.

3. The improved high-strength and high-toughness press-fit bolt according to claim 1, characterized in that, The bolt rod (1) is provided with a material filling groove (23).

4. The improved high-strength and high-toughness press-fit bolt according to claim 3, characterized in that, A circumferential groove (24) is provided between the bolt head (2) and the bolt shank (1). The material filling groove (23) is located in the area between the circumferential groove (24) and the bolt head (2), and the material filling groove (23) and the circumferential groove (24) are separated by a spacer ring (234).

5. An improved high-strength and high-toughness press-fit bolt according to claim 4, characterized in that, The ratio of the depth a of the material filling groove (23) to the depth b of the circumferential annular groove (24) is 1.98 to 2.02; the ratio of the depth a of the material filling groove (23) to its width c is 1.1 to 1.

2.

6. An improved high-strength and high-toughness press-fit bolt according to claim 5, characterized in that, The ratio of the width c of the material filling groove (23) to the width d of the spacer ring (234) is 2 to 2.

2.

7. An improved high-strength and high-toughness press-fit bolt according to any one of claims 4 to 6, characterized in that, The inner wall of the circumferential groove (24) facing the bolt rod (1) is a sloping inner wall (242).

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