Wear-resistant hexagonal flange bolt

Abstract

The utility model relates to a wear-resistant hexagonal flange bolt which comprises a bolt head, a screw rod and a flange plate, the screw rod is located below the bolt head, and the flange plate is arranged below the bolt head. The screw rod comprises a column body, an outer convex layer is arranged on the column body, the outer convex layer is arranged around the surface of the main body, and threads are arranged on the outer convex layer; a corner position formed by the side wall and the bottom surface of the flange plate is provided with an inner concave surface, the inner concave surface is located on the bottom surface and close to the side wall, a connecting curved surface is arranged between the inner concave surface and the side wall, and a corner position between the side wall and the top surface of the flange plate is provided with an upper tangent plane. The flange plate bolt is novel in design, the flange plate of a traditional flange plate bolt is improved, the bottom face and the side wall are improved, an anti-collision structure can be prevented from being formed through the design, and the flange plate is prevented from being damaged and influenced by falling in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt processing, in particular to a wear-resistant hexagonal flange bolt. Background Art

[0002] A bolt is a cylindrical threaded fastener that is matched with a nut or a threaded connection with a machine body to fasten two or more parts together. In actual environments, the existing structure design of traditional bolts and nuts is usually adopted. High-strength and wear-resistant bolts are made by melting materials in different proportions to replace ordinary bolts. However, the existing technology has the following disadvantages: Figure 1 As shown, the flange of the flange bolt includes a side wall (20) and a bottom surface (200) to form a vertical angle, which is easy to cause collision during transportation, resulting in collision of the flange angle and affecting its wear resistance. In view of this, this invention is specially applied for. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the utility model provides a wear-resistant hexagonal flange bolt that can improve the above-mentioned deficiencies.

[0004] The utility model relates to a wear-resistant hexagonal flange bolt, comprising a bolt head, a screw and a flange, wherein the screw is located below the bolt head, and the flange is arranged below the bolt head; the screw comprises a column, an outer convex layer is arranged on the column, the outer convex layer is arranged around the main body surface, and a thread is arranged on the outer convex layer; the side wall and the bottom surface of the flange form an inner concave surface at a corner position, the inner concave surface is located on the bottom surface and close to the side wall, a connecting curved surface is arranged between the inner concave surface and the side wall, and an upper cut surface is arranged at the corner position between the side wall and the top surface of the flange.

[0005] Furthermore, four guide grooves are symmetrically arranged on the outer convex layer, and the guide grooves extend along the length direction of the outer convex layer. A special-shaped socket is arranged in the middle of the top surface of the bolt head, and a logo recessed mark is arranged on the top surface of the cap outside the special-shaped socket, and the special-shaped socket includes an upper socket and a lower socket; the special-shaped socket extends into the interior of the screw, and the upper socket contains four vertical surfaces, which are perpendicular to each other, and an inward convex arc surface is arranged between adjacent vertical surfaces; an anti-counterfeiting groove is arranged on the top surface of the bolt head, and an anti-counterfeiting patch is arranged in the anti-counterfeiting groove; vertical holes perpendicular to each other are arranged through the screw, and the vertical hole passes through the lower socket, and a concave surface is arranged at the mouth of the vertical hole and intersects with the guide groove.

[0006] Furthermore, the pitch between adjacent teeth of the threads on the screw is 6 mm.

[0007] Furthermore, the oblique angle between the thread and the horizontal line is 10-16°.

[0008] Furthermore, a rounded concave surface is provided at the corner position of the top surface of the bolt head.

[0009] Furthermore, the surfaces of the bolt head, flange and screw are all provided with a zinc-nickel alloy plating layer with a thickness of 10 μm.

[0010] Furthermore, the surface of the anti-counterfeiting patch is covered with a transparent waterproof film.

[0011] Furthermore, an anti-slip gasket is provided on the bottom surface of the flange.

[0012] The utility model has a novel design and improves the flange of the traditional flange bolt. With respect to the bottom surface and the side wall, the side wall and the bottom surface of the flange form a concave surface at the corner position, and the concave surface is located on the bottom surface and close to the side wall. A connecting curved surface is provided between the concave surface and the side wall. This design can avoid the formation of an anti-collision structure and avoid the damage to the flange caused by falling during transportation. At the same time, the design of the screw is improved, and a column and an outer convex layer are designed. A thread is provided on the outer convex layer, which is equivalent to the traditional main bolt body and the threaded outer wall being split apart, which greatly avoids the problem of breakage of the threaded bolt at the threaded notch due to excessive force applied during the screw connection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the flange bottom surface and side wall structure of the flange bolt in the prior art.

[0014] Figure 2 This is a schematic diagram of the structure of the utility model.

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0016] Figure 4 Top view of the bolt head.

[0017] Figure 5 Schematic diagram of the screw bottom structure.

[0018] Illustration: 1 bolt head, 2 flange, 20 side wall, 200 bottom surface, 201 top surface, 21 upper cut surface, 22 connecting curved surface, 23 inner concave surface, 3 vertical hole, 4 cylinder, 41 outer convex layer, 43 threaded surface, 5 guide groove, 6 rounded concave surface, 7 anti-counterfeiting groove, 8 anti-counterfeiting sticker, 81 transparent waterproof film, 10 upper socket, 101 vertical surface, 102 inner convex arc surface, 11 lower socket, 12 strip seam, 13 Logo recessed mark, 14 anti-slip washer. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] like Figure 1-3 As shown, the utility model relates to a wear-resistant hexagonal flange bolt, comprising a bolt head 1, a screw 4 and a flange 2, wherein the screw is located below the bolt head, and a flange is arranged below the bolt head; the screw comprises a cylinder 4, an outer convex layer 41 is arranged on the cylinder, the outer convex layer is arranged around the main body surface, and a thread 42 is arranged on the outer convex layer; the side wall 20 and the bottom surface 200 of the flange form a corner position with an inner concave surface 23, the inner concave surface is located on the bottom surface and close to the side wall, a connecting curved surface 22 is arranged between the inner concave surface and the side wall, and an upper cut surface 21 is arranged at the corner position between the side wall and the top surface 201 of the flange. The advantage of this design is that it avoids the damage to the flange caused by falling during transportation.

[0021] As a technical improvement, four guide grooves 5 are symmetrically arranged on the outer convex layer, and the guide grooves extend along the length direction of the outer convex layer, and the guide grooves cut through the threads on the surface of the stud; a special-shaped socket is arranged in the middle of the top surface of the bolt head, and a logo recessed mark 13 is arranged on the top surface of the cap on the outside of the special-shaped socket, and the special-shaped socket includes an upper socket 10 and a lower socket 11; the special-shaped socket extends into the interior of the screw, and the upper socket contains four vertical surfaces 101, and the four vertical surfaces are perpendicular to each other. An inward convex arc surface 102 is arranged between adjacent vertical surfaces, and the height of the inward convex arc surface is 3.5mm to 6mm; an anti-counterfeiting groove 1 is arranged on the top surface of the bolt head, and an anti-counterfeiting patch 8 is arranged in the anti-counterfeiting groove, and the anti-counterfeiting patch records anti-counterfeiting information, such as product information concentrated on the QR code; a vertical hole 8 is arranged through the screw, and the vertical hole passes through the lower socket, and a concave surface is arranged at the mouth of the vertical hole and intersects with the guide groove.

[0022] As a technical improvement, the threads on the screw have a spacing of 6 mm between adjacent teeth.

[0023] As a technical improvement, the oblique angle between the thread and the horizontal line is 10-16°.

[0024] As a technical improvement, a rounded concave surface 9 is provided at the corner position of the top surface of the bolt head.

[0025] As a technical improvement, the surfaces of the bolt head, flange and screw are all provided with a zinc-nickel alloy coating with a thickness of 10 μm.

[0026] As a technical improvement, an anti-slip washer is provided on the bottom surface of the flange.

[0027] This solution is unique in design. It improves the screw rod by designing a column and an outer convex layer, and setting threads on the outer convex layer, which is equivalent to splitting the traditional main bolt body and the threaded outer wall. It greatly avoids the problem of breakage of the threaded bolt at the threaded notch due to excessive force applied during the screw connection process.

Claims

1. A wear-resistant hexagonal flange bolt, comprising a bolt head, a screw and a flange, characterized in that: The screw is located below the bolt head, and a flange is provided below the bolt head; the screw comprises a column, an outer convex layer is provided on the column, the outer convex layer is provided around the main body surface, and a thread is provided on the outer convex layer; The side wall and bottom surface of the flange form a concave surface at the corner position, the concave surface is located on the bottom surface and close to the side wall, a connecting curved surface is set between the concave surface and the side wall, and an upper cut surface is set at the corner position between the side wall and the top surface of the flange.

2. The wear-resistant hexagonal flange bolt according to claim 1, characterized in that: Four guide grooves are symmetrically arranged on the outer convex layer, and the guide grooves extend along the length direction of the outer convex layer. A special-shaped socket is arranged in the middle of the top surface of the bolt head, and a logo recessed mark is arranged on the top surface of the cap outside the special-shaped socket, and the special-shaped socket includes an upper socket and a lower socket; the special-shaped socket extends into the interior of the screw, and the upper socket contains four vertical surfaces, which are perpendicular to each other, and an inward convex arc surface is arranged between adjacent vertical surfaces; an anti-counterfeiting groove is arranged on the top surface of the bolt head, and an anti-counterfeiting patch is arranged in the anti-counterfeiting groove; vertical holes perpendicular to each other are arranged through the screw, and the vertical hole passes through the lower socket, and a concave surface is arranged at the mouth of the vertical hole and intersects with the guide groove.

3. The wear-resistant hexagonal flange bolt according to claim 1, characterized in that: The threads on the screw rod have a spacing of 6 mm between adjacent teeth.

4. The wear-resistant hexagonal flange bolt according to claim 2, characterized in that: The oblique angle between the thread and the horizontal line is 10-16 degrees.

5. The wear-resistant hexagonal flange bolt according to claim 1, characterized in that: A rounded concave surface is provided at a corner position of the top surface of the bolt head.

6. The wear-resistant hexagonal flange bolt according to claim 1, characterized in that: The surfaces of the bolt head, flange and screw are all provided with a zinc-nickel alloy plating layer with a thickness of 10 μm.

7. The wear-resistant hexagonal flange bolt according to claim 1, characterized in that: An anti-slip washer is provided on the bottom surface of the flange.

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