Bolt with end paired holes and matched wrench thereof

A paired, end-to-end technology, applied in the direction of bolts, wrenches, screws, etc., can solve problems such as industrial accidents, people falling, people tripping, etc., and achieve the effect of low cost and simple structure

Inactive Publication Date: 2014-05-21
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hexagonal head of the hexagon head bolt has clear and sharp edges and corners. The thick hexagonal head under the lamppost on the roadside sometimes causes people to trip and even hurt people; the thick hexagonal head next to large indoor and outdoor equipment may trip people up and cause work-related injuries. Accidents; the thick and sharp hexagonal heads on large machinery may hit the operator's head and body, bring safety hazards to production, and may also lead to terrible accidents

Method used

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  • Bolt with end paired holes and matched wrench thereof
  • Bolt with end paired holes and matched wrench thereof
  • Bolt with end paired holes and matched wrench thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 The bolt head 2 is one end of the screw rod 1 (that is, the cross-sectional diameter of the bolt's full length remains unchanged), and the bolt head 2 has paired holes 4 along the axial direction of the screw rod 1 from the end face; the paired holes 4 are on the end face Symmetrical about the center of the end face.

[0029] Utilize the wrench in the present invention, by adjusting the distance between the two cylinders II9 to adapt to the hole spacing of the paired holes 4 on the bolt head 2, insert the two cylinders II9 into the paired holes 4 of the bolt head 2, and then screw in Bolt until the end surface of the bolt head 2 is flush with the surface of the object to be fixed or even below without showing the head or loosening the bolt.

Embodiment 2

[0030] Example 2 The bolt head 2 is a spherical segment connected to one end of the screw rod 1, on which a pair of holes 4 are opened from the spherical segment surface along the axial direction of the screw rod 1; the paired holes 4 are symmetrical to The center of the spherical surface.

[0031] Utilize the wrench among the present invention, by adjusting the distance between two cylinders II9 to adapt to the hole spacing of the paired holes 4 on the bolt head 2, the two cylinders II9 are inserted into the paired holes 4 of the bolt head 2, and then they can be screwed. Tighten or loosen the bolts.

Embodiment 3

[0032] Example 3 The bolt head 2 is a cylinder I connected to one end of the screw rod 1, and a pair of holes 4 are opened on the cylinder I from the end face along the axial direction of the screw rod 1; the pair of holes 4 are symmetrical to the center of the end face on the end face of the cylinder I; The length of cylinder I is less than the length of screw 1.

[0033] Utilize the wrench among the present invention, by adjusting the distance between two cylinders II9 to adapt to the hole spacing of the paired holes 4 on the bolt head 2, the two cylinders II9 are inserted into the paired holes 4 of the bolt head 2, and then they can be screwed. Tighten or loosen the bolts.

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PUM

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Abstract

The invention relates to a bolt with end paired holes. The bolt comprises a screw rod and a bolt head, wherein the screw rod and the bolt head are connected together, one section of the screw rod or the whole screw rod is provided with threads, and the bolt head is provided with paired holes. The bolt has the advantages that the structure is simple, the convenience and the practicality are realized, the cost is low, and the safety hidden hazards of falling, working injury and the like of people by the traditional bolt head are eliminated.

Description

technical field [0001] The invention relates to a fastener and its supporting tools, in particular to bolts with paired holes at the ends and their matching spanners. Background technique [0002] Hexagon head bolts and lag bolts can be seen when walking on the side of the road, walking slowly beside the equipment, and looking at the machine tools. They are the most commonly used fasteners for connection and fixing, and are widely used in industrial and agricultural production and people's lives. Among them, especially thick hexagon head bolts are widely used to fix various equipment, lamp posts, electric towers, and various large machinery. The hexagonal head of the hexagon head bolt has clear and sharp edges and corners. The thick hexagonal head under the lamppost on the roadside sometimes causes people to trip and even hurt people; the thick hexagonal head next to large indoor and outdoor equipment may trip people up and cause work-related injuries. Accidents: The thick ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B23/00B25B13/50
Inventor 言志信江平
Owner LANZHOU UNIVERSITY
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