CN201389817Y

CN201389817Y - A hex wrench

Info

Publication number: CN201389817Y
Application number: CN200920079562U
Authority: CN
Inventors: 张平; 袁立; 陈爽; 谭茂森; 涂东; 唐川; 董飞
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-01-27
Anticipated expiration: 2019-03-11

Abstract

An inner hexagonal wrench, which is composed of a rod-shaped wrench arm, which is bent at a right angle. Its characteristics are: the lengths of the wrench arms on both sides of the right angle are equal, and the lengths of the regular hexagonal cutting edges at both ends of the wrench arm are different; the cross section of the wrench arm is circular or a regular hexagon. The utility model has the advantages that one wrench can be used for two kinds of hexagon socket screws with different sizes, thereby reducing the number of wrenches; and because the two arms have equal lengths, the space of the toolbox is further saved; the structure is simple and easy to manufacture. The utility model is particularly suitable for hexagonal socket head screws with smaller size and less required torque.

Description

A hex wrench

技术领域 technical field

本实用新型涉及机械工程中常用的内六角扳手。The utility model relates to an inner hexagon wrench commonly used in mechanical engineering.

背景技术 Background technique

内六角扳手是机械工程常用的工具之一。普通的内六角扳手有长臂端和短臂端，两端呈正六边形，这两个正六边形的刃口尺寸是相等的。在需要较大的力矩时(如最终扭紧内六角螺钉或刚开始拧松内六角螺钉时)，是内六角扳手的短臂端插入内六角螺钉孔内。反之，则是长臂端插入孔内进行工作，以提高工作效率。此种扳手的缺点是：(1)一个扳手仅适用于与之相适应的某一尺寸的内六角螺钉；(2)扳手长臂端在工具箱中占用的空间较大。Allen wrench is one of the commonly used tools in mechanical engineering. Ordinary hex wrenches have a long arm end and a short arm end, and the two ends are regular hexagons, and the cutting edge sizes of these two regular hexagons are equal. When a larger torque is required (such as when the hexagon socket head cap screw is finally tightened or when the hexagon socket cap screw is first loosened), the short arm end of the hexagon socket wrench is inserted into the hexagon socket cap screw hole. On the contrary, the end of the long arm is inserted into the hole to work, so as to improve work efficiency. The shortcoming of this kind of wrench is: (1) a wrench is only suitable for the hexagon socket head cap screw of a certain size that is suitable for it; (2) the space that the spanner long arm end takes up in tool box is bigger.

对于机械工程中大量使用的小尺寸内六角螺钉来说，在最终扭紧或开始拧松内六角螺钉时所需的力矩都不会很大，用两臂长度相同的内六角扳手即可满足要求；若扳手两端的正六边形刃口尺寸不相等，则一个扳手即可用于两种尺寸不同的内六角螺钉，这样，既可减少扳手的数量，又可节省工具箱的空间。For the small-sized hexagon socket head screws widely used in mechanical engineering, the torque required for the final tightening or initial loosening of the hexagon socket head screws will not be very large, and an Allen wrench with the same length of both arms can meet the requirements ; If the dimensions of the regular hexagonal cutting edges at both ends of the wrench are not equal, then one wrench can be used for two types of hexagon socket screws with different sizes, so that the number of wrenches can be reduced and the space in the toolbox can be saved.

发明内容 Contents of the invention

本实用新型的目的在于提出一种既能减少扳手数量，又能节省工具箱空间的内六角扳手。The purpose of the utility model is to propose a hexagonal wrench which can not only reduce the number of wrenches, but also save the space of the tool box.

为此，本实用新型采用以下技术方案：内六角扳手由杆状扳手臂构成，呈直角弯曲状，其特征是：直角两边的扳手臂长度相等，扳手臂两端的正六边形刃口边长不相等。扳手臂的截面形状可以是圆形，也可以是正六边形。For this reason, the utility model adopts the following technical solutions: the inner hexagonal wrench is composed of a rod-shaped wrench arm, which is bent at a right angle. equal. The cross-sectional shape of the wrench arm can be a circle or a regular hexagon.

本实用新型的优点是：The utility model has the advantages of:

1、一个扳手可用于两种尺寸不同的内六角螺钉，从而减少了使用扳手的数量。1. One wrench can be used for two kinds of hexagon socket screws with different sizes, thus reducing the number of wrenches used.

2、节省了工具箱的空间。2. Save the space of the toolbox.

3、结构简单，易于制造。3. The structure is simple and easy to manufacture.

附图说明 Description of drawings

图1是本实用新型的扳手臂采用圆形截面的结构示意图；Fig. 1 is the structural representation that the wrench arm of the present utility model adopts a circular section;

图2是本实用新型的扳手臂采用正六边形截面的结构示意图。Fig. 2 is a structural schematic diagram of the wrench arm of the present invention adopting a regular hexagonal cross-section.

具体实施方式 Detailed ways

内六角扳手由一条实心碳素工具钢杆件构成，呈直角状，直角两边的扳手臂A、B的长度相等，杆件截面为圆形(如图1所示)或正六边形(如图2所示)；扳手臂两端的正六边形C与D、C’与D’的刃口边长不相等。The hex wrench is composed of a solid carbon tool steel rod, which is in the shape of a right angle. The lengths of the wrench arms A and B on both sides of the right angle are equal, and the cross section of the rod is circular (as shown in Figure 1) or a regular hexagon (as shown in Figure 1 2); the edge lengths of the regular hexagons C and D, C' and D' at the two ends of the wrench arm are not equal.

Claims

1, a kind of inner hexagon spanner, constitute by shaft-like brace arm, rectangular bending is characterized in that: the equal in length of the brace arm on both sides, right angle (A), (B), the regular hexagon at brace arm two ends (C) with (D), (C ') unequal with the cutting edge length of side of (D ').

2, a kind of inner hexagon spanner according to claim 1 is characterized in that: the cross section of shaft-like brace arm is circular.

3, a kind of inner hexagon spanner according to claim 1, it is characterized in that: the cross section of shaft-like brace arm is a regular hexagon.