CN201848794U

CN201848794U - Internally quadrangular special spanner

Info

Publication number: CN201848794U
Application number: CN2010206077447U
Authority: CN
Inventors: 吴贺龙; 多结措毛
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2010-11-15
Filing date: 2010-11-15
Publication date: 2011-06-01
Anticipated expiration: 2020-11-15

Abstract

The utility model relates to a special wrench for inner four corners, which comprises a main body (1). The cross section of the main body (1) is rectangular. The main body (1) is L-shaped, and its front end is bent at 90 degrees. The utility model makes full use of the square shape of the wrench, so that the effect of dismantling the bolts is greatly increased. Although the special bolts can be disassembled with ordinary and special wrenches and sleeves, the special wrench with inner squares can be used for disassembly, which can produce twice the result with half the effort. Positive compensation can be used as a method.

Description

Four jiaos of special spanners in a kind of

Technical field

The utility model belongs to the fastener tool field, particularly relates to interior four jiaos of spanners that shape four horn shape bolts use or other similar interior four corner bolts use in a kind of profile hexagonal.

Background technology

In traditional mechanized equipment industry, the bolt in the securing member is common part commonly used, particularly outer-hexagonal bolt, and use amount proportion is bigger; But in today that mechanized equipment makes rapid progress, often the General fasteners bolt can not satisfy the needs of present many occasions, and especially in some more special equipment occasions, the effect of General fasteners bolt is very limited especially; Particularly common bolt, by common spanner, be worn easily and cause fillet through its outer-hexagonal after repeatedly the dismounting, cause bolt normally to use, cause some equipment configurations all can't carry out dismounting and unload, bring great inconvenience to real work; Sometimes just can deal with problems later at destruction bolt or structure even, the damage of bolt brings great inconvenience for dismounting, maintenance and debugging work through regular meeting; The applying unit of bolt often will be changed bolt and will destroy equipment, can cause product cost to increase undoubtedly and not guilty waste.

The utility model content

Technical problem to be solved in the utility model provides a kind of interior four jiaos of special spanners, to remedy in the prior art, use after common wrench and the special sleeve spanner, dismantle replenishing of interior four corner bolts of a kind of special outer-hexagonal, and other similar bolt dismantles, solve use several instruments can dismantle in the mechanized equipment special in the Complementarity Problem of four corner bolts.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of interior four jiaos of special spanners are provided, comprise main body, described body cross-section is a rectangle.

Described main body is L-shaped, its front end 90 degree bendings.

Beneficial effect

Four jiaos of special spanners in the utility model is special, making full use of spanner is four horn shapes, thereby the effect of demounting bolt is increased greatly, though special bolts can use common and special-purpose spanner, sleeve to dismantle, but be to use a kind of special interior four jiaos of special spanners to dismantle, also may produce the effect of getting twice the result with half the effort in certain occasion, can be used as a kind of method and actively remedy.

Description of drawings

Fig. 1 is interior four jiaos of special spanner figure of the present utility model.

The specific embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Embodiment 1

As shown in Figure 1, a kind of interior four jiaos of special spanners comprise main body 1, and described main body 1 cross section is a rectangle.

The 90 degree bendings of described main body 1 front end are L-shaped.

Four jiaos of spanners in a kind of, special in four jiaos of spanners in many cases, with the use that can develop simultaneously of other extracting tool, more can use separately, and when other instrument can not play a role, interior four jiaos of spanners more can be brought into play its positive effect, can carry out the dismounting of special bolts.

The use of four jiaos of spanners in a kind of has been accustomed to the inner hexagon spanner that uses as us, and the user is as long as aim at spanner on the bolt head recessed four jiaos, and the user just can carry out the dismounting and the installation of special bolts easily then.

So, in special bolts or other this type of bolt have had, after four jiaos of spanners, just carry out the dismounting of bolt more easily, thereby improved operating efficiency, saved valuable time, some unnecessary destructions also can be avoided fully.

Claims

1. four jiaos of special spanners in a kind comprise main body (1), and it is characterized in that: described main body (1) cross section is a rectangle.

2. a kind of interior four jiaos of special spanners according to claim 1, it is characterized in that: described main body (1) is L-shaped, its front end 90 degree bendings.