CN201851457U - Bolt with hexagonal appearance and pentagonal interior - Google Patents

Abstract

The utility model relates to a bolt with a hexagonal appearance and a pentagonal interior, which comprises a bolt head part (2) and a bolt neck part (3) which is connected with the bolt head part (2); the lower end of the bolt neck part (3) is provided with a bolt thread (4), the bolt head part (2) is of an external hexagonal shape, and the center on the end surface of the bolt head part is provided with a pentagonal groove (1). The bolt can be disassembled and installed by different tools according to different situations, so the bolt is difficult to damage, thereby, the application period of the bolt is prolonged, the bolt is convenient to disassemble, and the maximum application effect of the bolt can be realized.

Description

Shape five-cornuted bolt in a kind of profile hexagonal

Technical field

The utility model relates to fastener areas, particularly relates to shape five-cornuted bolt in a kind of profile hexagonal.

Background technique

In traditional mechanized equipment industry, the big and small bolt in the fastening piece is the most common, most common standard part, outer-hexagonal bolt particularly, and use amount is very big, and using scope is also wide especially.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 outer-hexagonal bolt, by common spanner, after dismounting repeatedly, its outer-hexagonal can be worn with comparalive ease, thereby make hex head bolt become the fillet bolt, the fillet bolt has just lost the effect of fastening piece at all, and not only bolt has been scrapped, and some equipment configurations can't be mounted and dismounted, bring great inconvenience to actual production work; Sometimes will destroy could solving the production practical problem after bolt or the device structure even, it is very big inconvenient and waste to bring to the user.

Summary of the invention

Technical problem to be solved in the utility model provides shape five-cornuted bolt in a kind of profile hexagonal, makes bolt can reach maximum using effect.

The technological scheme that its technical problem that solves the utility model adopts is: shape five-cornuted bolt in a kind of profile hexagonal is provided, comprises bolt head, the bolt neck that links to each other with described bolt head; It is the outer-hexagonal shape that described bolt neck subordinate end has bolt thread, described bolt head, and there is the pentagon groove at its end face center.

Described pentagon groove is positive pentagon.

Beneficial effect

Owing to adopted above-mentioned technological scheme, the utility model compared with prior art, have following advantage and good effect: the utility model makes full use of the interior shape five-cornuted of profile hexagonal that the bolt top forms, thereby the using effect of bolt is increased greatly, not only can use common spanner, sleeve to mount and dismount, can also use special instrument to mount and dismount, and after outer-hexagonal has been worn fillet, can there be other method actively to remedy, can reaches the installation and removal effect smoothly.

Description of drawings

Fig. 1 is an end view drawing of the present utility model;

Fig. 2 is an outline drawing of the present utility model.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments 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 depicted in figs. 1 and 2, shape five-cornuted bolt comprises bolt head 2, the bolt neck 3 that links to each other with described bolt head 2 in a kind of profile hexagonal; There is bolt thread 4 described bolt neck 3 lower ends, and described bolt head 2 is the outer-hexagonal shape, and there is pentagon groove 1 at its end face center.Wherein, pentagon groove 1 is positive pentagon groove.

This bolt can equally with plain bolt be applicable to many mechanized equipment occasions, and especially the bolt of the special shape that profile develops simultaneously in it not only has the effect and the function of profile hex head bolt, and simultaneously the bolt head end have one recessed in five jiaos as the location.This bolt is very convenient to use, not only can use common wrench, sleeve to reach the effect of original standard piece bolt, and under the condition of using special tool, in the fastening of bolt with when unclamping, owing to be subjected to outer-hexagonal and interior five jiaos conditioning each other also should not be skidded, especially in particular cases, if there is not special tool dismounting effect to be affected at some.In addition, after the outer-hexagonal wearing and tearing cause fillet, can use special tool, can dismantle with fastening bolt at leisure as interior five jiaos of location outer-hexagonal combined sleeves, the inner ring on this sleeve top is a hexagonal plum blossom shape, and the center is the pentagon column structure.This bolt can be dismantled with several method respectively, comprising: special socket wrench, ordinary cartridge spanner, plum blossom shaped spanner, interior five jiaos of spanners or the like, can both dismantle this bolt effectively, make bolt reach maximum using effect, make this bolt in common occasion and the maximum effect of special occasions performance.

Be not difficult to find that the utility model can be according to situation at that time under multiple occasion situation; select multiple instrument to carry out demounting bolt and be unlikely to, thereby the life cycle that has prolonged bolt has made things convenient for dismantlement work bolt failure; reach resource conservation, save time, the convenient effect of using.

Claims (2)

1. the interior shape five-cornuted bolt of profile hexagonal comprises bolt head (2), the bolt neck (3) that links to each other with described bolt head (2); There is bolt thread (4) described bolt neck (3) lower end, it is characterized in that, described bolt head (2) is the outer-hexagonal shape, and there is pentagon groove (1) at its end face center.

2. shape five-cornuted bolt in the profile hexagonal according to claim 1 is characterized in that described pentagon groove (1) is positive pentagon.

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