CN203230702U

CN203230702U - Bolt

Info

Publication number: CN203230702U
Application number: CN 201320283356
Authority: CN
Inventors: 朱喜华
Original assignee: 宁波中斌紧固件制造有限公司
Priority date: 2013-05-21
Filing date: 2013-05-21
Publication date: 2013-10-09

Abstract

The utility model provides a bolt comprising a threaded body and a hexagon head arranged at an end part of the threaded body. The threaded body is provided with external threads,an end part of the hexagon head is provided with a cross-shaped operation part, the end face of the hexagon head is provided with an inner hexagon hole, and the inner hexagon hole and the thread body are coaxial. The bolt is free from the limitation of tools, can be assembled and dismounted via a plurality of tools, and is very convenient.

Description

Bolt

Technical field

The utility model relates to a kind of fastening piece, particularly a kind of bolt.

Background technique

Bolt is a kind of fastening piece the most frequently used in the productive life, and traditional bolt head is generally regular hexagon or inner hexagonal hole shape, therefore needs to carry out dismounting with specific instrument, when being subjected to the instrument restriction, can't realize dismounting, and is very inconvenient.

The model utility content

(1) technical problem that will solve

The technical problems to be solved in the utility model provides a kind of bolt of realizing dismounting by multiple instrument.

(2) technological scheme

For solving the problems of the technologies described above, the utility model provides a kind of bolt, comprise threaded body 1 and the hexagon head 2 that is installed in the end of described threaded body 1, offer outside thread on the described threaded body 1, the end of described hexagon head 2 offers cross operation unit 22, the end face of described hexagon head 2 offers inner hexagonal hole 21, and described inner hexagonal hole 21 is coaxial with described threaded body 1.

Further, described cross operation unit 22 is four rectangle grooves that circumferentially are distributed on the end of described hexagon head 2.

Further, the degree of depth of described inner hexagonal hole 21 is greater than the degree of depth of described rectangle groove.

Further, the degree of depth of described inner hexagonal hole 21 is less than 3/4 of the height of described hexagon head 2.

(3) beneficial effect

The utility model bolt is not limited by instrument, can realize dismounting by multiple instrument, and is very convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model bolt;

Fig. 2 is the plan view of the utility model bolt.

Embodiment

Consult Fig. 1 and Fig. 2, the utility model provides a kind of bolt, comprise threaded body 1 and the hexagon head 2 that is installed in the end of this threaded body 1, offer outside thread at threaded body 1, the end of hexagon head 2 offers cross operation unit 22, and specifically, this cross operation unit 22 is four rectangle grooves that circumferentially are distributed on the end of hexagon head 2, end face at hexagon head 2 offers inner hexagonal hole 21, and this inner hexagonal hole 21 is coaxial with threaded body 1; For proof strength, the degree of depth of inner hexagonal hole 21 is greater than the degree of depth of rectangle groove, and the degree of depth of inner hexagonal hole 21 is less than 3/4 of the height of hexagon head 2 simultaneously, and is preferred, the degree of depth of inner hexagonal hole 21 be hexagon head 2 height 1/2.

The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. bolt, it is characterized in that: comprise threaded body (1) and be installed in the hexagon head (2) of the end of described threaded body (1), described threaded body offers outside thread on (1), the end of described hexagon head (2) offers cross operation unit (22), the end face of described hexagon head (2) offers inner hexagonal hole (21), and described inner hexagonal hole (21) is coaxial with described threaded body (1).

2. bolt as claimed in claim 1, it is characterized in that: described cross operation unit (22) is four rectangle grooves that circumferentially are distributed on the end of described hexagon head (2).

3. bolt as claimed in claim 2, it is characterized in that: the degree of depth of described inner hexagonal hole (21) is greater than the degree of depth of described rectangle groove.

4. as each described bolt of claim 1 to 3, it is characterized in that: the degree of depth of described inner hexagonal hole (21) is less than 3/4 of the height of described hexagon head (2).