CN205991072U - A kind of T-bolt - Google Patents

Abstract

The utility model discloses a kind of T-bolt, this T-bolt is integral type structure, and including the head being sequentially connected, block, bar portion, described head cross-sectional is hexagonal, and this hexagon is upper and lower, left and right is all symmetrical；Described block circular in cross-section；Described bar portion includes light bar portion and threaded portion, and described smooth bar portion connects described block, and the diameter of described smooth bar portion is not less than the external diameter of described threaded portion, and described polished rod minister's degree is equal to described flighted length.This utility model is used for the equipment such as elevator, easy for installation, solid firmly, the design of head is easier stress when mounted and can carry larger torsion it is ensured that fixing fastness.

Description

A kind of T-bolt

Technical field

This utility model is related to fastener areas, more particularly, to a kind of T-bolt.

Background technology

Bolt is a kind of conventional fastenings, plays an important role in life produces.The fixing intensity of bolt Not only the fixing fastness of impact equipment, on the visual plants such as elevator, has an effect on the safety of people.

When screwing, head stress point is difficult stress or head can carry torsion is too small all to have a strong impact on bolt to bolt Fixing intensity.

Utility model content

In view of the above, the purpose of this utility model is to provide a kind of T-bolt, to solve prior art presence Problem.

This utility model adopts the following technical scheme that：

A kind of T-bolt, this T-bolt is integral type structure, including the head being sequentially connected, block, bar portion, described head Cross section is hexagonal, and this hexagon is upper and lower, left and right is all symmetrical；Described block circular in cross-section；Described bar portion includes light Bar portion and threaded portion, described smooth bar portion connects described block, and the diameter of described smooth bar portion is not less than the outer of described threaded portion Footpath, described polished rod minister's degree is equal to described flighted length.

This utility model provides a kind of T-bolt it is preferable that six interior angle angles of described head cross-sectional are followed successively by 150°、105°、105°、150°、105°、105.

This utility model provides a kind of T-bolt it is preferable that being provided with three grooves in described head end, three institutes Stating groove is in that triangle is arranged.

This utility model provides a kind of T-bolt it is preferable that the equal rounding of rib up and down of the described head left and right sides.

This utility model provides a kind of T-bolt it is preferable that described smooth gauge diameter is less than described block diameter.

This utility model provide a kind of T-bolt it is preferable that described block connect described smooth one end of the rod be provided with some Burr, some described burrs are circularly and evenly distributed.

This utility model provides a kind of T-bolt it is preferable that described burr cross section is in isosceles trapezoid.

Advantage of the present utility model and having the beneficial effect that：

1. this utility model is used for the equipment such as elevator, easy for installation, and solid firm, the design of head is more held when mounted Easily stress and larger torsion can be carried it is ensured that fixing fastness.

2. being provided with three in this utility model head end is in the groove that triangle is arranged, tentatively screwing for bolt, Simple and practical.

3. it is provided with burr on this utility model block, cross section is in that the burr of isosceles trapezoid decreases bolt and equipment Contact area, increases pressure under same pressure, improves the fixing fastness of bolt further.

Brief description

Below in conjunction with the accompanying drawings preferred implementation of the present utility model is carried out describing in detail or preferably, wherein,

Fig. 1 is a kind of schematic diagram of T-bolt of this utility model；

Fig. 2 is a kind of top view of T-bolt of this utility model；

Fig. 3 is a kind of schematic diagram of the cross section of the burr of T-bolt of this utility model.

In figure：1st, head；11st, groove；2nd, block；21st, burr；3rd, bar portion；31st, light bar portion；32nd, threaded portion.

Specific embodiment

In conjunction with Fig. 1 to Fig. 3, to this utility model, a kind of embodiment of T-bolt is described further.

A kind of T-bolt, this T-bolt is integral type structure, including the head 1 being sequentially connected, block 2, bar portion 3, institute State head 1 cross section hexagonal, this hexagon is upper and lower, left and right is all symmetrical；Described block 2 circular in cross-section；Described bar portion 3 Including light bar portion 31 and threaded portion 32, described smooth bar portion 31 connects described block 2, and the diameter of described smooth bar portion 31 is not less than described The external diameter of threaded portion 32 screw thread, described smooth bar portion 31 length is equal to described threaded portion 32 length, this T-bolt structure design letter Single, easy for installation, fixation.

Described head 1 cross section six interior angle angle be followed successively by 150 °, 105 °, 105 °, 150 °, 105 °, 105, angle Design is that head 1 is easier stress and can carry bigger torsion.

Three grooves 11 are provided with described head 1 end face, three described grooves 11 are in that triangle is arranged, groove 11 is used for will Bolt tentatively screws, and quickly can be screwed in bolt in screw using electrical equipment.

The equal rounding of rib up and down of described head 1 left and right sides, it is to avoid scraping.

Described smooth bar portion 31 diameter is less than described block 2 diameter, and described block 2 connects described smooth bar portion 31 one end and is provided with Some burrs 21, some described burrs 21 are circularly and evenly distributed, and described burr 21 cross section is in isosceles trapezoid, when bolt screws When, burr 21 is contacted with equipment, and burr 21 can reduce the area of contact, at the same pressure raising pressure, and further one Individual fixing fastness.

Finally it should be noted that：The foregoing is only preferred embodiment of the present utility model, be not limited to this Utility model, although being described in detail to this utility model with reference to the foregoing embodiments, for those skilled in the art For, it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some technical characteristics Carry out equivalent, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made etc., all Should be included within protection domain of the present utility model.

Claims (7)

1. a kind of T-bolt is it is characterised in that this T-bolt is integral type structure, including the head being sequentially connected（1）, block （2）, bar portion（3）, described head（1）Cross section is hexagonal, and this hexagon is upper and lower, left and right is all symmetrical；Described block（2）Transversal Face is rounded；Described bar portion（3）Including light bar portion（31）And threaded portion（32）, described smooth bar portion（31）Connect described block（2）, Described smooth bar portion（31）Diameter be not less than described threaded portion（32）The external diameter of screw thread, described smooth bar portion（31）Length is equal to described Threaded portion（32）Length.

2. a kind of T-bolt according to claim 1 is it is characterised in that described head（1）Cross section six interior angle angle Be followed successively by 150 °, 105 °, 105 °, 150 °, 105 °, 105.

3. a kind of T-bolt according to claim 1 and 2 is it is characterised in that described head（1）It is provided with three on end face Individual groove（11）, three described grooves（11）Arrange in triangle.

4. a kind of T-bolt according to claim 1 is it is characterised in that described head（1）The rib up and down of the left and right sides is equal Rounding.

5. a kind of T-bolt according to claim 1 is it is characterised in that described smooth bar portion（31）Diameter is less than described gear Block（2）Diameter.

6. a kind of T-bolt according to claim 5 is it is characterised in that described block（2）Connect described smooth bar portion（31） One end is provided with some burrs（21）, some described burrs（21）It is circularly and evenly distributed.

7. a kind of T-bolt according to claim 6 is it is characterised in that described burr（21）Cross section is in isosceles trapezoid.