CN207848939U

CN207848939U - A kind of flat octagonal bar

Info

Publication number: CN207848939U
Application number: CN201820127915.2U
Authority: CN
Inventors: 王林; 庞新杰
Original assignee: QINGDAO IRON BULL INDUSTRIAL Co Ltd
Current assignee: QINGDAO IRON BULL INDUSTRIAL Co Ltd
Priority date: 2018-01-25
Filing date: 2018-01-25
Publication date: 2018-09-11
Anticipated expiration: 2028-01-25

Abstract

The utility model provides a kind of flat octagonal bar, and the body of rod section of the flat octagonal bar is flat octagonal, and the height in section is 1.7 1.8 times of width.The flat octagonal bar is mainly used for the products such as nail puller, crowbar, and in the case where cross-section accumulates, Y-axis bending resistant section coefficient increases the body of rod of the cross sectional shape, reaches better strength character, more saves material.

Description

A kind of flat octagonal bar

Technical field

The utility model is related to a kind of bodies of rod, specifically, being related to a kind of for nail puller, the flat octagonal bar of crowbar.

Background technology

The products such as conventional nail puller, crowbar, generally use hexagonal bar/illiciumverum bar/round bar, the body of rod of this cross sectional shape, In the case where cross-section accumulates, Y-axis bending resistant section coefficient is usually smaller, and to reach higher Y-axis bending resistant section coefficient, makes It reaches better performance, it is necessary to which increasing section accumulates, and is bound to cause waste of material in this way.

Invention content

The utility model provides a kind of flat octagonal bar, and for the body of rod of the cross sectional shape in the case where cross-section accumulates, Y-axis is anti- Curved section factor increases, and reaches better strength character, more saves material.

In order to solve the above-mentioned technical problem, the technical solution of the utility model is,

The body of rod section of a kind of flat octagonal bar, the flat octagonal bar is flat octagonal, and the height in section is width 1.7-1.8 again.

Further, the four corners in the body of rod section are arc transition.The circular arc in the corner of four arc transitions half Diameter is 15mm.

Further, the top surface, bottom surface and two sides of the body of rod are plane.

Wherein, the height of the planar section of the body of rod side is the golden section size of body of rod whole height.

Further, the section specification of the flat octagonal bar is 21mmx12mm or 25mmx14mm.

21mmx12mm, that is, depth of section is 21mm, width 12mm；

25mmx14mm, that is, depth of section is 25mm, width 14mm.

The flat octagonal bar of the utility model is mainly used for the products such as nail puller, crowbar.

In the case where cross-section accumulates, Y-axis bending resistant section coefficient increases the flat octagonal bar of the utility model, reaches better Strength character more saves material.

Description of the drawings

Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：

Fig. 1 is the front view of flat octagonal bar specific embodiment 1 described in the utility model；

Fig. 2 is the stereogram of flat octagonal bar specific embodiment 1 described in the utility model；

Fig. 3 is the Section A-A figure of Fig. 1；

Fig. 4 is the front view of flat octagonal bar specific embodiment 2 described in the utility model；

Fig. 5 is the stereogram of flat octagonal bar specific embodiment 2 described in the utility model；

Fig. 6 is the section B-B figure of Fig. 1.

Specific implementation mode

In order to make the object, technical solution and advantage of utility model be more clearly understood, below in conjunction with drawings and examples The utility model is described in further detail.It should be appreciated that embodiment described herein is only used to explain this practicality It is novel, it is not used to limit the utility model.

A kind of flat octagonal bar, body of rod section are flat octagonal, and the height in section is 1.7-1.8 times of width, the body of rod The four corners in section are arc transition.Top surface, bottom surface and the two sides of the body of rod are plane, wherein are put down body of rod side The height of face part is the golden section size of body of rod whole height.The flat octagonal bar of the utility model be mainly used for nail puller, The products such as crowbar.

Embodiment 1

With reference to shown in figure 1-3, a kind of section specification of flat octagonal bar is 21mmx12mm, and the H1 in figure is body of rod height 21mm, W1 are body of rod width 12mm.

1) this flat octagonal bar is mainly used in the products such as nail puller, crowbar.

2) two sides use golden section, and corner angle are clearly demarcated, good visual effect.H1 in figure is 13mm, d1 7mm.Four is small It is 15mm, comfortable feel that face, which uses arc transition, arc radius R1,.Two top surfaces are plane, and stationarity is good, is not easy to sidewinder.

Table 1 is the comparison (situation of cross-section product of flat octagonal bar and hexagonal bar/illiciumverum bar/round bar Y-axis bending resistant section coefficient Under)：

Table 1

As it can be seen from table 1 in the case where cross-section accumulates, the Y-axis bending resistant section coefficient of flat illiciumverum bar 21x12 is obviously excellent It is their 1.376 times/1.418 times/1.457 times respectively in hexagonal bar/illiciumverum bar/round bar.Same material can reach more Good performance.When reaching equality strength, this flat octagonal bar more saves material, energy saving for country.

Embodiment 2

With reference to shown in figure 4-6, a kind of section specification of flat octagonal bar is 25mmx14mm, and the H2 in figure is body of rod height 25mm, W2 are body of rod width 14mm.

2) two sides use golden section, and corner angle are clearly demarcated, good visual effect.H2 in figure is 15.4mm, d2 8mm.Four It is 15mm, comfortable feel that facet, which uses arc transition, arc radius R2,.Two top surfaces are plane, and stationarity is good, is not easy to sidewinder.

Table 2 is the comparison (situation of cross-section product of flat octagonal bar and hexagonal bar/illiciumverum bar/round bar Y-axis bending resistant section coefficient Under)：

Table 2

From table 2 it can be seen that in the case where cross-section accumulates, the Y-axis bending resistant section coefficient of flat illiciumverum bar 25x14 is obviously excellent It is their 1.388 times/1.427 times/1.47 times respectively in hexagonal bar/illiciumverum bar/round bar.Same material can reach more Good performance.When reaching equality strength, this flat octagonal bar more saves material, energy saving for country.

The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example Protect range.

Claims

1. a kind of flat octagonal bar, it is characterised in that：The body of rod section of the flat octagonal bar is flat octagonal, and the height in section is The four corners of 1.7-1.8 times of width, the body of rod section are arc transition, top surface, bottom surface and the both sides of the body of rod Face is plane, and the height of the planar section of the body of rod side is the golden section size of body of rod whole height.

2. flat octagonal bar according to claim 1, it is characterised in that：The section specification of the flat octagonal bar is 21mmx12mm Or 25mmx14mm.