CN2519833Y

CN2519833Y - Fastener for scaffold

Info

Publication number: CN2519833Y
Application number: CN 01276695
Authority: CN
Inventors: 张占军
Original assignee: 赵艳
Priority date: 2001-12-09
Filing date: 2001-12-09
Publication date: 2002-11-06
Anticipated expiration: 2011-12-09

Abstract

The utility model relates to a scaffold buckling component. In order to reduce the weight of existing scaffold, reduce the cost and improve mechanical strength, the utility model comprises a main buckling component and an auxiliary component buckling thereon, the main buckling component arranges four equidistance distributed vertical trapezoid tenons on the outer circumference of the round barrel body, the tenon arranges symmetrical concave grooves on the two sides of the neck part, the tenon appears outer large inner small trapezoid shape in lateral direction. The auxiliary buckling component is of round plate shape with one side is provided with a concave groove cooperating with the tenon. The utility model has advantages of light weight, material saving, low cost, strong mechanical strength and anti-draw strength after buckling.

Description

The scaffold fastener

Technical field:

The utility model relates to a kind of coupling arrangement of scaffold, particularly relates to a kind of scaffold fastener.

Technical background:

Set up complex process when the fastener of a large amount of steel pipe scaffolds that use supports at present, vertical load poor reliability.Effect was better when the bowl fastening type steel pipe scaffold was used to support, and when still being used for external scaffolding, its resistance to overturning is poor, needed a large amount of braces keep balance.Though the scaffold of other type can satisfy the pin hand simultaneously and support two kinds of functions, its design is unreasonable, is not too heavy, waste material, and the cost height is exactly that tensile strength is low, damages easily.

Summary of the invention:

The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, and a kind of saving material is provided, and cost is low, and the big scaffold fastener of mechanical strength.

For achieving the above object, the utility model scaffold fastener comprise main fastener and with the auxiliary fastener of its snapping, described main fastener is that the periphery of drum shape body is shaped on four tenons that equidistantly distribute, these tenon neck both sides are shaped on the groove of symmetry, and this tenon end is up-small and down-big trapezoidal shape; Described auxiliary fastener is a disc, and the one side is shaped on the notch that matches with above-mentioned tenon.Help like this guaranteeing the mechanical strength of this fastener and saving material, and can increase the tensile strength behind the snapping.

As optimization, the groove of described tenon neck is triangle or circular arc.Help guaranteeing the mechanical strength of this fastener like this, and it is more reasonable that stress point is distributed.

As optimization, the body of described main fastener middle part is hollow, and described tenon end also is shaped on hollow hole; Described auxiliary fastener all is shaped on axial hollow hole with both sides below notch.Help saving material like this and alleviate deadweight.

As optimization, described auxiliary fastener is shaped on the protruding pipe that is used for the stay pipe connection at the opposite side of its notch.More conveniently like this connect, and can improve linking intensity with stay pipe.

After adopting technique scheme, under the effect of gravity load or horizontal loading, produce engagement force between the main fastener tenon of the utility model scaffold fastener and the contact surface of auxiliary fastener notch, hammer force and the increase of vertical load and increase of engagement force when installing.Every group of tenon and notch all can form independently rock-steady structure under the effect of engagement force, thereby obtain reliable resistance to overturning.Main fastener can be connected on the column during use, auxiliary fastener is connected on the cross bar.It is rational in infrastructure, can give full play to the strength character of material, existing fastener can bear bigger load under similarity condition, the stress surface of snapping part is big, connects firmly, and tensile strength is big, again owing to be shaped on hollow hole in the appropriate location of main fastener and secondary fastener, can save steel greatly, reduce cost, reduce deadweight and improve mechanical strength.

Description of drawings:

Fig. 1 is the stereogram of first kind of embodiment of the utility model scaffold fastener;

Fig. 2 is the auxiliary fastener stereogram of first kind of embodiment of the utility model scaffold fastener;

Fig. 3 is the vertical view of first kind of embodiment of the utility model scaffold fastener;

Fig. 4 is the stereogram of second kind of embodiment of the utility model scaffold fastener;

Fig. 5 is the auxiliary fastener stereogram of second kind of embodiment of the utility model scaffold fastener;

Fig. 6 is the vertical view of second kind of embodiment of the utility model scaffold fastener;

Fig. 7 is the lateral view of the auxiliary fastener of the utility model scaffold fastener.

The specific embodiment:

Be further described below in conjunction with accompanying drawing:

Embodiment one, the utility model scaffold fastener comprise main fastener and with the auxiliary fastener 1 of its snapping, described main fastener is that the periphery of drum shape body 2 is shaped on four tenons that equidistantly distribute, these tenon neck 3 both sides are shaped on the groove 4 of symmetry, and the groove 4 of described tenon neck 3 is a circular arc.This tenon end 5 is up-small and down-big trapezoidal shape; Described auxiliary fastener 1 is a disc, and the one side is shaped on the notch 6 that matches with above-mentioned tenon.Body 2 middle parts of described main fastener are hollow, and described tenon end 5 also is shaped on hollow hole 7; Described auxiliary fastener 1 all is shaped on axial hollow hole 7 with both sides below notch 6.Described auxiliary fastener 1 is shaped on the protruding pipe 9 that is used for stay pipe 8 connections at the opposite side of its notch 6.

Embodiment two, the utility model scaffold fastener comprise main fastener and with the auxiliary fastener 1 of its snapping, described main fastener is that the periphery of drum shape body 2 is shaped on four tenons that equidistantly distribute, these tenon neck 3 both sides are shaped on the groove 4 of symmetry, and the groove 4 of described tenon neck 3 is triangles.This tenon end 5 is up-small and down-big trapezoidal shape; Described auxiliary fastener 1 is a disc, and the one side is shaped on the notch 6 that matches with above-mentioned tenon.Body 2 middle parts of described main fastener are hollow, and described tenon end 5 also is shaped on hollow hole 7; Described auxiliary fastener 1 all is shaped on axial hollow hole 7 with both sides below notch 6.Described auxiliary fastener 1 is shaped on the protruding pipe 9 that is used for stay pipe 8 connections at the opposite side of its notch 6.

Claims

1, a kind of scaffold fastener, it comprise main fastener and with the auxiliary fastener (1) of its snapping, it is characterized in that described main fastener is that the periphery of drum shape body (2) is shaped on four tenons that equidistantly distribute, these tenon neck (3) both sides are shaped on the groove (4) of symmetry, and this tenon end (5) is up-small and down-big trapezoidal shape; Described auxiliary fastener (1) is a disc, and the one side is shaped on the notch (6) that matches with above-mentioned tenon.

2, scaffold fastener according to claim 1 is characterized in that the groove (4) of described tenon neck (3) is triangle or circular arc.

3, scaffold fastener according to claim 1 and 2 is characterized in that body (2) middle part of described main fastener is hollow, and described tenon end (5) also is shaped on hollow hole (7); Described auxiliary fastener (1) all is shaped on axial hollow hole (7) with both sides below notch (6).

4, scaffold fastener according to claim 3 is characterized in that described auxiliary fastener (1) is shaped on the protruding pipe (9) that is used for same stay pipe (8) connection at the opposite side of its notch (6).