KR200205868Y1 - Pipe combination structure of clamp for scaffold - Google Patents

Abstract

The present invention relates to a pipe binding structure of a clamp for scaffolding, and its purpose is to improve the seating portion of the base member so that the scaffolding pipe can be more firmly bound.

According to the pipe binding structure of the clamp for scaffolding according to the present invention, the semicircular seating portion 11d on which both side surfaces 11c of the base member 11 are provided and on which the scaffolding pipe 40 is seated is recessed (11e, e). And the concave-convex surface on which iron (11f, 凸) is repeated.

Accordingly, after mounting the scaffold pipe 40 to the seating portion 11d and tightening the base member 11 and the cover member 14 through the fastening bolt 12 and the nut 13, the scaffold pipe 40 is placed on the surface of the scaffold pipe 40. Since the iron 11f portion of the seating portion 11d is compressed while forming a mark, the scaffold pipe 40 can be bound more firmly without turning.

Description

Pipe combination structure of clamp for scaffold

The present invention relates to a scaffolding clamp used in a construction site, and more particularly to a pipe binding structure of a scaffolding clamp to more firmly bind the scaffolding pipe.

In general, scaffold clamps are used as connecting fasteners when installing temporary workpieces that mount strips and joists and scaffolds on scaffold columns to build high-rise buildings. It is usually made of metal and is joined by tightening bolts and nuts with excellent fastening force.

This conventional scaffolding clamp has a first binding device and a second binding device for binding the crosspiece and the longitudinal cross, respectively, and they are typically combined to form 90 degrees.

The first and second binding devices each have a base member having a semicircular seating portion, one end of which is rotatably coupled to the front end of the base member, and the other end of which has a threaded thread, and the rear end of which is hinged to the rear of the base member. It is foldable and includes a cover member provided with an insertion groove so that the other end of the tightening bolt is inserted into the front end with a margin.

Therefore, the scaffold pipe is seated on the seating portion of the base member while the cover member is folded, and then the cover member is rotated again to cover the seating portion to temporarily tighten the scaffolding pipe. In this state, when the fastening bolt is inserted into the insertion groove and the nut is tightened therein, the base member and the cover member are firmly tightened by the tightening force of the fastening bolt and the nut to the outer circumference of the scaffold pipe.

However, in such a conventional scaffold clamp, since the scaffold pipe is coupled while being in surface contact with the seating portion, there is a limit to firmly tighten the scaffold pipe.

That is, the scaffold pipe is coupled to the other outer peripheral portion is tightened through the cover member in a state in which the outer peripheral portion is seated on the seating portion of the base member. As such, the scaffold pipe is tightened while the outer periphery is in surface contact with the seating portion and the cover member, and thus, when the tightening force of the fastening bolt and the nut is weak, the scaffold pipe may be inclined between the seating portion and the cover member, and in severe cases, There is a drawback to it.

The present invention is to solve this problem, an object of the present invention is to provide a pipe binding structure of the scaffolding clamp that can more firmly bind the scaffold pipe by improving the structure of the mounting portion of the base member on which the scaffold pipe is seated. will be.

1 is a perspective view showing a clamp for a scaffold according to the present invention.

Figure 2 is a perspective view showing a state of fastening the scaffolding pipe of the clamp for scaffolding according to the present invention.

3 is a cross-sectional view taken along the line III-III of FIG. 2.

* Description of the symbols for the main parts of the drawings *

10,20.Binding device 11,21.Base member

11d, 21d .. Seat 11e ..

11e..12.22.Tightening bolt

13, 23 Nuts 14, 24 Cover members

40,50 .. scaffolding pipes

The present invention for achieving this object is;

A base member having semi-circular seating portions formed on both sides thereof so that the bottom and rear wall surfaces are provided and the scaffold pipes are seated thereon, and a nut support portion having one end foldably coupled to the upper sides of both sides of the base member and having an insertion groove open at the other end center. A first binding member having a semicircular cover member and a tightening bolt having one end coupled to the bottom surface of the base member so as to be rotatable and having a screw threaded on the other outer periphery to be inserted into an insertion groove, and then a nut coupled thereto. A scaffolding clamp in which a device and a second binding device are fastened to base surfaces of a base member,

The seating portion is characterized in that the concave and convex surface is formed of a concave and convex surface repeatedly formed so that the outer periphery of the scaffolding pipe can be firmly bound.

With this configuration, when the scaffolding pipe is seated on the seating portion of the base member, the cover member is covered, and the nut is tightened to the tightening bolt, the scaffolding pipe is more firmly bound without going around through the seating portion formed with the uneven surface.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly the accompanying drawings, Figure 1 is a perspective view of the clamp for scaffolding according to the present invention, Figures 2 and 3 is a cross-sectional view showing the clamping state of the scaffolding pipe of the clamp for the present invention.

Scaffold clamp according to the present invention, as shown in Figure 1, the first binding device 10 for binding the cross-section scaffold pipe, and the first binding device 10 and 90 to bind the longitudinal scaffold pipe. It also includes a second binding device 20 fixed through the riveting means 30 to cross.

The first and second binding devices 10 and 20 have a base member 11 and 21 provided with semi-circular seating portions 11d and 21d, and a rotational movement in front of the base members 11 and 21. Tightening bolts 12 and 22 coupled to each other, and shafts 14c and 24c are coupled to one end to cover seating portions 11d and 21d of the base members 11 and 21, and the other end of the tightening bolts 12 and 22d. 12) and 22 are provided with cover members 14 and 24, respectively. (Detailed components of the first binding device 10 and the second binding device 20 are the same, hereinafter will be described the configuration of the present invention only through the components of the first binding device 10.)

The base member 11 is composed of a metal plate having a predetermined thickness having a rectangular bottom 11a, a rear wall 11b bent at 90 degrees, and both sides 11c, and the seating portion 11d is formed of the base member 11. A semicircular shape is provided on both side surfaces 11c so that a part of the outer circumference of the scaffold pipe is seated. In addition, reference numeral '11g' is a pair of brackets provided on the front side of the bottom surface 11a of the base member 11 to fix the tightening bolt 12.

The seating portion 11d formed to have such a predetermined curvature is composed of a concave-convex surface in which the concave and convex portions 11e and 11f are repeated, which is firmly contacted with the outer circumference of the scaffold pipe at a predetermined interval. To fix it.

That is, when the scaffold pipe is seated on the seating portion 11d formed of the uneven surface, and the nut 13 is tightened to the tightening bolt 12, the iron 11f, 부위 part slightly plastically deforms the scaffold pipe surface at a predetermined interval. It will form a mark. This prevents the scaffolding pipe from failing and binds more firmly, which will be described in detail in the following description.

And, the cover member 14 is composed of a semi-circular metal plate shape and one end is foldably coupled to the upper portion of both sides 11c of the base member 11 through the shaft 14c, it is seated on the seating portion (11d) The outer periphery of the scaffolding pipe will be wrapped. In addition, the other end of the cover member 14 is formed with a nut support portion 14a, the lower end of the nut 13 abuts when tightening the nut 13 to the tightening bolt 12, the nut support portion 14a is tightening bolt 12 The insertion groove 14b of a predetermined width is provided to be open so that the end of the tube is loosely inserted.

In addition, the tightening bolt 12 is configured to extend a predetermined length in the shape of a rod and the end is coupled to the base member 11 to be rotatable. That is, one end 12a of the tightening bolt 12 is coupled to the shaft 12c so as to be rotatable to the bracket 11e formed at the front side of the bottom 11a of the base member 11, and the other end 12b configured as a free end. ) On the outer circumference, threads are machined to tighten the nuts 13.

Next, the operation and effect of the clamp for the scaffold according to the present invention configured as described above will be described with reference to FIGS. 2 and 3.

First, the cover member 14 of the first binding device 10 is flipped upward, and then the cross section scaffolding pipe 40 is seated on a seating portion 11d formed of an uneven surface. Then, the cover member 14 is rotated again to the front side of the base member 11 to temporarily tighten the cross section scaffolding pipe 40.

Subsequently, when the tightening bolt 12 is rotated upward, the other end 12b of the tightening bolt 12 is accommodated in the insertion groove 14b of the cover member 14.

When the nut 13 is tightened to the other end 12b of the tightening bolt 12 in this state, the base member 11 and the cover member 14 are connected to the cross section by the binding force between the tightening bolt 12 and the nut 13. The pipe 40 is firmly bound to the outer periphery. The nut 13 abuts against the nut support 14a and is tightened firmly.

At this time, the cross section scaffolding pipe 40 is part of the outer circumference is fixed to the seating portion (11d) of the base member 11, the base member 11 and the cover member 14 is tightened through the nut 13 In the process, the iron (11f, 凸) portion of the seating portion 11d consisting of the uneven surface slightly plastic deformation of the surface of the cross section scaffolding pipe (40). That is, the iron (11f, 凸) portion of the mounting portion 11d is squeezed to the cross section scaffolding pipe (40), thereby forming a bonding mark with the iron (11f, 부위) portion on the surface of the cross section scaffolding pipe (40). do.

Accordingly, the cross section scaffolding pipe 40 is prevented from slipping between the seating portion 11d and the cover member 14 of the base member 11 and more firmly bound.

When the longitudinal scaffolding pipe 50 is bound to the second binding device 20 in the same manner, the crossbar scaffolding pipe 40 and the longitudinal scaffolding pipe are connected by the first and second binding devices 10 and 20. 50 is firmly fixed to the grid.

On the other hand, the technical idea is applied to the clamp for the scaffold fixed to cross the first binding device 10 and the second binding device 20 to form an angle of 90 degrees through the riveting means 30, but is not limited thereto. Even if the first binding device 10 and the second binding device 20 is applied to the scaffolding clamp is mounted to enable mutual rotational movement of course can achieve the intended purpose of the present invention.

As described in detail above, according to the pipe binding structure of the clamp for scaffolding according to the present invention, the semicircular seating portion provided corresponding to both side surfaces of the base member and on which the scaffolding pipe is seated is composed of an uneven surface in which irregularities and iron are repeated.

Accordingly, when the scaffold pipe is seated on the seating part and the base member and the cover member are tightened through the fastening bolt and the nut, the iron part of the seating part is pressed on the surface of the scaffolding pipe to form a mark so that the scaffold pipe is firmly fixed. There is an advantage of being bound.

Claims (1)

Base members 11 and 21 having bottom surfaces 11a and rear wall surfaces 11b and semicircular seating portions 11d and 21d correspondingly formed on both side surfaces 11c so that the scaffold pipes 40 and 50 are seated. And a semicircular cover member having a nut support portion 14c having one end foldably coupled to an upper portion of both side surfaces 11c of the base members 11 and 21 and having an insertion groove 14b open at the other end of the base member 11 and 21. 14 and 24 and one end 12a are rotatably coupled to the front side of the bottom surfaces 11a of the base members 11 and 21, and a thread is machined on the outer circumference of the other end 12b to insert the groove 14b. The first binding device 10 and the second binding device 20 each having a tightening bolt 12 to which the nut 13 is coupled after being rotated so as to be inserted into the bottom surface of the base member 11 and 21. (11a) In a scaffold clamp fastened to each other, The seating portions (11d) (21d) is formed of a concave-convex surface formed by repeating the concave (11e, 凹) and iron (11f, 凸) to firmly bond the outer periphery of the scaffold pipe (40, 50) The pipe binding structure of the clamp for scaffolding.