KR102050079B1 - Pipe connector of scaffold pipe - Google Patents

Abstract

The present invention relates to a connector for scaffolding pipes, comprising: a scaffolding pipe body having a through-hole therein; a connecting unit one side of which is fixed to the scaffolding pipe, and which consists of one pair of plates having first recesses vertically formed on mutually opposing surfaces and second recesses formed in a shape corresponding to the outer surface of one side of a bolt; a connecting groove which is an opening on an upper side of the connecting unit to form an angular U-shaped connecting space; a first insertion portion formed to vertically penetrate the connecting unit by mutual coupling of the first recesses; a second insertion portion formed on an inner side of the connecting unit to have a shape corresponding to the outer surface of a bolt head by mutual coupling of the second recesses; a moving bar coupled to the inside of the first insertion portion to be movable upward and downward, and having an inclined surface formed on an outer side to press the outer circumferential surface of the scaffolding pipe connected to the connecting groove; and a connecting means including a bolt and a nut, wherein the bolt is composed of the bolt head seated in the second insertion portion and a bolt shaft portion formed on a side of the bolt head to be inserted into the through-hole, and the nut is coupled and fixed to an end of the bolt shaft portion.

Description

Fastening device for scaffold pipe joining {Pipe connector of scaffold pipe}

The present invention relates to a fastening device for scaffolding pipe coupling, and more particularly, to a fastening device for scaffolding pipe coupling for connecting with other scaffolding pipes in scaffolding pipes used in building construction or shipbuilding.

Scaffolding pipe is used for building construction and ship building, and it is made of light and high-strength material which is hollow pipe and is made for easy installation and dismantling.

Prior arts related to such scaffolding pipes include Application Nos. 20-2003-0040953, 20-1992-0012513, and 10-2007-060984 filed to the Korean Intellectual Property Office.

Such scaffold pipes are connected to each other in a lattice form by connecting a plurality of scaffold pipes, and in this process, different scaffold pipes are connected by using a fastening device.

This fastening device secures the other scaffolding pipe through a clamp fastened to the body of the scaffolding pipe, and therefore, fixing and detaching the clamping is important.

However, the conventional fastening device used for fastening the scaffolding pipe has a problem in that it takes a long time and labor to install and detach the scaffolding pipe because it is difficult to fasten and separate.

In addition, as the pipe fastening device capable of connecting a plurality of pipes is welded to the scaffolding pipe, damage due to welding may occur. Also, as the fastening device is integrally installed to the scaffolding pipe, the coupling position cannot be adjusted, thereby improving workability. The problem is that it is significantly lowered.

The fastening device for scaffold pipe coupling according to the present invention provides a fastening device that is easy to fasten and separate, thereby reducing the time and labor required for installation and separation of the scaffold pipe.

In addition, it is possible to easily detach the fastening device from the scaffolding pipe, to prevent damage by welding, and to change the coupling position according to the working environment can be further improved workability.

According to the present invention, a scaffold pipe body having a through hole formed therein, a side surface fixed to the scaffold pipe body, a first recessed portion formed up and down on opposite surfaces, and a recess formed in a shape corresponding to one outer surface of the bolt head 2 a fastener to which a pair of plates formed with depressions are coupled, an upper side of the fastener is opened, a fastening groove for forming a C-shaped fastening space, and a top and bottom inside of the fastener by mutual coupling of the first recesses. A first insertion portion formed through the second insertion portion, a second insertion portion formed in a shape corresponding to the outer surface of the bolt head inside the fastener by mutual coupling of the second depression portion, and in the vertical direction inside the first insertion portion; Is coupled to be movable, the inclined surface is formed on the outer surface of the moving bar for pressing the outer circumferential surface of the scaffolding pipe coupled to the fastening groove, and seated on the second insertion portion It is formed on one side bolt head and the bolt head is characterized in that it comprises a fastening means including a nut that is fixedly fastened to the end of the bolt and bolt shaft is formed to be inserted into the through hole, the bolt shank.

In addition, the insertion hole is further provided in the lower portion of the through-hole of the scaffolding pipe body, characterized in that it further comprises a locking means protruding inclined at a predetermined angle on one side of the fastener to be inserted into the insertion hole.

In addition, preferably, one side surface of the fastener, the seating portion of the shape corresponding to the outer peripheral surface of the scaffolding pipe body is formed, characterized in that the surface contact with the scaffolding pipe body.

In addition, preferably, the fastening groove may be formed on the inner surface to protrude in a shape corresponding to the outer circumferential surface of the scaffolding pipe, and the plurality of first fastening protrusions which are in surface contact with the outer circumferential surface of the scaffolding pipe, and protrude in a sawtooth shape below the inner circumferential surface. And a second fastening protrusion for preventing idling of the scaffolding pipe.

In the fastening device for the scaffolding pipe coupling according to the present invention, the scaffolding pipe is inserted into the fastening groove, and the moving bar is moved vertically downward so that the inclined surface of the moving bar presses the outer circumferential surface of the scaffolding pipe. It can be fixed, and can be easily moved up and down when removing the movement bar, so as easy to fasten and detach the scaffolding pipe, the time and labor required to install and detach the scaffolding pipe is reduced.

In addition, at the time of coupling the fastener with the scaffolding pipe body serving as a support, a bolt can be firmly tightened through a bolt formed by a bolt shaft portion inserted into the through hole and a nut fastened and fixed to an end of the bolt shaft portion. Since the fastening device can be easily attached and detached from the scaffolding pipe, it is possible to prevent damage due to welding due to unnecessary welding work.

In addition, according to the working environment it is possible to change the bolting coupling position of the fastening means on the scaffolding pipe body has the effect of improving the workability more.

1 is a view showing a fastening device for coupling scaffolding pipe according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the cutting line aa ′ of FIG. 1.
FIG. 3 is a cross-sectional view taken along the cutting line bb ′ of FIG. 1.
4 is a perspective view of a fastener according to a first embodiment of the present invention.
5 is an exemplary use of the fastening device for the scaffold pipe coupling according to the first embodiment of the present invention.
6 is a view showing a moving bar according to a first embodiment of the present invention.
7 is a view showing a fastening device for coupling scaffolding pipe according to a second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

First, the configuration of the fastening device for the scaffold pipe coupling according to the present invention will be described in detail, which is referred to FIG. 1.

1 is a view showing a fastening device for coupling scaffolding pipe according to a first embodiment of the present invention.

As shown in FIG. 1, a fastening device for coupling a scaffold pipe according to the present invention includes a fastener connected to a scaffold pipe body 100 and one side of the scaffold pipe body 100 to be fastened with another scaffold pipe ( 200, and includes a fastening groove 300, a first inserting part 400, a second inserting part 500, a moving bar 600, a fastening means 700, and a fixing means 800.

Scaffolding pipe body 100 is generally manufactured in the form of a light hollow pipe, such as aluminum, the through hole 110 is formed on the outer peripheral surface.

The through holes 110 are preferably spaced apart from each other by a predetermined interval, and the scaffold pipe body 100 is firmly fixed to the fastener 200 through the fastening means 700 inserted into and coupled to the through holes 110. It can be assembled into various structures through the fastener 200.

That is, the fastener 200 is fixed to one side of the scaffolding pipe body 100 by the fastening means 700, so that it can be fastened with other scaffolding pipes, which are referred to FIGS. 2 and 3. .

FIG. 2 is a cross-sectional view taken along the cutting line a-a 'shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the cutting line b-b' shown in FIG.

As shown in FIG. 2, the fastener 200 has one side fixed to the scaffolding pipe body 100 and a first recessed portion 211 formed to be recessed up and down on opposite surfaces, and one side outer surface of the bolt head. A pair of plates 210 having the second recessed portion 213 formed in a shape corresponding thereto are coupled to each other.

In addition, a seating portion 220 having a shape corresponding to the outer circumferential surface of the scaffolding pipe body 100 is formed on one side of the fastener 200, and is configured to be in surface contact with the scaffolding pipe body 100.

This improves the adhesion between the scaffolding pipe body 100 and the fastener 200, thereby giving an effect of enhancing structural safety.

In detail, the seating part 220 is formed as the third recessed parts 215 recessed in a shape corresponding to one outer surface of the scaffolding pipe body 100 on one side of the plate 210 are coupled to each other. .

In addition, preferably, by forming an elastic sealing member (not shown) on the inner circumferential surface of the seating portion 220, it is more in close contact with the outer circumferential surface of the scaffolding pipe body 100 to improve the holding force and at the same time prevent slipping The binding force can be further increased.

The sealing member may be formed of a rubber material, in addition to the rubber material, for example, may be formed of a material having silicon or other adhesion, and configured to be detachable to the inner circumferential surface of the seating part 220 and replaced and separated as necessary. This can greatly improve usability.

In addition, a first insertion part 400 is formed to penetrate up and down inside the fastener 200 by mutual coupling of the first recesses 211, and the first insertion part 400 will be described later. While providing a space for the moving bar 600 to be inserted to guide the vertical movement of the moving bar 600, details will be described later.

In addition, as shown in FIG. 3, the second insertion part 500 is formed in a shape corresponding to the outer surface of the bolt head inside the fastener 200 by mutual coupling of the second recesses 213. Is formed, the second insertion portion 500 provides a space in which the bolt head of the fastening means 700 will be described later.

In addition, when the plate 210 is coupled, each plate 210 is coupled by pressing using a mold without a separate welding process in a stacked state, which is referred to FIG. 4.

4 is a perspective view of a fastener according to a first embodiment of the present invention.

As shown in FIG. 4, the plate 210 includes a lower plate and an upper plate, and a plurality of protrusions 217 protruding upward are formed on both sides of an upper surface of the lower plate, and the protrusions on both sides of the upper plate. A plurality of receiving grooves 219 are formed at a position corresponding to 217.

That is, the upper and lower plates 210 are stacked so that the protrusion 217 is accommodated in the receiving groove 219, and the plate 210 is compressed by pressing the edges of the stacked upper and lower plates 210 using a press. ) Can be combined and fixed to the left and right.

That is, the present invention not only can reduce the man-hours by performing a separate welding process, but also has the effect of preventing durability degradation due to thermal deformation.

The plate joining process described above is equally applied to the second embodiment to be described later.

This concludes the fastener 200, the first inserting portion 400, and the second inserting portion 500.

Next, the fastening groove 300 is an upper side of the fastener 200 is opened to form a C-shaped fastening space, the fastening space can be inserted at least one or more scaffolding pipe (P) to be coupled to the , Which refers to FIG. 5.

5 is an exemplary use of the fastening device for the scaffold pipe coupling according to the first embodiment of the present invention.

As shown in FIG. 5, when the scaffolding pipe P to be fastened to the fastening groove 300 is inserted, the moving bar 600 is moved vertically downward to form an inclined surface formed on the side of the moving bar 600. The 610 may press the outer circumferential surface of the scaffold pipe P to fix the scaffold pipe P.

That is, since the pressing force for pressing the outer circumferential surface of the scaffolding pipe P to be coupled varies depending on the position at which the moving bar 600 is inserted into the first insertion part 400, the scaffolding pipe P is firmly fixed.

In addition, a first fastening protrusion 310 and a second fastening protrusion 330 are formed on the inner circumferential surface of the fastening groove 300.

The first fastening protrusion 310 is formed to protrude in a shape corresponding to the outer circumferential surface of the scaffolding pipe P on the inner surface of the fastening groove 300, and is configured to be in surface contact with the outer circumferential surface of the scaffolding pipe P. By improving the binding force between the scaffold pipe (P) and the fastener 200 inserted into the fastening groove 300, it gives an effect of strengthening the structural safety.

That is, preferably, the shape of the first fastening protrusion 310 is not particularly limited, and any shape can be in surface contact with the outer circumferential surface of the scaffolding pipe P, and a plurality of spaces are formed at a predetermined distance.

The second fastening protrusion 330 is formed below the inner circumferential surface of the fastening groove 300, and is formed in a sawtooth shape to prevent the scaffolding pipe P inserted into the fastening groove 300 from being idle. It serves to prevent.

And, as described above, the moving bar 600 is coupled to be movable in the vertical direction in the interior of the first insertion portion 400, the inclined surface 610 is formed on the outer surface of the fastening groove 300 It is formed to press the outer circumferential surface of the combined scaffolding pipe (P), see FIG.

6 is a diagram illustrating a moving bar 600 according to the first embodiment of the present invention.

As shown in FIG. 6, the moving bar 600 includes an inclined surface 610, a locking jaw 630, a fixing groove 650, and a rotating roller (not shown).

First, the inclined surface 610 is formed to be inclined at a predetermined angle on one side of the moving bar 600, to press the outer peripheral surface of the scaffolding pipe (P) coupled to the fastening groove 300, scaffolding pipe (P) ) Can be fixed.

The locking jaw 630 is formed at both ends of the moving bar 600, and includes a first locking jaw 630a and a second locking jaw 630b.

The first catching jaw 630a is formed at an upper portion of the moving bar 600, and protrudes toward the fastening groove 300 to prevent separation of the scaffolding pipe inserted into the fastening groove 300. have.

The second catching jaw 630b is formed below the moving bar 600, and is formed larger than the diameter of the first inserting part 400, so that the moving bar 600 is fixed to release the scaffold pipe. When the lifting movement, the second locking jaw 630 is caught on the lower outer peripheral surface of the fastener 200, the movement bar 600 is prevented from being separated to the fastener 200, at the same time, the moving bar ( It is possible to prevent the occurrence of safety accidents of workers due to the departure of 600).

The fixing groove 650 is formed to be spaced apart from the other side of the moving bar 600 by a predetermined interval, and may fix the insertion position of the moving bar 600 with respect to the first inserting part 400. Will be described later.

At least one rotating roller (not shown) is installed on the outer circumferential surface of the moving bar 600 so as to contact the inner circumferential surface of the first insertion part 400, and is formed to be rotatable in the vertical direction. It has the effect of promoting the convenience of workers by providing a smooth mobility.

This concludes the description of the movement bar 600.

Fastening means 700, as shown in Figure 1, is composed of a bolt 710 and a nut 730, in detail the bolt head and the bolt head seated on the second insertion portion 500 And a bolt 710 having a bolt shaft formed to be inserted into the through hole 110, and a nut 730 fastened to and fixed to an end of the bolt shaft, and formed at one side of the fastener 200.

That is, the bolt head is seated in the second insertion part 500 and fixed to the fastener 200, and the bolt shaft part passes through the through hole 110 to penetrate the scaffold pipe body 100, and the scaffolding As the nut 730 is fastened to the end of the bolt shaft portion passing through the pipe body 100, the fastener 200 may be fixed to the scaffolding pipe body 100.

In other words, the fastening 200 can be easily detached from the scaffolding pipe body 100 while being firmly fastened through the above-described bolting coupling.

In addition, since the coupling position of the fastener 200 on the scaffolding pipe body 100 is changed according to the position of the through hole 110 to which the fastening means 700 is coupled, the operator of the fastening means 700 depends on the working environment. Workability can be improved by adjusting bolting position.

Next, the fixing means 800 is formed on one side of the first inserting portion 400, fixing the moving bar 600 according to the position where the moving bar 600 is inserted into the first inserting portion 400. It is inserted into the groove 650 to fix the insertion position of the moving bar 600, see FIG.

In detail. The fixing means 800 is a spring seating portion 810 formed on one side of the first inserting portion 400, a spring 830 installed on the spring seating portion 810 and the spring 830 Is installed at the end, and comprises a ball bearing 850 is inserted into the fixing groove 650.

That is, the fixing means 800, while inserting the ball bearing 850 into the fixing groove 650, the fastening groove 300 to the moving bar 600 inserted into the first insertion portion 400; By pushing to the side), the moving bar 600 has an effect to be firmly fixed to the outer circumferential surface of the scaffold pipe (P) inserted into the fastening groove 300 to be firmly fixed.

This concludes the description of the first embodiment of the present invention. Hereinafter, the second embodiment of the present invention will be described, which will be described with reference to FIG. 7.

7 is a view showing a fastening device for coupling scaffolding pipe according to a second embodiment of the present invention.

Fastening device for the scaffolding pipe according to the second embodiment of the present invention, the scaffolding pipe body 100, fastener 200, fastening groove 300, the first inserting portion 400, the second inserting portion 500 In addition to the moving bar 600, the fastening means 700, and the fixing means 800, a locking means 900 is further provided.

Hereinafter, a detailed description of the components having the same or similar working effects as those of the first embodiment will be omitted.

As shown in FIG. 7, an insertion hole 130 is further provided below the through-hole 110 of the scaffolding pipe body 100, and the locking means 900 is fastened to be inserted into the insertion hole 130. On one side of 200 is formed to protrude obliquely at an angle.

This means that even when the nut 730 is released from the bolt 710 in a state in which the fastener 200 is coupled to the scaffold pipe body 100, the locking means 900 is inserted into the scaffold pipe body 100. As it is caught by the support there is an effect that the departure of the fastener 200 is prevented.

In addition, preferably, the locking means 900 is hinged to one side of the fastener 200, it may be provided to be rotatable to form an inclination angle of 40 to 60 degrees in the circumferential direction with respect to the central axis.

When the inclination angle is less than 40 degrees, it is difficult to exhibit the effect of preventing the separation of the fastener 200 described above, and when the inclination angle exceeds 60 degrees, the insertion into the insertion hole 130 due to a sharp inclination It is difficult to achieve smoothly.

This concludes the description of the fastening device for the scaffold pipe coupling according to the present invention.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

P: scaffolding pipe
100: scaffolding pipe body
110: through hole
130: insertion hole
200: fastener
210: plate
211: first depression
213: second depression
215: third depression
217: protrusion
219: accommodation home
220: seating part
300: fastening groove
310: first fastening protrusion
330: second fastening protrusion
400: first insertion part
500: second insertion portion
600: moving bar
610: slope
630: jamming jaw
650: fixing groove
700 fastening means
710: Bolt
730: Nut
800: fixing means
810: spring seat
830: spring
850: Ball Bearing
900: locking means

Claims (4)

Scaffolding pipe body formed with a through hole;
One side surface is fixed to the scaffolding pipe body, the first recessed portion formed in the upper and lower recesses on the opposite surfaces, the second recessed portion formed in a shape corresponding to one outer surface of the bolt head and one side of the scaffolding pipe body A fastener to which a pair of plates formed with a third depression formed in a corresponding shape is coupled;
An upper side of the fastener is opened to form a fastening space having a U shape;
A first insertion part vertically penetrated inside the fastener by mutual coupling of the first recesses;
A second insertion part formed in a shape corresponding to an outer surface of the bolt head inside the fastener by mutual coupling of the second recesses;
A seating portion formed on one side of the fastener by a mutual coupling of the third recessed portion to have a shape corresponding to an outer circumferential surface of the scaffolding pipe body and in surface contact with the scaffolding pipe body;
Including a slope formed on one side inclined with a certain strength to press the outer circumferential surface of the scaffolding pipe coupled to the fastening groove, and a fixing groove formed on the other side spaced apart by a predetermined interval and the locking step formed on both ends, the first A moving bar coupled to the inside of the insertion part so as to be movable up and down;
A fastening means including a bolt head seated on the second insertion part and a bolt shaft part formed at one side of the bolt head and inserted into the through hole, and a nut fastened and fixed to an end of the bolt shaft part; And
A spring seating portion formed on one side of the first insertion portion, a spring installed on the spring seating portion, and a ball bearing installed at an end of the spring and inserted into the fixing groove, and formed on one side of the first insertion portion And a fixing means inserted into the fixing groove according to a position at which the moving bar is inserted into the first inserting portion to fix the insertion position of the moving bar.
The method of claim 1,
An insertion hole is further provided below the through hole of the scaffold pipe body.
Fastening apparatus for a scaffolding pipe further comprising a; locking means protruding inclined at a predetermined angle on one side of the fastener so as to be inserted into the insertion hole.
delete The method of claim 1,
The fastening groove,
A plurality of first fastening protrusions protruding in a shape corresponding to the outer circumferential surface of the scaffolding pipe on an inner side thereof and in surface contact with the outer circumferential surface of the scaffolding pipe;
And a second fastening protrusion protruding in a sawtooth shape below the inner circumferential surface to prevent idling of the scaffolding pipe.

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