KR20180046603A - Holding member for scaffold and scaffold using it - Google Patents

Abstract

The present invention relates to a fixture for scaffold formation and a scaffolding cradle for operations using the same. According to the present invention, scaffold configuration is possible through simple installation in a mold, the scaffold can be simplified in structure, the occupied space can be minimized, assembly and disassembly can be expedited and facilitated, and thus construction costs and periods can be reduced. The fixture for scaffold formation according to the present invention includes a support fixing portion installed in an installation target portion; and a pipe connecting portion protruding from the support fixing portion. The pipe connecting portion includes a connecting body protruding from the support fixing portion; a first latching groove including a first insertion groove portion inserted inward into the end portion of the connecting body and a first seating groove portion curvedly extending from the end portion of the first insertion groove portion; and a second latching groove including a second insertion groove portion formed in the connecting body to face the first latching groove and symmetrical to the first insertion groove portion and a second seating groove portion having the same structure as the first seating groove portion and formed in a diverging direction with respect to the first seating groove portion. The scaffolding cradle for operations using the fixture for scaffold formation according to the present invention includes the above-described fixture for scaffold formation; and a connection pipe provided with a pipe body inserted into the pipe connecting portion and a fixing pin installed across the pipe body and inserted into the first latching groove and the second latching groove.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fastener for forming a scaffold,

The present invention relates to a scaffold-forming fixture and a scaffold stand for a work using the scaffold. More specifically, the present invention relates to a scaffolding fixture for scaffolding that can be easily installed on a formwork to constitute a scaffold, simplify and simplify the scaffold structure, The present invention relates to a scaffold for forming scaffolds and a scaffold for a work using the scaffold, which can reduce the construction cost and shorten the construction period because the assembly and disassembly process can be used quickly and easily.

Generally, in order to form a wall of a building or a civil structure, the outer and inner europium foam, which is a type of a form, are installed at a distance of the wall thickness and fixed in a manner not to be detached. The reinforcing bars are disposed in the inner space between the inner and outer Eurofoams forming the wall.

In addition, the outer Eurofoam and the inner Eurofoam are repeatedly stacked and assembled in the height direction according to the height of the wall. Such assembling work is usually performed by a worker climbing up a footboard called 'Uma', and serious safety accidents are frequently caused by falling, falling, or stumbling.

Accordingly, in order to safely perform assembly work of the euro foam, a scaffold as shown in Fig.

The scaffolds are installed in pairs in parallel with the installation direction of the formwork in the longitudinal direction, and a connecting pipe is installed between the holding pipes, fixed with a clamp, horizontally installed with a horizontal pipe, .

Conventional scaffold installation work must be carried out at the construction site of the building or civil structure regardless of the construction size. However, since the supporting pipe, the connecting pipe, the horizontal pipe and the foot plate are connected to each other, As the work takes time, labor costs increase and the construction period increases.

Conventionally, in the installation work of the scaffolding, since the two columns of the holding pipes are spaced apart from the formwork at a predetermined interval, the required amount of the pipes is large, which causes a rise in the construction cost and requires a large floor area when installing the scaffold It is very difficult to apply it to a small site, and the construction site becomes complicated, thereby increasing the risk of a safety accident.

In addition, since conventional scaffolding requires a large amount of user materials and is complicated, it takes a lot of manpower and work time to be disassembled, which increases the construction cost and increases the construction period.

Korean Registered Utility Model Registration No. 20-0394590 "Clamp for Scaffold Coupling" Korean Registered Patent No. 10-1654483 "Scaffolding for building including safety footrest" Korean Registered Utility Model No. 20-04182471 "Scaffolding for construction including safety footrest"

It is an object of the present invention to provide a scaffolding fixture and a scaffolding pedestal for use with the scaffolding structure, which can be easily installed in a formwork to simplify and simplify scaffolding.

It is another object of the present invention to provide a scaffold-forming fixture capable of minimizing an occupied space and capable of quickly and easily using assembly and disassembly processes to reduce construction cost and shorten a construction period, .

In order to achieve the above object, a scaffold-forming fixture according to the present invention is a scaffold-forming fixture comprising: And a pipe connection portion protruding from the support fixture portion, wherein the pipe connection portion includes: a connection body protruding from the support fixture portion; A first latching groove formed by a first insertion groove portion that is recessed inwardly at an end portion of the connection body and a first placement groove portion that is bent to be bent at an end portion of the first insertion groove portion; A second insertion groove formed in the connection body to face the first latching groove and formed in a symmetrical structure with the first insertion groove; a second seat formed in the same structure as the first seating groove, And a second latching groove formed of a groove portion.

The supporting unit may include: a fitting plate body formed to fit into an assembling groove formed in the Euroform; And a fitting hole formed in the fitting plate body.

Preferably, the support fixture unit includes: a holder body formed with a fitting groove to be fitted in a protrusion formed on a Euroform; A first fastener insertion hole formed on one side of the holder body in a direction of the fitting groove; And a second fastener insertion hole formed on the other side of the holder body, the second fastener insertion hole being formed in a symmetrical structure with the first fastener insertion hole.

The first fastening piece insertion hole and the second fastening piece insertion hole may have a circular hole portion into which a fastening piece having a circular cross-sectional structure is inserted, and a second fastening piece insertion hole extending in a direction opposite to the circular hole portion so as to insert a fastening piece having a rectangular cross- , And a " C "-shaped auxiliary hole portion to be formed.

The support fixture unit further includes a reinforcing protrusion protruding from the front surface of the holder body so as to be inserted and fixed into the connection body. The pipe connection unit further includes a reinforcing ring coupled to the connection body so as to be in close contact with the support fixture .

In order to achieve the above object, a footrest holder for a work using a fixture for scaffolding according to the present invention comprises: the scaffold-forming fixture; And a connection pipe having a pipe body fitted to the pipe connection part, and a fixing pin installed across the pipe body and fitted into the first and second engagement grooves.

In addition, the work footrest cradle using the fixture for scaffolding according to the present invention includes: a vertical connection pipe installed in a direction orthogonal to an outer end of the connection pipe; A safety connection pipe coupled to the inside of the vertical connection pipe; And a safety band fitted to the safety belt connection pipe.

Here, the fixed clamp for scaffolding coupled to the vertical connection pipe may be further comprised.

Further, a scaffold-forming clamp may be further coupled to the connection pipe. In this case, the scaffold-forming clamp may include a first clamp coupled to the connection pipe, and a second clamp coupled to the first clamp and connected to a pipe for scaffolding.

According to the scaffold for forming scaffold and the scaffolding stand for use with the scaffold according to the present invention, since scaffolds can be completed by installing a scaffold for scaffolding on a Euroform, assembling a connecting pipe, and installing only a single support pipe, , So that the assembly work can be carried out simply and quickly. As a result, the material cost can be reduced, and the number of assembling processes can be reduced, thereby reducing the construction period and assembly labor cost.

In addition, according to the scaffold for fixing scaffold and the scaffold stand used for the scaffold according to the present invention, it is possible to simplify the scaffold structure and minimize the occupied space, so that it can be easily applied even in a small site, The disassembly process can be performed quickly and easily, and safety can be improved.

1 is a view for explaining a conventional scaffold,
FIG. 2 is a perspective view of a scaffold-forming fixture according to an embodiment of the present invention, FIG.
FIG. 3 is an exploded perspective view of a scaffold-forming fixture according to an embodiment of the present invention, FIG.
4A is a perspective view illustrating a modified example of a scaffold-forming fixture according to an embodiment of the present invention,
4B is an exploded perspective view illustrating a modified example of the scaffold-forming fixture according to an embodiment of the present invention,
FIG. 5 is an exploded perspective view illustrating a scaffolding stand for a work using a scaffold-forming fixture according to an embodiment of the present invention;
FIG. 6 is a perspective view illustrating an assembled state of a work footrest using a fixture for scaffolding according to an embodiment of the present invention. FIG.
FIG. 7 is a view for explaining the operation of a footrest cradle using a fixture for scaffolding according to an embodiment of the present invention,
8 is an exploded perspective view showing a scaffolding stand for a work using a scaffolding fixture according to another embodiment of the present invention;
FIG. 9 is a perspective view illustrating an assembled state of a work footrest using a fixture for scaffolding according to another embodiment of the present invention. FIG.
10 is a view for explaining an operation of a work footrest using a fixing device for scaffolding according to another embodiment of the present invention.

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

FIG. 2 is a perspective view showing a scaffolding fixture according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view illustrating a scaffolding fixture according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the scaffold-forming fixture 1 according to an embodiment of the present invention is configured to be easily installed in a formwork to constitute a scaffold, as specifically described below, And a pipe connection portion 12 protruding from the support fixture portion 11. As shown in Fig.

The support fixture unit 11 includes a first fastener insertion hole 112 and a second fastener insertion hole 112. The first fastener insertion hole 112 and the second fastener insertion hole 112 are formed in a holder body 111 having a fitting groove 114 fitted in a projection f1 formed in a flow path f, (113) is formed, and a rectangular metal plate member is formed by bending in a substantially "C" shape.

The first fastening piece insertion hole 112 is formed in one side of the holder body 111 in the direction of the internal fitting groove and the second fastening piece insertion hole 113 is formed in the other side of the holder body 111, And is perforated in a symmetrical structure with the single-piece insertion hole 112.

At this time, the first fastening piece insertion hole 112 and the second fastening piece insertion hole 113 are characterized in that they can be used by inserting fasteners of various shapes.

More specifically, the first fastening piece insertion hole 112 and the second fastening piece insertion hole 113 have a circular cross-sectional structure so that a round bar or a fastening piece (not shown) having a small diameter pipe shape can be inserted Like shape such as a wedge (w) is inserted into the circular hole portion 112a and the auxiliary hole portion 112a which is formed in the " C "shape so as to insert a fastener having a rectangular cross- (112b, 113b) are formed.

The supporting fixture part 11 is further formed with a reinforcing protrusion part 115 protruding from the front surface of the holder body so as to be inserted into and fixed to the inside of the connection body 121 for rigid connection with the pipe connection part 112.

The pipe connection portion 12 is a component that is joined to the support fixture portion 11 by welding or the like so as to protrude from the support fixture portion 11. The pipe connection portion 12 has a first engagement groove 122 on a cylindrical connection body 121 protruding from the support fixture portion 11, And the second latching groove 123 are formed.

The first latching groove 122 has a first insertion groove 122a which is recessed inward at an end of the connecting body 121 and a first seating groove 122b which is bent to extend from the end of the first insertion groove 122a. ), And is formed into a substantially "B" -shaped groove.

The second latching groove 123 is formed in the connecting body 121 so as to face the first latching groove 122 and has a second insertion groove 123a formed symmetrically with the first insertion groove 122a, And a second seating groove 123b formed in the same structure as the seating groove 122b and the second seating groove 123b is formed in a direction in which the forming direction is offset with respect to the first seating groove 122b.

The pipe connection portion 12 is further coupled to the connection body 121 with a reinforcement ring 125. The reinforcing ring 125 is in close contact with the support fixture portion 11 and functions to more firmly maintain the state in which the pipe connection portion 12 is joined to the support portion 11 and to prevent deformation of the connection body 121 .

FIG. 4A is a perspective view illustrating a modified example of a scaffold-forming fixture according to an embodiment of the present invention, and FIG. 4B is an exploded perspective view illustrating a modified example of the scaffold-forming fixture according to an embodiment of the present invention.

4A and 4B, the scaffold-forming fixture 1 'according to the modified embodiment of the present invention includes a supporting and fixing part 15 installed on a mounting part such as a Euroform, And the pipe support portion 15 is formed in the shape of a fitting plate so as to be inserted and fixed in the fitting groove f3 of the euro foam f.

More specifically, the support fixture unit 15 is formed of a fitting plate body 151 formed of a metal plate having a substantially rectangular shape and a fitting hole 152 formed in the fitting plate body 151.

The insertion hole 152 is formed in the insertion hole 152 formed in the side surface of the protrusion f1 in the state where the fitting plate body 151 is inserted into the fitting groove f3 formed at the connection portion of the protrusion f1 of the euro foam f, such as a wedge w, which is inserted through the through hole f4.

A joint protrusion 153 is formed in the support fixture 15 so as to be firmly fixed to the inner circumferential surface of the pipe connection part 12 in a process of being inserted into the pipe connection part 12 and fixed in a welding manner.

The pipe connecting portion 12 is formed in the same structure as the above embodiment and includes a connecting body 121 and a first engaging groove 121 formed to face the end portion of the connecting body 121, A second engaging groove 122 and a second engaging groove 123 are formed.

According to the above-described scaffolding fixture 1 'according to the modified embodiment of the present invention, since the support fixture part 15 is inserted into the assembly groove f3 formed in the projecting part f1 of the euro foam f, Since the scaffold can be formed by a simple method of installing the scaffold-forming fixture 1 'on the Euroform widely used in the construction site of the building, there is an advantage that convenience for use is improved.

FIG. 5 is an exploded perspective view showing a scaffolding stand for a work using a scaffold-forming fixture according to an embodiment of the present invention. The enlarged portion is an enlarged view of a front portion of a designated portion. 6 is a perspective view illustrating an assembled state of a work footrest using a fixture for scaffolding according to an embodiment of the present invention.

5 and 6, a scaffold stand for work using a scaffold-forming fixture according to an embodiment of the present invention includes the scaffold-forming fixture (1, 1 ') and the scaffold-forming fixture (1) And a connecting pipe 2 to be joined. In this case, the scaffold-forming fixture shown in FIG. 4A can be applied, but the following description will be made on the basis of the example using the scaffold-forming fixture 1 shown in FIG.

The connecting pipe 2 includes a pipe body 21 fitted to the pipe connecting portion 12 of the scaffolding fixture 1 and a fixing pin 22 installed across the inner hole at an edge portion of the pipe body 21 ). At this time, the fixing pin 22 is inserted into and fixed to the pin insertion hole 211 formed in the pipe, and is inserted into the first and second engagement grooves 122 and 123 of the pipe connection portion 12 .

The scaffold-forming clamp 3 is connected to the connection pipe 2. The scaffold-forming clamp 3 is formed similarly to and similar to the scaffold-forming clamp widely used for assembling a scaffold. The scaffold-forming clamp 3 includes a clamp main body 31, a clamp lid rotatably connected to the clamp main body 31, A fastening member 33 for fastening the clamp lid 32 to the clamp main body 31,

On the other hand, the scaffold-forming clamp 3 includes a first clamp 3a coupled to the connecting pipe 2, a second clamp 2b coupled to the first clamp 3a and connected to a pipe for scaffolding, So as to be able to connect a holding pipe (p) or a horizontal pipe forming a scaffold.

7 is a view for explaining the operation of a footrest cradle using a fixture for scaffolding according to an embodiment of the present invention.

3, the supporting stand 11 and the pipe connecting portion 12 are manufactured by using a scaffolding fixture according to an embodiment of the present invention. As shown in FIG. 2, Thereby forming the scaffold-forming fixture 1. [0035]

5, the insertion hole f4 of the protrusion f1 and the protrusion f2 of the protrusion f1 are inserted into the protrusion f1 of the flow path foam f as shown in Fig. When the wedge (w) is inserted in such a state that the first fastening piece insertion hole 112 and the second fastening piece insertion hole 113 are aligned on the same horizontal line, the scaffolding fastener 1 And fixed to the Euroform (f).

When the connecting pipe 2 is inserted into the pipe connecting portion 12 and the rotating operation is performed, the fixing pin 22 is inserted into the first and second engaging grooves 122, And is fixed while being caught by one of the seating groove portions 122b and 123b.

6, the first clamp 3a is installed on the connecting pipe 2, the second clamp 2b is fastened to the first clamp 3a, and then the holding pipe for forming the scaffold (p) is assembled to the second clamp 2b.

7, when the assembling process of the scaffold-forming fixture 1, the connecting pipe 2, the scaffold-forming clamp 3, and the holding pipe p is repeatedly performed as described above, The skeleton is assembled. In this state, if a horizontal pipe (not shown) and a foot plate (not shown) are installed on the connecting pipe 2 and a safety bar (s) is installed, the scaffold can be completed. The worker can climb up a scaffold and build up a euro form, and can perform various tasks necessary for construction of a building.

As described above, according to the pedestal holder for scaffolding according to the embodiment of the present invention, when two pedestrian pipes p are arranged to face each other along the installation direction of the euroform when assembling the scaffold, Since the scaffold can be completed by installing only the single support pipe p after installing the scaffolding fixture 1 in the euro form f and assembling the connection pipe 2 instead of connecting the pipes together, There are various advantages such as.

First, since the connecting pipe 2 is fixed to the scaffold-forming fixture 1 fixed to the Euroform, the supporting pipe p provided at the portion contacting with the conventional Euroform can be omitted, the material cost can be remarkably reduced, The construction period can be shortened and the assembly labor cost can be remarkably reduced. Since the single support pipe is already assembled to the connection pipe 2 fixed to the euro form, it is not necessary to hold both support pipes so as to prevent conduction as in the prior art, so that an operator can assemble and disassemble the scaffold have.

Also, owing to the omission of the support pipe (p) provided at the portion contacting with the Euroform, the scaffold can be installed even if the floor area for assembling the scaffold is narrow, so that the applicability in a narrow field with the space limitation is excellent and the construction site is simplified There is an advantage of reducing the risk of safety accidents.

In addition, according to the pedestal holder for scaffolding using the scaffold-forming fixture according to an embodiment of the present invention, it is possible to quickly and simply perform the scaffolding with a simple structure and simple scaffold disassembly, thereby reducing the construction cost , The construction period can be shortened.

In addition, according to the pedestal holder for scaffolding using the scaffold-forming fixture according to an embodiment of the present invention, when the scaffold-forming fixture 1, the connecting pipe 2, and the holding pipe p are installed, Therefore, it is possible to omit the support member for maintaining the upright state of the euroform, so that the construction work of the euroform can be performed simply and safely.

Hereinafter, other embodiments according to the present invention will be described, and a description of components similar to those of the above-described embodiments will be omitted, and components having differences will be mainly described. In addition, in the following other embodiments, any of the components shown in the embodiments may be selectively applied to each other, so that detailed description thereof will be omitted.

FIG. 8 is an exploded perspective view illustrating a scaffolding stand for scaffolding using a scaffolding fixture according to another embodiment of the present invention. FIG. 9 is a perspective view of a scaffolding stand for scaffolding according to another embodiment of the present invention, Fig.

8 and 9, the scaffold stand for work using the scaffold-forming fixture according to another embodiment of the present invention includes the above scaffold-forming fixture 1, a connecting pipe (not shown) coupled to the scaffold- A vertical connection pipe 4 installed in a direction orthogonal to the outer end of the connection pipe 2, a safety connection pipe 5 connected inside the vertical connection pipe 4, and a safety connection pipe 5 And a safety table 6 sandwiched from above.

The vertical connection pipe 4 and the safety connection pipe 5 are both formed by a square pipe. The safety connection pipe 5 is inserted into the vertical connection pipe 4 and is vertically Is formed as a square pipe having a smaller size than the connecting pipe (5).

The safety band connecting pipe 5 is fastened with a bolt 51 as a stopper member for preventing the safety band 6 to be inserted from falling downward.

The safety belt 6 is formed of a square pipe and is formed of a square pipe having a small size so as to be inserted into the safety belt connecting pipe 5 and is provided with a loop 61 in which a safety rope r, ).

Meanwhile, the work footrest stand using the fixture for scaffolding according to another embodiment of the present invention comprises a fixed clamp 7 for scaffolding coupled to the vertically connecting pipe 4.

The scaffold-forming fixed clamp 7 is connected to the vertical connecting pipe 4 by a bolt fastening method or a welding type and is similar to a conventional clamp used for assembling a scaffold in that the clamp main body 71 and the clamp main body A clamping lid 72 rotatably connected to the clamping lid 71, and a clamping member 73 for fixing the clamping lid 72 to the clamping body.

10 is a view for explaining an operation of a work footrest using a fixing device for scaffolding according to another embodiment of the present invention.

Referring to FIG. 10, the scaffolding stand for work using the scaffold-forming fixture according to another embodiment of the present invention includes a support fixture part 15 of the assembled scaffold-forming fixture 1, as in the above- f and the connecting pipe 2 to which the vertical connecting pipe 4 is coupled is inserted into the pipe connecting part 12 and the rotating operation is performed, the fixing pin 22 is inserted into the first engaging groove 122 and the And is fixed in a state of being engaged with the first and second first seating grooves 122b, 123b of the second locking groove 123.

9, the holding pipe p is assembled to the fixing clamp 7, and the safety table 6 is assembled to the safety connecting pipe 5 coupled to the vertical connecting pipe 4. Then, as shown in Fig.

When the assembling process of the scaffold-forming fixture 1, the connecting pipe 2, the safety table 6, the fixing clamp 7 and the holding pipe p is repeatedly performed as shown in FIG. 10, The basic skeleton of the scaffold is completed. In this state, if a horizontal pipe (not shown) and a foot plate (not shown) are installed in the connecting pipe 2, the scaffold can be completed.

Although the present invention has been described in connection with what is presently considered to be preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

The terms used in the above embodiments are used only to describe specific embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1, 1 ': a scaffold-forming fixture 11, 15:
111: holder body 112: first fastening insert hole
113: second fastening piece insertion hole 12: pipe connection portion
121: connecting body 122: first engaging groove
123: second latching groove 151: fitting plate body
152: insertion ball 2: connecting pipe
3: Clamp 4: Vertical connection pipe
5: Safety belt connection pipe 6: Safety belt
7: Fixing clamp

Claims (10)

In the scaffold-forming fixture,
A support mechanism installed on the mounting part; And
And a pipe connection portion protruding from the support fixture portion,
The pipe connecting portion
A connection body protruding from the support fixture;
A first latching groove formed by a first insertion groove portion that is recessed inwardly at an end portion of the connection body and a first placement groove portion that is bent to be bent at an end portion of the first insertion groove portion; And
A second insertion groove formed in the connection body so as to face the first latching groove and formed in a symmetrical structure with the first insertion groove and a second insertion groove formed in the same structure as the first seating groove, And a second latching groove formed of a first portion and a second portion.
The method according to claim 1,
The supporting device comprises:
A fitting plate body formed to fit into an assembly groove formed in the Euroform; And
And a fitting hole formed in the fitting plate body.
The method according to claim 1,
The supporting device comprises:
A holder body formed with a fitting groove to be fitted in a projection formed on the Euroform;
A first fastener insertion hole formed on one side of the holder body in a direction of the fitting groove; And
And a second fastening piece insertion hole formed on the other side of the holder body, the second fastening piece insertion hole being formed to have a symmetrical structure with the first fastening piece insertion hole.
The method of claim 3,
The first fastening piece insertion hole and the second fastening piece insertion hole may have a circular hole portion into which a fastening piece having a circular cross-sectional structure is inserted, and a second fastening piece insertion hole extending and formed to face the circular hole portion so as to insert a fastening piece having a rectangular cross- Shaped auxiliary hole portion having a " C "shape.
The method of claim 3,
The supporting unit may further include a reinforcing protrusion protruding from the front surface of the holder body so as to be inserted and fixed into the connecting body,
Wherein the pipe connection portion further includes a reinforcing ring coupled to the connection body so as to be in close contact with the support fixture portion.
The scaffold-forming fixture according to any one of claims 1 to 5,
And a connecting pipe having a pipe body fitted to the pipe connecting portion, and a fixing pin installed across the pipe body and fitted in the first and second latching grooves. Scaffolding stand for use.
The method according to claim 6,
A vertical connecting pipe installed in a direction orthogonal to an outer end of the connecting pipe;
A safety connection pipe coupled to the inside of the vertical connection pipe; And
And a safety band fitted to the safety band connecting pipe.
8. The method of claim 7,
Further comprising a fixed clamp for scaffolding coupled to the vertical connecting pipe. ≪ Desc / Clms Page number 19 >
The method according to claim 6,
And a scaffold-forming clamp coupled to the connection pipe.
10. The method of claim 9,
Wherein the scaffold-forming clamp includes a first clamp coupled to the connection pipe, and a second clamp coupled to the first clamp and connected to a pipe for scaffold formation, holder.

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