KR101933828B1 - Constructing method of vertical pipe and scaffold used therein - Google Patents

Abstract

Disclosed is a constructing method of a vertical pipe and a worktable used therefor. The constructing method of a vertical pipe includes the steps of: (a) locating a pipe in a vertical direction to be adjacent to an outer wall of a building; (b) combining a bracket with the pipe and fixing the bracket to the outer wall of the building; (c) combining a worktable to the pipe; and (d) welding the pipe by a worker who is located on a worktable. The worktable used for the constructing method of a vertical pipe according to an embodiment of the present invention which is installed on a pipe vertically located adjacent to an outer wall of a building includes: a seating part formed in a plate shape and located to horizontally cross the pipe; a first joining part extended from an edge of one side of the seating part, joined to the pipe and supported on a bracket; a second joining part extended and inclined from the bottom surface of the seating part, located to correspond to the first joining part, and joined to the pipe; a support part formed in a plate shape and extended toward an upper side from an edge of the other side of the seating part; and a holding part connected to a lower portion of the second joining part and located to cross the second joining part. Therefore, the present invention can stably construct the pipe on the building in a vertical direction.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for constructing a granular piping,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a granular piping construction method and a worktable used therein, and more particularly, to a granular piping construction method and a workbench used for stably installing a piping in a building using granular piping.

Buildings with multi-layer structures, such as buildings, apartments, villas, and townhouses, may be constructed with granular piping. The granular piping can be positioned vertically in a multi-story building to provide heating, water supply, drainage, etc., and can be used to connect each floor and provide heating, water supply, drainage, etc. to each floor.

For example, in order to construct a granular pipeline, reinforcing bars and formworks are installed when a floor is constructed in a building having a reinforced concrete structure, through sleeves for granular piping are installed, and cement is embedded to fill the penetrating sleeves . Here, if the cement poured into the formwork flows into the penetrating sleeve, the penetrating sleeve can be clogged. As a result, a lid is provided at the top and bottom of the penetrating sleeve, and the lid can be removed from the penetrating sleeve if the cement is hardened. Here, by installing the pipe so as to pass through the penetrating sleeve, the granular pipe can be installed in the building.

On the other hand, the granular piping can be constructed without using the penetrating sleeve as described above. The granulation piping can be installed directly on the outer wall of the building by standing vertically. In order for such granular piping to be secured to the outer wall of the building, the operator must be located on the outer wall of the building. Further, the operator performs welding work to connect the plurality of pipes from the outer wall of the building to each other to form a granular pipe, or connect the granular pipe to the pipe corresponding to each layer. As a result, the operator performs the welding work in danger of falling, and the spark due to the welding work may cause a fire.

A method of constructing a granular piping according to the technical idea of the present invention and a technical task to be accomplished by the present invention is to provide a granular piping construction method and a work stand to be used for safely constructing a granular piping on an outer wall of a building.

A method of constructing a granular piping according to the technical idea of the present invention and a technical problem to be achieved by the work platform used therein is to provide a granular piping construction method and a worktable to be used for providing an improved stability to an operator.

The method of constructing the granular piping according to the technical idea of the present invention and the technical task to be performed by the work platform used therein are not limited to the above-mentioned problems, and another problem that is not mentioned is clearly understood from the following description .

According to an aspect of the present invention, there is provided a method of constructing a granular piping, the method comprising: (a) placing a pipe in a vertical direction adjacent to an outer wall of a building; (b) the bracket is coupled to the pipe and secured to the outer wall of the building; (c) the workbench is coupled to the piping; And (d) welding the pipe by an operator located on the workbench.

The step (c) includes the steps of: (c1) connecting the first coupling part of the workbench to the pipe and being supported by the brackets so that the seating part of the workbench is positioned in the horizontal direction and the support part of the workbench is positioned ; And (c2) a second coupling portion of the workbench is coupled to the piping and is positioned below the first coupling portion, wherein (d) includes the steps of: (d1) inserting the safety collar of the operator's harness into the coupling ring ; And (d2) the hip of the operator is positioned on the upper surface of the seat portion so that the back portion faces the support portion.

The step (c) further comprises the steps of: (c3) placing the cut-off base portion in the vertical direction by joining the shut-off base portion to the pipe between the first joint portion and the portion to be welded in the pipe to be horizontally positioned, A surrounding step; And (c4) inserting and passing through the fixing rings while winding the pipe while the fixing wire is connected to one of the fixing rings, and fastening the fixing wire to the fixing ring by the fixing ring, (d3) The operator further observes the inside of the cut-off body portion through the visual field, and after opening the cut-in opening using the opening and closing part, the hand is inserted into the cut-off body through the cut-in opening to weld the pipe .

In addition, the work table used in the granular pipe construction method according to one embodiment of the present invention is formed in a plate shape, which is installed in a pipe positioned vertically adjacent to an outer wall of a building, A seating portion positioned so as to intersect with the pipe in the direction of the pipe; A first engaging portion extending from one side edge of the seat portion and being coupled to the pipe and supported by the bracket; A second engaging portion extending from the lower surface of the seat portion and tilted to be positioned corresponding to the first engaging portion and coupled to the pipe; A support portion formed in a plate shape and extending upward from the other side edge of the seat portion; And a receiving portion connected to a lower portion of the second coupling portion and positioned to intersect the second coupling portion.

In addition, the work table may further include a blocking portion that is formed in a plate shape, and is coupled to the pipe between the first coupling portion and the portion to be welded in the pipe, and positioned in the horizontal direction.

Further, when the hip of the operator is positioned on the upper surface of the seat portion, the back portion of the operator can be supported on the support portion and the foot of the operator can be positioned on the support portion.

In addition, the workbench may further include a blocking portion located on the upper side of the first coupling portion and coupled to the pipe to surround the portion to be welded in the pipe.

The blocking portion may include a blocking base portion formed in a plate shape, the blocking base portion being coupled to the pipe between the first coupling portion and the portion to be welded in the pipe to be positioned in the horizontal direction; A blocking body portion extending in a vertical direction from a top surface edge of the cut-off base portion and surrounding the portion to be welded in the piping, the blocking body portion being formed around the piping, An opening / closing part installed in the blocking body part to correspond to the charging opening and opening / closing the charging opening; A viewing portion formed of a transparent material, the viewing portion being formed to be positioned on an upper side between the charging openings in the blocking body portion; And a blocking fixture positioned above the portion to be welded in the pipe while connecting the piping and the inner surface of the cut-off body portion.

Further, the blocking fixture includes a plurality of fixing rings spaced apart from each other along the periphery of the pipe at an upper inner surface of the blocking body portion; A fixed wire having a first end connected to one of the fixed rings and having a wire elastic portion adjacent to the second end; And a fastening ring connected to a second end of the stationary wire, wherein the fastening wire passes through the fastening rings and the fastening wire is tensioned on the fastening wire so that the fastening ring has a restoring force to retract the wire- .

The method of constructing the granular piping according to the embodiments of the present invention and the worktable used therefor have the following effects.

(1) Make sure that the granular piping can be safely installed on the outside wall of the building.

(2) Provide the operator with an improved sense of stability.

However, the method of constructing a granular piping according to an embodiment of the present invention and the effect that can be achieved by the work platform used therein are not limited to those described above, and other effects not mentioned can be obtained from the following description As will be appreciated by those skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited herein.
1 is a flowchart showing a granular piping construction method according to an embodiment of the present invention.
2 is a photograph showing a state in which a pipe is vertically positioned in a granular pipe construction method according to an embodiment of the present invention.
3 is a photograph showing a state in which a pipe is fixed by a bracket in a granular pipe construction method according to an embodiment of the present invention.
4 is a photograph showing a pipe welded in a granular pipe construction method according to an embodiment of the present invention.
5 is a perspective view showing a work table used in a granular pipe construction method according to an embodiment of the present invention.
6 is a perspective view showing a worker placed on a workbench used in a granular pipe construction method according to an embodiment of the present invention.
FIG. 7 is a perspective view showing an operator positioned on another workbench used in a granular pipe construction method according to an embodiment of the present invention; FIG.
8 is a plan view showing a cut-off portion of another work platform used in a granular pipe construction method according to an embodiment of the present invention.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the intention is not to limit the invention to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

In addition, an element represented by '~' in the present specification may be a structure in which two or more elements are combined into one element, or one element may be divided into two or more functions according to a finer function. In addition, each of the components to be described below may additionally perform some or all of the functions of the other components in addition to the main functions of the component itself, and some of the main functions And may be performed entirely by components.

Hereinafter, exemplary embodiments of the present invention will be described in detail.

FIG. 1 is a flow chart showing a granular piping construction method according to an embodiment of the present invention. FIG. 2 is a photograph showing a piping installed in a vertical direction in a granular piping construction method according to an embodiment of the present invention And FIG. 3 is a photograph showing a state in which a pipe is fixed by a bracket in a granular pipe construction method according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view of a granular pipe construction method according to an embodiment of the present invention, FIG. 5 is a perspective view illustrating a work table 100 used in a granular pipe construction method according to an embodiment of the present invention. FIG. 6 is a perspective view of a granular pipe construction according to an embodiment of the present invention. 1 is a perspective view showing a state where an operator is placed on a workbench 100 used in the method.

As shown in FIGS. 1 to 6, the granular piping construction method according to an embodiment of the present invention allows piping 10 to be installed on the outer wall of the building 1 in a vertical direction. Here, the plurality of pipelines 10 are connected to each other, so that they can provide functions such as heating, water supply, and drainage to the building 1, and in some cases, As shown in FIG.

First, a step S101 is performed in which the piping 10 is positioned so as to be adjacent to the outer wall of the building 1 in the vertical direction. A plurality of pipes 10 are connected to each other by using the connecting member 11 so that the pipe 10 can be positioned to correspond to the height of the building 1 in step S101. Further, the piping 10 may be positioned vertically after being connected to each other on the ground, or may be connected to each other with each being positioned in a vertical direction. The length of the pipe 10 can be selected in consideration of the height of the building 1.

In addition, the step S101 may be carried out by a positive central portion and a tension portion which are in the form of a winch.

The central part is located on the roof of the building, and the rope is wrapped around it. Both ends of the rope can be loosened, and the ropes in the middle can be connected to one end of the pipe. In other words, the double rope keeps the piping connected to both central parts.

The tension part is located on the ground and the tension rope is wound. The tensioning part can be connected to the two-way rope by releasing the tensioning rope. That is, the tension rope keeps the tension rope connected to the main rope. Here, the tensioning portion winds or unwinds the tension rope to provide a constant tension to the tension rope.

When the both central portions close the two ropes, the piping is positioned so as to be adjacent to the outer wall of the building 1 gradually while being vertically positioned while being moved upward. Here, since the tensile section provides a constant tensile force to the tensile rope, the tensile rope can prevent the double rope and the shaking of the pipe 10 connected thereto.

Next, a step S102 is performed in which the bracket 20 is coupled to the piping 10 and installed on the outer wall of the building 1. Fig. In step S102, the bracket 20 can be installed on the outer wall of the building 1 while enclosing a part of the pipe 10 along the circumferential direction of the pipe 10. Here, the bracket 20 is fixed to the outer wall of the building 1, and the pipe 10 can be maintained in a state of being positioned so as to be adjacent to the outer wall of the building 1 in the vertical direction. Further, it is preferable that the bracket 20 is positioned below the connecting member 11 connecting the pipe 10.

Subsequently, a step S103 is performed in which the workbench 100 is coupled to the pipe 10. Here, the workbench 100 can be used for an operator to be placed on the outer wall of the building 1, and includes a seat portion 101, a first engagement portion 102, a second engagement portion 103, a support portion 104 And a receiving part 105. [

The seat portion 101 is formed in a plate shape and is positioned so as to intersect with the pipe 10. Here, the seat portion 101 is positioned in the horizontal direction.

The first engaging portion 102 extends from one side edge of the seat portion 101 and is coupled to the pipe 10 and supported by the bracket 20. Here, the first engaging part 102 is held in a form of wrapping a part of the pipe 10 along the circumferential direction of the pipe 10.

The second engaging portion 103 extends from the lower surface of the seating portion 101 and is inclined and positioned to correspond to the first engaging portion 102. The second coupling portion 103 extends toward the outer wall of the building 1 in a state where the first coupling portion 102 is coupled to the piping 10. This allows the second coupling portion 10 to be coupled to the piping 10 while the first coupling portion 102 is coupled to the piping 10. Further, when a load is applied to the seat portion 101, the first and second engagement portions 102 and 103 can be mutually combined to distribute the load.

The support portion 104 is formed in a plate shape and extends upward from the other side edge of the seat portion 101.

The receiving portion 105 is connected to the lower portion of the second engaging portion 103 and is positioned to intersect with the second engaging portion 103.

The worktable 100 may be coupled to the pipe 10 by coupling the first and second coupling portions 102 and 103 to the pipe 10. The support portion 104 is positioned so as to face the pipe 10 with the seat portion 101 therebetween. The support portion 104 is positioned in the horizontal direction adjacent to the pipe 10.

The worker places the hips on the upper surface of the seat portion 101 and positions the back portion to face the support portion 104 while the work table 100 is coupled to the piping 10, Respectively. This allows the operator to be positioned in the workbench 100 to face the outer wall of the building 1 and the pipe 10, and in particular, the feet can feel a sense of security by being placed on the receiving portion 105.

Meanwhile, the work platform 100 may further include a blocking unit 106.

The blocking portion 106 is formed in a plate shape and is coupled to the pipe 10 between the first engaging portion 102 and the connecting member 11 and positioned in the horizontal direction while intersecting the building 1.

Subsequently, a step S104 in which the pipe 10 is welded is performed. In step S104, the pipes 10 are welded to each other and connected to each other. Here, the worker is placed on the workbench 100. In particular, a worker wears a harness 200 and a safety collar 201 is connected to the harness 200. Before the worker is placed on the workbench 100, the safety collar 201 is fastened to the connecting loop 1a provided on the outer wall of the building 1. [ Thus, the worker may be connected to the outer wall of the building 1 in a state where the worker is located on the workbench 100. Here, the worker can weld the pipe 10 located in the workbench 100, but can securely weld the pipe 10 without collapsing from the outer wall of the building 1.

The above-described step S104 may be used for repairing a damaged portion of the pipe 10, and may be used to connect the pipes 10 to each other without the connecting member 11. [

On the other hand, in step S104, a spark due to the welding can be guided toward the blocking portion 106 of the work bench 100. That is, the blocking portion 106 can prevent sparks due to welding, thereby preventing the risk of fire that may occur due to spark scattering.

The granular pipe construction method as described above can maintain the pipe 10 connected to the building 1 in a state where the pipe 10 is positioned adjacent to the outer wall of the building 1 in a vertical direction. Here, the operator can connect the safety ring 201 of the harness 200, which is located in the work platform 100 and worn, to the connection ring 1a provided on the outer wall of the building 1, The pipe 10 can be welded and connected. Sparks that may be generated in welding may be blocked by the blocking portion 106 of the work table 100 and may not be scattered. Therefore, the granular pipe construction method of the present embodiment can be safely performed without the risk of a safety accident.

FIG. 7 is a perspective view showing a worker placed on another workbench 300 used in a granular pipe construction method according to an embodiment of the present invention, FIG. 8 is a perspective view illustrating a granular pipe construction method according to an embodiment of the present invention And the blocking portion 306 of the other work platform 300 used in the first embodiment.

As shown in FIGS. 7 and 8, in the granular pipe construction method of the present embodiment, other work platforms 300 can be used in place of the work platform 100. The other workbench 300 may include a seating portion 301, a first engaging portion 302, a second engaging portion 303, a supporting portion 304, a receiving portion 305 and a blocking portion 306. Here, the seating part 301, the first engaging part 302, the second engaging part 303, the supporting part 304, and the receiving part 305 are disposed on the seating part 101 of the work table 100, The second coupling portion 103, the support portion 104, and the receiving portion 105, the detailed description thereof will be omitted. On the other hand, the blocking portion 306 has a configuration different from that of the blocking portion 106 of the first embodiment. Accordingly, the other workbench 300 will be described with reference to the blocking unit 306 as a center.

The blocking portion 306 is located on the upper side of the first engaging portion 302 and is coupled to the pipe 10 so as to surround the connecting member 11. Here, the blocking portion 306 may be spaced apart from the connecting member 11, and a predetermined space may be formed between the blocking portion 306 and the pipe 10.

The blocking portion 306 may include a blocking base portion 361, a blocking body portion 363, an opening and closing portion 365, a viewing portion 367, and a blocking portion 369.

The blocking base portion 361 has a plate shape and is coupled to the pipe 10 between the first engaging portion 302 and the connecting member 11 and positioned in the horizontal direction.

The blocking body portion 363 extends in the vertical direction from the upper surface edge of the blocking base portion 361. Here, the blocking body portion 363 is positioned around the pipe 10 while surrounding the connecting member 11. The blocking base portion 361 forms a lower surface in a predetermined space between the blocking portion 306 and the pipe 10, the blocking body portion 363 forms a side surface, and only the upper surface is opened.

In addition, a closing opening 306a is formed on both sides of the lower portion of the blocking body portion 363, respectively. The worker's hand can be inserted into the blocking body portion 363 through the charging opening 306a and brought into contact with the piping 10 while the worker is positioned in the other workbench 300. [

The opening and closing part 365 may be installed in the blocking body part 363 to correspond to the charging opening 306a and may open and close the charging opening 306a. That is, the closing opening 306a is kept closed by the opening / closing part 365, and can be opened by the opening / closing part 365 to insert the operator's hand.

The visual field portion 367 is made of a transparent material and is formed to be positioned on the upper side between the closing openings 306a in the blocking body portion 363. [ The worker can observe the inside of the blocking body portion 363 including the pipe 10 and the connecting member 11 through the visual field portion 367 while the worker is positioned on the workbench 300. [

The blocking portion 369 is positioned on the upper side of the connecting member 11 while connecting the inner surface of the blocking body 365 with the pipe 10. The blocking body portion 365 can be held around the pipe 10 while surrounding the connecting member 11 by the blocking fixing portion 369. [ In addition, the blocking fixture 369 may include fixed hooks 369a, a fixed wire 369b, and a locking hook 369c.

The fixing rings 369a are formed of a plurality and are positioned to be spaced apart from each other along the periphery of the pipe 10 at the upper inner surface of the blocking body portion 363.

The fixing wire 369b is connected to one of the fixing rings 369a. Here, the first end of the fixing wire 369b is connected to the fixing ring 369a, which is adjacent to the building 1, at one side of the blocking body portion 363. The fixing wire 369b passes through the fixing rings 369a while the pipe 10 is wound.

On the other hand, a wire elastic portion 369b 'may be formed on the fixed wire 369b so as to be adjacent to the second end of the fixed wire 369b. When a tensile force is applied to the fixing wire 369b, the wire elastic portion 369b 'can be stretched. Further, when the tensile force applied to the fixed wire 369b is removed, the wire elastic portion 369b 'is contracted by the restoring force.

The fastening ring 369c is connected to the second end of the fixed wire 369b. With the fixing wire 369b wound around the pipe 10 and passing through the fixing rings 369a, the fixing ring 369c is inserted into the fixing ring 369a and fastened. Here, the fastening ring 369a to which the fastening ring 369c is fastened may be a fastening ring 369a adjacent to the building 1 on the other side of the blocking body portion 363. [

Further, in a state where the fastening ring 369c is fastened to the fixing ring 369a, a tensile force is applied to the fixing wire 369b, and the wire elastic portion 369b 'is stretched to have a restoring force. The fixing wire 369b can be brought into close contact with the pipe 10 while the pipe 10 is wound and the blocking body 363 can be positioned around the pipe 10 while surrounding the connecting member 11 can do.

When the other workbench 300 is coupled to the piping 10, due to the configuration of the blocking portion 306 as described above, the blocking base portion 361 is provided between the first engaging portion 302 and the connecting member 11 And may be horizontally coupled to the piping 10 so as to surround the connecting member 11 by vertically positioning the blocking body portion 363. Here, in the blocking fixture 369, the fixed wire 369b is connected to one of the fixed hooks 369a at the first end, inserted into the fixing hooks 369a while passing through the pipe 10, A fastening ring 369c connected to the second end of the fixed wire 369b can be inserted into the fastening ring 369a and fastened. The fixing wire 369b can be brought into close contact with the pipe 10 while the pipe 10 is wound and the blocking body 363 can be positioned around the pipe 10 while surrounding the connecting member 11 can do. That is, the blocking portion 306 may be held in a state of being coupled to the pipe 10 while surrounding the connecting member 11. [

Further, in a state in which the blocking portion 306 surrounds the connecting member 11, the worker can be placed on the other workbench 300. [ Here, the worker can be positioned on the upper surface of the seat 301 and the back portion can be positioned so as to face the support portion 304. Particularly, the operator can observe the connecting member 11 located inside the blocking body portion 363 through the visual field portion 367, open the closing opening 306a using the opening / closing portion 365, The hand can be inserted into the blocking body portion 363 through the inserted opening 306a. Thus, the operator can perform the welding operation in a predetermined space between the blocking portion 306 and the pipe 10. [ Here, the spark due to the welding may be induced in the blocking base portion 361 and the blocking body portion 363, and may not be scattered around as well as the operator.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Various modifications and variations are possible.

100, 300: worktable
101, 301:
102, 302: first coupling portion
103, 303:
104, 304:
105, 305:
106, 306:

Claims (9)

(a) the piping is positioned vertically adjacent the exterior wall of the building;
(b) the bracket is coupled to the pipe and secured to the outer wall of the building;
(c) the workbench is coupled to the piping; And
(d) the piping is welded by an operator located on the workbench,
(c)
(c1) a first engaging portion of the workbench is coupled to the piping and is supported on the brackets such that the seating portion of the workbench is positioned in a horizontal direction and the support portion of the workbench is positioned to face the pipe across the seating portion;
(c2) a second coupling portion of the workbench is coupled to the piping and is located below the first coupling portion;
(c3) enclosing a portion to be welded in the pipe by vertically positioning the cut-off base portion in a horizontal direction by being joined to the pipe between the first joint portion and the portion to be welded in the pipe; And
(c4) a step of inserting and passing the fixing wire through the fixing ring while winding the pipe while the fixing wire is connected to one of the fixing rings, and fixing the fixing wire to the fixing ring by the fixing ring,
(d)
(d1) securing the safety collar of the operator's harness to a connection ring provided on the outer wall of the building;
(d2) the hip of the operator is positioned on the upper surface of the seat portion so that the back portion faces the support portion; And
(d3) a step of observing the inside of the cut-off body part through the visual field part and inserting the hand into the cut-off body part through the cut-in opening after opening the cut- The method comprising the steps of:
delete delete A worktable installed in a pipe positioned vertically adjacent to an outer wall of a building,
A seating part formed in a plate shape and positioned to intersect the pipe in the horizontal direction;
A first engaging portion extending from one side edge of the seat portion and being coupled to the pipe and supported by the bracket;
A second engaging portion extending from the lower surface of the seat portion and tilted to be positioned corresponding to the first engaging portion and coupled to the pipe;
A support portion formed in a plate shape and extending upward from the other side edge of the seat portion;
A receiving portion connected to a lower portion of the second coupling portion and positioned to intersect the second coupling portion; And
And a blocking portion located on the upper side of the first coupling portion and coupled to the pipe so as to surround the portion to be welded in the pipe,
The blocking portion,
A cut-off base portion formed in a plate shape, the cut-off base portion being coupled to a pipe between the first joint portion and the portion to be welded in the pipe and positioned in the horizontal direction;
A blocking body portion extending in a vertical direction from a top surface edge of the cut-off base portion and surrounding the portion to be welded in the piping, the blocking body portion being formed around the piping,
An opening / closing part installed in the blocking body part to correspond to the charging opening and opening / closing the charging opening;
A viewing portion formed of a transparent material, the viewing portion being formed to be positioned on an upper side between the charging openings in the blocking body portion; And
And a blocking fixture positioned above the portion to be welded in the pipe while connecting the piping and the inner side surface of the cut-off body portion.
delete 5. The method of claim 4,
Wherein the back portion of the operator is supported on the support portion and the foot of the operator is positioned on the support portion when the hip of the operator is positioned on the upper surface of the mount portion.
delete delete The connector according to claim 4,
A plurality of retaining rings spaced apart from each other along the circumference of the pipe at an upper inner surface of the blocking body portion;
A fixed wire having a first end connected to one of the fixed rings and having a wire elastic portion adjacent to the second end; And
And a fastening ring connected to the second end of the stationary wire,
Wherein the fastening wire is fastened to the fastening ring in a state where the fastening wire is wrapped around the pipe and passes through the fastening rings and the fastening wire has a restoring force to which a tensile force is applied so that the wire elastic part is contracted.

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