KR100323386B1 - An apparatus for Pipe cutting and exchanging - Google Patents

Abstract

The present invention is an old pipe crushing replacement device suitable for replacing and replacing various conduit and water, sewer pipes or gas pipes buried underground, a plurality of pull rods that are mutually coupled and both ends of the old pipes It is installed on one side of the work space formed at the end and is operated in a forward direction to move the plurality of drawn rods coupled to the inside of the old pipe to penetrate to the other side of the work space, and the reverse operation is performed to pull the plurality of drawn rods passed in the reverse direction When the drawing means penetrates the drawing rod to the other side of the work space, the drawing means is attached to the penetrating drawing rod, and the drawing means is made to cut the old tube by the force pulling the drawing rod in the reverse direction. Expansion means for expanding the old tube cut by the means, and attached to the perforated drawing rod It includes a pipe pulling means for moving the new pipe to the space is expanded and the expansion means.

Therefore, it is possible to replace the old pipe with a new pipe without covering the surface, thereby minimizing the impact on the traffic flow of the surface, and reducing the economic cost loss due to the surface covering.

Description

An apparatus for pipe cutting and exchanging buried underground

The present invention relates to an old pipe crushing replacement device, in particular, to replace the old conduit and water, sewer pipes or gas pipes buried in the ground to replace the new pipes by non-cracking without covering the surface It is a suitable old pipe shredding replacement device.

Typically, conduits, water, sewer pipes, and gas pipes are mostly buried underground.

In order to bury these various pipes in the ground, the surface is covered with a certain depth, and then a pipe is installed, and the soil is covered thereon.

The pipes installed in this way will be corroded or broken in and out of the pipe depending on the environment of the fluid or soil flowing along the pipe.

In particular, in the case of water pipes, if the pipes are corroded or broken, this causes a very serious problem of contaminating drinking water. In the case of sewage pipes, if the pipes are corroded or broken, the surrounding soil is contaminated by wastewater and waste water. Is generated.

In addition, in the case of gas pipes, when the pipes are corroded or broken, gas may leak to cause problems such as an explosion accident.

Therefore, underground pipes must be replaced with new ones after a certain period of time.

However, in order to replace the old pipe buried in the ground, the surface is re-opened to a certain depth, the old pipe is lifted out, and then a new pipe is buried. come.

In addition, if a river or a ground building is located where the old pipe is to be replaced with a new pipe, a water barrier to block the flow of the river must be preceded, or a pipe must be bypassed and buried, so that the construction cost can be increased and construction period can be increased. There are many problems such as increase.

Therefore, there have been many efforts to easily replace the old pipe buried underground.

Accordingly, the present invention has been made to solve the problems caused by the conventional replacement of the old pipe, the old pipe crushing replacement device that can easily replace the old pipe in the ground without obstructing the flow of ground traffic, old pipe to a new pipe The purpose is to provide.

Accordingly, the present invention is an old pipe crushing replacement device for replacing the old pipe buried in the ground in order to achieve the above object, a plurality of pull rods are mutually coupled; It is installed at one side of the work space formed at both ends of the old pipe, and it is operated forward to move the plurality of drawn rods coupled to the inside of the old pipe to penetrate to the other side of the old work space. Pulling means; Cutting means for cutting the old tube by the force that the drawing means penetrates the drawing rod to the other side of the work space, and the drawing means pulls the drawing rod in the reverse direction; Expanding means attached to the penetrating drawing rod and expanding the old tube cut by the cutting means; And a tube pulling means attached to the penetrating drawing rod to move the new tube into the space where the cutting means and the expanding means are expanded.

Here, the drawing rod is made in the form of a ladder structure, the cutting means is installed to fit and coupled to the draw rod of the ladder structure form and the crushed body fixed to the fixing piece; A plurality of support wheels installed at an upper end of the crushing body to support the crushing body while being rotated in close contact with the ceiling of the aging pipe when the crushing body is moved into the old tube by the drawing means; Installed at the bottom of the shredding body is made of a roller blade for cutting the bottom of the old pipe when the shredding body is moved in the reverse direction by the drawing means,

A plurality of roller blades are installed at one or two or more at the bottom of the shredding body, and a plurality of roller blades are installed stepwise at the bottom of the shredding body so as to cut the bottom of the old pipe having different inner diameters.

1a, 1b is a side view and a front view of the cutting means of the old pipe crushing replacement device of the present invention,

2a, 2b is a side view and a plan view of the drawn rod of the present invention pipe crushing replacement device,

3 is a coupling state diagram showing the coupling of the cutting means and the drawing rod of the old pipe crushing replacement device of the present invention,

4 is a state diagram of use of the old pipe crushing replacement device of the present invention

5 is a cross-sectional view of the <V-V '> direction of FIG.

6 is a cross-sectional view taken in the <VI-VI '> direction of FIG.

■ Brief description of the main parts of the drawing ■

10: cutting body portion 11: support wheel

12: support wheel fixing plate 13: roller blade

14: tightening screw 20: drawing rod

21,21 ': Combined piece 22: Fixed piece

30: old pipe 31: new synthetic resin pipe

40: air expansion 41: towing coupling

42: hydraulic system 43: underground

44,45: Workman

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

The inventors of the old pipe crushing replacement device is one of the work holes (44, 45) formed on both ends of the plurality of drawing rods (Lod) 20, and the old pipe 30 to be replaced to be largely coupled to each other in the form of ring coupling Installed in the ball 45 is operated forward to move the plurality of draw rods 20 coupled to the inside of the old pipe 30 to penetrate to the other work ball 44, the plurality of draw rods through the reverse operation ( Drawing means 42 for pulling 20) in the reverse direction, and when the drawing means penetrates the drawing rod 20 to the other side of the work space 44, it is attached to the penetrating drawing rod and cooperates with the reverse movement of the drawing rod 20. It is attached to the cutting means 10 to 14 for cutting the old tube 30 by the force that the drawing means is pulled while being moved into the old tube 30 and the penetrating drawing rod 20 to the cutting means 10 to 14. When crushing by expanding the old tube (30) cut by Is attached to the expansion gongsudan 40 and, through the pull-out rod 20 is made to expand gongsudan 40 as the check is moved into the space notes comprises a traction tube means (41) for installing the new pipe.

In more detail, the drawing rod 20 has a ladder structure in which the engaging pieces 21 are installed at regular intervals as shown in FIGS. 2a and 2b, and the drawing rod and the other drawing rod at both ends. The hook connection part 20-1 is formed at one side so as to be connected to each other, and the hook connection part 20-1 is formed at the other side so as to correspond to each other so that the hook connection part 20-1 is fitted.

Thus, the ring connecting portion of the other drawing rod is connected to the ring connecting portion of the drawing rod so that the plurality of drawing rods can be coupled to each other.

As the drawing means, a plurality of drawing rods 20 may be pushed into the old pipe 30 from the work hole 45 to penetrate the work hole 44 during forward driving. It is preferable to use a hydraulically actuated hydraulic propulsion device 42 so that the plurality of drawing rods 20 penetrated up to 44 can be pulled out and pulled back into the work hole 45.

Referring to FIGS. 1A, 1B, 3, and 5, the cutting means has a top portion 10-1 having a cylindrical shape and a bottom portion 10-2 having a vertically protruding shape. And a cutting body portion 10 supported by the fixing piece 23 fitted to the locking piece 21 of the drawing rod, and an upper portion 10- of the cutting body portion 10. 1) a plurality of support wheels 11 and the incision body 10 which are rotatably axially coupled to the support wheel fixing plate 12 fastened by the fastening screw 14 to the ceiling of the old pipe 30 and rotated in close contact with each other. Is installed in the lower portion 10-2 of the old pipe 30 is made of a roller blade (Roller Blade) (13) for cutting while rotating the bottom.

Here, the roller blade 13 is installed on the lower portion (10-2) of the incision body portion 10 in one or more than two at a plurality of multi-stage obliquely installed in the case of different diameter of the old pipe 30 to be cut In addition, it is possible to cut the bottom of the old pipe 30 by the roller blades 13 installed in multiple stages.

The expansion means is ring-coupled to the engaging piece 21 of the drawing rod 20 so as to open the old pipe 30 cut by the roller blade 13 more, thereby completely crushing the old pipe partially cut and the new pipe 31. It is preferable to use a conical expander 40 having a diameter larger than the diameter of the old pipe so as to secure a space enlarged so that it can be moved.

And, the tube pulling means couples the new tube 31 to the traction coupler 41 ringed to the drawing rod 20 so that when the drawing rod 20 is moved in the reverse direction by the drawing means 42 It is moved backward along the rod 20 so that it can be moved to the expanded space formed by the air expander 40.

The replacement of the old pipe by the old pipe crushing replacement device of the present invention made in such a structure is as follows.

FIG. 4 is a state diagram of use of the apparatus for crushing old pipes of the present invention, FIG. 5 is a cross-sectional view of <V-V '> for FIG. 4, and FIG. 6 is a <VI-VI'> for FIG.

First, in order to install the old pipe crushing replacement device of the present inventors to secure the working holes (44, 45) by digging both ends of the old pipe that needs to be replaced with a predetermined depth and width. If a menhole is installed instead of such a worker, the worker may be replaced with a menhole.

The hydraulic propulsion device 42 is installed in the work hole 45, and a plurality of ring rods 20 are coupled to the inside of the old pipe 30 by the hydraulic propulsion device to be pushed into the opposite working hole 44 so as to penetrate the working hole 44. Move it.

When the plurality of drawing rods 20 are moved to the opposite working ball 44, the cutting body portion 10 of the cutting means is fitted to the engaging piece 21 of the drawing rod 20, and then the cutting body portion 10 Fixing piece (23) is inserted between the engaging piece (21 ') in the rear direction of the incision body portion so as not to push back.

When the incision body portion 10 is coupled to the drawing rod 20, the hydraulic propulsion device 42 is operated in the reverse direction to pull the drawing rod 20 in the reverse direction to be moved back into the old pipe 30.

The incision body portion 10 moved into the old pipe 30 is the old pipe by the force of the hydraulic propulsion device 42 is pulled in the state supported by the support wheel 11 to the ceiling of the old pipe as shown in FIG. The bottom of the incision is cut through the roller blade (13).

At this time, since the roller blades 13 are installed in multiple stages with a plurality of steps, the bottom of the old tube can be cut by any one of the roller blades of the plurality of roller blades 13 even when the diameters of the old pipes 30 are different. .

When the bottom of the old pipe 30 is cut by the roller blades 13, the expander 40 is loop-coupled to the drawing rod 20 so that the expander 40 is moved into the cut old pipe.

In this case, referring to FIG. 6, the air expander 40 is formed in a conical shape having a diameter larger than that of the old pipe 30 so that the bottom pipe is completely opened or broken so as to completely break up the old pipe 30 having its bottom cut. To form a space.

Then, when the air expander 40 completely crushes the old pipe 30, a new pipe that replaces the old pipe with the expanded space by coupling the coupling connector 41 for pulling the new pipe 31 to the drawing rod 20 ( 31).

In this way, the roller blade 13 and the air expander 40 continuously crush the old pipe 30, and move to the work hole 45 in which the hydraulic propulsion device 42 is installed. After the installation is completed by (45), the pipe replacement process for replacing the old pipe with a new pipe is completed.

As described above, the inventors of the old pipe crushing replacement apparatus is a new pipe is installed while crushing the old pipe through the roller blades and air expander can replace the old pipe with a new pipe without covering the ground, so the ground according to the pipe replacement work The impact on traffic flows can be minimized, and the economic loss due to the resurfacing of the surface and the ground subsidence can be suppressed.

In addition, since it is not necessary to cover the ground, it is possible to shorten the time taken to replace the old pipe with a new pipe, thereby shortening the old pipe replacement air.

Claims (1)

In the old pipe crushing replacement device for replacing the old pipe buried in the underground with a new pipe, A plurality of pull rods formed on one side of the female ring connecting portion and the other of the male ring connecting portion formed by ring coupling the female ring connecting portion and the male ring connecting portion; It is installed on one side of the work hole respectively formed at both ends of the old pipe, the forward operation is to move the plurality of pull-out rods coupled to the inside of the old pipe to penetrate to the other side of the work hole, the reverse operation is the through A hydraulic propulsion device for pulling a plurality of drawn rods in a reverse direction; When the hydraulic propulsion device penetrates the drawing rod to the other side of the work hole and the crushing body is fitted to the penetrating drawing rod; A plurality of support wheels installed at an upper end of the crushing body to support the crushing body while being rotated in close contact with the ceiling of the aging pipe when the crushing body is moved into the old tube by the hydraulic propulsion device; When the shredding body is moved into the old pipe by the hydraulic propulsion device to cut the bottom of the old pipe, a plurality of roller blades are stepped on the shredding body so as to cut the bottom of the old pipe having a different inner diameter and ; Expanding means attached to the drawing rod to enlarge the old pipe cut by the roller blade; And a pipe pulling means for attaching to the drawing rod to move the new pipe into the space in which the roller blade and the expansion means are expanded.