KR200393950Y1 - Multifunction Polyethylene pipe Drill machine - Google Patents

Abstract

The present invention is used with a sandwich valve when the gas pipe work, removable saddle (Saddle) is installed in the polyethylene (PE) pipe and the sandwich valve is coupled to the upper; And a multifunctional perforator installed on an upper portion of the sandwich valve coupled to the removable saddle.

Description

Multifunction Polyethylene Pipe Drill Machine

Technical Field

The present invention is a device used when blocking a certain section in a gas pipe made of polyethylene (PE) material and performing a predetermined plumbing work, which is used together with a sandwich valve, and enables drilling, tapping, and plugging of PE pipe. Plugging) The present invention relates to a multifunctional perforator capable of performing a task.

Prior art

When repair and replacement work are necessary due to branching of gas pipes or other failures of gas valves or damage to the pipes themselves, the gas supply is limited to the specific section where the work is performed, and the gas is normally supplied to the remaining sections. Blocking certain sections of piping should be preceded.

In this case, the PE pipe blocking operation is performed as follows.If the pipe diameter of the PE pipe is small, the gas is cut off by crimping the damaged part and the connecting part before and after through the PE SQUEEZE equipment. There is a problem that the pipe is damaged, the damage of the PE pipe to be crimped in the pipe diameter of 150mm or more is very large, there is a problem that can not be restored to the existing state.

Therefore, a pipe having a diameter of 150 mm or more is fused with a PE socket as shown in FIG. 1, and then drills the outer wall of the pipe by using a hole saw at the top of the PE socket, Remove the hole saw, install the blocking device on the upper part of the PE socket, and install the airbag inside the PE pipe by using the blocking device to cut off the gas. Do this. Once the piping is completed, the airbags and shutoff devices are removed from the PE socket, the top of the PE socket is closed with a PE plug and closed with a PE cap.

However, in the case of using the conventional gas shut-off method as described above, a considerable amount of gas flows inside the pipe during PE drilling and gas shut-off process, and the risk of safety accidents persists. In the process of sealing the PE socket by using the gas in the pipe is discharged through a considerable amount of PE socket, even after all the work is completed, the PE socket is still fused to the upper part of the pipe bar, the integrity of the pipe There is also a big problem that the risk of deterioration and lead to large accidents due to breakage of the PE socket during excavation work.

The purpose of the present invention created to solve the above problems is as follows.

First, it is an object of the present invention to provide a means for improving the safety by minimizing the outflow of gas in the pipe during the drilling, blocking, tapping, plugging process of the PE pipe.

Second, another object of the present invention is to provide a means for performing the drilling operation, tapping operation and plugging operation using a single equipment.

Third, another object of the present invention is to ensure the soundness of the pipe and to ensure safety for the excavation work after work.

Fourth, another object of the present invention is to provide a punching machine using a cutter effective for drilling work.

The technical configuration of the present invention for achieving the above object is as follows.

The present invention is used with a sandwich valve when the gas pipe work, removable saddle (Saddle) is installed in the polyethylene (PE) pipe and the sandwich valve is coupled to the upper; And a multifunctional perforator installed on an upper portion of the sandwich valve coupled to the removable saddle, wherein the removable saddle includes a screw connection portion coupled to the sandwich valve and a curved portion corresponding to the upper outer surface of the PE pipe. Birds; And a lower saddle having a shape corresponding to a lower outer circumferential surface of the PE pipe and detachably coupled to the upper saddle, wherein the multifunctional perforator includes: a body portion coupled to a sandwich valve; A support frame extending upward from the upper portion of the body portion; A feed screw unit installed at an upper end of the support frame; A feed shaft coupled to the feed screw and moving up and down; And a central axis extending upward and downward from upper and lower ends of the transfer shaft and having a cutter mounting portion at a lower end thereof and a rotation handle provided at an upper end thereof.

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

As shown in FIG. 2, the multifunction puncher 200 includes a body 210 coupled to a sandwich valve, a support frame 220 extending upward from the top of the body 210, and an upper end of the support frame 220. The feed screw unit 230, which is installed in the feed screw unit 230 is fastened to the feed shaft 240 and the lower end is provided with a cutter mounting portion 251 and the upper end is provided with a rotary knob 255 at the center shaft And 250.

The feed screw unit 230 is formed with a female screw, and the feed shaft 240 is fastened to feed up and down.

The central shaft 250 is separately formed to enable sliding movement up and down inside the feed shaft 240.

As shown in FIGS. 4A and 4B, the locking device 260 is provided on the pivot lever 261 and the central shaft 250 provided at the upper end of the feed shaft 240 and the pivot lever ( It is configured to include a lever receiving portion 262 is accommodated and bound 261 can be fixed by combining the central axis 250 and the feed shaft 240 integrally.

The shape of the locking device 260 is not necessarily limited to that shown in FIG. 4 and may simply combine two shafts into one using a lock pin.

When the central shaft 250 and the feed shaft 240 are integrally coupled and fixed by the locking device 260, the rotary shaft 255 is rotated to be mounted on the cutter mounting portion 251 of the lower end of the central shaft 250. The cutter moves downward to cut the PE pipe.

As shown in FIG. 6, the rotary knob 255 is formed to be separated from the central shaft 250, and stoppers 256 are formed at both ends of the outer circumferential surface of the rotary knob 255. A coupling hole 252 having a shape corresponding to a cross section of a portion where the stop protrusion 256 is formed is formed on the outer circumferential surface of the 250.

Therefore, the rotary knob 255 can be inserted and removed only at the position where the face of the stopper 256 of the rotary knob 255 and the shape of the coupling hole 252 coincide with each other. 255 is not easily separated from the central axis 250 in the process can increase the efficiency of the work.

The see-through window 211 may be provided on the upper portion of the body portion 210 as a transparent material such as polycarbonite to see the inside of the body portion 210. Therefore, it is possible to directly check the working process during drilling, tapping and plugging operations, thereby improving work efficiency.

The see-through window 211 is provided with a hollow through which the central axis 250 passes.

The inside of the body portion 210 maintains hermeticity in a state coupled with the sandwich valve-, the purging valve 212 is provided on the side of the body portion 210 to the gas inside the body portion 210 if necessary Can be released into the atmosphere.

The removable saddle 100 has a lower portion of the upper saddle 110 and the PE pipe having a threaded connection 111 to be coupled with the sandwich valve and a curved portion 112 corresponding to the upper outer circumferential surface of the PE pipe as shown in FIG. 3. It has a shape corresponding to the outer circumferential surface and comprises a lower saddle 120 to be detachably coupled with the upper saddle (110). That is, the PE pipe is positioned between the upper saddle 110 and the lower saddle 120.

The removable saddle 100 is fixed to the PE pipe while the upper saddle 110 and the lower saddle 120 are coupled, and the sandwich valve is coupled to the upper saddle 110.

The plug mounter 270 is as shown in Fig. 7, which is composed of a plug engaging portion 271 and a stem 275.

The plug coupling portion 271 has a cylindrical shape with an open top, and a plug is bolted to an outer lower surface thereof, and a locking jaw 272 protruding inward is provided at an upper end of the inner circumferential surface thereof.

The lower surface of the plug coupling portion 271 is penetrated to allow the bolt to pass therethrough, so that the bolt can be fastened and dismantled at the top of the open plug coupling portion 271.

An upper portion of the stem 275 is coupled to the cutter mounting portion 251, and a lower portion of the stem 275 may be inserted into the plug coupling portion 271 in which the locking jaw 272 is formed by cutting a portion of the disc-shaped edge. A portion of the edge is not stepped so as to be able to enter between the lower portion of the locking step 272 and the inner lower surface of the plug coupling portion 271.

Accordingly, when the stem 275 is inserted into the plug coupling portion 271 and rotated at a predetermined angle, the edge of the step 275 processed by the step is entered into the lower portion of the locking jaw 272, and the binding is made. Rotation in the opposite direction releases the binding again.

The cutter mounted on the cutter mounting portion 251 of the central shaft 250 is a triple blade cutter 30.

The triple blade cutter 30 is a center drill blade 31 formed to protrude in the lower center, as shown in Figure 5 (a), the main drill is formed at a predetermined interval spaced apart from the center drill blade 31 It comprises a cutter blade 32 and a counterbore blade (33) formed radially protruding on the outer peripheral surface of the main cutter blade (32).

The center drill blade 31 is cut in contact with the PE pipe for the first time, and the coupon, which is a circular PE pipe piece generated as a result of cutting the PE pipe by the main cutter blade 32, is the center drill blade 31. It is drilled in and remains inserted. Therefore, the coupon generated after the drilling operation can be easily removed.

In addition, the chip generated during the cutting process is not broken and is formed in a long band while being accommodated in the space between the center drill blade 31 and the main cutter blade 32 and can be easily removed without leaving the inside of the PE pipe after drilling. .

The counterbore blade 33 is used to cut out the counterbore with a constant width and depth at the edge of the perforated hole.

Therefore, the triple blade cutter 30 used in the present invention allows easy removal of coupons and chips after drilling, as well as counterbore operation, along with basic drilling.

The tab 40 which forms the female thread in the drilled hole is as shown in Fig. 5 (b), wherein the portion protruding above the outer circumferential surface is for controlling the completion position of the tap operation. That is, when the protruding portion is in contact with the upper portion of the perforated hole, the progress of the tab 40 is further inhibited and it can be confirmed that the work is completed.

Looking at the working process according to the present invention of the above configuration is as follows.

(1) Saddle installation step

The upper saddle 110 and the lower saddle 120 are combined to install the removable saddle 100 at both ends of the PE pipe to be blocked from gas supply.

(2) combining step

The sandwich valve is coupled to the screw connection 111 of the upper saddle 110.

(3) Cutter mounting step

The triple blade cutter 30 is mounted on the cutter mounting part 251 of the multifunction puncher 200.

(4) 1st drilling machine installation step

The multifunction puncher 200 is combined with the sandwich valve to complete the punch preparation.

(5) drilling step

The sandwich valve is opened and the triple blade cutter 30 mounted on the multifunction puncher 200 approaches the PE pipe, and the rotary knob 255 is rotated to drill the PE pipe.

(6) Tap replacement step

When the drilling is completed, the triple blade cutter 30 of the multifunction puncher 200 is moved upward, the sandwich valve is closed, the multifunction puncher 200 is separated from the sandwich valve, and the cutter mounting part of the multifunction puncher 200 Remove the triple blade cutter 30 from 251 and mount the tab 40 to process the thread.

In this case, by releasing the locking device 260 to allow the central shaft 250 to be transferred independently of the feed shaft 240, the triple blade cutter 30 having completed the drilling operation can be moved to the upper portion of the sandwich valve more quickly. .

Coupons and chips generated during the drilling process is most likely to come out with the triple blade cutter (30).

On the other hand, after separating the multifunctional perforator 200 from the sandwich valve, the shut-off device is installed in the sandwich valve, open the sandwich valve and insert the air bag inside the PE pipe to block the flow of gas, the flow of gas is blocked A predetermined piping work is carried out on the PE pipe. After the pipework has been carried out, the airbag is removed, the sandwich valve is closed and the shutoff device is disconnected from the sandwich valve.

(7) Second Drilling Machine Installation Step

The multifunctional perforator 200 replaced with the tab 40 is coupled with the sandwich valve.

(8) Tap step

The sandwich valve is opened and the tap 40 mounted on the multifunction puncher 200 approaches the PE pipe, and the rotary knob 255 is rotated to process the female screw in the punched portion of the PE pipe. In this case, the tab 40 can be quickly approached to the PE pipe by using the central shaft 250 that is vertically conveyed separately from the feed shaft 240, and when the access is completed, the locking device 260 is used again. By combining the feed shaft 240 and the central shaft 250 integrally to process the female screw.

(9) Plug-in replacement step

After moving the tab 40 of the multifunction perforator 200 upward, close the sandwich valve, separate the multifunction perforator 200 from the sandwich valve, and tap 40 at the cutter mounting part 251 of the multifunction perforator 200. ), Mount the stem 275 of the plug mounter 270, bolt the plug to the plug coupling portion 271, and insert the stem 275 into the plug coupling portion 271 to engage the plug. Coupling with the engaging jaw 272 of the part 271.

Even in this case, the center shaft 250 is independently moved and rotated inside the feed shaft 240 by releasing the locking device 260 integrally coupling the center shaft 250 and the feed shaft 240. Move the tab 40 to the top of the sandwich valve as quickly as possible.

(10) 3rd drilling machine installation step

The multifunction perforator 200 is coupled with the sandwich valve.

(11) Plug fastening step

The sandwich valve is opened and the plug mounter 270 mounted on the multifunction puncher 200 approaches the PE pipe to fasten the plug to the female screw machined with the tab 40.

In this case, the central shaft 250 and the feed shaft 240 are separated to rotate the central shaft 250 using the rotation knob 255 in a state capable of separately transporting and rotating the fastening plug.

(12) Confidentiality check step

The purging valve 212 provided in the body portion 210 of the multifunction puncher 200 is opened to check whether airtightness of the plugged portion is maintained.

(13) perforator separation step

The stem 275 and the plug coupling part 271 are separated from each other, and the multifunction perforator 200 is separated from the sandwich valve.

(14) Saddle separation step

The sandwich valve is separated from the removable saddle 100 and the upper saddle 110 and the lower saddle 120 are separated from the PE pipe.

(15) pad fusion step

The PE fusion pad is attached to the upper part of the plug and the PE pipe around the plug to be electrofused to finish the work.

Technical effects according to the present invention of the above configuration is as follows.

First, it is possible to improve safety by minimizing the outflow of gas inside the pipe during the drilling, blocking, tapping, and plugging processes of the PE pipe.

Second, the drilling, tapping and plugging operations can be performed using a single multi-function drilling machine, which can improve the efficiency of the operation and reduce the maintenance cost of the equipment, thereby pursuing economic feasibility.

Third, when all the work is completed, there is no protruding part of the pipe, so the soundness of the pipe is secured and the risk of damage of the protruding part can be eliminated during the excavation work after the work.

Fourth, it is possible to perform the drilling operation more easily and effectively by using a triple blade cutter effective for drilling work.

1 is a cross-sectional view and a perspective view of a conventional PE socket.

Figure 2 is a schematic perspective view of a multi-functional boring machine for PE pipe according to the present invention, showing a state in which a triple blade cutter is mounted.

Figure 3 is a schematic exploded perspective view of the removable birds constituting the present invention, the PE pipe is located between the upper and lower birds.

Figure 4 shows a locking device for integrally coupling the feed shaft and the central shaft, (a) shows a separated state and (b) a combined state integrally.

Figure 5 shows (a) a triple blade cutter and (b) tabs mounted and used in a multifunctional perforator for PE sheaths.

Figure 6 shows the rotation knob and the coupling hole of the central axis coupled thereto.

7 shows a plug charger.

<Description of the symbols for the main parts of the drawings>

100: removable saddle (Saddle)

110: upper birds

111: screw connection 112: curved portion

120: lower birds

200: multifunctional perforator

210: body part

211: sight glass 212: purging valve

220: support frame

230: Feed screw part

240: feed axis

250: center axis

251: cutter mounting portion 252: coupling hole

255: rotating handle 256: stopper

260: locking device

261: pivoting lever 262: lever housing

270: plug mounting

271: plug coupling 272: locking jaw

275: Stem

Triple Blade Cutter

31: Center drill blade 32: Main cutter blade

33: counterbore

40: Tap

Claims (7)

As used with sandwich valves in gas piping work, Removable saddle (Saddle) is installed in the polyethylene (PE) pipe and the sandwich valve is coupled to the top; And, A multifunctional perforator installed on top of the sandwich valve coupled to the removable saddle; Consists of including The removable birds, An upper saddle having a threaded portion coupled to the sandwich valve and a curved portion corresponding to the upper outer circumferential surface of the PE pipe; And, A lower saddle having a shape corresponding to a lower outer circumferential surface of the PE pipe and detachably coupled to the upper saddle; It is configured to include, The multifunctional perforator, Body portion coupled to the sandwich valve; A support frame extending upward from the upper portion of the body portion; A feed screw unit installed at an upper end of the support frame; A feed shaft coupled to the feed screw and moving up and down; And, A central shaft extending vertically from the upper and lower ends of the feed shaft and having a cutter mounting portion at a lower end thereof and a rotation handle provided at an upper end thereof; Multifunctional boring machine for PE bowels, characterized in that comprising a. In claim 1, The central axis is formed separately to allow the sliding movement up and down inside the feed shaft, A locking device to integrally couple and fix the central shaft and the transfer shaft; Multifunctional boring machine for PE sheath, characterized in that it further comprises. In claim 2, A transparent viewing window having a hollow through which the central axis passes, and which is visible through the upper portion of the body part; And, A purging valve provided on the side of the body portion; More is included, The inside of the body portion is a multifunctional perforator for a PE bow pipe, characterized in that to maintain the airtight in a state coupled with the sandwich valve. The method of claim 2 or 3, The rotation knob of the central axis is formed separately to be separated from the central axis, Stopper protrusions are formed at both ends of the outer circumferential surface of the rotary knob, the coupling hole having a shape corresponding to the cross section of the portion where the stopper protrusion is formed so as to penetrate through the outer circumferential surface of the central shaft. In claim 4, The locking device, A rotation lever provided at an upper end of the feed shaft; And, A lever accommodating part provided on the central axis and receiving and binding the pivot lever; Multifunctional boring machine for PE bowels, characterized in that comprising a. In claim 5, A plug mounting unit coupled to the cutter mounting unit of the central shaft; Includes more, The plug mounting device, A plug coupling portion having a cylindrical shape having an open top and bolted to an outer lower surface thereof, and an upper end of the inner circumferential surface having a locking projection protruding inwardly; And, An upper part is coupled to the cutter mounting part, and a lower part of the disc shaped rim is inserted into the plug coupling part in which the locking jaw is formed, and the edge which is not cut enters between the lower locking jaw and the inner lower surface of the plug coupling part. A stem which is partially stepped to make it possible; Multifunctional boring machine for PE bowels, characterized in that comprising a. In claim 5, The cutter mounted to the cutter mounting portion of the central axis is a triple blade cutter, The triple blade cutter, Center drill blade; A main cutter blade spaced apart from the center drill by a predetermined interval; And, A counterbore blade formed on the outer circumferential surface of the main cutter blade; Multifunctional boring machine for PE bowels, characterized in that comprising a.