JPS59217090A - Method of repairing socket pipe joint - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a one-step repair method for a sawtooth pipe assembly for gas transport, etc., in which the end of the pipe body is inserted into a socket and sealed.

In such a conventional socket frame, yarn and lead are packed between the inner circumferential surface of the socket and the outer circumferential surface of the end of the tube inserted into the socket. If a gas leak occurs due to aging, it can be repaired by adding more lead and packing.
is being carried out. In such prior art, gas leakage occurs again with time C filtration. In other prior art, the entire socket pipe joint that is causing the gas leak is covered with a cover, and this crack is removed. Repairs are carried out by injecting a sealing material into the joint and covering the entire outer periphery of the socket pipe joint. In such prior art, the socket pipe p
It takes a lot of effort to cover your hands with a cover and apply sealant. Also socket pipe 1
1j: The circumference of the hand will swell greatly, and therefore, if the socket pipe joint is buried underground, a correspondingly larger hole will have to be dug, and it will take a lot of effort to make the rod. Requires. Further, a large amount of sealing material is required, and such sealing material is expensive.

The purpose of the present invention is to maintain airtightness for a long period of time,
Moreover, socket pipe T is realized at low cost with improved drainage efficiency! 4: Providing manual repair methods.

FIG. 1 is a sectional view of a portion of a socket pipe joint 1 which is the basis of the present invention. The end portion 4 of the tubular body 3 is inserted into the sonoret 2 . These two sockets have a hole 6 extending concentrically and parallel to the tube layer 15, and a hole 6 extending outward from the tube layer 15 in the direction (to the left in FIG. 1) of the tube. It has a widening conical surface 7. A 7-direction flange 8 is formed at the outer end of the tube axis of the socket l-2. Between the inner circumferential surface of the shaft hole 6 and the outer circumferential surface of the tube end 4, there is a
From the right side of the figure) to the outside (left side of Figure 1), 1-9 and the base +XO are packed in this Ml:i order. Yen QIE
An endless ring-shaped seal member 11 made of a material such as rubber is pressed against the surface 7, and the push ring 12 is pressed against the face 7.
is pressed inward on the tube axis. This press ring 12 has 7 lunches and 8
and the bolt 13 that passes through the press ring 12, and this bolt 13.
The socket 2 is firmly tightened by the nut 14 that is screwed into the socket 2.

If gas leaks from between the inner circumferential surface of the socket 2 and the outer circumferential surface of the tubular body 17iii portion 4 over time in such a state, first, according to the present invention, the bolt 13 and the nut are 14 is removed to obtain the state of 21M(1).

Press ring] 2 and seal member 1] Melt and remove from socket 2 1
be done. Therefore, 6s'i 10 is caulked inside the hole 6 from the outside of the bone phase I to stop the gas leakage.

Therefore, the ifi+l+ hole 6, the portion of the conical rlri 7 that leads inward to the tube axis, and the outer circumferential surface of the tube end 4 are thoroughly cleaned, and then a Apply primer and wait until the primer dries.

Next, as shown in FIG. 2 (2), a sealing material 15 is packed outside the tube axis of the lead 1o. This sealing material 15 is a material that has airtightness and viscosity and is plastically deformable, and is made of, for example, a butyl rubber adhesive. This sealing material 1
5 is formed in the shape of an elongated string and is wound around the outer periphery of the tube end 4.

Therefore, as shown by F 2 K (3), bolt 13
and Oak) 14 to JTl and rubber% flll to JII'
Press with the hook 12. In this way, the sealing member 11 presses the sea/Nu5 inwardly, and this sealing material 15 is applied to the lead 10 and the inner circumferential surface of the hole 6, .
゛5'' body 'ti' + 4 outer peripheral surface, sealing member 11
Furthermore, the circle Φ[f-plane 7 is closely sealed, and the sealing is completed.

In this way, the sealing material 15 is compressed by the inside of the press ring 12, and the arrow string is completely achieved. Even if the sealing member 11 changes its ratio due to aging and loses its elasticity 'l'1g,
The action of the sealing material 15 prevents gas leakage.

As mentioned above, according to the unexploded IJJ, yarn, lead, air, and oil are applied from the inside to the outside of iTi' WQli at 17i1 between the inner circumferential surface of the shaft hole and the outer circumferential surface of the tube end. j!
Since a certain plastic 'r1' easily deformable sealing material or the like is packed in this order and is pressed and repaired by the sealing member, the seal is maintained for a long period of time. Moreover, the sealing material only needs to be relatively smooth.
In addition, as described above, this sealing material is inserted between the inner circumferential surface of the tube shaft and the outer circumferential surface of the tube end. In this respect as well, working cooling is improved and airtightness can be achieved with a sealing material with a small M.

[Brief explanation of the drawing]

Figure 1 is a 1':'i ii'l'i diagram of a sonort pipe joint that is unexploded, Akinoi + ij, and 'q. Figure 2 is a cross section showing the working procedure of an embodiment of the present invention. It is a diagram. 1... Sono 7 "Soto↑See 1* Hand, 2... Socket, 4... Tube body da 1 "A: i", l", 6... S/lit hole, 7... Conical surface, 8... outward flange, 9... yarn, 10... lead, 11... sealing member, ]2... press ring, ]3... bolt, 14... nut, 15...Seal member agent Patent attorney Torikyo 11 (1) Figure: fl! 'If', '+'(inside' (F f: l'i no change) Fig. 1 ＼ (3) Fig. 2 1000 k, Draw D, If (force formula)% formula%
] 2. Famous haiku of Koko, Sokeso 1 pipe 1i1; 'Ding no Il'e 4i-TI')
(, Famous event of Sodeichi 1 Sen 1 series with cow, Ko, 1 (ti person's name (
i'l 2 ji) Jinsei 几 1i/i (: 1. Nikai 11, 1, Mr. Ri I\ 11-1s1 Osaka City Nishi 1me 7 Nishihonmachi L] Kawa 113:
)()ji Shinko J product Hiruaki+1158 year 13'A t
l l-J (Shipping 11) 0.7 both positive J'1gL
1lJIA1111', I'J(lifii, t;,
iL"QIr state" i, rlli positive contents (1) Akira h111-1: According to 1 side clean 41' (
(No change to internal IF).

Claims (1)

[Claims] In a socket pipe joint in which the end of a pipe body is inserted into a socket and sealed, the socket has a shaft hole and a circle Φ [r Yarn and lead are packed in this order between the inner circumferential surface of the shaft hole and the outer circumferential surface of the end of the tube from the inside of the tube shaft to the outer circumferential surface of the tube. In the socket frame S type repair method, a sealing member is interposed between the outer circumferential surface of the body end and the sealing member is pressed inward of the tube shaft by a press ring attached to the socket. A method for repairing a socket pipe joint, which is characterized by interposing a sealing material that is airtight and adhesive between the circumferential surface and the outer circumferential surface of the end of the pipe body, and is easily plastically deformed between the ship and the push ring. .