KR200280294Y1 - Division type connection pipe - Google Patents

Abstract

The present invention relates to a split type joint pipe, in the joint pipe 10 for interconnecting the double wall pipe 1, the joint pipe 10 is left and right with respect to the connection direction in which the double wall pipe (1) is connected and installed. The fitting projections 12-1 and 14-1 and the fitting projections 12-2 and 14-2 are formed to correspond to the joint surface, and the fitting projections 12-1 and 14-1 and the fitting projections 12-2 are provided. And a plurality of joint pipe bodies 12 and 14 in which coupling pieces 12-3 and 14-3 having through holes 12a and 14a are integrally protruded from the side surface on which 14-2 is formed, and the joint pipe body 12 Coupling member of the joint member 12 and 14 and the water stop member 16 inserted between the fitting protrusions 12-1 and 14-1 and the fitting jaw portions 12-2 and 14-2. (12-3, 14-3), characterized in that it consists of a bolt 18 and a nut (19) fastened to the through holes (12a, 14a) of the bar, connected to the point to be redirected to the buried double wall pipe The joint pipe to be installed is divided into pieces, and this split pipe body is manufactured by one mold injection. This reduces the design cost of the mold, making it possible to fix it with bolts and nuts that are stacked on both sides of the construction, and variably with respect to the circumferential shape of the double wall pipe for unstable double wall pipe. By allowing the dimensions of the connection part of the, it is possible not only to make a stable connection construction, but also to remove the fitting pipe during maintenance, and to replace only the corresponding pipe.

Description

Division type connection pipe

The present invention relates to a split type joint pipe, and more specifically, to improve the joint pipe for connecting a double wall pipe buried in the ground according to the intended use, and to allow a dimensional tolerance of the connection part, and with only one injection mold. Both sides can be used and easy to dismantle and install for maintenance.

In general, double wall pipes (or high-pressure pipes) being used are widely used in that they have excellent durability against earth pressure lubrication when the double wall structure is embedded as a pipe body. For the purpose of the city, urban sewage pipes, apartments, rainwater drainage pipes, residential side drain pipes, drainage tunnels for arable land management projects, etc., the range used for the formwork of tunnels is generally used for plumbing works except for pressure pipes.

The double-walled pipe is durable in spiral shape and has HDPE (high density polyethylene) material, so it is not subject to acid, alkali, chemicals, etc. It is used semi-permanently.

The embedding of the double wall pipe as described above is connected as a joint pipe, where the joint pipe is formed to have the same spiral shape as that of the double wall pipe, and the shape of the double wall pipe is used as elbow, T shape, cross shape, and the like.

Connection of the double wall pipe having a predetermined diameter to be connected from the joint pipe is connected to one end of the double wall pipe (1) to the joint pipe (2), as shown in Figure 1 attached, the connected portion is a flexible band Alternatively, the heat shrinkable band is used to prevent leakage, but the double wall pipe () 1 is extruded to the same size, the diameter of one end of the difference occurs 5 to 10%, so the connection work is not smooth. There is a disadvantage.

When the double wall pipe is produced in the spirally wound around its outer circumference, the band-shaped hollow tube body is wound around the heating pipe in the process of working in the field as the occurrence of pressurization of the inner tube. In most cases, forcibly inserting and connecting a double walled pipe in a problem of poor workability.

As usual, about the point where the size of the double wall pipe does not fit from the connection part of the joint pipe, an accident that usually occurs after the buried work is caused by a leak, and such a leak has a problem of dismantling the embedded pipe.

More specifically, in the state in which the double wall pipe is embedded as shown in FIG. 2, when abnormality such as leakage occurs after embedding of the joint pipe 2 including the double wall pipe 1, the double wall pipe is dismantled, and The repair work should be replaced by a double wall pipe and a joint pipe, but there is a problem in that workability is inferior and the double wall pipe and the joint pipe constructed as a whole must be completely exposed.

In the digging work, this is a common situation that leads to a large construction that exposes the pipe as a whole, as well as the double-wall pipe had a problem.

The above point is to dismantle the problem double wall pipe from the joint pipe after the excavation, as described above, the dismantling of the double wall pipe connected to the joint pipe is another joint from the joint pipe and the joint pipe including the double wall pipe There is a case where the double wall pipe must be completely exposed. This is often the case in areas where pipes are diverted at right angles to elbows and double wall pipes diverging from T-shaped joints.

Therefore, the construction that exposes such a pipe due to leakage has an uneconomical problem that the air is long, new joint pipe and double wall pipe must be buried again.

The present invention has been made in order to solve the conventional problems, and in connecting the double wall pipe by improving the split type joint pipe, it is possible to connect the double wall pipe using two half joint pipe as one injection mold. At the same time, it is possible to allow the diameter of the irregular double wall pipe, and to provide a split type joint pipe that can easily repair only the corresponding double wall pipe during maintenance.

According to the present invention for achieving the above object, in the joint pipe for interconnecting the double wall pipe, the joint pipe is formed to correspond to the fitting direction, the fitting jaw portion on the left and right joint surface with respect to the connection direction in which the double wall pipe is connected And a plurality of joint tubes having integrally protruding coupling pieces having a through hole in a side surface at which the fitting protrusion and the fitting jaw are formed, an index member inserted between the fitting protrusion and the fitting jaw of the fitting tube, and the coupling of the fitting tube. Characterized in that the bolt and nut is fastened to the through-hole installation.

1 is a perspective view showing a conventional joint pipe and a double wall pipe separately;

2 is a longitudinal sectional view showing a state in which a double wall pipe is buried in a conventional joint pipe;

Figure 3 is a perspective view showing the separation of the joint pipe of the present invention,

Figure 4 is a longitudinal cross-sectional view illustrating a state connecting the double wall pipe according to the present invention to the joint pipe,

5 is an enlarged view of a portion A of FIG. 4;

Figure 6 is an exploded perspective view showing a T-shaped joint pipe according to the present invention.

◎ Explanation of symbols for main part of drawing

1: double wall pipe 10: joint pipe

12, 14: joint body 12-1, 14-1: fitting protrusion

12-2, 14-2: Jaw portion 12-3, 14-3: Joining piece

12a, 14a: Through hole 16: Index material

18: Bolt 19: Nut

Hereinafter, with reference to the accompanying Figures 3 to 6 will be described in detail with respect to the subject innovation.

Figure 3 is a perspective view showing the separation of the joint pipe of the present invention, Figure 4 is a longitudinal cross-sectional view illustrating a state of connecting the double wall pipe according to the present invention to the joint pipe, Figure 5 is an enlarged portion A of Figure 4 6 is an exploded perspective view illustrating a T-shaped fitting tube according to the present invention.

In the joint pipe 10 for interconnecting the buried double wall pipe (1), the joint pipe 10 is a left and right joint surface (X-axis and Y in the drawing) with respect to the connecting direction in which the double wall pipe (1) is connected The fitting protrusions 12-1, 14-1 and the fitting jaws 12-2, 14-2 are formed to correspond to each other in the right angle direction of the shaft), and the fitting protrusions 12-1, 14-1 and the fitting jaw portions ( A plurality of joint pipe bodies 12 and 14 having protruding coupling pieces 12-3 and 14-3 having through holes 12a and 14a are provided on the outer side where the 12-2 and 14-2 are formed. Between the fitting protrusions 12-1 and 14-1 and the fitting jaws 12-2 and 14-2 of the tubular bodies 12 and 14, a foamed sponge-type water stopper 16 is provided for the purpose of blocking moisture from the outside. ) Is interposed.

In addition, the through holes 12a and 14a of the coupling pieces 12-3 and 14-3 of the fitting pipe bodies 12 and 14 are cylindrical with the bolts 12 and 14 as the bolts 18 and nuts 19. It is configured to bond with a sieve.

The joint pipe 10 is installed in the cylindrical body to connect the double wall pipe (1) is manufactured in each set size to connect the double wall pipe (1) of 150mm or more and 1200mm or less in diameter, a plurality of joint pipe body (12) The one injection molded article can be rotated by 180 ° another joint pipe body 14 with respect to one joint pipe body to form a joint pipe (10).

As shown in the fitting pipes 12 and 14, the fitting protrusions 12-1 and 14-1 and the fitting jaw parts 12-2 and 14-2 are elbow-shaped or T-shaped, respectively. A plurality of joint tubes 12 and 14 are formed in the circumferential direction with respect to the diameter formed by the joining.

Referring to the operation and effect on the separate joint structure of the present invention configured as described above are as follows.

First, in the buried work of the double wall pipe (1), the joint portion is usually connected using an elbow or T-shaped joint pipe (10) in the relation to install so as to branch at right angles or T-shape depending on the topographical elements.

In the present invention, the joint pipe 10 accommodates one end side of the double wall pipe 1 at the connector of the joint pipe bodies 12 and 14 having a half shape, and the double wall using another joint pipe body 12 and 14. Through holes 12a and 14a of the coupling pieces 12-3 and 14-3 formed on both joint pipe bodies 12 and 14, are matched by being wrapped in an upper and lower side or left and right sides according to the installed state of the pipe 1. Through the bolt 18 through the fastening of the nut 19 it is possible to connect the double wall tube 1 to be perpendicular to the vertical or horizontal.

On the other hand, the joint pipe body 12, 14 provided in the divided form as an injection mold manufactured article, it can be referred to as economic, the fitting protrusion in the direction of the connection, the fitting jaw as shown in FIG. The double wall pipe 1 can be connected while adjusting the space | interval.

More specifically, the diameter of the double-walled pipe (1) is, as described above, in the extrusion manufacturing dimensions of the diameter difference is 5 to 10% larger or smaller than the diameter of the connector in the state that the joint pipe body (12,14) is combined Is the majority.

However, the divided joint pipe 10 of the present invention is divided into each joint pipe body 12 and 14, and the fitting protrusions 12-1 and 14-1 and the fitting jaw portions 12-2 and 14-2. According to the gap adjustment, the left and right sides of the joint pipe can allow the connection of the double wall pipe 1 according to the tightness of the bolt 18 and the nut 19, respectively.

In addition, between the fitting protrusion and the fitting jaw is inserted into the water-resistant material 16 of the foamed resin has the advantage of preventing the inflow of water from the outside or vice versa leaking from the inside in advance, using a band to heat Compared with the conventional jointing method of fusion splicing, it is possible to omit equipment mobilization or additional process work required for a separate fusion operation.

In addition, in order to newly replace the double wall pipe (1) where a leak or the like problems were found after a certain period of time after the buried construction, the combined pieces of the joint pipe bodies (12, 14) of the present invention in the state of digging the abnormal site When the bolt 18 and the nut 19 connecting the (12-3, 14-3) side are loosened, the double wall pipe 1 can be easily dismantled, and the new double wall pipe 1 is combined in a split form. The air can be shortened during maintenance by the reassembly and use of the joint pipe bodies 12 and 14, and economical maintenance is possible because the double pipe wall 1 that is not connected is damaged as long as the corresponding pipe is replaced. Do.

Accordingly, the joint pipe 10 of the present invention can be suitably used as a sewer pipe including a general pipe that is generally buried in the ground.

As described above, the present invention is to make a split type joint pipe is installed at the point that is redirected with respect to the buried double wall pipe, this split type joint pipe is to be produced by one mold injection, according to the production first It can reduce the mold design cost, fix it with bolts and nuts provided on both sides in construction, and allow the size of the connection part of the double wall pipe to be variable with respect to the circumference for the unstable double wall pipe. By doing so, not only stable connection construction can be performed but also the effect of being able to replace only the corresponding tube by simply separating the joint tube during maintenance.

Claims (5)

In the joint pipe 10 for interconnecting the double wall pipe (1), The fitting pipe 10 has fitting protrusions 12-1 and 14-1 and fitting jaws 12-2 and 14-2 corresponding to the left and right joint surfaces with respect to the connection direction in which the double wall pipe 1 is connected. Coupling pieces 12-3 and 14-3 having through holes 12a and 14a formed on the side surfaces of which the fitting protrusions 12-1 and 14-1 and the fitting jaws 12-2 and 14-2 are formed. A plurality of joint tubes 12 and 14 protruding from the body, A water stop member 16 inserted between the fitting protrusions 12-1 and 14-1 of the fitting pipe bodies 12 and 14 and the fitting jaw portions 12-2 and 14-2; Split joints comprising a bolt 18 and a nut 19 fastened to and installed in the through holes 12a and 14a of the coupling pieces 12-3 and 14-3 of the joint pipe bodies 12 and 14. tube. According to claim 1, wherein the fitting portion (12-1, 14-1) and the fitting jaw portion (12-2, 14-2) with respect to the diameter of the plurality of joint pipe body (12, 14) corresponding to each other up and down Split type joint pipe, characterized in that formed in the circumferential direction. The method of claim 1, wherein the plurality of joint bodies (12,14) is a single injection molded product to rotate another joint tube 180 ° relative to one of the joint bodies (12,14) to form a joint tube Split joint pipes. A split joint according to claim 1, characterized in that the joint bodies (12,14) are formed in an elbow shape. 2. The split joint pipe according to claim 1, wherein the joint pipe bodies (12, 14) are formed in a T-shape.