KR100334976B1 - Pvc sewer pipe - Google Patents

Abstract

The present invention relates to a ring-assembled adhesive sewage pipe used for a large sewage pipe, for example, and to provide a ring-assembled adhesive sewage pipe that can be easily manufactured and has a high-strength structure.

The ring assembly adhesive sewage pipe according to the present invention has a first coupling rib 11 bent in an L shape upward from the bottom along one side and a second bent L shape downward from the top along the other side. The square pipe 1 having the coupling ribs 12 is wound so that the first coupling ribs 11 and the second coupling ribs 12 of two unit windings 15 and 15 adjacent to each other are coupled to each other. It is made by bonding. It is preferable that the square pipe 1 consists of polyvinyl chloride. Therefore, since the double pipe is completed by simply winding the square pipe 1, productivity and cost reduction can be achieved, and the first coupling ribs 11 and the first two ribs 15 and 15 corresponding to each other correspond to each other. Durability is improved because the state that is firmly coupled by the two coupling ribs 12 is maintained.

Description

Ring Assembly Polyvinyl Chloride Sewage Pipe {PVC SEWER PIPE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an annular bonded sewage pipe having a large diameter, such as a sewage pipe, and more particularly, an annular bonded sewage pipe that can be made simply by winding a pipe having a square or curved profile.

Double pipes with a small diameter, such as water pipes, usually have a structure in which the outer pipe is spirally wound on the outside of the inner pipe or a structure in which the inner pipe is inserted into the outer pipe and joined to each other, but due to limitations in processing methods such as extrusion, for example, 1,000 It is difficult to make a double tube having a large diameter of mm or more into the above structure.

Therefore, conventionally, as shown in Figures 4 and 5, while rolling the square pipe (9) made of polyethylene while inserting the binder film 93 between two adjacent number of windings (91, 91), rolling The double tube having a large diameter was manufactured by joining the unit windings 91 to each other. The binder film 93 is mainly made of polyethylene, which is the same material as the pipe, and is of strip type or T-shaped type as shown in FIG. 5.

However, in the conventional double pipe as described above, the square pipe is made of polyethylene even though one side of the square pipe forms an inner wall of the double pipe and the opposite side of the double pipe forms an outer wall of the double pipe. It may not have a high strength structure, for example, when it is used for sewerage, sewage may leak and soil contamination may occur. Furthermore, since the corresponding side surfaces of two adjacent unit windings of the square pipe are joined by a binder film, the strength of the double pipe is further lowered especially at the joint portion thereof. In addition, the binder film is required as well as made of polyethylene, and as the rolling process is additionally added, the productivity is lowered and the cost is increased.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a ring-assembled adhesive sewage pipe that can be easily manufactured and has a high-strength structure.

1 is a partial perspective view showing a pipe constituting the ring-assembled adhesive PVC sewer pipe according to the present invention.

Figure 2 is a perspective view showing a ring assembly adhesive PVC sewer pipe according to the present invention.

3A is a cross-sectional view taken along the line III-III of FIG. 2.

Figure 3b is a cross-sectional view showing a modification of the ring-assembled adhesive PVC sewer pipe according to the present invention.

Figure 4 is a perspective view showing a conventional sewer pipe of the double pipe type.

5 is a cross-sectional view taken along the line VV of FIG. 4.

Figure 6 is a perspective view showing a cross-sectional profile of another embodiment of the ring-assembled adhesive PVC sewer pipe according to the present invention.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 6.

<Explanation of symbols for main parts of the drawings>

1: square pipe, 11: first coupling rib,

12: 2nd combined rib, 15: unit winding

Ring assembly adhesive sewage pipe according to the present invention in order to achieve the above object, having a first coupling rib bent in an L shape upward from the bottom along one side, and also bent in an L shape downward from the top along the other side The square pipe having the second coupling ribs is wound, and the first coupling ribs and the second coupling ribs corresponding to each other in two unit windings adjacent to each other are joined to each other and joined.

According to the ring-assembled adhesive sewage pipe of the present invention configured as described above, when the square pipe is wound, the bent portion of the first coupling rib is inserted into the insertion space of the second coupling rib, and conversely, the bent portion of the second coupling rib is coupled to the first coupling rib. Since the rib is inserted into the insertion space of the rib, the first coupling rib and the second coupling rib are automatically coupled without adding a separate process. Therefore, when the first coupling ribs and the second coupling ribs joined thereto are bonded to each other, durability of the first coupling rib and the second coupling rib can be maintained firmly.

Other features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

As shown in Fig. 1, reference numeral 1 is a hollow hollow pipe, which has a first coupling rib 11 bent in an L shape from the bottom to the upper side along one side, and the other side of the other side of the surface. It has a second coupling rib 12 bent in an L-shape from the top along the side. The square pipe (1) is preferably made of polyvinyl chloride (PVC) according to one feature of the present invention.

Ring-assembled adhesive sewage pipe according to the present invention, as shown in Figure 2 and 3a, the square pipe (1) is wound while being extruded, two unit winding number of the adjacent square pipe (1) of each wound ( The first coupling ribs 11 and the second coupling ribs 12 corresponding to each other of the first and second coupling ribs 12 and 15 are coupled to each other and the coupling surfaces thereof are bonded to each other so that the inner surface of the square pipe 1 acts as an inner wall and is also square. The outer surface of the pipe 1 can take the form of a double tube by acting as an outer wall. That is, the bent portion of the first coupling rib 11 is inserted into the insertion space by the bent portion of the second coupling rib 12, and the bent portion of the second coupling rib 12 is caused by the bent portion of the first coupling rib 11. The first coupling rib 11 and the second coupling rib 12 are coupled by being inserted into the insertion space.

A binder film may be further attached or an adhesive may be applied to the inner and outer surfaces of the curved portions of the coupling ribs 11 and 12 so that the shape of the double pipe may be maintained. As shown in FIG. 3B, the ends of the coupling ribs and the coupling ribs ( By forming the engaging projection (11a) and the concave groove (12a) respectively on the inner surface of the insertion space by the bent portion of 11) by the engaging projection (11a) is coupled to the engaging groove (12a) when inserted into the insertion space of the coupling ribs The bonding force can be further increased. When the square pipe 1 is wound, the two coupling ribs 11 and 12 corresponding to each other of the two adjacent unit windings 15 and 15 are automatically bonded to each other, thereby directly hardening the joint, so that the coupling ribs 11 and 12 are coupled to each other. Can be maintained firmly.

According to the ring-assembled adhesive sewage pipe of the present invention configured as described above, by forming a rivet rib that mutually couples to the joint portion of the double pipe winding method for the PVC material having excellent strength but relatively low molding ability and bonding ability to PE. It solves the weaknesses of bonding strength and bonding strength of PVC, and utilizes strength characteristics. According to the present invention, since a double pipe is formed simply by winding a square pipe 1 having a predetermined coupling rib coupled to both sides by winding, a double pipe can be easily manufactured, and coupling ribs 11 and 12 are provided. The durability is also shaped because it remains firmly coupled. In addition, the ring-assembled adhesive sewage pipe according to the present invention may be used as a septic tank if the inlet and the outlet are formed in the necessary elements after blocking both openings in addition to being used as a pipe which should have a large diameter such as for sewage. It can be molded much simpler than the conventional method of manufacturing the RFLP septic tank.

6 and 7 is another embodiment of the ring-assembled adhesive PVC sewage pipe according to the present invention, unlike the sewage pipe of the above-described embodiment is made by winding a pipe having a rectangular profile, the coupling recess is an example having a round profile It is shown. In this embodiment, the coupling rib 11 is coupled to the round coupling groove 12 during winding to form a double pipe having a cross section as shown in FIG. 7. At the end of the coupling rib 11 and the inner circumferential surface of the coupling groove, the engaging protrusion 11a and the blackening groove 12a are respectively formed to be coupled to each other, thereby increasing the coupling force.

In the ring-assembled adhesive sewage pipe according to the present invention configured as described above, the coupling rib is wound on the outer circumferential surface on both sides of the pipe having a sapphire pipe (1) or a coupling rib of round profile having a ring projecting in a staggered direction. If only double pipes with increased bonding force is completed, productivity can be improved and cost can be reduced. In addition, a state in which two adjacent unit turns 15 and 15 are firmly coupled by the first coupling ribs 11 and the second coupling ribs 12 corresponding to each other can be maintained and the pipe 1 is made of polyvinyl chloride. By being made of chloride, the strength is high and the durability is improved.

Claims (3)

Square pipe (1) having a first coupling rib 11 bent in an L shape upward from the bottom along one side and a second coupling rib 12 bent in an L shape downward from the top along the other side (1). ) Is wound, ring assembly adhesive type, characterized in that the first coupling rib 11 and the second coupling rib 12 corresponding to each other of the two unit windings (15, 15) adjacent to each other are bonded to each other and joined PVC sewer pipe. The ring-assembled adhesive PVC sewer pipe according to claim 1, wherein the square pipe (1) is made of polyvinyl chloride. PVC having a first coupling rib 11 bent vertically upward from one end of the horizontal plate portion, and having a second coupling rib 12 protruding vertically upward from the other end of the horizontal plate portion and curving bent convexly from the top. The extruded plate body is wound with a predetermined one-way curvature, wherein the first coupling ribs 11 and the second coupling ribs 12 adjacent to each other are formed by bonding and bonding each other, characterized in that the ring assembly adhesive PVC sewer pipe.