KR100641740B1 - Spiral pipe for medium and large standard sewer pipe and its manufacturing device in civil engineering and road construction - Google Patents

Abstract

The present invention relates to a spiral pipe for medium and large-scale drainage pipes buried underground in road construction.

In general, various devices have been provided to reinforce the durability against earth pressure and lubrication during the long-term use of underground laying, but the synthetic resin spiral pipes have been used in the spiral hole reinforcing hollow tools. In case of intensive load, it may be damaged in the spiral direction of spiral winding. Also, it is formed by reinforcement hollow part and fused together both side walls of spiral wound reinforcement hollow part, or it is used underground for drainage pipe. In order to reinforce the external pressure according to the size of the product in the medium and large standards, the product of the above-described reinforcing hollow sphere having a two-layer structure in cross section is actually a configuration in which the component of the reinforcing structure provides the external pressure reinforcement. It has been widely used for practicality to provide firmness against earth pressure.

Here, to maintain a certain thickness for external pressure reinforcement and robustness reinforcement for medium and large standards, in the present invention, the spiral tube 20 formed of a two-layer structure that is divided into two equal thicknesses and integrally overlapped with each other inward and outward. In, while bending the outer surface 31 of the hollow sphere 30 formed to the outer side in the spiral winding direction at a bending portion 37 while maintaining a certain interval in the integral with the intermediate wall 36 to the melting point 34 As an invention configured by integrally forming a support wall 24 integrally formed between the inner wall 25 and the intermediate wall 36 to form the auxiliary hollow ball 26 on both sides of the hollow ball 29 formed inwardly, It is a spiral tube 20 provided to facilitate the formation of the bent portion 37 and the fusion point 34 during molding, constituting a reinforcing structure formed of the support wall 24 and the bent portion 37, It provides the effect of durability and external pressure reinforcement when it is used underground for long time use. In the manufacturing apparatus according to the present invention, the inlet 42 and the recess 44 for the curved portion 40 are formed in the cooling pipe 41 to form the support wall 24 and the bent portion 37 by fusion. The invention is an invention in which the point 34 is integrally molded to the intermediate wall 36, and the invention is thus contemplated.

Spiral tube, hollow part, support wall, bend part, fusion point, intermediate wall, incision part, groove part,

Description

Spiral pipe for medium and large size sewer pipes and its manufacturing apparatus in civil engineering and road construction

1 is a partial perspective view showing a spiral tube as a main part of the present invention;

FIG. 2 is a partially enlarged cross-sectional view of the main portion in FIG.

3 is a cross-sectional view taken along the line A-A in FIG.

4 is a partially enlarged cross-sectional view of the embodiment of the main portion in FIG.

FIG. 5 is a partially enlarged cross-sectional view of Embodiment 1 of the main part in FIG. 3; FIG.

Fig. 6 is a partially enlarged cross sectional view of a second embodiment of the main part in Fig. 3;

Fig. 7 is a perspective view of main parts of the manufacturing apparatus for the spiral tube of the present invention.

Figure 8 is a perspective view of the main portion in Figure 7

9 is a cross-sectional view taken along the line B-B and B'-B 'in FIG.

Figure 10 is a perspective view of the main portion in Figure 7

Fig. 11 is a perspective view of main parts of the embodiment in Fig. 7;

12 is a perspective view of main parts in FIG.

FIG. 13 is a cross-sectional view taken along the line C-C in FIG.

<Description of Major Symbols in Drawing>

20. Spiral tube 23. Support wall 25. Inner wall 26, 26 '. Secondary hollow sphere

29. Inner hollow tool 30'30 ' External hollow tool 31. External face 34. Fusion point

36. Intermediate wall 37. Bends 42. Incisions 44. Grooves

45. Outer wall surface 46. Outer bending portion 47. Inner surface 48. Fusion table

50. Cooling pipe 51. Incision 53. Curved part 54. Incision

55,55 '. Bending recess 58. Bending gear 68,68 '. Fixed pipe

The present invention relates to a heavy-duty sewage pipe for heavy and medium-sized sewer pipe used for a long time by laying underground in civil engineering and road construction, and a manufacturing apparatus according to the same.

Spiral pipes for sewer pipes, which are used as drainage pipes used in areas where high-load vehicles such as roads or structures such as high-load buildings are installed due to the construction of urban areas, are used to reinforce earth pressure and lubricity for long-term use. It is a reality that requires the use of the product.

In addition, in order to provide the required spiral pipes for the sewer pipes, a spiral pipe of various structures is provided by a product which directly integrates both side walls of the hollow portion that is spiral wound and is reinforced with both side walls, etc. While forming a sphere, the upper and lower side portions constituting the inner and outer walls were damaged in the circumferential cross section spirally wound according to the condition due to the lack of durability due to the external soil pressure and the rotational pressure.

In addition, to solve this problem, there was provided a product in which a corrugated support and a support belt are integrally formed in a spiral recess formed by forming a predetermined interval between the reinforcing support parts and the spiral winding circuit. Next, since the corrugated support and the support belt are molded secondly, the forming process of the reinforcement support is shrunk by cooling in the extrusion process of synthetic resin, which is the main raw material of the spiral tube, so it is economical to manufacture the reinforcement support. This is a reality that requires a reinforced structure of durability against earth pressure.

In addition, the spiral pipes for drainage pipes actually used in the field are thickened according to the usage specifications. Especially, in the case of a large standard, the spiral pipes provide a certain thickness. It is a reality that the limit of external pressure reinforcement occurs when it is buried underground and used stably.

In addition, because the sewage and the like flows through the inner space of the spiral pipe for the drainage pipe, the inner wall is abrasion is formed accordingly, there are many problems in long-term use.

In order to solve this problem, the hollow spheres are formed on the upper and lower sides of the reinforcing support portion in which the hollow sphere is omitted, and the intermediate portions are joined to each other to form a support unit integrally so that both sides of the hollow spheres are formed on the upper and lower sides. Although a product that is helically bonded by fusion of the wall surface has been provided, it is a reality that a perfect reinforcing spiral tube that is more practical, yet effective, durable and economically reconsidered is required.

In addition, the apparatus for producing a spiral pipe for sewer pipes used as the drainage pipe provided in the above description, by assembling the cooling pipe fixed in the die of the extruder to be interlocked with the outer surface of the rotary roller of the molding machine, the tube extruded from the die There has been provided an apparatus for manufacturing a spiral tube in which a tube is formed by fusion welding of both side walls of a hollow sphere formed by a cooling process while forming a spiral winding in a molding machine, but this is for the construction of an intermediate wall supporting both side walls of the hollow sphere. Since there is no structure of the cooling pipe, it is desirable to provide a cooling pipe in which the intermediate wall protruding into the hollow section is integrally formed on both side walls during molding.

Spiral pipes for medium and large-sized drainage pipes that are used for a long time by laying underground in areas where earth pressure and rolling pressure, such as civil engineering and roads, act as high loads, have a constant thickness to reinforce wear resistance and external pressure of the inner wall by drainage flowing inside. It is provided while maintaining, wherein the predetermined thickness is divided into two halves, while forming a support wall on the inner side hollow sphere to reinforce the rigidity, and intermittently bending the outer side of the outer hollow sphere to fuse integrally to the intermediate wall to strengthen the reinforcing structure. In the manufacturing apparatus according to the above, by providing a manufacturing apparatus configured to manufacture the support wall and the bending structure and the fusion point, a spiral tube and a manufacturing apparatus superior to the conventional reinforcing spiral tube provided in the prior art By providing a, it is an invention that provides durability against earth pressure and rotation pressure caused by the passage of a vehicle such as a road.

In addition, the apparatus for producing a spiral pipe for drainage pipe provided in the present invention is to provide a cooling pipe configured to protrude in the direction of the hollow section from both side wall surface of the hollow sphere to form the intermediate wall integrally during molding, Accordingly, the outer wall is bent to fix the fusion point to the middle wall.

The present invention forms a hollow sphere formed by both side walls and inner and outer walls integrally with both side walls in a spiral tube integrated with a spiral winding, and constitutes an intermediate wall protruding from the middle portion of both side walls so that the hollow spheres are moved up and down. It is formed on both sides, and the outer wall is bent intermittently in the spiral winding direction to be integrally fixed to the middle wall as a fusion point. A spiral pipe for reinforced drainage pipe is also provided, and the manufacturing apparatus thereof is bent while forming a cutout and a bending groove for forming an intermediate wall and a support wall in a spiral pipe described above in a cooling pipe assembled in a conventional extruder and a molding machine. It is an invention for a feature to provide a manufacturing apparatus which is configured to be integrally molded in an intermediate layer with a fusion point by bending an outer wall with a gear.

In addition, as an embodiment of the above-described invention, the outer hollow sphere integrated with the outer wall may be integrally configured with the outer circumference but fixedly fixed to the inner wall of the outer reinforcement while being adapted to the fusion zone at the bent portion and the fusion point. It is an invention for the feature to provide a three-layer reinforcement spiral pipe spiral pipe for large-scale drainage pipe.

Accordingly, the present invention will be described in detail with reference to the accompanying drawings,

1 is a partial perspective view showing a spiral tube as a main portion of the present invention, FIG. 2 is a partially enlarged cross-sectional view of the recessed portion in FIG. 1, FIG. 3 is a partially enlarged cross-sectional view of an embodiment of the recessed portion in FIG. 1 is a cross-sectional view taken along line AA, and FIG. 5 is a partially enlarged sectional view of Embodiment 1 of the main part in FIG. 3, and FIG. 6 is a partially enlarged sectional view of Embodiment 1 of the main part in FIG.

That is, in the present invention, as shown in Figs. 1 and 2, the conventional medium and large are formed by integrally fusion of both side wall surfaces 24 that form the hollow spheres 29 formed in the spiral winding direction in the longitudinal direction. In the spiral pipe 20 for the standard drainage pipe maintains a constant thickness according to the size of the product, thereby forming the inner and outer walls 25, 31 while maintaining both side walls 24 of the hollow sphere 29 as it is Integrating the bent portion 37 and the fusion point 34 into the intermediate wall 36 intermittently while forming the intermediate wall 36 dividing the thickness into two parts while maintaining a constant distance in the spiral winding direction of the outer wall 31. In the case of long-term use of the underground buried in the road, etc., the bending strength of both side walls 24, which provide reinforcement structure against external pressure and rotation pressure, is provided to the intermediate wall 36 and the bent part 37 The invention is provided by reinforcing to the adhesion point 36.

In addition, in order to reinforce the external pressure and the rolling pressure, the support wall 23 is formed between the inner wall 25 and the intermediate wall 36 in the inner hollow sphere 29 shown in FIG. The invention is provided by reinforcing the bending strength of both side walls 24 against external pressure and rotational pressure due to underground embedding by forming and supporting the secondary hollow tools 26 and 26 '.

In addition, in the present invention for the first embodiment of the outer wall 31 shown in Figure 4, as shown in Figure 5 is formed with a bent portion 37 and the melting point 34 to provide external pressure reinforcement As an invention provided by constituting the outer wall surface 45 integrally in the spiral winding direction to the outer circumferential surface of the outer wall 31, the invention provides external pressure and rotation pressure as described above.

In addition, in the present invention, in order to provide a reinforcing structure particularly for super-standard, as a description of the second embodiment of the outer wall 31 shown in FIG. 4, as shown in FIG. The outer circumferential surface of the outer hollow sphere 30 'is formed intermittently by integrally constituting the outer hollow sphere 30' in the spiral winding direction to the outer circumferential surface of the outer wall 31 formed by the point 34 to provide external pressure reinforcement. The invention is provided by integrally fixing the fusion point 34 'formed on the outer bent portion 46 by bending to the inner circumferential surface of the outer hollow sphere 30', as described above. to be.

Here, in the spiral pipe 20 for drainage pipes described above for durability and by the reinforcement of the fusion zone 48 for long-term use by the flow of drainage flowing through the inner space of the inner wall 25, the inner The inner wall surface 45 'is provided in an inscribed manner on the side wall 25.

Then, the thickness of the outer hollow sphere 30 ′ described above is about the middle of the thickness between the inner and outer walls 25 and 31 that are integrated in this way, so that the thickness of the outer hollow sphere 30 ′ is generally divided into three equal parts.

In addition, as a description of the main part of the present invention, based on the accompanying drawings, a description of the manufacturing apparatus of the spiral pipe for medium and large-scale drainage pipes used in the region where the external pressure and the rolling pressure, such as the road provided by the present invention acts Specifically, Fig. 7 is a perspective view of main parts of the manufacturing apparatus for the spiral tube of the present invention, Fig. 8 is a perspective view of the main part of the cooling pipe shown in Fig. 7, Fig. 9 is a sectional view taken along line BB in Fig. 8, Fig. 10 is an enlarged perspective view of an essential part of the bending gear shown in FIG. 7, and FIG. 11 is a perspective view of an essential part of an embodiment of an auxiliary cooling pipe in the manufacturing apparatus shown in FIG. 7, and FIG. 13 is a cross-sectional view taken along line CC in FIG.

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That is, in the cooling pipe 50 is fixed to the die 62 of the extruder 61 used in the related art, while being assembled to the rotary roller 64 of the molding machine 63, the spiral pipe for drainage pipe provided in the present invention ( In the spiral pipe manufacturing apparatus assembled in a fixed manner from the die of the extruder to the rotating roller of the molding machine as shown in Figs. 7 to 10 provided in 20), the hollow sphere described above is the die of the extruder 61; Extruded along the cooling pipe 50 fixed at 62 to protrude in the direction of the hollow sphere from both side wall surface 24 of the hollow sphere so that the intermediate wall 36 is formed into the inner and outer hollow spheres 29 and 30 by molding. According to the body 65 and the curved portion 53 of the cooling pipe 50 to form a cutout portion 53 that is equally separated in both sides in the thickness direction of the cooling pipe 50 separated cooling pipe separated inward and outward 50 ', and the body 65 is attached to the die 62. And gives to form a fixed pipe 68 to fit the hose 70 for supplying cooling water to the cooling pipe 50, the separation is easy to insert into the inner space of each of the cooling pipe 50 of the separation.

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Here, the configuration of the cutout 53 to be described is that the molten resin in which the synthetic resin is melted and extruded in the body 65 of the cooling pipe 50 assembled in the die 62 is pressed in the inner section of the extrusion opening for extrusion. As the molten resin is inserted into the inner gap of the cutout 53 by the output, the tube for the intermediate wall 36 is formed to be extruded.

In addition, in the outer separation pipe 50 'of the inner and outer separation cooling pipe 50' separated by the cutout 53, the tube is extruded by the bending gear 58 as shown in FIG. While bending along the outer wall 31, the bending groove 55 is formed into a bent portion 37 and the fusion point 34 integrally formed on the intermediate wall 36, the body 65 of the cooling pipe 50 At the curved portion 53 is configured.

Here, by forming the inclined surfaces symmetrically with respect to each other as shown in Figure 9 the outer separation pipe (50 ') forming the provided bent groove 55 is configured to facilitate the rotational molding of the bending gear (58).

In addition, the inner hollow sphere 29 described above protrudes between the inner wall 25 and the intermediate wall 36 to turn the inner hollow sphere 29 into the left and right auxiliary hollow spheres (26, 26 '). In order to form the supporting wall 23 to be formed, the inner and outer separation pipes 50 'from the inner and outer separation cooling pipes 50' and 50 'separated from each other by the cut portions 54 are formed. In the body 65 of the invention is provided by forming an incision 51 to separate evenly in both sides in the width direction to the inner separation pipe (50 ').

In addition, as a description of the embodiment of the present invention, as shown in FIG. 6 described above, the outer wall 31 is bent in the spiral tube for ultra-standard size to form an outer wall (bending part 37 and a melting point 34) ( The outer circumferential surface 30 'of the outer circumferential surface 31' is integrally integrated with the outer circumferential surface, and the outer circumferential surface of the outer hollow sphere 30 is bent to integrate the fusion point 34 'on the inner circumferential surface to provide a spiral tube for ultra-standard size. As a description of the manufacturing apparatus for the above, as shown in Figs. 11 to 13, in the auxiliary die 62 'separate from the die 62 described above, it is fixed in the die 62' with the fixing pipe 68 '. In the body 65 'of the auxiliary cooling pipe 69' which is formed, the grooves 55 'are bent evenly in the width direction according to the curved portion 53', and a separate bending gear 58 'is bent. By fitting to the recess 55 ', bending the tube extruded from the auxiliary die 62', and In the process as described above, the invention is to provide a three-dimensional spiral tube of a super-standard structure to be integrally fixed to the inner peripheral surface by the outer bent portion 46 and the fusion point 34 '.

Here, the thickness of the auxiliary cooling pipe 69 'to be described is provided in the middle as compared to the thickness of the cooling pipe 50 described above, so that the reinforcement spiral pipe for the drain pipe can be manufactured as a whole.

According to the present invention, when a heavy load such as a road passes, a spiral wall is subjected to underground subsidence or unbalanced load in the ground, the intermediate wall is integrally formed on both sides of the hollow wall, which is considered to be a weak point, and the support wall is inward. While forming the hollow sphere to bend the outer wall and fix it at the fusion point, it provides a helix tube for medium and large size. The present invention provides a spiral pipe for drainage pipes for reinforcing soil pressure and lubrication pressure and a manufacturing apparatus therefor.

Claims (5)

Spiral pipes for medium and large-sized drainage pipes formed by forming hollow spheres formed of inner and outer walls 25 and 31 and both side walls 24 into spiral windings and integrally formed on both side walls 24 with fusion bars 48. 20, the inner and outer hollow spheres 29 and 30 are formed as intermediate walls 36 protruding from both side wall surfaces 24, and the outer wall 31 is bent intermittently along the spiral winding direction 37. Spiral pipe for medium and large-scale sewer pipes in civil engineering and road construction, characterized in that the fusion point 34 is formed by integrally provided on the intermediate wall 36. The method of claim 1, The inner wall 25 is formed by protruding the support wall 23 from the inner wall 25 and the intermediate wall 36, and intermittently forming the fusion point 34 formed of the bent portion 37. Spiral pipe for medium and large-scale sewer pipe in civil engineering and road construction, characterized in that the outer wall surface 45 is integrally provided on the outer peripheral surface of the outer wall (31) constituting integrally. The method of claim 1, The outer hollow ball 30 'is circumscribed to the outer circumferential surface of the outer wall 31 which forms the fusion point 34 formed intermittently by the bent portion 37 in the intermediate wall 36, and the outer hollow ball The outer peripheral surface of the 30 'is intermittently bent to fix the fusion point 34' formed on the outer bent portion 46 integrally with the inner peripheral surface of the outer hollow sphere 30, and to the inner wall 25 Spiral pipe for medium and large size sewer pipes in civil engineering and road construction, characterized in that the wall surface 45 'is provided by integrating internally. While being assembled to the outer surface of the rotary roller 64 of the molding machine 63, which is connected to the die 62 of the extruder 61, the curved portion 53 connected to the body 65 on one side and the fixed pipe (on the other side) In the apparatus for manufacturing the spiral pipe 20 for drainage pipes, in which the cooling pipe 50 formed of the assembly 68 is assembled, and the tube extruded from the die 62 is manufactured in a spiral winding, the body of the cooling pipe 50 Incisions 51 and 54 are formed on the 65 and the curved portion 53 evenly in the width and thickness directions to form separate cooling pipes 50 'and 50 "on the inner and outer portions, and the outer side. The bending groove 55 for bending the tube with the bending gear 58 is formed in the cooling pipe 50 "at the site, and each fixed pipe is matched with the separated cooling pipes 50 'and 50". Spiral pipe manufacturing apparatus for medium and large-scale sewer pipes in civil engineering and road construction, characterized in that formed by integrally forming (68). The auxiliary cooling pipe (69 ') is formed separately from the cooling pipe (50), which is fixed to the auxiliary die (62'), and is curved with the body (65 ') of the auxiliary cooling pipe (69'). Spiral pipe manufacturing apparatus for medium and large-scale sewer pipes in civil engineering and road construction, characterized in that formed by equally forming the bent groove (55 ') in the width direction in the portion (53').

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