CN211574432U

CN211574432U - Outer polygon reinforcing corrugated pipe

Info

Publication number: CN211574432U
Application number: CN201922438347.5U
Authority: CN
Inventors: 陈永委
Original assignee: Guangdong Tongsu Pipeline Co ltd
Current assignee: Guangdong Tongsu Pipeline Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-25
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an outer polygon reinforcing bellows, including body, socket and bellmouth, the body includes the body and establishes a plurality of polygon rings protruding outside this body, and the cross section of body is ring shape, and the socket is located the one end of body, and the cross section of socket is circular, and the bellmouth is located the other end of body, and the cross section of bellmouth is circular. The utility model discloses an outer polygon reinforcing bellows has ring rigidity height, the convenient advantage of pipe connection.

Description

Outer polygon reinforcing corrugated pipe

Technical Field

The utility model relates to a plastic conduit technical field, concretely relates to outer polygon reinforcing bellows.

Background

The double-wall plastic corrugated pipe has an outer wall with an annular structure and a smooth cylindrical inner wall, and is widely applied to buried drainage pipelines and the like due to excellent performance of the double-wall plastic corrugated pipe. The double-wall corrugated pipe is developed and developed successfully in Germany in the beginning of the 80 s, and the popularization and application of the double-wall corrugated pipe are in an ascending situation after more than ten years of development and improvement, but due to the structural characteristics of the pipe, namely the circular shape, the double-wall corrugated pipe has the problems of difficult installation, potential safety hazard and the like in the aspects of installation and use durability.

In order to solve the above problems, patent nos.: CN201720489818.3 proposes a double-wall corrugated pipe with octagonal outer and inner walls and cylindrical inner wall, which changes the outer wall of the conventional annular structure into a polygonal structure to increase the contact area between the outer surface of the pipeline and the ground, so as to solve the above existing problems.

However, according to the double-wall corrugated pipe with the outer octagon and the inner circle disclosed in the patent document, the pipes are difficult to be connected with each other due to the structure of the outer octagon, and the outer octagon is easy to crack at the connection part of the sides during the expansion process, so that the pipes cannot be connected with each other in the conventional way of pipe orifice expansion due to the structure of the outer octagon and the inner circle.

Disclosure of Invention

The utility model provides a ring rigidity is high, the convenient outer polygon reinforcing bellows of pipe connection.

In order to achieve the purpose, the outer polygonal reinforced corrugated pipe comprises a pipe body, a socket and a socket, wherein the pipe body comprises a body and a plurality of polygonal circular ring bulges arranged outside the body, the cross section of the body is in a circular ring shape, the socket is positioned at one end of the pipe body, the cross section of the socket is in a circular shape, the socket is positioned at the other end of the body, and the cross section of the socket is in a circular shape.

Above setting, utilize bellows forming die to form ring arch or smooth outer wall at the bellied both ends of polygon ring that have, utilize ring arch or smooth outer wall to form socket and bellmouth to two outer polygon reinforcing bellows do not have the plug-in connection of position restriction in radial direction, like this, not only solved the bellied problem that is difficult to the butt joint grafting of prior art polygon ring, solved the poor technical problem of outer polygon reinforcing bellows ring rigidity moreover.

Further, the outer wall of the socket is a smooth outer wall.

Furthermore, the outer wall of the socket is provided with more than one circular ring bulge. Therefore, the ring stiffness of the outer polygonal reinforced corrugated pipe can be improved, and the sealing ring can be conveniently placed between the adjacent circular ring bulges so as to improve the sealing performance of the outer polygonal reinforced corrugated pipe after connection.

Further, the outer wall of the socket is a smooth outer wall.

Furthermore, the outer wall of the bellmouth is provided with a circular ring bulge. Thus, the ring stiffness of the outer polygonal reinforced corrugated pipe can be improved.

Further, the protrusions of the polygonal ring are equally spaced. .

Drawings

Fig. 1 is a schematic structural view of an outer polygonal reinforced corrugated pipe according to the present invention.

Fig. 2 is a schematic view of the corresponding external polygonal reinforced corrugated pipe of the present invention.

Fig. 3 is a sectional view taken along line a-a of fig. 2.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 6 is a cross-sectional view taken along line D-D of fig. 2.

Fig. 7 is a schematic diagram of another embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-6, a process for forming an outer polygonal reinforced corrugated pipe comprises the following steps:

1) the extruder extrudes the pipe material in a molten state from the die head, and the pipe material extruded from the die head enters the corrugated pipe forming die in the shape of a circular pipe. The die head is circular, so that a circular pipe can be formed.

2) The ring tubular product passes through bellows forming die shaping, and when the ring tubular product was fashioned in bellows forming die, it has a plurality of polygon ring arch 2 to make the shaping of ring tubular product outer wall through the continuous polygon mould module more than three, and the circular mould module through being located the at least one end of continuous polygon mould module makes the at least one end outer wall shaping that has the bellied ring tubular product of polygon ring have ring arch 3 or smooth outer wall.

3) And outputting and cooling the continuous pipe formed by the corrugated pipe forming die.

4) After the pipe is cooled, the pipe is cut off in the middle of the outer wall provided with the circular ring bulge or the smooth outer wall to form a pipe unit, one end of the pipe unit is used as a socket, and the other end of the pipe unit forms a socket through a subsequent process, so that the pipe unit forms an outer polygonal reinforced corrugated pipe by the pipe body with the polygonal circular ring bulge, the socket and the socket.

The outer polygonal reinforced corrugated pipe obtained according to the forming process of the outer polygonal reinforced corrugated pipe comprises a pipe body 10, a socket 20 and a socket 30, wherein the pipe body 10 comprises a body 1 and a plurality of polygonal annular protrusions 2 arranged outside the body, the cross section of the body 1 is circular, in the embodiment, the polygonal annular protrusions 2 are regular polygons larger than three sides, and the socket 20 is located at one end of the body 1; the socket 30 is located at the other end of the body 1, and the outer wall of the socket 30 may be smooth wall, as shown in fig. 7, or may be provided with a circular protrusion, and the cross section of the socket is circular, so that the socket 20 can be inserted into the socket 30 conveniently, and the socket can be formed conveniently. When the outer wall of the socket and the outer wall of the socket are provided with the annular protrusions, the rigidity of the ring can be improved, and a sealing ring can be placed between the annular protrusions at one end of the socket so as to improve the sealing performance.

In the process, the molten pipe body material is extruded from the die head through the extruder, and enters the corrugated pipe forming die in an annular pipe shape; the outer wall of the circular tube is provided with a polygonal circular ring bulge formed by a polygonal mould module; forming a circular convex or smooth outer wall on the outer wall of the circular pipe by arranging the die modules; cooling the pipe body, cutting the pipe material at the middle part provided with the circular ring bulge or the smooth outer wall to form a pipe material unit, arranging and cutting the pipe material unit according to a mould module of a corrugated pipe forming mould, and then forming a socket through a subsequent process to produce the outer polygonal reinforced corrugated pipe consisting of the pipe body with the polygonal circular ring bulge, the socket and the socket. In the invention, the annular bulges 3 or the smooth outer walls are formed at the two ends with the polygonal annular bulges 2 by utilizing the corrugated pipe forming die, and the sockets are formed by utilizing the annular bulges 3 or the smooth outer walls, so that the two outer polygonal reinforced corrugated pipes can be conveniently connected in an inserting way without position limitation in the radial direction, thereby not only solving the problem that the polygonal annular bulges are difficult to butt-joint and insert in the prior art, but also solving the technical problem of poor rigidity of the outer polygonal reinforced corrugated pipe ring. Compared with the existing pipe structure with the circular section and two ends with the sockets and the sockets, the invention provides the structure with the body provided with the polygonal annular bulge and the sockets formed at the two ends.

Step 2) still include through the partial vacuum adsorption of circular mould module and will have the annular protruding 3 or the one end of the ring tubular product of smooth outer wall to be close to the shaping and have polygon annular protruding 2 one end of annular tubular product and become the bellmouth that the internal diameter is greater than the ring tubular product internal diameter, above setting up, just shaped the bellmouth before the shaping tubular product unit, can use through cutting off, consequently, reduced technology process, the cost is reduced, has improved efficiency.

And forming the socket 30 by the ring pipe with the ring bulge 3 or the smooth outer wall at the other end of the pipe unit through subsequent processes such as expansion of an expansion die and the like.

Claims

1. An outer polygon reinforcing corrugated pipe is characterized in that: including body, socket and bellmouth, the body includes the body and establishes a plurality of polygon ring archs outside this body, and the cross section of body is ring shape, and the socket is located the one end of body, and the cross section of socket is circular, and the bellmouth is located the other end of body, and the cross section of bellmouth is circular.

2. An external polygonal reinforced corrugated pipe according to claim 1, wherein: the outer wall of the socket is a smooth outer wall.

3. An external polygonal reinforced corrugated pipe according to claim 1, wherein: the outer wall of the socket is provided with more than one circular bulge.

4. An external polygonal reinforced corrugated pipe according to claim 1, 2 or 3, wherein: the outer wall of the bellmouth is a smooth outer wall.

5. An external polygonal reinforced corrugated pipe according to claim 1, 2 or 3, wherein: the outer wall of the bellmouth is provided with a circular ring bulge.

6. An external polygonal reinforced corrugated pipe according to claim 1, wherein: the protrusions of the polygonal ring are equally spaced.