WO2012034393A1 - 双平壁管带材的缠绕搭接结构及使用该结构的双平壁管 - Google Patents

双平壁管带材的缠绕搭接结构及使用该结构的双平壁管 Download PDF

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Publication number
WO2012034393A1
WO2012034393A1 PCT/CN2011/072294 CN2011072294W WO2012034393A1 WO 2012034393 A1 WO2012034393 A1 WO 2012034393A1 CN 2011072294 W CN2011072294 W CN 2011072294W WO 2012034393 A1 WO2012034393 A1 WO 2012034393A1
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Prior art keywords
connecting portion
wall
connection
plastic
double flat
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PCT/CN2011/072294
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English (en)
French (fr)
Inventor
郑能欢
杨春江
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华瀚科技有限公司
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Publication of WO2012034393A1 publication Critical patent/WO2012034393A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement

Definitions

  • the present invention relates to a pipe winding lap joint structure for manufacturing a pipe, and also relates to a pipe using the structure, and more particularly to a lap joint structure of a double flat wall pipe strip and a double using the same Flat wall tube. Background technique
  • the Chinese patent No. 200920110819. 8 discloses a "steel-plastic composite winding pipe", in which a reinforcing steel strip 3 is arranged in a profile 2 having a rectangular cross section, and the profile 2 is spirally wound into a pipe 1 .
  • the pipe with high ring stiffness is obtained to meet the ring stiffness requirements required for the heavy load of the underground pipe.
  • One of the technical problems to be solved by the present invention is to provide a winding and overlapping structure of a double flat wall tube strip, which overcomes the 'W'M coin 1 J 'm'B'" TO WiK 3 ⁇ 4 tt tW 5 feathers, food 3 ⁇ 4 w ⁇ defects.
  • the second technical problem to be solved by the present invention is to provide a double flat wall tube, which overcomes the weak bearing capacity of the side connecting structure when the existing double flat wall tube is wound and the tube is wound, and the winding device has a complicated structure. And other defects.
  • the technical solution adopted by the present invention to solve one of the technical problems is: constructing a winding lap joint structure of a double flat wall pipe strip, the double flat wall pipe strip comprising an inner layer plastic wall and an outer layer plastic a wall, an intermediate plastic layer and a reinforcing metal, the intermediate plastic layer being located between the inner plastic wall and the outer plastic wall, spaced along the length direction of the double flat tube strip, and the inner and outer plastic layers
  • the wall is integrally connected, and the reinforcing metal length is disposed in the intermediate plastic layer along the length direction of the double flat wall tube or in the intermediate plastic layer and the inner plastic wall and the outer plastic layer In the wall;
  • the feature is ten, including the connecting portion A, the connecting portion B, the connecting portion C and the connecting portion D;
  • the connecting portion A extends from a first side sidewall of the cross-section of the double flat wall tube along a lateral direction of the side wall, the connecting portion A including an outer surface of the inner plastic wall
  • the connecting portion B includes an outer connecting surface B, and the outer connecting surface B is disposed above the intermediate plastic layer of the first side and includes a connection height difference between the outer surface of the outer plastic wall and the outer plastic surface BT;
  • the connecting portion C extends from the second side sidewall of the cross section of the double flat wall tube along the lateral direction of the side wall, and the connecting portion C includes the same surface as the outer surface of the outer plastic wall
  • the connecting portion D includes an outer connecting surface D disposed under the intermediate plastic layer of the second side and the inner portion a connection height difference DI is included between outer surfaces of the layer plastic walls; a length of the connection portion ⁇ , the connection portion B, the connection portion C, and the connection portion D extends along a length direction of the double flat wall tube; the connection portion A, the width of the connecting portion B, the connecting portion C and the connecting portion D are satisfied: when the double flat wall tube is wound into the tube, when the inner connecting surface A and the outer connecting surface D are fitted together When the connection is connected, the outer connecting surface B of the inner connecting surface C is affixed to the lap joint; the connection height difference is full The outer surface C and the outer surface of the adjacent outer plastic wall are located in the same cylindrical surface after the connecting portion C is lap-bonded to the connecting portion B; the connection height difference DI It is satisfied that the outer surface A and the outer surface of the adjacent inner plastic wall are located in the same cylindrical surface after the connecting portion A and the connecting portion D are lap-fitted and connected; [0012]
  • the double ⁇ wall tube strip extends in the longitudinal direction; the widths of the connecting portion ⁇ , the connecting portion B, the connecting portion C and the connecting portion D satisfy: when the double flat wall tube is wound into a tube, When the inner connecting surface A and the outer connecting surface D are in abutting overlapping connection, the inner connecting surface C and the outer connecting surface B are in abutting and overlapping connection; the connection height difference BI I satisfies: The outer surface C and the outer surface of the adjacent inner plastic wall are located in the same cylindrical surface after the connecting portion C is engaged with the connecting portion B; the connection height difference DTT satisfies: The outer surface A and the outer surface of the adjacent outer plastic wall are located in the same cylinder after the connecting portion is lap-bonded to the connecting portion D.
  • the connecting portion A and the connecting portion C are 180 degrees rotationally symmetric along the center of the cross-section of the double flat wall tube.
  • the connecting portion B and the connecting portion D are rotationally symmetric with respect to the center of the cross-section of the double flat wall tube.
  • the technical solution adopted by the present invention to solve the second technical problem is: constructing a double flat wall tube, which is made by winding a double flat wall tube, the double flat wall strip including an inner plastic wall And an outer plastic layer, an intermediate plastic layer and a reinforcing metal, wherein the intermediate plastic layer is located between the inner plastic wall and the outer plastic wall, and is spaced along the length direction of the double flat wall tube and the inner portion is disposed
  • the outer plastic wall is integrally connected, and the reinforcing metal length is disposed in the intermediate plastic layer along the length direction of the double flat wall tube or in the intermediate plastic layer and the inner plastic wall and Or in the outer plastic wall;
  • the connecting portion A extends from a first side sidewall of the cross section of the double lower wall tube along a lateral direction of the sidewall, the connecting portion A including the outer surface of the inner plastic wall The outer surface A of the plane and the inner joint opposite the outer surface A
  • the connecting portion ⁇ includes an outer connecting surface ⁇ disposed on the intermediate plastic layer of the first side and including a connection height difference between the outer surface of the outer plastic wall and the outer plastic surface
  • the connecting portion C extends from the second side sidewall of the cross section of the double flat wall tube along the lateral direction of the side wall, and the connecting portion C includes the same plane as the outer surface of the outer plastic wall
  • the outer surface C and the inner connecting surface C opposite to the outer surface C, the connecting portion D includes an outer connecting surface D, the outer connecting surface D is disposed under the inter-turn plastic layer of the first side and
  • the outer surface of the inner plastic wall includes a connection height difference DI; the lengths of the connecting portion A, the connecting portion B, the connecting portion C and the connecting portion D extend along
  • the connecting portion C includes an outer surface C which is flush with the outer surface of the inner plastic wall and an inner connecting table opposite to the outer surface C C, the connecting portion D includes an outer connecting surface D, and the outer connecting surface D is disposed above the inter-stand plastic layer on the second side and includes a connection height difference DII between the outer surface of the inner plastic wall
  • the length of the connecting portion A, the connecting portion B, the connecting portion C, and the connecting portion D extends along the longitudinal direction of the double flat wall tube; the connecting portion A, the connecting portion B, the connecting portion C, and the connecting portion D Width is satisfied: when the double-walled tube strip is wound into a tube, when the inner connecting surface A and the outer connecting surface D are in abutting overlapping connection, the inner connecting surface C and the The outer connecting surface B is affixed to the lap joint; the connecting height difference BII is satisfied: the connecting portion C and the connecting portion B are spliced and lap jointed, and the outer surface is C and the adjacent inner portion
  • the connecting portion A and the connecting portion C are rotationally symmetrically 180 degrees along the center of the cross-section of the double flat wall tube
  • the connecting portion B and the The connecting portion D is rotationally symmetrical at 180 degrees along the center of the cross-section of the double flat wall tube.
  • the joining surface only requires the winding device to provide radial pressure and does not require axial pressure when winding the pipe, thereby simplifying the winding device structure.
  • FIG. 1 is a schematic cross-sectional view of a side joint structure of a conventional double flat wall tube strip.
  • FIG. 2 is a schematic cross-sectional view showing an embodiment of a wound lap joint structure of a double flat wall tube of the present invention.
  • FIG. 3 is a schematic cross-sectional view showing another embodiment of the winding lap joint structure of the double flat wall tube strip of the present invention.
  • FIG. 4 is a cross-sectional schematic cross-sectional view showing an embodiment of a wound lap joint structure of a double flat wall tube of the present invention.
  • the winding lap joint structure of the double flat wall pipe strip of the present invention is as follows:
  • the double-walled tube strip 10 includes an inner plastic wall 12, an outer plastic wall 11, an intermediate plastic layer 13, and a reinforcing metal 14.
  • the reinforcing metal 14 is made of a metal strip (e.g., a steel strip or the like). In other embodiments, the reinforcing metal 14 may be made of a strip metal such as a steel wire or a steel wire.
  • the intermediate plastic layer 13 is located between the inner plastic wall 12 and the outer plastic wall 11, is spaced along the length of the double flat wall strip 10, and connects the inner and outer plastic walls 12, 11 as one.
  • the length of the reinforcing metal 14 is disposed along the length of the double flat wall tube 10 in the plastic layer 13 of the towel or in the plastic layer 13 of the towel and the inner plastic wall 12 and the outer plastic wall 11 or
  • the intermediate plastic layer 13 is in the inner plastic wall 12 or the outer plastic wall 11.
  • the reinforcing metal reinforcing structure of the double flat wall tube strip is not limited to the reinforcing structure shown in the drawings of the present specification.
  • a connecting portion 15 is extended along the lateral direction of the side wall, and the connecting portion 15 includes an inner surface and an outer surface, and the outer surface is The outer surface of the inner plastic wall 12 of the double flat tube strip 10 is located on the same plane, and the inner surface opposite to the outer surface is an inner connecting surface where the connecting portion 15 and the connecting portion 18 are overlapped and connected.
  • the connecting portion 16 includes an outer surface which is an outer connecting surface of the connecting portion 16 and the connecting portion 17 which are overlapped and connected, and the outer connecting surface is disposed above the intermediate plastic layer 13 of the left side wall of the cross section and is A first connection height difference is provided between the outer surfaces of the outer plastic walls 11.
  • a connecting portion 17 is extended along the lateral direction of the side wall, the connecting portion 17 includes an inner surface and an outer surface, and the outer surface and the double flat wall tube strip
  • the outer surface of the outer plastic wall 11 of 10 is located on the same plane, and the inner surface opposite to the outer surface is an inner connecting surface in which the connecting portion 17 is overlapped with the connecting portion 16.
  • the connecting portion 18 includes an outer surface which is an outer connecting surface of the connecting portion 18 and the connecting portion 15 which are overlapped and connected, and the outer connecting surface is disposed under the intermediate plastic layer 13 of the right side wall of the cross section and is A second connection height difference is provided between the outer surfaces of the inner plastic wall 12.
  • the length of the connecting portions 15, 16, 17, 18 extends in the longitudinal direction of the double flat wall tube strip 10.
  • the width of the connecting portions 15, 16, 17, 18 is such that when the double flat wall tube 10 is wound into a tube, when the inner connecting surface of the connecting portion 15 and the outer connecting surface of the connecting portion 18 are fitted together When the connection is made, the inner connecting surface of the connecting portion 17 is in abutting connection with the outer connecting surface of the connecting portion 16, as shown in FIGS. 1 and 5.
  • the first connection height difference is satisfied: after the connecting portion 17 and the connecting portion 16 are in abutting overlapping connection, the outer surface of the connecting portion 17 is located in the same cylindrical surface as the outer surface of the adjacent mating outer plastic wall U ( The cylindrical surface is the outer wall cylinder of the pipe).
  • connection height difference is satisfied: after the connecting portion 15 and the connecting portion 18 are in abutting and overlapping connection, the outer surface of the connecting portion 15 is located in the same cylindrical surface as the outer surface of the adjacent inner plastic wall 12 ( The cylindrical surface is the inner wall circle of the pipe Cylinder).
  • the double flat wall tube strip 10 of the above embodiment employs a left spiral direction rotating tube when winding the tube.
  • the connecting portion 15 and the connecting portion 18 may be disposed on the side of the outer plastic wall 11 and the connecting portion 16 and the connecting portion may be symmetrical with the double flat wall tube 10.
  • the portion 17 is disposed on the inner plastic wall 12 side to form the double flat wall tube 20, and the object of the present invention can also be achieved.
  • the double flat wall tube 20 is rotated in the right spiral direction when the tube is wound.
  • the structural change of the double flat wall strip 20 is the same as that of the double flat tube strip 10.
  • the double flat wall tube strip 10 and the double flat wall tube strip 20 may have the following symmetrical structure: the connecting portion 15 and the connecting portion 17 are formed along the center of the cross-section of the double flat wall tube. 180 degrees rotationally symmetric, the connecting portion 16 and the connecting portion 18 are rotationally symmetric at 180 degrees along the center of the cross-section of the double flat wall tube.
  • the double flat wall tube of the present invention is produced by winding a double flat wall strip having the wound lap joint structure of the double flat wall tube of the present invention described above, and will not be described herein.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Reinforcement Elements For Buildings (AREA)

Description

双平壁管带材的缠绕搭接结构及使用该结构的双平壁管 技术领域
[0001 ] 本发明涉及一种制造管道的管材缠绕搭接结构，还涉及使用该结构的管道，更具 体地说，涉及一种双平壁管带材的缠绕搭接结构及使用该结构的双平壁管。 背景技术
[0002] 在地下管网工程中，塑料缠绕结构壁管材己被广泛使用。 由于采用纯塑料制造的 管道环刚度较低，难以达到交通要道承重荷载所需的高环刚度要求，因此需要加大管壁厚 度，使得制造管道的材料用量大大增加，成本增高。
[0003] 为了实现提高管道环刚度并降低管道生产成本的目的，出现了采用双平壁塑钢加 强结构的缠绕管。 如图 1所示，专利号为 200920110819. 8的中国专利公开了一种"钢塑复 合缠绕管"，在横截面呈矩形的型材 2中设置加强钢带 3，将型材 2螺旋缠绕成管道 1。得到 环刚度较高的管材，满足地下管道承载重荷所要求的环刚度要求。
[0004] 上述双平壁管在采用型材 2螺旋缠绕制造缠绕管道 1时，相邻的型材之间采用表 面相互贴合粘接的结构实现型材缠绕时侧面结构的连接。上述现有双平壁管带材的侧部连 接结构存在如下缺陷：
[0005] 1、由于带材侧部连接面为缠绕管的径向平面，连接表面须在高温及受压状态下才 能实现连接，因而缠绕设备需要设置对缠绕状态中的带材施加轴向压力的结构部件，使得 缠绕设备结构复杂；
[0006] 2、由于带材侧部连接面为缠绕管的径向平面，在缠绕管承受径向压力或弯矩时， 连接面承载能力较弱，连接面容易产生裂缝，导致缠绕管泄露。 发明内容
[0007] 本发明要解决的技术问题之一在于，提供一种双平壁管带材的缠绕搭接结构，克 服 Ή 目' W'M 币1 J '目' B'」 TO WiK ¾ tt tW 5 羽、 食 ¾ w ^ 缺陷。
[0008] 本发明要解决的技术问题之二在于，提供一种双平壁管，克服现有双平壁管带材 缠绕制管时侧部连接结构存在的承载能力较弱、缠绕设备结构复杂等缺陷。
[0009] 本发明解决其技术问题之一所采用的技术方案是：构造一种双平壁管带材的缠 绕搭接结构，所述双平壁管带材包括内层塑胶壁、外层塑胶壁、中间塑胶层和加强金属，所 述中间塑胶层位于所述内层塑胶壁与外层塑胶壁之间、沿所述双平壁管带材长度方向间隔 设置并将该内、外层塑胶壁连接为一体，所述加强金属长度沿所述双平壁管带材长度方向 设置在所述中间塑胶层中或设置在所述中间塑胶层中及所述内层塑胶壁和或外层塑胶壁 中；
[0010] 其特征在十，包括连接部 A、连接部 B、连接部 C和连接部 D；
[001 1 ] 所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出， 该连接部 A包括与所述内层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连 接表面 A，所述连接部 B包括外连接表面 B，该外连接表面 B设置在该第一侧的所述中间塑 胶层上方并与所述外层塑胶壁的外表面之间包括连接高差 BT；所述连接部 C由所述双平壁 管带材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述外层塑胶壁的 外表 m同平 m的外表面 c和与该外表 c相对的内连接表面 c所述连接部 D包括外连接表 面 D，该外连接表面 D设置在该第二侧的所述中间塑胶层下方并与所述内层塑胶壁的外表 面之间包括连接高差 DI；所述连接部 Λ、连接部 B、连接部 C和连接部 D的长度沿所述双平壁 管带材长度方向延伸；所述连接部 A、连接部 B、连接部 C和连接部 D的宽度满足：在将所述 双平壁管带材缠绕制管时，当所述内连接表面 A与所述外连接表面 D相贴配合搭接连接时， 所述内连接表面 C 所述外连接表面 B相贴配合搭接连接；所述连接高差 BI满足：所述连 接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述外层塑胶壁的 外表面位于同一圆柱面内；所述连接高差 DI满足：所述连接部 A与所述连接部 D相贴配合 搭接连接后所述外表面 A与相邻配合的所述内层塑胶壁的外表面位于同一圆柱面内； [0012] 或所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸 出，该连接部 A包括与所述外层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的 内连接表面 A，所述连接部 B包括外连接表面 B，该外连接表面 B设置在该第一侧的所述中 间塑胶层下方并与所述内层塑胶壁的外表面之间包括连接高差 ΒΠ；所述连接部 C由所述 双平壁管带材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述内层塑 胶壁的外表面同平面的外表面 C和与该外表面 C相对的内连接表面 (；，所述连接部 D包括外 连接表面 D，该外连接表面 D设置在该第二侧的所述中间塑胶层上方并与所述内层塑胶壁
^ *而
Figure imgf000004_0001
述双 Τ·壁管带材长度方向延伸；所述连接部 Α、连接部 B、连接部 C和连接部 D的宽度满足： 在将所述双平壁管带材缠绕制管时，当所述内连接表面 A与所述外连接表面 D相贴配合搭 接连接时，所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BI I满 足：所述连接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述内 层塑胶壁的外表面位于同一圆柱面内；所述连接高差 DTT满足：所述连接部 与所述连接 部 D相贴配合搭接连接后所述外表面 A与相邻配合的所述外层塑胶壁的外表面位于同一圆 柱 内。
[0013] 在本发明的双平壁管带材的缠绕搭接结构中，所述连接部 A与所述连接部 C沿所 述双平壁管带材横截面中心成 180度旋转对称，所述连接部 B与所述连接部 D沿所述双平 壁管带材横截面中心成 ISO度旋转对称。
[0014] 本发明解决其技术问题之二所采用的技术方案是：构造 -种双平壁管，使用双平 壁管带材缠绕制成，所述双平壁管带材包括内层塑胶壁、外层塑胶壁、中间塑胶层和加强金 属，所述中间塑胶层位于所述内层塑胶壁与外层塑胶壁之间、沿所述双平壁管带材长度方 向间隔设置并将该内、外层塑胶壁连接为一体，所述加强金属长度沿所述双平壁管带材长 度方向设置在所述中间塑胶层中或设置在所述中间塑胶层中及所述内层塑胶壁和或外层 塑胶壁中；
[0015] 其特征在于，包括连接部 A、连接部 B、连接部 C和连接部 D；
[0016] 所述连接部 A由所述双下壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出， 该连接部 A包括与所述内层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连 接表面 Λ，所述连接部 Β包括外连接表面 Β，该外连接表面 Β设置在该第一侧的所述中间塑 胶层上方并与所述外层塑胶壁的外表面之间包括连接高差 ΒΙ；所述连接部 C由所述双平壁 管带材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述外层塑胶壁的 外表面同平面的外表面 C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外连接表 面 D，该外连接表面 D设置在该第一.侧的所述屮间塑胶层下方并与所述内层塑胶壁的外表 而之间包括连接高差 DI；所述连接部 A、连接部 B、连接部 C和连接部 D的长度沿所述双平壁 管带材长度方向延伸；所述连接部 A、连接部 B、连接部 C和连接部 D的宽度满足：在将所述 双平壁管带材缠绕制管吋，当所述内连接表面 A与所述外连接表面 D相贴配合搭接连接吋， 所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BI满足：所述连 接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述外层塑胶壁的 外表面位于同一圆柱面内；所述连接高差 DI满足：所述连接部 A与所述连接部 D相贴配合 搭接连接后所述外表面 A 相邻配合的所述内层塑胶壁的外表面位于同一圆柱面内； [0017] 或所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸 出，该连接部 A包括与所述外层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的 内连接表而 A，所述连接部 B包括外连接表面 B，该外连接表而 B设置在该第一侧的所述中 间塑胶层下方并与所述内层塑胶 ¾的外表面之间包括连接高差 BII；所述连接部 C由所述 双平壁管带材横截面的第二侧侧壁沿该侧壁的横向延仲出，该连接部 C包括与所述内层塑 胶壁的外表面同平面的外表面 C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外 连接表面 D，该外连接表面 D设置在该第二侧的所述巾间塑胶层上方并与所述内层塑胶壁 的外表面之间包括连接高差 DII；所述连接部 A、连接部 B、连接部 C和连接部 D的长度沿所 述双平壁管带材长度方向延伸；所述连接部 A、连接部 B、连接部 C和连接部 D的宽度满足： 在将所述双平壁管带材缠绕制管吋，当所述内连接表面 A与所述外连接表面 D相贴配合搭 接连接时，所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BII满 足：所述连接部 C与所述连接部 B相贴配合搭接连接后所述外表而 C与相邻配合的所述内 层塑胶壁的外表面位于同一圆柱面内；所述连接高差 DII满足：所述连接部 A与所述连接 部 D相贴配合搭接连接后所述外表面 A与相邻配合的所述外层塑胶壁的外表面位于同一圆 柱面内。
[0018] 在本发明的双平壁管巾，所述连接部 A与所述连接部 C沿所述双平壁管带材横截 面中心成 180度旋转对称，所述连接部 B与所述连接部 D沿所述双平壁管带材横截面中心 成 180度旋转对称。
[0019] 实施木发明的双平壁管带材的缠绕搭接结构及使用该结构的双平壁管，与现有技 术比较，其有益效果是：
[0020] 1 . 将双平壁管带材的搭接结构 ώ径向平面连接改变为轴向平面连接，使管道在承 受径向载荷或弯曲载荷时连接面的受力状态由受拉变为受剪，提高了连接面的承载能力；
[0021 ] 2. 在缠绕制管时连接面只要求缠绕设备提供径向压力、不要求提供轴向压力，从 而简化了缠绕设备结构。 附图说明
[0022] 下面将结合附图及实施例对本发明作进一步说明，附图中： [0023] 图 1是一种现有双平壁管带材的侧部连接结构的横截面示意图。
[0024] 图 2是本发明双平壁管带材的缠绕搭接结构一种实施例的横截面示意图。
[0025] 图 3是本发明双平壁管带材的缠绕搭接结构另一种实施例的横截面示意图。
[0026] 图 4是本发明双平壁管带材的缠绕搭接结构一种实施例的搭接状态横截面示意 图。
[0027] 图 5是图 4中 I部放大图。 具体实施方式
[0028] 如图 2所示，本发明的双平壁管带材的缠绕搭接结构如下：
[0029] 双甲壁管带材 10包括内层塑胶壁 12、外层塑胶壁 11、中间塑胶层 13和加强金属 14。 本实施例加强金属 14采用金属带（如钢带等），在其他实施例中，加强金属 14可以采 用条状金属，如钢丝、钢丝绳等。
[0030] 中间塑胶层 13位于内层塑胶壁 12与外层塑胶壁 11之间、沿双平壁管带材 10的 长度方向间隔设置并将该内、外层塑胶壁 12、11连接为一体,加强金属 14的长度沿双平壁 管带材 10的长度方向设置在巾间塑胶层 13巾或设置在巾间塑胶层 13巾以及内层塑胶壁 12和外层塑胶壁 11中或设置在中间塑胶层 13中以及内层塑胶壁 12或外层塑胶壁 11中。
[0031 ] 在本发明的双平壁管带材搭接结构中，双平壁管带材的加强金属的加强结构不限 于本说明书附图示出的加强结构。
[0032] 如图 2所示，在双平壁管带材 10的横截面左侧侧壁，沿该侧壁的横向延伸出连接 部 15，连接部 15包括内表面和外表面，外表面与双平壁管带材 10的内层塑胶壁 12的外表 面位于同一平面，与外表面相对的内表面为连接部 1 5与连接部 18搭接连接的内连接表面。
[0033] 连接部 16包括外表面，该外表面为连接部 16与连接部 17搭接连接的外连接表 面，该外连接表面设置在该横截面左侧侧壁的中间塑胶层 13上方并与外层塑胶壁 11的外 表面之间设置第一连接高差。
[0034] 在双平壁管带材 10的横截面右侧侧壁，沿该侧壁的横向延伸出连接部 17，连接部 17包括内表面和外表面，外表面与双平壁管带材 10的外层塑胶壁 11的外表面位于同一平 面，与外表面相对的内表面为连接部 17与连接部 16搭接连接的内连接表面。
[0035] 连接部 18包括外表面，该外表面为连接部 18与连接部 15搭接连接的外连接表 面，该外连接表面设置在该横截面右侧侧壁的中间塑胶层 13下方并与内层塑胶壁 12的外 表面之间设置第二连接高差。
[0036] 连接部 15、16、17、18的长度沿双平壁管带材 10的长度方向延伸。
[0037] 连接部 15、 16、 17、 18的宽度满足：在将双平壁管带材 10缠绕制管时，当连接部 15 的内连接表面与连接部 18的外连接表面相贴配合搭接连接时，连接部 17的内连接表面与 连接部 16的外连接表面相贴配合搭接连接，如图 '1、图 5所示。
[0038] 第一连接高差满足：连接部 17与连接部 16相贴配合搭接连接后，连接部 17的外 表面与相邻配合的外层塑胶壁 U的外表面位于同一圆柱面内 （该圆柱面为管道的外壁圆 柱而）。
[0039] 第二连接高差满足：连接部 15与连接部 18相贴配合搭接连接后，连接部 15的外 表面与相邻配合的内层塑胶壁 12的外表面位于同一圆柱面内 （该圆柱面为管道的内壁圆 柱面）。
[0040] 上述实施例的双平壁管带材 10在缠绕制管时采用左螺旋方向旋转制管。
[0041 ] 如图 3所示，在其他实施例中，可以与双平壁管带材 10相对称，将连接部 15、连接 部 18设置在外层塑胶壁 11一侧，将连接部 16、连接部 17设置在内层塑胶壁 12—侧，形成 双平壁管带材 20，也能够实现本发明目的。双平壁管带材 20在缠绕制管时采用右螺旋方向 旋转制管。 双平壁管带材 20的结构变化与双平壁管带材 10相同。
[0042] 为了简化结构、便于制造，上述双平壁管带材 10、双平壁管带材 20可以采用如下 对称结构：连接部 15与连接部 17沿双平壁管带材横截面中心成 180度旋转对称，连接部 16 与连接部 18沿双平壁管带材横截面中心成 180度旋转对称。
[0043] 本发明的双平壁管采用带有上述本发明的双平壁管带材的缠绕搭接结构的双平 壁管带材缠绕制成，在此不再赘述。

Claims

权利要求书
1. 一种双平壁管 ^材的缠绕搭接结构，所述双平壁管 材包括内层塑胶壁、外层塑胶 壁、中间塑胶层和加强金属，所述中间塑胶层位于所述内层塑胶壁与外层塑胶壁之间、沿所 述双平壁管带材长度方向间隔设置并将该内、外层塑胶壁连接为- 体，所述加强金属长度 沿所述双平壁管带材长度方向设置在所述中间塑胶层中或设置在所述中间塑胶层中及所 述内层塑胶壁和或外层塑胶壁中；
其特征在于，包括连接部 A、连接部 B、连接部 C和连接部 D
所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出，该连 接部 A包括与所述内层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连接表 面 A，所述连接部 B包括外连接表面 B，该外连接表面 B设置在该第一侧的所述中间塑胶层 上方并与所述外层塑胶壁的外表面之间包括连接高差 BI；所述连接部 C由所述双平壁管带 材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述外层塑胶壁的外表 面同平面的外表面 C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外连接表面
D，该外连接表面 D设置在该第二侧的所述中间塑胶层下方并与所述内层塑胶壁的外表面 之间包括连接卨差 D1；所述连接部 Α、连接部 β、连接部 C和连接部 ϋ的长度沿所述双平壁 管带材长度方向延伸；所述连接部 Α、连接部 B、连接部 C和连接部 D的宽度满足：在将所述 双平壁管带材缠绕制管时，当所述内连接表面 A与所述外连接表面 D相贴配合搭接连接时， 所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BI满足：所述连 接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述外层塑胶壁的 外表面位十同一圆柱面内；所述连接高差 DT满足：所述连接部 A与所述连接部 I)相贴 fid合 ± JX±¾i*i* tS ΰ^.^ 1 ^ϊ^ Α r 巨 « B )Biii¾TAk*ffi i ^一 liSltt S H r .
或所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出，该 连接部 A包括与所述外层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连接 表面 Λ，所述连接部 Β包括外连接表面 Β，该外连接表面 Β设置在该第一侧的所述中间塑胶 层下方并与所述内层塑胶壁的外表面之间包括连接高差 ΒΙ Ι；所述连接部 C由所述双平壁 管带材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述内层塑胶壁的 外表 ffl同平 ίί的外表 ίί C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外连接表 面 D，该外连接表面 D设置在该第二侧的所述中间塑胶层上方并 所述内层塑胶壁的外表 面之间包括连接 差 Dil；所述连接部 Α、连接部 β、连接部 C和连接部 ϋ的长度沿所述双平 壁管带材长度方向延伸；所述连接部 Α、连接部 B、连接部 C和连接部 D的宽度满足：在将所 述双平壁管带材缠绕制管时，当所述内连接表面 Λ与所述外连接表面 D相贴配合搭接连接 时，所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 ΒΠ满足：所 述连接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述内层塑胶 壁的外表 位于同一圆柱面内；所述连接高差 DI I满足：所述连接部 A与所述连接部 D相贴 配合搭接连接后所述外表面 A与相邻配合的所述外层塑胶壁的外表面位于同一圆柱面内。
2.如权利要求 i所述的双平壁管带材的缠绕搭接结构，其特征在于，所述连接部 A与所 述连接部 C沿所述双平壁管带材横截面中心成 180度旋转对称，所述连接部 B与所述连接 部 D沿所述双平壁管带材横截面中心成 180度旋转对称。
3. 一种双平壁管，使用双平壁管带材缠绕制成，所述双平壁管带材包括内层塑胶壁、外 层塑胶壁、中间塑胶层和加强金属，所述中间塑胶层位于所述内层塑胶壁与外层塑胶壁之 间、沿所述双平壁管带材长度方向间隔设置并将该内、外层塑胶壁连接为一体，所述加强金 属长度沿所述双平壁管带材长度方向设置在所述中间塑胶层中或设置在所述中间塑胶层 中及所述内层塑胶壁和或外层塑胶壁中；
其特征在于，包括连接部 A、连接部 B、连接部 C和连接部 D；
所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出，该连 接部 A包括与所述内层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连接表 面 A，所述连接部 B包括外连接表面 B,该外连接表面 B设置在该第一侧的所述中间塑胶层 上方并与所述外层塑胶壁的外表面之间包括连接高差 BI；所述连接部 C由所述双平壁管带 材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述外层塑胶壁的外表 面同平面的外表面 C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外连接表面 D，该外连接表面 D设置在该第二侧的所述中间塑胶层下方并与所述内层塑胶壁的外表面 之间包括连接高差 DI；所述连接部 A、连接部 B、连接部 C和连接部 D的长度沿所述双平壁 管带材长度方向延伸；所述连接部 A、连接部 B、连接部 C和连接部 D的宽度满足：在将所述 双平壁管带材缠绕制管时，当所述内连接表面 A与所述外连接表面 D相贴配合搭接连接时， 所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BI满足：所述连 接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述外层塑胶壁的 外表面位于同一圆柱面内；所述连接高差 DI满足：所述连接部 A与所述连接部 D相贴配合 搭接连接后所述外表面 A与相邻配合的所述内层塑胶壁的外表面位于同一圆柱面内； 或所述连接部 A由所述双平壁管带材横截面的第一侧侧壁沿该侧壁的横向延伸出，该 连接部 A包括与所述外层塑胶壁的外表面同平面的外表面 A和与该外表面 A相对的内连接 表面 A，所述连接部 B包括外连接表面 B，该外连接表面 B设置在该第一侧的所述中间塑胶 层下方并与所述内层塑胶壁的外表面之间包括连接高差 BII；所述连接部 C由所述双平壁 管带材横截面的第二侧侧壁沿该侧壁的横向延伸出，该连接部 C包括与所述内层塑胶壁的 外表面同平面的外表面 C和与该外表面 C相对的内连接表面 C，所述连接部 D包括外连接表 面 D，该外连接表面 D设置在该第二侧的所述中间塑胶层上方并与所述内层塑胶壁的外表 面之间包括连接高差 DII；所述连接部 A、连接部 B、连接部 C和连接部 D的长度沿所述双平 壁管带材长度方向延伸；所述连接部 A、连接部 B、连接部 C和连接部 D的宽度满足：在将所 述双平壁管带材缠绕制管时，当所述内连接表面 A与所述外连接表面 D相贴配合搭接连接 时，所述内连接表面 C与所述外连接表面 B相贴配合搭接连接；所述连接高差 BII满足：所 述连接部 C与所述连接部 B相贴配合搭接连接后所述外表面 C与相邻配合的所述内层塑胶 壁的外表面位于同一圆柱面内；所述连接高差 DII满足：所述连接部 A与所述连接部 D相贴 配合搭接连接后所述外表面 A与相邻配合的所述外层塑胶壁的外表面位于同一圆柱面内。
4.如权利要求 3所述的双平壁管，其特征在于，所述连接部 A与所述连接部 C沿所述双 平壁管带材横截面中心成 180度旋转对称，所述连接部 B与所述连接部 D沿所述双平壁管 带材横截面中心成 180度旋转对称。
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