WO2022001156A1 - 一种波纹管总成 - Google Patents

一种波纹管总成 Download PDF

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Publication number
WO2022001156A1
WO2022001156A1 PCT/CN2021/079504 CN2021079504W WO2022001156A1 WO 2022001156 A1 WO2022001156 A1 WO 2022001156A1 CN 2021079504 W CN2021079504 W CN 2021079504W WO 2022001156 A1 WO2022001156 A1 WO 2022001156A1
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WIPO (PCT)
Prior art keywords
joint
corrugated pipe
thermal insulation
bellows
connecting portion
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PCT/CN2021/079504
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English (en)
French (fr)
Inventor
黄树堂
赵增虎
赫敏
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菲时特集团股份有限公司
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Application filed by 菲时特集团股份有限公司 filed Critical 菲时特集团股份有限公司
Publication of WO2022001156A1 publication Critical patent/WO2022001156A1/zh

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    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/153—Arrangements for the insulation of pipes or pipe systems for flexible pipes

Definitions

  • the utility model belongs to the technical field of pipe fittings, and relates to a corrugated pipe assembly.
  • Corrugated pipe is a type of flexible pipe and is widely used in pipelines that require flexible connections. Due to different materials, bellows can be divided into plastic bellows and metal bellows. Stainless steel bellows in metal bellows have the properties of good flexibility, pressure resistance, corrosion resistance, fatigue resistance, and high and low temperature resistance.
  • the stainless steel bellows can be used to connect the water heater.
  • the hot water generated by the water heater is transported to the end of use through the stainless steel bellows.
  • an insulation layer is often set on the outside of the bellows.
  • Chinese patent literature publicly proposes a thermal insulation double-wall corrugated pipe [application number: CN201810311427.1; publication number: CN 108331980 A], in one of the technical solutions, the thermal insulation double-wall corrugated pipe only includes a double-wall corrugated pipe layer and the insulation layer of the vacuum insulation board, which is connected to the outer surface of the double-wall corrugated pipe layer.
  • the insulation layer of the vacuum insulation panel wraps the double-wall corrugated pipe in two semicircular structures and is fixed in the way of yin and yang buckles.
  • the double-wall corrugated pipe When the pipe body of the double-wall corrugated pipe is bent, the double-wall corrugated pipe
  • the vacuum insulation board insulation layer on the outside of the corrugated pipe will also be bent and deformed, and the deformation of the vacuum insulation board insulation layer will easily damage the yin and yang buckle structure, so that the two semicircular structures of the vacuum insulation board insulation layer cannot be fixed.
  • the purpose of the utility model is to solve the above problems existing in the prior art, and propose a corrugated pipe assembly, which solves the technical problem that the thermal insulation layer in the existing corrugated pipe is easy to fall off.
  • a corrugated pipe assembly includes a corrugated pipe body, two ends of the corrugated pipe body are respectively connected with a right joint and a left joint, characterized in that the outer side of the corrugated pipe body is sheathed with a thermal insulation material made of a flexible thermal insulation material
  • the insulation pipe is an integrated tubular structure, the inner side of the insulation pipe is abutted against the outer side of the corrugated pipe body, and the right end of the corrugated pipe body has a right connecting part formed by stamping.
  • the joint is connected to the right joint, and the right joint has an annular right blocking ring protruding from the outer surface of the bellows.
  • the left end of the bellows body has a left joint formed by stamping, and the left joint is connected On the left connecting portion, there is an annular left blocking ring protruding from the outer surface of the bellows.
  • the right blocking ring and the left blocking ring protrude from the outer side of the bellows body, the right blocking ring and the left blocking ring can limit the thermal insulation pipe on the corrugated pipe body, so that the thermal insulation pipe is not easy to pass from the two ends of the corrugated pipe body. fall off.
  • the right and left joints are formed by stamping, and plastic deformation will occur during the stamping process, so that the right and left joints have better structural strength, which can reduce the possibility of deformation of the right and left blocking rings. , thereby reducing the possibility of the insulation pipe falling off from the deformed right blocking ring and the left blocking ring, ensuring that the insulation pipe is not easy to fall off from both ends of the corrugated pipe body.
  • the thermal insulation pipe is an integrated tubular structure made of flexible thermal insulation materials.
  • the thermal insulation pipe has a certain deformation ability and has good structural stability during deformation. Therefore, when the corrugated pipe body is bent, the thermal insulation pipe will follow the corrugation. The tube body is bent but will not break, and the insulation tube will not be detached from the bellows body due to the bending of the bellows body. Therefore, the thermal insulation pipe in the corrugated pipe assembly is not easy to fall off from the corrugated pipe body, thereby ensuring the thermal insulation effect and antifreeze effect of the thermal insulation pipe.
  • the right connecting portion is formed by a pipe wall at the right end of the bellows body protruding outwards and then superimposed, and the right joint is fixed on the right end surface of the right connecting portion by welding, so The right joint is provided with a right convex ring protruding from the outer surface of the bellows.
  • the right connecting part is formed by a pipe wall at the right end of the bellows body that protrudes outwards and then is laminated, that is, the right connecting part is a wave lamination structure, which can improve the structural strength of the right connecting part, so that the right connecting part is connected to the right
  • the upper part is firmly fixed, which also stabilizes the structure of the right blocking ring, reducing the possibility of the insulation pipe falling off the right end of the corrugated pipe body, and the setting of the right convex ring can further reduce the possibility of the insulation pipe falling off from the right end of the corrugated pipe body, so as to make the insulation pipe fall off from the right end of the corrugated pipe body.
  • the tube is not easy to fall off the bellows body.
  • the left connecting portion is formed by three pipe walls at the left end of the bellows body protruding outwards and then being stacked, the left joint is sleeved on the outside of the left end of the bellows body, and the left joint is The inner surface of the right end is provided with a protruding shoulder, which is located on the right side of the left connecting portion and can abut against the right end surface of the left connecting portion.
  • the left joint is connected to the left end of the bellows body through the limiting action of the shoulder and the left connecting portion, so that the left joint forms a live connection structure, so that the bellows assembly is easily connected to the pipeline.
  • the left joint is sleeved on the corrugated pipe body, so that the left joint has a structure protruding from the outer side of the corrugated pipe, so as to form a blocking effect on the insulation pipe, so that the insulation pipe is not easy to fall off the left end of the corrugated pipe body.
  • the left connecting part is formed by the three pipe walls at the left end of the bellows body protruding outward and then being laminated, that is, the left connecting part is a three-wave laminated structure, which can improve the structural strength of the left connecting part, so that the left connecting part is on the left side.
  • the connection on the connecting portion is firm, which also stabilizes the structure of the left blocking ring, reduces the possibility of the insulation pipe falling off from the left end of the corrugated pipe body, so that the insulation pipe is not easy to fall off from the corrugated pipe body.
  • a fixing groove is provided on the outer surface of the left end of the bellows body, the fixing groove is located between the left connecting portion and the retaining shoulder, and an elastic retaining ring is clamped in the fixing groove.
  • the elastic retaining ring abuts on the right end surface of the left connecting portion, the retaining shoulder can abut on the elastic retaining ring, and an inner thread is provided on the inner surface of the left end of the left joint.
  • the left end of the left joint When the left joint is connected to the pipe fitting, the left end of the left joint is sleeved on the pipe fitting and rotated to form a threaded connection between the inner thread and the pipe fitting.
  • the elastic force makes the inner thread tighten with the outer thread on the pipe fitting, so that the left joint is connected stably on the pipe fitting.
  • the thermal insulation pipe is made of foamed nitrile rubber.
  • Foamed nitrile-butadiene rubber has good thermal insulation effect, and has good elastic deformation ability and toughness, can be bent and is not easy to break, and can make the thermal insulation pipe not easy to fall off from the corrugated pipe body.
  • the bellows body is made of stainless steel.
  • Stainless steel has good corrosion resistance.
  • the thermal insulation pipe is an integrated tubular structure made of flexible thermal insulation materials.
  • the left end of the bellows body is punched to form a left joint, and the left joint is provided with a left blocking ring, and the right end of the corrugated pipe is punched to form a right joint.
  • a right blocking ring is arranged on the right connecting part, so that the heat preservation pipe is not easy to fall off from the corrugated pipe body.
  • the right connecting part is formed by a tube wall at the right end of the bellows body protruding outwards and then stacked, and the left connecting part is formed by the three tube walls at the left end of the bellows body projecting outwards and then stacked, which improves the structural strength and makes the The insulation tube is not easy to fall off.
  • Figure 1 is a cross-sectional view of the bellows assembly
  • Fig. 2 is the enlarged view of A place in Fig. 1;
  • FIG. 3 is an enlarged view of B in FIG. 1 .
  • bellows body 1a, right connecting part; 1b, right blocking ring; 1c, left connecting part; 1d, left blocking ring; 1e, fixing groove; 2, insulation pipe; 3, right joint; 3a, Right convex ring; 4, left joint; 4a, shoulder; 4b, internal thread; 5, elastic retaining ring.
  • a bellows assembly includes a bellows body 1 made of a metal material.
  • the metal material can be stainless steel or aluminum alloy, and 304 stainless steel can be selected from the stainless steel.
  • the outer side of the bellows body 1 is sheathed with a thermal insulation pipe 2 made of a flexible thermal insulation material, and the flexible thermal insulation material may be foamed nitrile rubber or foamed polyethylene.
  • the thermal insulation pipe 2 is an integrated tubular structure, and the inner side of the thermal insulation pipe 2 abuts against the outer side of the corrugated pipe body 1 .
  • the thermal insulation pipe 2 can prevent the loss of heat in the corrugated pipe body 1, improve the utilization rate of thermal energy, and at the same time, in a colder area in winter, it can also effectively prevent the low temperature freezing crack of the corrugated pipe body 1.
  • the right end of the bellows body 1 has a right connecting portion 1a formed by stamping, and the right connecting portion 1a has an annular right blocking ring 1b protruding from the outer surface of the bellows body 1 .
  • the right connecting part 1a is connected with a right joint 3.
  • the right connecting part 1a is formed by one or two pipe walls at the right end of the bellows body 1 protruding outwards and then superimposed.
  • the right joint 3 is fixed on the right connecting part 1a by welding. On the right end surface, the right joint 3 has a right convex ring 3a protruding from the outer surface of the bellows body 1 .
  • the left end of the bellows body 1 has a left connecting portion 1c formed by stamping, and the left connecting portion 1c has an annular left blocking ring 1d protruding from the outer surface of the bellows body 1 .
  • the left connecting portion 1c is connected with a left joint 4.
  • the left connecting portion 1c is formed by three or four pipe walls at the left end of the bellows body 1 that protrude outward and then overlapped.
  • the left joint 4 is sleeved on the outside of the left end of the bellows body 1.
  • the inner surface of the right end of the left joint 4 has a protruding annular shoulder 4a, which is located on the right side of the left connecting portion 1c and can abut against the right end surface of the left connecting portion 1c.
  • the outer surface of the left end of the bellows body 1 is provided with a fixing groove 1e, the fixing groove 1e is located between the left connecting portion 1c and the shoulder 4a, the fixing groove 1e is clamped with an elastic retaining ring 5, and the elastic retaining ring 5 abuts against the left connecting portion 1e.
  • the retaining shoulder 4a can abut on the elastic retaining ring 5, and the inner surface of the left end of the left joint 4 is provided with an inner thread 4b.
  • a sealing gasket is fixed in the left joint 4 .
  • both the right blocking ring 1b and the left blocking ring 1d protrude from the outer side of the corrugated pipe body 1, the right blocking ring 1b and the left blocking ring 1d can limit the thermal insulation pipe 2 on the corrugated pipe body 1, so that the thermal insulation pipe 2 It is not easy to fall off from both ends of the bellows body 1 .
  • both the left joint 4 and the right joint 3 have parts protruding from the outer surface of the corrugated pipe body 1 , which can further prevent the thermal insulation pipe 2 from falling off both ends of the corrugated pipe body 1 .
  • the right connecting portion 1a and the left connecting portion 1c are both formed by stamping, and plastic deformation will occur during the stamping process, so that the right connecting portion 1a and the left connecting portion 1c have better structural strength, which can reduce the number of the right blocking ring 1b and the left blocking ring.
  • the possibility of deformation of 1d reduces the possibility of the insulation pipe 2 falling off from the deformed right blocking ring 1b and left blocking ring 1d, and ensures that the insulation pipe 2 is not easy to fall off from both ends of the corrugated pipe body 1 .
  • the thermal insulation pipe 2 is an integrated tubular structure made of flexible thermal insulation materials.
  • the thermal insulation pipe 2 has a certain deformation ability and has good structural stability during deformation.
  • the thermal insulation pipe 2 As the corrugated pipe body 1 is bent without breaking, the thermal insulation pipe 2 will not be detached from the corrugated pipe because the corrugated pipe body 1 is bent. Therefore, in the corrugated pipe assembly, the thermal insulation pipe 2 is not easy to fall off from the corrugated pipe body 1 , which ensures the thermal insulation effect and the antifreeze effect of the thermal insulation pipe 2 .

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

一种波纹管总成，包括波纹管体（1），波纹管体（1）的两端分别连接有右接头（3）和左接头（4），波纹管体（1）的外侧套装有由柔性保温材料制成的保温管（2），保温管（2）为一体化的管状结构，保温管（2）的内侧面贴靠在波纹管体（1）的外侧面上，波纹管体（1）的右端具有通过冲压成型的右接部（1a），右接头（3）连接在右接部（1a）上，右接部（1a）上具有凸出波纹管体（1）外侧面的呈环形的右阻挡环（1b），波纹管体（1）的左端具有通过冲压成型的左接部（1c），左接头（4）连接在左接部（1c）上，左接部（1c）上具有凸出波纹管体（1）外侧面的呈环形的左阻挡环（1d）。波纹管总成中保温管不易从波纹管体上脱落，保证了保温管的保温效果和防冻作用。

Description

一种波纹管总成 技术领域
本实用新型属于管件技术领域，涉及一种波纹管总成。
背景技术
波纹管是柔性管的一种，在需要柔性连接的管路中被广泛使用。波纹管由于材质的不同，可以分为塑料波纹管和金属波纹管等，金属波纹管中的不锈钢波纹管具有柔性好、耐压、抗腐蚀、抗疲劳、耐高低温等性能。
不锈钢波纹管可用于连接热水器，热水器产生的热水通过不锈钢波纹管输送到使用终端，为了防止热量的散失，往往会在波纹管的外侧设置保温层。中国专利文献资料公开提出了一种保温型双壁波纹管[申请号：CN201810311427.1；公布号：CN 108331980 A]，其中一个技术方案中，保温型双壁波纹管仅包括双壁波纹管层和真空绝热板保温层，真空绝热板保温层连接在双壁波纹管层的外表面。
上述的保温型双壁波纹管中，真空绝热板保温层以两个半圆形结构包裹双壁波纹管并以阴阳卡扣的方式固定，当双壁波纹管的管体发生弯曲时，双壁波纹管外侧的真空绝热板保温层也会发生弯曲变形，而真空绝热板保温层变形后很容易使阴阳卡扣结构发生破坏，从而使真空绝热板保温层的两个半圆形结构无法固定，导致真空绝热板保温层脱落而失去保温作用。
发明内容
本实用新型的目的是针对现有技术存在的上述问题，提出了一种波纹管总成，解决了现有的波纹管中保温层容易脱落的技术问题。
本实用新型的目的可通过下列技术方案来实现：
一种波纹管总成，包括波纹管体，所述波纹管体的两端分别连接有右接头和左接头，其特征在于，所述波纹管体的外侧套装有由柔性保温材料制成的保温管，所述保温管为一体化的管状结构，所述保温管的内侧面贴靠在波纹管体的外侧面上，所述波纹管体的右端具有通过冲压成型的右接部，所述右接头连接在右接部上，所述右接部上具有凸出波纹管体外侧面的呈环形的右阻挡环，所述波纹管体的左端具有通过冲压成型的左接部，所述左接头连接在左接部上，所述左接部上具有凸出波纹管体外侧面的呈环形的左阻挡环。
组装时，先将具有一体化结构的保温管套装在波纹管体上，然后将波纹管体的两端进行冲压，形成具有右阻挡环的右接部和具有左阻挡环的左接部，使右接头连接到右接部 上，左接头连接到左接部上，这样就完成波纹管总成的组装。
由于右阻挡环和左阻挡环均凸出于波纹管体的外侧面，通过右阻挡环和左阻挡环能够将保温管限位在波纹管体上，使保温管不易从波纹管体的两端脱落。而右接部和左接部均通过冲压成型，冲压过程会产生塑性变形，从而使右接部和左接部具有较好的结构强度，可减少右阻挡环和左阻挡环发生变形的可能性，从而减少保温管从变形的右阻挡环和左阻挡环脱落的可能性，保证保温管不易从波纹管体的两端脱落。而且保温管是由柔性保温材料制成的一体化管状结构，保温管具有一定的变形能力且在变形时具有很好的结构稳定性，因此，在波纹管体发生弯曲时，保温管随着波纹管体弯曲但不会发生破裂，保温管不会因为波纹管体发生弯曲而从波纹管体上脱离。因此，本波纹管总成中保温管不易从波纹管体上脱落，保证了保温管的保温效果和防冻作用。
在上述的波纹管总成中，所述右接部由波纹管体右端的一处管壁向外凸出后叠压形成，所述右接头通过焊接固定在右接部的右端面上，所述右接头上具有凸出波纹管体外侧面的右凸环。
右接部由波纹管体右端的一处管壁向外凸出后叠压形成，即右接部为一个波的叠压结构，这样可以提高右接部的结构强度，使右接头在右接部上固定牢固，也使右阻挡环结构稳定，降低保温管从波纹管体右端脱落的可能性，而且右凸环的设置能够进一步降低保温管从波纹管体右端脱落的可能性，从而使保温管不易从波纹管体上脱落。
在上述的波纹管总成中，所述左接部由波纹管体左端的三处管壁向外凸出后叠压形成，所述左接头套装在波纹管体左端的外侧，所述左接头右端的内侧面上具有凸出的挡肩，所述挡肩位于左接部的右侧并能够抵靠在左接部的右端面上。
通过挡肩和左接部的限位作用使左接头连接在波纹管体的左端上，使左接头形成活接结构，使波纹管总成连接到管路上方便。左接头套装在波纹管体上，使得左接头具有凸出波纹管体外侧面的结构，从而对保温管形成阻挡作用，使保温管不易从波纹管体的左端脱落。左接部由波纹管体左端的三处管壁向外凸出后叠压形成，即左接部为三个波的叠压结构，这样可以提高左接部的结构强度，使左接头在左接部上连接牢固，也使左阻挡环结构稳定，降低保温管从波纹管体左端脱落的可能性，从而使保温管不易从波纹管体上脱落。
上述的波纹管总成中，所述波纹管体左端的外侧面上具有固定槽，所述固定槽位于左接部与挡肩之间，所述固定槽内卡接有弹性挡圈，所述弹性挡圈抵靠在左接部的右端面上，所述挡肩能够抵靠在弹性挡圈上，所述左接头左端的内侧面上设置有内螺纹。
左接头与管件连接时，将左接头左端套装在管件上并转动，使内螺纹与管件形成螺 纹连接，拧紧左接头后弹性挡圈抵靠在左接部和挡肩上，弹性挡圈产生的弹力使内螺纹与管件上的外螺纹咬紧，使左接头在管件上连接稳定。
在上述的波纹管总成中，所述保温管由发泡丁腈橡胶制成。
发泡丁腈橡胶具有很好的保温效果，且具有很好的弹性变形能力和韧性，能够弯曲且不易破裂，能够使保温管不易从波纹管体上脱落。
在上述的波纹管总成中，所述波纹管体由不锈钢制成。不锈钢具有很好的抗腐蚀性能。
与现有技术相比，本实用新型具有以下优点：
保温管是由柔性保温材料制成的一体化管状结构，波纹管体的左端通过冲压形成左接部，且左接部上设置有左阻挡环，波纹管体的右端通过冲压形成右接部，且右接部上设置有右阻挡环，使保温管不易从波纹管体上脱落。右接部由波纹管体右端的一处管壁向外凸出后叠压形成，左接部由波纹管体左端的三处管壁向外凸出后叠压形成，提高了结构强度，使保温管不易脱落。
附图说明
图1是本波纹管总成的剖视图；
图2是图1中A处的放大图；
图3是图1中B处的放大图。
图中，1、波纹管体；1a、右接部；1b、右阻挡环；1c、左接部；1d、左阻挡环；1e、固定槽；2、保温管；3、右接头；3a、右凸环；4、左接头；4a、挡肩；4b、内螺纹；5、弹性挡圈。
具体实施方式
以下是本实用新型的具体实施例并结合附图，对本实用新型的技术方案作进一步的描述，但本实用新型并不限于这些实施例。
实施例一
如图1-图3所示，一种波纹管总成，包括由金属材料制成的波纹管体1，金属材料可以为不锈钢材料或者铝合金材料等，不锈钢材料中可选304不锈钢。波纹管体1的外侧套装有由柔性保温材料制成的保温管2，柔性保温材料可以为发泡丁腈橡胶或者发泡聚乙烯等。保温管2为一体化的管状结构，保温管2的内侧面贴靠在波纹管体1的外侧面上。保温管2可以防止波纹管体1内热量的损失，提高热能使用率，同时在冬季较寒冷的地区，还能有效防止波纹管体1的低温冻裂现象。
波纹管体1的右端具有通过冲压成型的右接部1a，右接部1a上具有凸出波纹管体1外侧面的呈环形的右阻挡环1b。右接部1a上连接有右接头3，右接部1a由波纹管体1右端的一处或者两处管壁向外凸出后叠压形成，右接头3通过焊接固定在右接部1a的右端面上，右接头3上具有凸出波纹管体1外侧面的右凸环3a。波纹管体1的左端具有通过冲压成型的左接部1c，左接部1c上具有凸出波纹管体1外侧面的呈环形的左阻挡环1d。左接部1c上连接有左接头4，左接部1c由波纹管体1左端的三处或者四处管壁向外凸出后叠压形成，左接头4套装在波纹管体1左端的外侧，左接头4右端的内侧面上具有凸出的呈环形的挡肩4a，挡肩4a位于左接部1c的右侧并能够抵靠在左接部1c的右端面上。波纹管体1左端的外侧面上具有固定槽1e，固定槽1e位于左接部1c与挡肩4a之间，固定槽1e内卡接有弹性挡圈5，弹性挡圈5抵靠在左接部1c的右端面上，挡肩4a能够抵靠在弹性挡圈5上，左接头4左端的内侧面上设置有内螺纹4b。左接头4内固定有密封垫圈。
组装时，先将具有一体化结构的保温管2套装在波纹管体1上，然后将波纹管体1的右端进行冲压，形成具有右阻挡环1b的右接部1a，再将右接头3通过焊接固定在右接部1a的右端面上，接着将左接头4套装在波纹管体1的左端上，然后将波纹管体1的左端进行冲压，形成具有左阻挡环1d的左接部1c，挡肩4a位于左接部1c的右侧，再将弹性挡圈5放入到固定槽1e内，将密封垫圈放入到左接头4内。这样就完成了波纹管总成的组装。
由于右阻挡环1b和左阻挡环1d均凸出于波纹管体1的外侧面，通过右阻挡环1b和左阻挡环1d能够将保温管2限位在波纹管体1上，使保温管2不易从波纹管体1的两端脱落。同时，左接头4和右接头3均具有凸出波纹管体1外侧面的部位，能够进一步使保温管2不易从波纹管体1的两端脱落。而右接部1a和左接部1c均通过冲压成型，冲压过程会产生塑性变形，从而使右接部1a和左接部1c具有较好的结构强度，可减少右阻挡环1b和左阻挡环1d发生变形的可能性，从而减少保温管2从变形的右阻挡环1b和左阻挡环1d脱落的可能性，保证保温管2不易从波纹管体1的两端脱落。而且保温管2是由柔性保温材料制成的一体化管状结构，保温管2具有一定的变形能力且在变形时具有很好的结构稳定性，因此，在波纹管体1发生弯曲时，保温管2随着波纹管体1弯曲但不会发生破裂，保温管2不会因为波纹管体1发生弯曲而从波纹管上脱离。因此，本波纹管总成中保温管2不易从波纹管体1上脱落，保证了保温管2的保温效果和防冻作用。
本文中所描述的具体实施例仅仅是对本实用新型精神作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本实用新型的精神或者超越所附权利要求书所定义的范围。

Claims (6)

  1. 一种波纹管总成，包括波纹管体(1)，所述波纹管体(1)的两端分别连接有右接头(3)和左接头(4)，其特征在于，所述波纹管体(1)的外侧套装有由柔性保温材料制成的保温管(2)，所述保温管(2)为一体化的管状结构，所述保温管(2)的内侧面贴靠在波纹管体(1)的外侧面上，所述波纹管体(1)的右端具有通过冲压成型的右接部(1a)，所述右接头(3)连接在右接部(1a)上，所述右接部(1a)上具有凸出波纹管体(1)外侧面的呈环形的右阻挡环(1b)，所述波纹管体(1)的左端具有通过冲压成型的左接部(1c)，所述左接头(4)连接在左接部(1c)上，所述左接部(1c)上具有凸出波纹管体(1)外侧面的呈环形的左阻挡环(1d)。
  2. 根据权利要求1所述的波纹管总成，其特征在于，所述右接部(1a)由波纹管体(1)右端的一处管壁向外凸出后叠压形成，所述右接头(3)通过焊接固定在右接部(1a)的右端面上，所述右接头(3)上具有凸出波纹管体(1)外侧面的右凸环(3a)。
  3. 根据权利要求1所述的波纹管总成，其特征在于，所述左接部(1c)由波纹管体(1)左端的三处管壁向外凸出后叠压形成，所述左接头(4)套装在波纹管体(1)左端的外侧，所述左接头(4)右端的内侧面上具有凸出的挡肩(4a)，所述挡肩(4a)位于左接部(1c)的右侧并能够抵靠在左接部(1c)的右端面上。
  4. 根据权利要求3所述的波纹管总成，其特征在于，所述波纹管体(1)左端的外侧面上具有固定槽(1e)，所述固定槽(1e)位于左接部(1c)与挡肩(4a)之间，所述固定槽(1e)内卡接有弹性挡圈(5)，所述弹性挡圈(5)抵靠在左接部(1c)的右端面上，所述挡肩(4a)能够抵靠在弹性挡圈(5)上，所述左接头(4)左端的内侧面上设置有内螺纹(4b)。
  5. 根据权利要求1-4任一所述的波纹管总成，其特征在于，所述保温管(2)由发泡丁腈橡胶制成。
  6. 根据权利要求1-4任一所述的波纹管总成，其特征在于，所述波纹管体(1)由不锈钢制成。
PCT/CN2021/079504 2020-06-28 2021-03-08 一种波纹管总成 WO2022001156A1 (zh)

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CN212455980U (zh) * 2020-06-28 2021-02-02 菲时特集团股份有限公司 一种波纹管总成
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