WO2022094849A1 - 一种耐低温抗冲击型pvc管道 - Google Patents

一种耐低温抗冲击型pvc管道 Download PDF

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Publication number
WO2022094849A1
WO2022094849A1 PCT/CN2020/126722 CN2020126722W WO2022094849A1 WO 2022094849 A1 WO2022094849 A1 WO 2022094849A1 CN 2020126722 W CN2020126722 W CN 2020126722W WO 2022094849 A1 WO2022094849 A1 WO 2022094849A1
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Prior art keywords
resistant
pipe
impact
pvc pipe
temperature
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PCT/CN2020/126722
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English (en)
French (fr)
Inventor
胡正委
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徐州鑫隆管业有限公司
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Priority to PCT/CN2020/126722 priority Critical patent/WO2022094849A1/zh
Publication of WO2022094849A1 publication Critical patent/WO2022094849A1/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
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • 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
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • 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
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Definitions

  • the utility model belongs to the technical field of PVC pipes, in particular to a low temperature-resistant and impact-resistant PVC pipe.
  • PVC pipe is made of polyvinyl chloride resin, stabilizers, lubricants, etc., and then extruded by hot pressing. It is the earliest plastic pipe that has been developed and applied. A series of policies, systems and standards have been formulated, and a lot of experience has been accumulated. Today, it has perfect product standards, testing method standards and testing methods, construction engineering technical specifications, etc., so as to unify the specifications and quality indicators of products and realize the interchangeability of products. This shows that the development of PVC pipes has entered a mature stage, and the product quality and construction quality are guaranteed, thus ensuring the use effect of PVC pipes.
  • PVC pipes are very susceptible to external and internal impacts when in use, which makes PVC pipes very easy to be damaged by impact, so PVC pipes are often replaced due to damage, and the existing PVC pipes have poor low temperature resistance, which makes PVC pipes. It is very easy to be damaged in cold areas, so a low temperature and impact resistant PVC pipe is needed to solve the above problems.
  • the utility model provides a low-temperature and impact-resistant PVC pipe, which solves the problem that the PVC pipe is easily subjected to external and internal impact during use, so that the PVC pipe is easily damaged due to impact.
  • the PVC pipes are often replaced due to damage, and the existing PVC pipes have poor low temperature resistance, which makes the PVC pipes easily damaged in cold areas.
  • a low-temperature-resistant and impact-resistant PVC pipe comprising a first protective pipe, the outer surface of the first protective pipe is provided with a number of first fixing blocks, two on the same side.
  • the fronts of the first fixing blocks are respectively movably connected to the bottom ends of the two connecting rods through pin shafts, and the top ends of the connecting rods are movably connected to the front faces of the second fixing blocks through the pin shafts.
  • the surface is fixedly connected with the lower surface of the buffer mechanism, and the left and right ends of the buffer mechanism are respectively fixedly connected with the opposite surfaces of the inner wall of the groove.
  • the groove is opened on the upper surface of the inner wall of the second protection tube, the second protection tube is sleeved on the outer surface of the first protection tube, and a number of second sliders are fixedly connected in the first protection tube.
  • the second slider is slidably connected in the second chute, the second chute is opened on the side of the PVC pipe, and the outer surface of the PVC pipe is fixedly connected with four thermal insulation boards, and the four thermal insulation boards are all connected to the first protective pipe
  • the inner wall overlaps.
  • the cross-sectional shapes of the first protection pipe and the second protection pipe are both set to be circular.
  • the number of the buffer mechanisms is set to four, and the four buffer mechanisms are evenly distributed on the inner wall of the second protection pipe.
  • the buffer mechanism includes two movable sleeves, the two movable sleeves are slidably connected to the outer surface of the fixed rod, the outer surface of the fixed rod is sleeved with two springs, and the two movable sleeves of the spring are sleeved.
  • the ends are respectively fixedly connected with the limit plate and the movable sleeve, and the two limit plates are clamped on the outer surface of the fixed rod.
  • the upper surface of the inner wall of the movable sleeve is fixedly connected with the upper surface of the first slider, the first slider is slidably connected in the first chute, and the first chute is opened in the Fix the upper surface of the rod.
  • the outer surface of the second protective tube is provided with anti-skid patterns, and the second sliding block and the second chute are closely fitted.
  • the low-temperature and impact-resistant PVC pipe is provided with a first protective pipe, a connecting rod, a movable sleeve, a fixed rod and a spring.
  • the PVC pipe drives the first protective pipe to move, so that the first protective pipe drives the connecting rod to move, so that the connecting rod drives the movable sleeve to move on the surface of the fixed rod through the second fixed block, so that the corresponding two movable sleeves are connected to each other.
  • the low-temperature and impact-resistant PVC pipe is provided with a first protective pipe, a second protective pipe and a connecting rod, so that the first protective pipe, the second protective pipe and the connecting rod can cooperate with each other to form a double-layer protective shell.
  • the protective shell can protect the PVC pipe, so that the external force will not directly act on the outer surface of the PVC pipe, so that the PVC pipe is not easily damaged under the action of external impact.
  • the low-temperature and impact-resistant PVC pipe is provided with a thermal insulation board, and the thermal insulation board is fixedly connected to the outer surface of the PVC pipeline, so that the thermal insulation board can block the cold air from the outside, so that the thermal insulation board can keep the PVC pipeline warm.
  • FIG. 1 is a schematic view of the cross-sectional structure of the utility model viewed from the front.
  • FIG. 2 is a schematic structural diagram of the buffer mechanism of the present invention.
  • FIG. 3 is a schematic cross-sectional structure diagram of the buffer mechanism of the present invention viewed from the front.
  • a low-temperature and impact-resistant PVC pipe comprising a first protective pipe 1, and the outer surface of the first protective pipe 1 is provided with several first fixing blocks 2.
  • the fronts of the two first fixing blocks 2 on the same side are respectively movably connected with the bottom ends of the two connecting rods 3 through the pins, and the top ends of the connecting rods 3 are movably connected with the fronts of the second fixing blocks 4 through the pins.
  • the upper surface of the second fixing block 4 is fixedly connected to the lower surface of the buffer mechanism 5
  • the left and right ends of the buffer mechanism 5 are fixedly connected to the opposite surfaces of the inner wall of the groove 6 respectively.
  • the groove 6 is opened on the upper surface of the inner wall of the second protection pipe 7, and by arranging the second protection pipe 7, the second protection pipe 7 can protect the PVC pipe 12, so that the external force is not easy to directly act on the PVC pipe 12.
  • the outer surface makes the PVC pipe 12 not easy to be damaged by external impact, so that the cooperation of the second protective pipe 7 and the first protective pipe 1 can increase the strength of the PVC pipe 12, so that the PVC pipe 12 is not easily squeezed under the action of foreign objects.
  • the PVC pipe 12 is compressed and deformed and then damaged, which ensures the normal service life of the PVC pipe 12.
  • the second protective pipe 7 is sleeved on the outer surface of the first protective pipe 1, and the first protective pipe 1 is fixedly connected with a number of second sliders 10.
  • the second slider 10 By setting the second slider 10, the second slider 10 is slidably connected in the second chute 11, so that the second slider 10 and the second chute 11 cooperate with each other to limit the PVC pipe 12, so that the PVC pipe 12 can be limited.
  • the pipe 12 will not rotate in the first protective pipe 1 under the action of the impact force, the second slider 10 is slidably connected in the second chute 11, the second chute 11 is opened on the side of the PVC pipe 12, and the PVC pipe 12
  • Four thermal insulation boards 13 are fixedly connected to the outer surface of the PVC pipe. By arranging the thermal insulation boards 13, the thermal insulation boards 13 are fixedly connected to the outer surface of the PVC pipes 12, so that the thermal insulation boards 13 can keep the PVC pipes 12 warm, so that the thermal insulation boards 13 are not easily stored in the PVC pipe 12. If it is damaged in a cold environment, the four thermal insulation boards 13 are all overlapped with the inner wall of the first protection pipe 1 .
  • the cross-sectional shapes of the first protection tube 1 and the second protection tube 7 are both set to be circular, the number of buffer mechanisms 5 is set to four, and the four buffer mechanisms 5 are evenly distributed in the second
  • the inner wall of the protective tube 7 and the outer surface of the second protective tube 7 are provided with anti-skid patterns.
  • the outer surface of the second protective tube 7 is provided with anti-skid patterns, which increases the size of the palm and the second protective tube.
  • the buffer mechanism 5 includes two movable sleeves 51 , and the two movable sleeves 51 are slidably connected to the outer surface of the fixed rod 52 .
  • Limit so that the movable sleeve 51 will not shake during movement, so that the movable sleeve 51 can move smoothly along the axial direction of the fixed rod 52.
  • the outer surface of the fixed rod 52 is sleeved with two springs 53. Both ends are fixedly connected with the limit plate 54 and the movable sleeve 51 respectively. By setting the spring 53, the two ends of the spring 53 are fixedly connected with the limit plate 54 and the movable sleeve 51.
  • the movable sleeve 51 can be The spring 53 moves along the axial direction of the fixing rod 52 under the action of the elastic force of the spring 53, and then returns to the initial position.
  • the plate 54 can fix one end of the spring 53 .
  • the upper surface of the inner wall of the movable sleeve 51 is fixedly connected with the upper surface of the first slider 8 , the first slider 8 is slidably connected in the first chute 9 , and the first chute 9 is opened in the
  • the upper surface of the fixing rod 52 is provided with the first sliding block 8 and the first sliding groove 9, so that the first sliding block 8 and the first sliding groove 9 are mutually connected because the first sliding block 8 is slidably connected in the first sliding groove 9.
  • the cooperation can limit the movable sleeve 51, so that the movable sleeve 51 will not shake during movement, so that the movable sleeve 51 can smoothly move along the fixed rod 52 under the action of the connecting rod 3 and the second fixed block 4, so that The movable sleeve 51 will not rotate during movement, so that the spring 53 will not be damaged by twisting.
  • the working principle of the utility model is as follows: S1.
  • S1 When the PVC pipe 12 needs to be protected, move the PVC pipe 12 so that the second slider 10 moves into the second chute 11, and push the PVC pipe 12 backward to make the PVC pipe 12 move.
  • 12 drives the second sliding groove 11 to slide on the outer surface of the second sliding block 10 , because the second sliding block 10 and the second sliding groove 11 are in close contact, the PVC pipe 12 and the first protective pipe 1 are fixed together.
  • the PVC pipe 12 drives the first protective pipe 1 to move, so that the first protective pipe 1 drives the connecting rod 3 to move, so that the connecting rod 3 is driven to move by the second fixing block 4
  • the sleeve 51 moves on the surface of the fixed rod 52 , so that the sliding sleeve drives the first slider 8 to slide in the first sliding groove 9 , so that the corresponding two movable sleeves 51 are separated from each other, so that the movable sleeve 51 drives the spring 53 to extend.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection.
  • Detachable connection, or integral connection may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components.
  • the specific meanings of the above terms in the present invention can be understood through specific situations.

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

Abstract

一种耐低温抗冲击型PVC管道，包括第一防护管（1），第一防护管的外表面设置有若干个第一固定块（2），同一侧面两个第一固定块的正面均通过销轴分别与两个连接杆（3）的底端活动连接，连接杆的顶端通过销轴与第二固定块（4）的正面活动连接，两个第二固定块的上表面与缓冲机构（5）的下表面固定连接；通过设置第一防护管、连接杆、活动套（51）、固定杆（52）和弹簧（53），使PVC管道（12）的内部受到冲击时，PVC管道带动第一防护管运动，使得活动套带动弹簧伸长，使得收缩的弹簧对PVC管道受到的冲击力进行吸收，使得PVC管道不易在冲击力的作用下损坏，避免了因损坏而更换。

Description

一种耐低温抗冲击型PVC管道 技术领域
本实用新型属于PVC管道技术领域，具体为一种耐低温抗冲击型PVC管道。
 背景技术
PVC管是由聚氯乙烯树脂与稳定剂、润滑剂等配合后用热压法挤压成型，是最早得到开发应用的塑料管材，从上个世纪80年代初，国家大力推广应用upvc管，并制定了一系列的政策、制度、标准，也积累了不少经验。发展到今天，已经具备了完善的产品标准、检测方法标准及检测手段、施工工程技术规范等，从而统一了产品的规格尺寸和质量指标，实现了产品的互换性。这说明了PVC管道的发展已经进入了成熟期，产品质量和施工质量均有了保障，从而保证了PVC管道的使用效果。
PVC管道在使用时极易受到外界和内部的冲击，使得PVC管道极易因冲击而损坏，使得PVC管道经常因损坏而进行更换，且现有的PVC管道的抗低温性能较差，使得PVC管道极易在寒冷的区域中损坏，因此需要一种耐低温抗冲击型PVC管道来解决上述问题。
 技术问题
为了克服现有技术的上述缺陷，本实用新型提供了一种耐低温抗冲击型PVC管道，解决了PVC管道在使用时极易受到外界和内部的冲击，使得PVC管道极易因冲击而损坏，使得PVC管道经常因损坏而进行更换，且现有的PVC管道的抗低温性能较差，使得PVC管道极易在寒冷的区域中损坏的问题。
 技术解决方案
为实现上述目的，本实用新型提供如下技术方案：一种耐低温抗冲击型PVC管道，包括第一防护管，所述第一防护管的外表面设置有若干个第一固定块，同一侧面两个第一固定块的正面均通过销轴分别与两个连接杆的底端活动连接，所述连接杆的顶端通过销轴与第二固定块的正面活动连接，两个第二固定块的上表面与缓冲机构的下表面固定连接，所述缓冲机构的左右两端分别与凹槽内壁的相对面固定连接。
所述凹槽开设在第二防护管内壁的上表面，所述第二防护管套接在第一防护管的外表面，所述第一防护管内固定连接有若干个第二滑块，所述第二滑块滑动连接在第二滑槽内，所述第二滑槽开设在PVC管道侧面，所述PVC管道的外表面固定连接有四个保温板，四个保温板均与第一防护管的内壁搭接。
作为本实用新型的进一步方案：所述第一防护管和第二防护管的截面形状均设置为圆形。
作为本实用新型的进一步方案：所述缓冲机构的数量设置为四个，四个缓冲机构均匀的分布在第二防护管的内壁。
作为本实用新型的进一步方案：所述缓冲机构包括两个活动套，两个活动套滑动连接在固定杆的外表面，所述固定杆的外表面套接有两个弹簧，所述弹簧的两端分别与限位板和活动套固定连接，两个限位板均卡接在固定杆的外表面。
作为本实用新型的进一步方案：所述活动套内壁的上表面与第一滑块的上表面固定连接，所述第一滑块滑动连接在第一滑槽内，所述第一滑槽开设在固定杆的上表面。
作为本实用新型的进一步方案：所述第二防护管的外表面设置为防滑纹，所述第二滑块和第二滑槽紧密贴合。
 有益效果
与现有技术相比，本实用新型的有益效果在于：1、该耐低温抗冲击型PVC管道，通过设置第一防护管、连接杆、活动套、固定杆和弹簧，当该PVC管道的内部受到冲击时，PVC管道带动第一防护管运动，使得第一防护管带动连接杆运动，使得连接杆通过第二固定块带动活动套在固定杆的表面运动，使得相对应的两个活动套相互远离，使得活动套带动弹簧伸长，使得收缩的弹簧可对PVC管道受到的冲击力进行吸收，使得PVC管道不易在冲击力的作用下损坏，避免了PVC管道经常因损坏而进行更换。
2、该耐低温抗冲击型PVC管道，通过设置第一防护管、第二防护管和连接杆，使得第一防护管、第二防护管和连接杆相互配合可组成一个双层的防护外壳，使得该防护外壳可对PVC管道进行防护，使得外界的作用力不会直接作用在PVC管道的外表面，使得PVC管道不易在外部的冲击下的作用下受到损害。
该耐低温抗冲击型PVC管道，通过设置保温板，因保温板固定连接在PVC管道的外表面，使得保温板可阻挡外界的冷空气，使得保温板可对PVC管道进行保温。
 附图说明
图1为本实用新型正视的剖面结构示意图。
图2为本实用新型缓冲机构结构示意图。
图3为本实用新型缓冲机构正视的剖面结构示意图。
图中：1第一防护管、2第一固定块、3连接杆、4第二固定块、5缓冲机构、51活动套、52固定杆、53弹簧、54限位板、6凹槽、7第二防护管、8第一滑块、9第一滑槽、10第二滑块、11第二滑槽、12 PVC管道、13保温板。
 本发明的实施方式
下面结合具体实施方式对本专利的技术方案作进一步详细地说明。
如图1-3所示，本实用新型提供一种技术方案：一种耐低温抗冲击型PVC管道，包括第一防护管1，第一防护管1的外表面设置有若干个第一固定块2，同一侧面两个第一固定块2的正面均通过销轴分别与两个连接杆3的底端活动连接，连接杆3的顶端通过销轴与第二固定块4的正面活动连接，两个第二固定块4的上表面与缓冲机构5的下表面固定连接，缓冲机构5的左右两端分别与凹槽6内壁的相对面固定连接。
凹槽6开设在第二防护管7内壁的上表面，通过设置第二防护管7，使得第二防护管7可对PVC管道12进行防护，使得外界的作用力不易直接作用在PVC管道12的外表面，使得PVC管道12不易在外部的冲击下受到损害，使得第二防护管7和第一防护管1相互配合可增加该PVC管道12的强度，使得PVC管道12不易在外物的作用下挤压变形进而发生损坏，保证了该PVC管道12正常的使用寿命，第二防护管7套接在第一防护管1的外表面，第一防护管1内固定连接有若干个第二滑块10，通过设置第二滑块10，因第二滑块10滑动连接在第二滑槽11内，使得第二滑块10和第二滑槽11相互配合可对PVC管道12进行限位，使得PVC管道12不会在冲击力的作用下在第一防护管1内发生转动，第二滑块10滑动连接在第二滑槽11内，第二滑槽11开设在PVC管道12侧面，PVC管道12的外表面固定连接有四个保温板13，通过设置保温板13，因保温板13固定连接在PVC管道12的外表面，使得保温板13可对PVC管道12进行保温，使得保温板13不易在较冷的环境下损坏，四个保温板13均与第一防护管1的内壁搭接接。
具体的，如图1所示，第一防护管1和第二防护管7的截面形状均设置为圆形，缓冲机构5的数量设置为四个，四个缓冲机构5均匀的分布在第二防护管7的内壁，第二防护管7的外表面设置为防滑纹，通过设置第二防护管7，因第二防护管7的外表面设置有防滑纹，增大了手掌与第二防护管7之间的摩擦，使得工作人员可方便的对第二防护管7进行移动，第二滑块10和第二滑槽11紧密贴合，通过设置第二滑槽11，因第二滑槽11与第二滑块10紧密贴合，使得第二滑块10和第二滑槽11相互配合可对PVC管道12进行固定，使得第二滑块10不易在冲击力的作用下在第二滑槽11内滑动，使得PVC管道12可稳固的与第一防护管1进行连接。
具体的，如图2所示，缓冲机构5包括两个活动套51，两个活动套51滑动连接在固定杆52的外表面，通过设置固定杆52，使得固定杆52可对活动套51进行限位，使得活动套51在运动时不会发生晃动，使得活动套51可沿着固定杆52的轴向方向平稳的运动，固定杆52的外表面套接有两个弹簧53，弹簧53的两端分别与限位板54和活动套51固定连接，通过设置弹簧53，因弹簧53的两端与限位板54和活动套51固定连接，当弹簧53收缩时，使得活动套51可在弹簧53弹力的作用下沿着固定杆52的轴向方向运动，进而恢复到初始位置，两个限位板54均卡接在固定杆52的外表面，通过设置限位板54，使得限位板54可对弹簧53的一端进行固定。
具体的，如图3所示，活动套51内壁的上表面与第一滑块8的上表面固定连接，第一滑块8滑动连接在第一滑槽9内，第一滑槽9开设在固定杆52的上表面，通过设置第一滑块8和第一滑槽9，因第一滑块8滑动连接在第一滑槽9内，使得第一滑块8和第一滑槽9相互配合可对活动套51进行限位，使得活动套51在运动时不会发生晃动，使得活动套51可在连接杆3和第二固定块4的作用下平稳的沿着固定杆52运动，使得活动套51在运动时不会发生转动，使得弹簧53不会因扭曲而损坏。
本实用新型的工作原理为：S1、当需要对PVC管道12进行防护时，移动PVC管道12，使得第二滑块10移动到第二滑槽11内，向后推动PVC管道12，使得PVC管道12带动第二滑槽11在第二滑块10的外表面滑动，因第二滑块10和第二滑槽11紧密接触，使得PVC管道12和第一防护管1固定在一起。
S2、其次，当该PVC管道12的内部受到冲击时，PVC管道12带动第一防护管1运动，使得第一防护管1带动连接杆3运动，使得连接杆3通过第二固定块4带动活动套51在固定杆52的表面运动，使得滑套带动第一滑块8在第一滑槽9内滑动，使得相对应的两个活动套51相互远离，使得活动套51带动弹簧53伸长。
S3、最后，当活动套51运动到合适的位置时，活动套51在弹簧53弹力的作用下，使得相对应的两个活动套51相互靠近，使得固定杆52、活动套51、弹簧53和连接杆3相互配合可对PVC管道12受到的冲击力进行吸收。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以通过具体情况理解上述术语在本实用新型中的具体含义。
上面对本专利的较佳实施方式作了详细说明，但是本专利并不限于上述实施方式，在本领域的普通技术人员所具备的知识范围内，还可以在不脱离本专利宗旨的前提下作出各种变化。

Claims (6)

  1. 一种耐低温抗冲击型PVC管道，包括第一防护管（1），其特征在于：所述第一防护管（1）的外表面设置有若干个第一固定块（2），同一侧面两个第一固定块（2）的正面均通过销轴分别与两个连接杆（3）的底端活动连接，所述连接杆（3）的顶端通过销轴与第二固定块（4）的正面活动连接，两个第二固定块（4）的上表面与缓冲机构（5）的下表面固定连接，所述缓冲机构（5）的左右两端分别与凹槽（6）内壁的相对面固定连接；
    所述凹槽（6）开设在第二防护管（7）内壁的上表面，所述第二防护管（7）套接在第一防护管（1）的外表面，所述第一防护管（1）内固定连接有若干个第二滑块（10），所述第二滑块（10）滑动连接在第二滑槽（11）内，所述第二滑槽（11）开设在PVC管道（12）侧面，所述PVC管道（12）的外表面固定连接有四个保温板（13），四个保温板（13）均与第一防护管（1）的内壁搭接。
  2. 根据权利要求1所述的一种耐低温抗冲击型PVC管道，其特征在于：所述第一防护管（1）和第二防护管（7）的截面形状均设置为圆形。
  3. 根据权利要求1所述的一种耐低温抗冲击型PVC管道，其特征在于：所述缓冲机构（5）的数量设置为四个，四个缓冲机构（5）均匀的分布在第二防护管（7）的内壁。
  4. 根据权利要求1所述的一种耐低温抗冲击型PVC管道，其特征在于：所述缓冲机构（5）包括两个活动套（51），两个活动套（51）滑动连接在固定杆（52）的外表面，所述固定杆（52）的外表面套接有两个弹簧（53），所述弹簧（53）的两端分别与限位板（54）和活动套（51）固定连接，两个限位板（54）均卡接在固定杆（52）的外表面。
  5. 根据权利要求4所述的一种耐低温抗冲击型PVC管道，其特征在于：所述活动套（51）内壁的上表面与第一滑块（8）的上表面固定连接，所述第一滑块（8）滑动连接在第一滑槽（9）内，所述第一滑槽（9）开设在固定杆（52）的上表面。
  6. 根据权利要求1所述的一种耐低温抗冲击型PVC管道，其特征在于：所述第二防护管（7）的外表面设置为防滑纹，所述第二滑块（10）和第二滑槽（11）紧密贴合。
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