Title:
LOW-TEMPERATURE-RESISTANT AND IMPACT-RESISTANT PVC PIPELINE
Document Type and Number:
WIPO Patent Application WO/2022/094849
Kind Code:
A1
Abstract:
A low-temperature-resistant and impact-resistant PVC pipeline, comprising a first protective pipe (1); several first fixing blocks (2) is provided on the outer surface of the first protective pipe; the front faces of the two first fixing blocks on the same side are movably connected to the bottom ends of two connection rods (3) respectively by means of pin shafts, the top ends of the connection rods are movably connected to the front faces of second fixing blocks (4) by means of pin shafts, and the upper surfaces of the two second fixing blocks are fixedly connected to the lower surface of a buffer mechanism (5). By providing the first protective pipe, the connection rods, a movable sleeve (51), a fixing rod (52) and a spring (53), when the interior of a PVC pipeline (12) is impacted, the PVC pipeline drives the first protective pipe to move, so that the movable sleeve drives the spring to stretch, thus the retracted spring absorbs an impact force on the PVC pipeline, and the PVC pipeline is not easily damaged under the action of the impact force, avoiding replacement caused by damage.
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Inventors:
HU ZHENGWEI (CN)
Application Number:
PCT/CN2020/126722
Publication Date:
May 12, 2022
Filing Date:
November 05, 2020
Export Citation:
Assignee:
XUZHOU XINLONG PIPE IND CO LTD (CN)
International Classes:
F16L9/14; F16L57/02; F16L59/02
Foreign References:
| CN208651970U | 2019-03-26 | |||
| CN210156145U | 2020-03-17 | |||
| CN207893322U | 2018-09-21 | |||
| JP2006052770A | 2006-02-23 | |||
| CN108180349A | 2018-06-19 | |||
| CN206175952U | 2017-05-17 | |||
| CN207421553U | 2018-05-29 | |||
| CN207378314U | 2018-05-18 | |||
| CN208619883U | 2019-03-19 |
Attorney, Agent or Firm:
SUQIAN YONGTAI RUIBO INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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