国家/地区 中国（18）
IPC部 F（18） B（5） C（4）
IPC大类 F16（18）
IPC小类 F16L（18） C08K（4） C08L（4）
B29C（2） B29D（2） F24D（2）
IPC F16L057/02（18）
发明人 LI Y（2） MA Z（2） TANG Z（2）
WANG Y（2） YU J（2） ZHAO M（2）
公开年 2022（8） 2021（3） 2023（3） 2018（2） 2020（2）
申请年 2022（7）  2021（5）  2020（4）  2017（2） 
专利权人 NINGXIA QING.（2）

Polyethylene solid wall pipe has flocculent layer graphene and high density polyethylene layer that are provided with group of radiating holes connected with each other.

YUAN S

Cold-resistant and low-temperature resistant metal hose used in aviation, aerospace, petroleum, chemical engineering, metallurgy, electric power, paper making, wood, textile, construction, medicine, food, tobacco, and transportation.

ZHANG D, HUANG R, CHEN S

Aramid fiber winding composite pipeline for conveying hydrogen, has wearable layer located in inner layer of hydrogen blocking layer, where wearable layer is wearable plastic and is provided between core tube layer and outer protective layer.

WANG Y, MA Z, ZHAO M, LI Y, YU J, TANG Z

Air conditioner radiating copper pipe, has pipe body provided with heat exchange groove and surface of pipe body is provided with graphene anti-oxidant layer.

FANG Y

Specific pressure-resistant protective stainless steel pipe for use as furniture kitchenware, has main body inserted and connected with screw rod through screw thread groove, where screw rod is limited and set in connecting sleeve.

HU Q, DUAN C

Electric melting pipe fitting for high voltage composite pipeline, comprises outer protective layer from inside to outside, where material of hydrogen blocking layer is polyamide resin composition, where polyamide resin composition contains polyamide resin, and particulate inorganic compound.

MA Z, WANG Y, ZHAO M, YU J, LI Y, TANG Z

Modified polyethylene wearable composite pipe for water supply and drainage of municipal and building, has glass fiber line that is provided with multiple layers on outer layer pipe structure, inner tube body and outer layer pipe body fixedly connected with the inner layer pipe body.

LIN J

Oil pipe protecting device of steel grabbing machine, has compression spring whose one end is fixedly connected with protective inner shell whose outer surface is rotatably connected with sealing cover.

LIN S, XU J, XU R

Polybutylene composite pipe used in hot spring transportation, comprises anti-corrosion outer layer, thermal insulation layer and working inner layer from outside to inside, where working inner layer is made of polybutene material and insulation layer is made of polyethylene foamed plastic.

QIN X, YI Z, WANG L, JIN J, LIANG Y

Heat preservation type plastic pipeline for conveying of liquid, gas and other medium, has inner wall of second anti-cracking layer fixedly connected with wearable layer.

BIAN Y