Hefei guoan industry & trade Co., Ltd the crossing of north tongling road and tianshui road. Hefei city, anhui province, China.
Our company and products enjoy a good reputation both in domestic and abroad market. Our umbrella products have been constantly exporting to Europe, America, Southeast Asia, MID-east and Japan. With years of professional experience we are able to provide quality products according to your requirements, also we have gained some special international certifications from different areas to make sure our product available all over the world.

We have own factories, and high quality is guaranteed by a close and long-term cooperation with select subcontractors, Bango umbrella can assure our clients of competitive prices, top quality, timely delivery and good follow-up services. We sincerely welcome all potential clients all around the world to visit our factory and set up a long term and win-win business relationship with us.

FIELD OF TECHNOLOGY:
The utility model involving valve device. Concrete is of three layer structure QingYuSan.
TECHNICAL BACKGROUND:
QingYuSan is a kind of people in daily life often use items, The existing QingYuSan either only shading effect, rainproof poor effect. Either only rainproof effect, so that the effect is not ideal. So imagine provides a multilayer QingYuSan.

INVENTION OF CONTENT:
The utility model is designed to provide a three-layer structure of QingYuSan. By adopting a three-layer structure, a layer of ventilation, layer fabric sunshade, three layer fabric rainproof. According to the principle of air convection, in tertiary layer fabric between heat conduction into convection. At the same time in the tertiary layer formed between fabrics of built on stilts ventilated thermal insulation layer, make fluctuation two layers generate temperature. So people even in the hot sun also won't feel hot, heavy rains next would not be walking in the rain. Gives people a better life, which is the existing QingYuSan upgrading of products.

THE UTILITY MODEL USING TECHNICAL PLAN:
A three-layer structure of QingYuSan, includes base: Base top installs a pillar, pillar bait equipped with locking ring, locking ring connected to the next beam, under the crossbar are installed on top umbrella dish, the umbrella plate are installed on the headquarter, the headquarter are installed on the umbrella face, the installation of several bottom headquarter rods, connecting rod connected to the headquarter and under headquarter in, in the headquarter in umbrella are installed on face, under the headquarter are installed on under an umbrella face, pillar top installs a beam in, beam in front-end installation several hinge link enable delegates, hinge link enable delegates connected to the next headquarter, hinge link enable delegates are installed below under an umbrella plate.
The headquarter, stated in the headquarter, under some root were headquarter skeleton consists of frame body.

THE ADVANTAGES OF THE UTILITY MODEL:
The utility model by using three layer structure, A layer of ventilation, layer fabric sunshade, three layer fabric rainproof. According to the principle of air convection heat transfer in tertiary layer fabric between become convection. At the same time in the tertiary layer formed between fabrics of built on stilts ventilated thermal insulation layer, make fluctuation two layers generate temperature. So people even in the hot sun also won't feel hot, heavy rains next would not be walking in the rain. Gives people a better life, is the existing QingYuSan the update products.