Shandong Lede Machinery Co., Ltd.

Aqua Casting Inc.

Tonghu Zhang

Bo Chen

Yuanshui Li

Chengfei Pan

Ming Li

Xinguo Chen

A quick connection clamping hoop, including an upper clamping hoop body and a lower clamping hoop body that are both in a semi-annular shape; where the upper clamping hoop body and the lower clamping hoop body each have one end as a plug connecting end and the other end as a connecting end; connecting ends of the upper clamping hoop body and the lower clamping hoop body each are provided with a lug, and the connecting ends of the two are connected together via a bolt passing through lugs; plug connecting ends of the two are connected together via a plug connecting mechanism disposed at the plug connecting ends of the two.

Quick connection clamping hoop

A self-sealing butterfly valve includes a valve body, wherein a fluid passage is provided in the valve body, a valve plate of which an outer surface is covered with an elastic sealing layer is provided within the fluid passage, an upper portion of the valve plate is dynamically connected with a driving shaft which is rotatably connected to the valve body, a lower portion of the valve plate is rotatably connected with a supporting shaft which is connected to the valve body, the elastic sealing layer&#x2014;at outer edges of two end faces of the valve plate axially protrudes outwardly, forming two ring lips attached to an inner wall of the fluid passage, and the ring lips are gradually thicker from outside to inside, so that inner ring faces of the ring lips are inclined faces.

Self-sealing butterfly valve

Growing community of inventors

Shandong, China

Tonghu Zhang