Boe Technology Group Co., Ltd.

Boe (hebei) Mobile Display Technology Co., Ltd.

China National Petroleum Corporation

Cnpc Drilling Research Institute

Beijing Petroleum Machinery Factory

Chunhua Zhang

Jian Li

Yongjun Liao

Meng Li

Chen Wang

Gang Li

Yu Tan

Jianchao Zhang

Tiejun Li

Hongqiang Fan

Yanfu Huang

Guanghua Liu

Lianyang Zou

Zhiyong Zhou

Xingming Pan

Qingkui Wu

Xinli Liu

Zhangjian Li

Shikai Tao

Maojia Wang

Wenjing Yang

Guoxing Yan

Hongjiang Shi

Qian Shi

Chengqin Sun

An information transmission apparatus for logging while drilling comprises a hollow drilling rod and at least one cable. The drilling rod comprises at least one first drilling rod member and at least one second drilling rod member spliced to each other alternately. The first drilling rod member comprises a through hole, and the second drilling rod member comprises a stepped hole. The cable comprises a fixed end, a connected end, and a folded portion connect the fixed end to the connected end. Each of the cables is fixed in the stepped hole through a fixed end or is connected to a connected end of an adjacent cable. The connected end may be stretched along the stepped hole, and stretched through the through hole to be electrically connected to a logging instrument or a fixed end of the adjacent cable. The apparatus provides protection for a cable through a hollow drilling rod, thereby improving the transmission reliability.

Information transmission apparatus for logging while drilling

The present disclosure relates to the field of display technology, in particular to a test fixture, comprising a pressing connection mechanism (), an eccentric mechanism (), and a working carrier (), the pressing connection mechanism () and the working carrier () being arranged correspondingly, and the rotation of the eccentric mechanism () driving the pressing connection mechanism () to move up and down in a Y direction so as to conduct a signal pressing connection test for a tested product on the working carrier (). The test fixture has a simple structure and steady properties, easy to be operated and maintained conveniently.

Test fixture and test method using the same

A liquid crystal display screen detecting device is provided. The liquid crystal display screen detecting device comprises: a supporting unit configured to have two opposed support frames; a conveying unit configured to carry a liquid crystal display screen to be detected and move on the support frames; a driving unit configured to drive the conveying unit; and a detecting unit configured to detect the liquid crystal display screen to be detected.

Liquid crystal display screen detecting device

Growing community of inventors

Beijing, China

Chunhua Zhang