US 11,654,579 B2
Grabbing device
Xinfei Wan, Suzhou (CN); Wenzhong Kai, Suzhou (CN); and Haibo Zhi, Suzhou (CN)
Assigned to Suzhou Diu-an Robot & Automation Co., Ltd., Suzhou (CN)
Appl. No. 17/256,557
Filed by Suzhou Dituan Robot & Automation Co., Ltd., Suzhou (CN)
PCT Filed Apr. 18, 2019, PCT No. PCT/CN2019/083130
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/048136, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 201811019336.7 (CN), filed on Sep. 3, 2018.
Prior Publication US 2021/0252719 A1, Aug. 19, 2021
Int. Cl. B25J 15/00 (2006.01)
CPC B25J 15/0023 (2013.01) [B25J 15/0033 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A grabbing device for grabbing an object, comprising:
a connection base,
a gas pipeline provided in the connection base,
a grabbing member having a hollow cavity and connected to the connection base,
a filter layer provided between the hollow cavity and the gas pipeline, and particles filled in the hollow cavity and capable of facilitating fluid flow in the hollow cavity,
wherein:
the gas pipeline is in communication with the hollow cavity by the filter layer, with the filter layer preventing the particles from entering the gas pipeline;
the grabbing member is made of a flexible material, permitting the grabbing member to expand when inflated by gas, and then recess according to a shape of a surface of the object after the grabbing member contacts the object and upon deflation by the removal of the gas; and
the particles have a flexible state and a rigid state, wherein the particles maintain the flexible state when the grabbing member is inflated, and the particles are pressed into the rigid state when deflated and the grabbing member is recessed; and
the connection member comprises:
a connection flange,
a connection lid, and
a connection cover;
wherein:
the connection flange, the connection lid and the connection cover are successively connected,
the grabbing member is partially located in the connection cover and the connection lid, and
the filter layer is located in the connection lid.