US 11,359,659 B2Granted

Locking device

AssigneeBeijing Surgerii Technology Co., Ltd.

InventorsKai Xu, Tianlai Dong, Zhengchen Dai, Jiangran Zhao, Zhixiong Yang, Bo Liang

Life of this patent

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Abstract

Disclosed is a locking device, comprising an outer sleeve (1) and at least one locking unit (2) located in the outer sleeve (1), wherein the locking unit (2) is formed by connecting a plurality of pressing blocks (3), a gap (5) is provided between two adjacent ones of pressing blocks (3), a rod locking hole (6) is provided in the gap (5), and a set screw hole (7) is provided on the outer sleeve (1) at a position corresponding to the locking unit (2); and when a set screw is screwed into the set screw hole (7) to directly or indirectly press the locking unit (2), the locking unit (2) deforms and drives the pressing blocks (3) to tightly press rods (8, 9) mounted in the respective rod locking holes (6) at the same time.

Claims9

Dependent claims

A locking device, comprising:

at least one locking unit, the locking unit comprising a plurality of pressing blocks connected together, at least one gap between adjacent pressing blocks, and at least one first rod locking hole in the at least one gap;
an outer sleeve configured to accommodate the at least one locking unit, the outer sleeve comprising a locking part hole;
and
a locking part disposed in the locking part hole, an end of the locking part being configured to touch and press at least one of the plurality of pressing blocks of the at least one locking unit to press the plurality of pressing blocks against the interior side of the outer sleeve to change a size of the at least one first rod locking hole,
wherein the plurality of pressing blocks are distributed in a shape of a fan;
the locking unit further comprises a sharp groove in middle of the fan and having a tip pointing to a center of the fan, and the locking device further comprises a wedge block accommodated in the sharp groove.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/329,238Filed 30 Aug 2017
Priority: CN 201610797613.131 Aug 2016
Published: US 2019/0249704 A115 Aug 2019
Granted: 14 Jun 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16B 7/0433
Clamping or clipping connections: for rods or tubes being in parallel relationship
F16B 2/065
External, i.e. with contracting action: using screw-thread elements
F16B 11/002
Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding: by pressing the elements…
F16B 21/20
By separate parts: for bolts or shafts without holes, grooves, or notches for locking members