Invention Grant
- Patent Title: Monitoring and measuring apparatuses able to display actual deflection angle of lifting-hook , and crane
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Application No.: US17059969Application Date: 2020-08-03
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Publication No.: US11136225B1Publication Date: 2021-10-05
- Inventor: Handing Lin
- Applicant: Handing Lin
- Applicant Address: CN Fujian
- Assignee: Handing Lin
- Current Assignee: Handing Lin
- Current Assignee Address: CN Fujian
- Priority: CN202010302204.6 20200416,CN202010615863.5 20200701
- International Application: PCT/CN2020/106574 WO 20200803
- International Announcement: WO2020/228866 WO 20201119
- Main IPC: B66C1/40
- IPC: B66C1/40 ; G01B21/22

Abstract:
A monitoring detection device and crane for displaying real-time hook bias angle, characterized in that a fixed pulley assembly a1 of a crane is hung on a lifting lug b2 of a crane boom b1 by a shackle a5 through a connector a3.
the connector a3 is connected to the fixed pulley assembly a1 through a articulated shaft a2 which is arranged in a direction perpendicular to the axis of a fixed pulley; a platform surface perpendicular to a pulley block force application line or a line parallel to the pulley block force application line is arranged on the connector to be used to. Beneficial effects: the real-time hook bias angle can be accurately displayed when the crane is lifting: Beneficial effects: the real-time hook bias angle can be accurately displayed when the crane is lifting.
the connector a3 is connected to the fixed pulley assembly a1 through a articulated shaft a2 which is arranged in a direction perpendicular to the axis of a fixed pulley; a platform surface perpendicular to a pulley block force application line or a line parallel to the pulley block force application line is arranged on the connector to be used to. Beneficial effects: the real-time hook bias angle can be accurately displayed when the crane is lifting: Beneficial effects: the real-time hook bias angle can be accurately displayed when the crane is lifting.
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