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Title:
SUPPORT LEG TELESCOPIC APPARATUS, WORK MACHINE, AND USE METHOD
Document Type and Number:
WIPO Patent Application WO/2024/008150
Kind Code:
A1
Abstract:
A support leg telescopic apparatus, a work machine, and a use method. The apparatus comprises a base body (100), a first telescopic arm (110), a second telescopic arm (120), a first sensing element (130), and a second sensing element (140); the base body is provided with a first inner cavity (102); the first telescopic arm is connected to the first inner cavity in a drawing manner, and the first telescopic arm is provided with a second inner cavity (112); the second telescopic arm is connected to the second inner cavity in a drawing manner; the first sensing element is connected to a cavity wall of the first inner cavity; the second sensing element is connected to the first telescopic arm and the second telescopic arm by means of a slide assembly (200); the first telescopic arm and the second telescopic arm are adapted to so to cause the first sensing element and the second sensing element to switch between a recognized position and an unrecognized position by means of telescopic motion; and when in the recognized position, the first telescopic arm and the second telescopic arm are both at preset extension distances. An operator can determine whether the first telescopic arm and the second telescopic arm extended into place according to a sensing signal, consequently ensuring that the support leg is in a completely opened state.

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Inventors:
LIU XIAOSHUN (CN)
DENG BIAO (CN)
Application Number:
PCT/CN2023/106082
Publication Date:
January 11, 2024
Filing Date:
July 06, 2023
Export Citation:
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Assignee:
SANY AUTOMOBILE MFG CO LTD (CN)
International Classes:
B66C23/78; B66C23/80; B66C23/88; E04G21/04
Foreign References:
CN115321390A2022-11-11
US20070084813A12007-04-19
CN102431914A2012-05-02
CN112239151A2021-01-19
CN203402864U2014-01-22
CN203532409U2014-04-09
CN208515566U2019-02-19
CN212721350U2021-03-16
CN216869442U2022-07-01
JP2007283864A2007-11-01
US20060043718A12006-03-02
US20120285031A12012-11-15
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
Download PDF:
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