BACK SUPPORT UNIT AND BACK SUPPORT

A back support unit and a back support. The back support unit comprises a supporting assembly (100), wherein the supporting assembly (100) comprises a supporting rod (1), a connector (2) and a limiting assembly. The connector (2) comprises a limiting portion (21) located outside the supporting rod (...

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Bibliographische Detailangaben
Hauptverfasser:	XIAO, Yulong, WAN, Yongguang
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ADVERTISING BLASTING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LABELS OR NAME-PLATES LIGHTING MECHANICAL ENGINEERING PHYSICS SEALS SIGNS STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A back support unit and a back support. The back support unit comprises a supporting assembly (100), wherein the supporting assembly (100) comprises a supporting rod (1), a connector (2) and a limiting assembly. The connector (2) comprises a limiting portion (21) located outside the supporting rod (1), wherein the limiting portion (21) is provided with an avoidance opening (211) and a limiting recess (212). The limiting assembly comprises a positioning pin (31), a limiting cylinder (32) and an elastic member (33), wherein the limiting cylinder (32) is sleeved outside the positioning pin (31) and can move in the axial direction of the positioning pin (31). The limiting cylinder (32) comprises an unlocking section (321), a middle section (322) and a limiting section (323), which are sequentially connected to one another, wherein the unlocking section (321) penetrates the supporting rod (1) and is exposed outside the supporting rod (1); and the limiting section (323) is located in the supporting rod (1), and the