Height-adjustable parallel bars for physical education

The utility model discloses height adjusting type physical education parallel bars which comprise a base, a first lead screw and a second lead screw, the first lead screw and the second lead screw are arranged in the base, and the second lead screw is arranged on the rear side of the first lead scre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	YUAN SHULI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMUSEMENTS APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING BALL GAMES GAMES HUMAN NECESSITIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS SPORTS TRAINING EQUIPMENT TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model discloses height adjusting type physical education parallel bars which comprise a base, a first lead screw and a second lead screw, the first lead screw and the second lead screw are arranged in the base, and the second lead screw is arranged on the rear side of the first lead screw; the third lead screw is arranged in the base, and the outer walls of the first lead screw, the second lead screw and the third lead screw are all connected with supporting rods; and the worm gear is installed on the outer wall of the bottom end of the first lead screw, the worm gear is connected with the worm in a meshed mode, and a cross rod is fixed to the top end of the supporting rod. According to the height-adjustable parallel bars for physical education, when the first lead screw rotates, the second lead screw and the third lead screw can be driven to rotate together, so that the four supporting rods are driven to ascend and descend simultaneously, the supporting rods drive the transverse rod to ascend and