CN2417774Y

CN2417774Y - Adjustable armrest lifting mechanism

Info

Publication number: CN2417774Y
Application number: CN 00217367
Authority: CN
Inventors: 陈千奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-19
Filing date: 2000-04-19
Publication date: 2001-02-07
Anticipated expiration: 2010-04-19

Abstract

The utility model relates to an adjustable armrest lifting mechanism, which comprises a supporting tube and an armrest support, wherein, the armrest support is sheathed outside the supporting tube. The upper end of the supporting tube is provided with a gear sleeve; the center of the gear sleeve is provided with a cavity; the periphery of the cavity which is positioned on the gear sleeve is distributed with a plurality of grooves; a deflector rod is positioned in the cavity of the gear sleeve; lugs which are matched with the grooves are arranged on the deflector rod; the upper end of the deflector rod is fixedly connected with one end of a lever; the middle part of the lever is hinged on the armrest support; the other end of the lever is hinged with one end of a connecting rod; the other end of the connecting rod extends out of the armrest support; the back end of the connecting rod is provided with a spring. The utility model can realize the height adjustment of an armrest, and the use is convenient.

Description

The adjustable armrest elevating mechanism

The utility model relates to a kind of elevating mechanism of adjustable armrest.

It mostly is non-adjustable highly greatly the conventional seat handrail, however different people be not quite similar for the requirement of the comfortable shelves high of its arm, existing handrail obviously can not reach this requirement.

The purpose of this utility model is to overcome the above-mentioned defective of prior art, provides a kind of handrail height adjustable handle lifting mechanism.

The utility model comprises stay pipe, stay pipe is arranged with the handrail bearing outward, be provided with the tooth cover in the upper end of stay pipe, tooth cover central authorities are cavity, around tooth cover upper plenum, overlap the axis direction and be distributed with several groove along tooth, dead man is arranged in the cavity of tooth cover, and dead man is provided with the projection that matches with groove, one end of the upper end of dead man and lever is affixed, the middle part of lever is hinged on the handrail bearing, one end of the other end of lever and connecting rod is hinged, and the other end of connecting rod stretches out outside the handrail bearing, and the rear end of connecting rod is provided with spring.

Under normal condition, because the projection on the dead man is trapped in the groove of tooth cover, the handrail bearing can not move up and down on stay pipe, make its pressure that overcomes spring drive the lever rotation when pushing lower link, the lever drives driving lever makes the projection on the dead man withdraw from groove in the tooth cover, this moment, the handrail bearing just can freely move up and down on stay pipe, move the handrail bearing to suitable position, unclamp connecting rod, connecting rod drives lever makes the projection on the dead man enter into the corresponding grooves that tooth overlaps, the handrail bearing is fixed, realized the adjustment of a handrail height.

By the above-mentioned course of work as can be seen, the utility model can be realized the height of armrests adjustment, and easy to use.

Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.

Fig. 1: the configuration diagram of present embodiment;

The A-A view of Fig. 2: Fig. 1;

The B-B view of Fig. 3: Fig. 1.

As shown in the figure, present embodiment comprises stay pipe 1, the stay pipe 1 outer handrail bearing 2 that is arranged with, be provided with tooth cover 3 in the upper end of stay pipe 1, tooth cover 3 central authorities are cavity, tooth overlap 3 upper plenums around overlap 3 axis directions along tooth and be distributed with several groove, dead man 4 is arranged in the cavity of tooth cover 3, and dead man 4 is provided with the projection that matches with groove, one end of the upper end of dead man 4 and lever 5 is affixed, and the middle part of lever 5 is hinged on the handrail bearing 2, and an end of the other end of lever 5 and connecting rod 6 is hinged, the other end of connecting rod 6 stretches out outside handrail bearing 2, and the rear end of connecting rod 6 is provided with spring 7.

Claims

1, a kind of elevating mechanism of adjustable armrest, comprise stay pipe and handrail bearing, it is characterized in that: handrail bearing (2) is set in outside the stay pipe (1), be provided with tooth cover (3) in the upper end of stay pipe (1), tooth cover (3) central authorities are cavity, the groove that is distributed with several on every side along tooth cover (3) axis direction at tooth cover (3) upper plenum, dead man (4) is arranged in the cavity of tooth cover (3), and dead man (4) is provided with the projection that matches with groove, one end of the upper end of dead man (4) and lever (5) is affixed, the middle part of lever (5) is hinged on the handrail bearing (2), one end of the other end of lever (5) and connecting rod (6) is hinged, the other end of connecting rod (6) stretches out outside handrail bearing (2), and the rear end of connecting rod (6) is provided with spring (7).