CN104970578A

CN104970578A - Shake-proof backrest chair

Info

Publication number: CN104970578A
Application number: CN201410150554.XA
Authority: CN
Inventors: 林基
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2015-10-14

Abstract

The invention provides a shake-proof backrest chair and aims to provide the shake-proof backrest chair which is usually used as a common chair in household and public fields and can be quickly and conveniently turned into a shake-proof apparatus in a short time when earthquake comes. The shake-proof backrest chair is composed of leg frames, a backrest frame, a movable backrest protective cover, two fixed armrest front frames, two movable armrest straight rods and a movable seat pad board. The side surfaces of the two side rods of the backrest frame are both provided with through grooves of which the lower parts are linear in shape and the front upper parts are small-arc-shaped. The tops of side surfaces of the two side rods of the backrest frame are both provided with semi-circular through shaft pin grooves. Shaft pins are arranged at both left ends and right ends at both the upper edge and the lower edge of the movable backrest protective cover. The upper two shaft pins are respectively embedded into the semi-circular through shaft pin grooves at the top of the two side rods of the backrest frame. The lower two shaft pins are respectively sleeved in the bottoms of the through grooves at the two sides of the two side rods of the backrest frame. The back sides of the upper parts of the fixed armrest front frames are connected to the front ends of the two movable armrest straight rods through movable hinges. The shake-proof backrest chair is simple in structure, is convenient and quick to operate, integrates the function of both usual application and emergency application, and is very suitable as an emergency earthquake-proof apparatus in both household and public fields.

Description

Shockproof chair

Technical field

The present invention relates to a kind of chair, particularly a kind of shockproof chair used in family and public place.

Background technology

Earthquake is the serious natural calamity being also difficult to advance notice in advance at present, and its generation once in a while can cause life and property loss to the mankind, and the mankind are seeking device earthquake being carried out to life protection always, particularly at the vibration abatement that family and public place use., also do not have now known at ordinary times when conventional chair uses, can the efficient and convenient shockproof chair of family and public place converting vibration abatement at short notice when coming earthquake.

Summary of the invention

The object of this invention is to provide a kind of in family and public place at ordinary times when conventional chair uses, can the efficient and convenient shockproof chair converting vibration abatement at short notice when coming earthquake.

The present invention is achieved by following technical proposals.

The shockproof chair of the present invention is made up of foot rest, back rest, movable back over cap, fixed armrest side arm, movable hand rail straight-bar, sliding seat backing plate, back rest and foot rest are fixedly connected, the side of back rest two side lever is all provided with the penetrating groove that bottom is linear, front upper part is little arc, and the side top of back rest two side lever is all provided with semicircle penetrating pin groove; On movable back over cap, following two ends, left and right are all provided with pivot pin, and two pivot pins of top are embedded in the penetrating pin groove of semicircle in masthead portion, back rest both sides respectively, and two following pivot pins are enclosed within the penetrating bottom land of back rest two side lever side respectively.Left and right fixed armrest is installed on foot rest front upper part, is all linked by hinges on rear side of two fixed armrest tops with movable hand rail straight-bar front end, two, left and right, and inclined-plane, two movable hand rail straight-bar rear ends is embedding respectively to be leaned against on two side lever front bevels of back rest.Two active pins are enclosed within the pin hole of left and right two straight-bars above foot rest respectively, back, the sliding seat backing plate left and right sides leans against on two active pins respectively, and back, the sliding seat backing plate left and right sides is connected by rolling pivot pin respectively with two straight-bar rear portions, left and right above foot rest.

This practical not only structure is simple, swift and convenient to operate, and, emergent dual-purpose at ordinary times, be well suited for family and public place and make emergent vibration abatement and use.

Accompanying drawing illustrates:

Below in conjunction with drawings and Examples, the present invention will be further described.

Fig. 1 is that one of the present invention faces structure chart.

Fig. 2 is a kind of side-looking structure chart of the present invention.

Detailed description of the invention

According to Fig. 1, Fig. 2, the shockproof chair of the present invention is made up of foot rest 1, back rest 2, movable back over cap 3, fixed armrest side arm 4, movable hand rail straight-bar 5, sliding seat backing plate 6, back rest 2 and foot rest 1 are fixedly connected, the side of back rest 2 liang of side levers is all provided with the penetrating groove 7 that bottom is linear, front upper part is little arc, and the side top of back rest 2 liang of side levers is all provided with semicircle penetrating pin groove 8; On movable back over cap 3, following two ends, left and right are all provided with pivot pin 9, and two pivot pins 9 of top are embedded in the penetrating pin groove 8 of semicircle in masthead portion, back rest both sides respectively, and two following pivot pins 9 are enclosed within respectively at the penetrating groove 7 end of back rest two side lever side.Left and right fixed armrest side arm 4 is installed on foot rest 1 front upper part, all linked by hinges 10 with movable hand rail straight-bar 5 front end, two, left and right on rear side of two fixed armrest side arm 4 tops, inclined-plane, two movable hand rail straight-bar 5 rear ends is embedding respectively to be leaned against on two side lever front bevels of back rest 2.Two active pins 11 are enclosed within the pin hole 12 of left and right two straight-bars above foot rest 1 respectively, front, sliding seat backing plate 6 left and right sides leans against on two active pins 11 respectively, and back, sliding seat backing plate 6 left and right sides and foot rest 1 are connected by rolling pivot pin 13 at two straight-bar rear portions, left and right above respectively.

Shockproof chair uses when conventional chair at ordinary times, converts vibration abatement to use when coming earthquake:

1, the hinges 10 on rear side of two fixed armrest side arm 4 tops and between movable hand rail straight-bar 5 front end, two, left and right is thrown off, the rear end of the two movable hand rail straight-bars 5 in left and right is lifted and stretches;

2, by movable back over cap 3 from up pull-up back rest 2, two following pivot pins 9 are embedded in the top deep-slotted chip breaker of the penetrating groove 7 of little arc in masthead portion, back rest both sides respectively, pressure movable back over cap 3 top, movable back over cap 3 is kept flat, and arc shaft cotter way 8 internal fixtion that two pivot pins 9 of movable back over cap 3 top are embedded on the rear end face of the two movable hand rail straight-bars 5 in left and right is lived;

3, two active pins 11 be enclosed within respectively in the pin hole 12 of left and right two straight-bars above foot rest 1 are thrown off, turn down sliding seat backing plate 6, make sliding seat backing plate 6 upright, namely convert vibration abatement to;

4, people bends over to enter shockproof chair movable back over cap 3 times spaces, can prevent earthquake from causing tenesmus thing to the shock of human body.

Claims

1. a shockproof chair, it is characterized in that being made up of foot rest (1), back rest (2), movable back over cap (3), fixed armrest side arm (4), movable hand rail straight-bar (5), sliding seat backing plate (6), back rest (2) and foot rest (1) are fixedly connected, the side of back rest (2) two side lever is all provided with the penetrating groove (7) that bottom is linear, front upper part is little arc, and the side top of back rest (2) two side lever is all provided with semicircle penetrating pin groove (8); The upper two ends, following left and right of movable back over cap (3) are all provided with pivot pin (9), two pivot pins (9) of top are embedded in the penetrating pin groove of semicircle (8) in masthead portion, back rest both sides respectively, and two following pivot pins (9) are enclosed within the penetrating groove (7) of back rest two side lever side respectively; Left and right fixed armrest side arm (4) is installed on foot rest (1) front upper part, all linked by hinges (10) with movable hand rail straight-bar (5) front end, two, left and right on rear side of two fixed armrest side arm (4) tops, two movable hand rail straight-bar (5) inclined-planes, rear end are embedding respectively to be leaned against on two side lever front bevels of back rest (2); Two active pins (11) are enclosed within the pin hole (12) of left and right two straight-bars above foot rest (1) respectively, sliding seat backing plate (6) back, the left and right sides leans against on two active pins (11) respectively, and sliding seat backing plate (6) back, the left and right sides and foot rest (1) are connected by rolling pivot pin (13) at two straight-bar rear portions, left and right above respectively.