CN2730654Y

CN2730654Y - Multi-castor device for climing stair

Info

Publication number: CN2730654Y
Application number: CN 200420081315
Authority: CN
Inventors: 袁耀
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-02
Filing date: 2004-08-02
Publication date: 2005-10-05
Anticipated expiration: 2014-08-02

Abstract

The utility model provides a multi-castor device for climbing stair. The utility model is characterized in that: the multi-castor is provided with two slices of symmetrical multi-castor frames; an axle block is arranged at the center of the multi-castor ; the middle of each angle arm of the multi-castor frame is provided with an axle sleeve ; a pulley spindle hole is arranged on the anterior part of the angle arm, and the pulley spindle hole is connected with a pulley wheel through bolts. The utility model is simple in structure, handy and flexible, convenient in installation and low in cost, and is used for a pair of main wheels, or for replacing a pair of main wheels of carts of all types, realizing flat pulling and stair climbing; the utility model is a product worthy of generalizing.

Description

A kind of can the wheel by the polygonal of cat ladder

Technical field:

The utility model relates to a kind of novel wheel, relates more specifically to a kind of main wheel that can be used for or change all kinds of hand barrows, and can take turns by the polygonal of stair activity.

Background technology:

The wheel that is used for all kinds of baggage cars, waggon, carriage for children, wheel Wheel-chair now all is circular, not only on rugged road surface, jolt easily, children, old man are brought dangerous, and can't stair activity, especially to causing very big inconvenience on the paralysed old man of disease downstairs.

Summary of the invention:

The utility model provides a kind of can the polygonal of cat ladder takes turns, and existing circular wheel is changed into star is polygonal takes turns, and carries out but both make it the level land, can push to stair again, has overcome above-mentioned weak point.

The technical solution of the utility model is: a kind of can the wheel by the polygonal of cat ladder, it is characterized in that: the polygonal polygonal wheel carrier that is provided with two symmetries of taking turns, an axle block is put at its center, and the centre of each angle arm of polygonal wheel carrier is lined with axle sleeve, the front end of angle arm is provided with the pulley axis hole, by the bolted connection pulley.

The utility model is simple in structure, lightly flexible, easy for installation, with low cost, as long as be used for or change one pair of main wheel of all kinds of hand barrows, can reach the purpose of horizontal sliding and cat ladder, is a kind of product that is worthy to be popularized.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a schematic side view of the present utility model.

Fig. 3 is the utility model embodiment scheme drawing.

Wherein: 1 polygonal 4 jiaos of arms of 2 polygonal wheel carrier 3 axle blocks, 5 axle sleeves, 6 pulley axis holes, 7 bolts, 8 pulleys, 9 axletrees, 10 point of connection, 11 baggage cars of taking turns

The specific embodiment:

As shown in Figure 1: the polygonal 1 polygonal wheel carrier 2 that is provided with two symmetries of taking turns of the present utility model, an axle block 3 is put at its center, and the centre of each angle arm 4 of polygonal wheel carrier 2 is lined with axle sleeve 5, and the front end of angle arm 4 is provided with pulley axis hole 6, connects pulleys 8 by bolt 7.

As Fig. 1, shown in Figure 2: as of the present utility modelly polygonally to take turns 1 and can be made as four-octagonal wheel, wherein preferred plan is five horn rings, if be made as turret wheel, the heptangle wheel, octagonal wheel, its angle arm 4 needs corresponding lengthening, polygonal take turns 1 directly through strengthening, cost can increase, if be made as four horn rings, in order to be fit to the height of stairway step, must strengthen polygonal 1 the straight warp of taking turns, if be made as below four horn rings, polygonally take turns 1 because of directly through reducing, cause stair to stride to get on, even if strengthen polygonal 1 the diameter of taking turns, up-down vibration in the time of also can only causing horizontal sliding, performance can't reach requirement, can not place in operation, but direct connection axletree 9 in the axle block 3 of this product, or by bearing connection axletree 9, when hand barrow in when repacking, earlier with one pair of polygonal 1 two ends that are connected axletree 9 of taking turns, change together then on one pair of main wheel of hand barrow and get final product, install, it is very simple and convenient to change, should be not more than 100 millimeters between the point of connection 10 of two angle arms 4 of this product and the center of axle block 3, guarantee polygonal each the joint step that to step up stair continuously smoothly of taking turns like this, should be not less than 15 millimeters between the outer rim of the outer rim of pulley 8 and angle arm 4 front ends, same its smooth cat ladder of assurance, and in horizontal sliding and cat ladder, reduce resistance, lighten the load, reduce thrust.

All parts of the utility model are basically based on metallic material, and pulley 8 can be used non-metallic material, wherein are best with rubber.

As shown in Figure 3: the utility model is an example with baggage car 11, as long as the original axletree 9 of baggage car 11 is pulled down together with one pair of circular wheel at two ends, to be installed in again that a pair of axletree 9 is polygonal takes turns 1 and change and get final product, when having the vehicle of four wheels as waggon, carriage for children, wheel Wheel-chair etc., as long as change one pair of main wheel of this vehicle, and adjust its height, can reach the purpose of horizontal sliding and cat ladder.

The utility model on all kinds of hand barrows through repeatedly repeatedly the experiment, prove that fully polygonal the wheel can both roll freely aspect level land and the cat ladder two, on the level land, reduced ground contact area than circular wheel, make friction minimum, thrust alleviates, aspect cat ladder be general circular wheel can't realize that this product has polygonal the wheel and pulley two-wheel rolling function, it is very light, laborsaving, convenient to make it stair activity.

Claims

1, a kind of can the wheel by the polygonal of cat ladder is characterized in that: the polygonal polygonal wheel carrier that is provided with two symmetries of taking turns, and an axle block is put at its center, and the stage casing of each angle arm of polygonal wheel carrier is lined with axle sleeve, and the front end of angle arm is provided with the pulley axis hole, by the bolted connection pulley.

2, a kind of can the wheel by the polygonal of cat ladder according to claim 1, it is characterized in that: the polygonal wheel can be made as four-octagonal wheel.

3, a kind of can the wheel by the polygonal of cat ladder according to claim 1 is characterized in that: but direct connection axletree in the axle block, or by bearing connection axletree.

4, a kind of can the wheel by the polygonal of cat ladder according to claim 1 is characterized in that: should be not more than 100 millimeters between the point of connection of two angle arms and the center of axle block.

5, a kind of can the wheel by the polygonal of cat ladder according to claim 1 is characterized in that: should be not less than 15 millimeters between the outer rim of the outer rim of pulley and angle arm front end.