CN2275529Y

CN2275529Y - Improved structure wheelchair main-wheel rim in hand-pushing place

Info

Publication number: CN2275529Y
Application number: CN 96218558
Authority: CN
Inventors: 施金木
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-22
Filing date: 1996-08-22
Publication date: 1998-03-04
Anticipated expiration: 2006-08-22

Abstract

The utility model relates to an improved structure wheelchair main-wheel rim in hand-pushing place. The side edge of the main wheel of the wheelchair is additionally provided with an annular pipe body which is fixed on the main wheel. The inner part of the annular pipe body is hollow, and the annular pipe body is locked on the wheel rim of the main wheel of the wheelchair by a plurality of connecting posts. The inner ring part and the outer ring part of the surface of the annular pipe body are respectively provided with a longitudinal area of waving structure. The upper and lower surfaces of the annular pipe body are respectively provided with a crossing grain structure, and any area of the surface can be provide with the grain structure. The utility model can increase the friction with the vola to achieve the labour-saving effect.

Description

Improve the wheelchair main wheel hand push portion wheel rim of structure

The utility model relates to the wheeled car that a kind of rider drives, particularly a kind of wheelchair main wheel hand push portion wheel rim that improves structure.

See also Fig. 1, be the wheelchair main wheel hand push portion rim structure scheme drawing of commonly using, portion's wheel rim 20 is a ring-type hollow tube, and its body surface is smooth state, its material is many with aluminum alloy and corrosion-resistant steel, with several joint pins 30,, lock on the wheel rim 10 of wheelchair main wheel hand push portion wheel rim 20, if need mobile wheelchair main body, then hold on this wheel rim 10 with palm, and the application of force, then drive connected wheelchair main wheel 10 and move, because body smooth surface, the contact friction force of palm and body is less, so palm must impose bigger grip, can moving body, increase the hand muscular fatigue easily, and when hand has sweat, easily slide, be difficult to drive wheelchair and advance.Fig. 2 is the section-drawing of wheel rim main wheel hand push portion, and body inside is hollow form.

The purpose of this utility model is to provide a kind of wheelchair main wheel hand push portion wheel rim that improves structure, makes the surface design of main wheel hand push portion wheel rim become texture structure, and increases longitudinal wave Slippage road, and the friction between increase and palm reaches the labour-saving effect.

To achieve these goals, the utility model is taked following technical scheme:

A kind of wheelchair main wheel hand push portion wheel rim that improves structure, be at wheelchair main wheel side, set up a ring-type body and be fixed on the main wheel, its this ring-type body, inside is hollow shape, utilize several joint pins to lock on the wheel rim of wheelchair main wheel, improvements of the present utility model are, described loop pipe surface inner ring and outer ring part respectively are provided with the zone of a longitudinal wave Slippage structure, and respectively be provided with the structure of cross cut, and can establish texture structure in arbitrary zone on surface at the upper and lower surface of this loop pipe surface.

It can increase and palm between friction, reach the labour-saving effect.

The utility model preferred embodiment is described with reference to the accompanying drawings as follows:

Fig. 1 is for commonly using wheelchair main wheel hand push portion rim structure scheme drawing.

Fig. 2 is the section-drawing at A-A shown in Figure 1 position.

Fig. 3 is the structural representation of the utility model first embodiment.

Fig. 4 is the section-drawing at B-B shown in Figure 3 position.

Fig. 5 is the body local surfaces enlarged diagram at D shown in Figure 3 position.

Fig. 6 is the structural representation of the utility model second embodiment.

Fig. 7 is the section-drawing at C-C shown in Figure 6 position.

Fig. 8 is the body local surfaces enlarged diagram at E shown in Figure 6 position.

Fig. 9 is for adopting the schematic perspective view of the first embodiment wheelchair.

Figure 10 is that body shown in Figure 9 is at the open circuited schematic perspective view in F position.

Figure 11 is for adopting the schematic perspective view of the second embodiment wheelchair.

Figure 12 is that body shown in Figure 11 is at the open circuited schematic perspective view in G position.

See also Fig. 2～Fig. 5, scheme drawing for the utility model first embodiment, its structural attitude is with a ring-type hollow tube 20, be connected in several joint pins 30 on the wheel rim 10 of wheelchair main wheel, there is a cross-like texture structure 22 on its ring-type hollow tube 20 surfaces, its manufacturing process can adopt founding, precision cast, lathe, wash modes such as bed, the rough surface on body 20 surfaces of manufacturing, can determine the cost-effective mode of production according to production quantity, the section-drawing of Fig. 4 first embodiment wheelchair hand push portion wheel rim, inside is hollow form, and Fig. 5 is the enlarged diagram of the first embodiment body, one section surface.

See also Fig. 6～Fig. 8, it is the utility model second embodiment scheme drawing, it comprises main wheel 10, hand push portion wheel rim 20, joint pin 30, it is in hand push portion wheel rim 20, establish longitudinal wave Slippage 21 structures in the horizontal direction, and vertical direction is provided with texture structure 22, can make according to favourable and the most most economical manufacture, the longitudinal wave Slippage 21 of wheel rim 20 surface level directions and the design of the texture structure 22 of vertical direction, can increase area of contact and increase actv. friction force with palm, reach laborsaving antiskid purpose, and it is very big that the more traditional wheel rim of this design improves amplitude, catches when touching, and distinguishes the difference of main wheel 10 and wheel rim 20 easily, unlikelyly obscure, and false touch main wheel and transmission main shaft, thereby avoid hand to come to harm, Fig. 7 is the section-drawing of second embodiment wheelchair hand push portion wheel rim body surface one segment structure, Fig. 8 is one section enlarged diagram on body surface, can find out the detailed structure on body surface thus.

See also Fig. 9, for the utility model adopts the wheelchair schematic perspective view of first embodiment, figure just can clearly find out the position of hand push portion wheel rim 20 in wheelchair thus, and this figure expresses its texture structure, and Figure 10 amplifies schematic perspective view for the section of circle shape body.

See also Figure 11, it is the wheelchair schematic perspective view of second embodiment, in in hand push portion wheel rim 20 inner rings and outer ring part, one longitudinal wave Slippage structure 21 is arranged, respectively there is the coarse texture structure 22 of intersection twill formula on its two sides, with several joint pins 30, lock on the wheel rim 10 of main wheel, Figure 12 is the three-dimensional enlarged diagram of body section.

Claims

1, a kind of wheelchair main wheel hand push portion wheel rim that improves structure, be at wheelchair main wheel side, set up a ring-type body and be fixed on the main wheel, its this ring-type body, inside is hollow shape, utilizes several joint pins to lock on the wheel rim of wheelchair main wheel, it is characterized in that, described loop pipe surface inner ring and outer ring part respectively are provided with the zone of a longitudinal wave Slippage structure, and respectively are provided with the structure of cross cut at the upper and lower surface of this loop pipe surface, and can establish texture structure in arbitrary zone on surface.