CN2212985Y - Connecting member for wheelchair - Google Patents

Abstract

The utility model relates to a connecting member for a wheelchair, whose shape is similar to a tetrahedron. A transverse direction of the connecting member for a wheelchair is provided with an opening which can be used for a tube member of the wheelchair to penetrate. The upper and the lower end of the connecting member for a wheelchair form a cylinder shape. Each end surfaces of the cylinder is provided with a circular furrow which can be used for the tube member of the wheelchair to insert and clamp.

Description

Connecting member for wheelchair

This utility model relates to a kind of coupling compoonent of wheelchair, and it is relevant with the wheelchair that the people of dysbasia uses, and especially the wheelchair of making about the aluminum shelf structure is improved the positioning pipe of its assembling pedal and the bonding part of other pipe component.

The wheelchair of making by the aluminum shelf structure, generally speaking, when being installed in the pedal clobber of wheelchair front end, the easy flexural deformation of the positioning pipe of pedal.Therefore for being separated with other pipe component, diastrophic positioning pipe takes off replacing, so this pipe component uses the associativity member.

But when the wheelchair that is to use traditional coupling compoonent is changed in positioning pipe flexural deformation, each double adapter plate combination must be adjusted the aligning combination, and must live pipe end section with hand and make its prudent immovably operation, connect very long problem of difficulty, replacing time of operation so produce.

And then the joint of junction pipe member is combined by the adapter plate that is divided into two, produces the space because of vibrating and impact to slide when joining part uses, and rainwater is infiltrated by the space joint and pipe component are got rusty, and the wheelchair material problem of deterioration ahead of time occurs.

Just because of this, the purpose of this utility model is to provide a kind of coupling compoonent of wheelchair, it is because of the pedal positioning pipe of the flexible distortion of impact and the joint of other pipe components when using, can easily this positioning pipe be taken off replacing, can not infiltrate the wheelchair coupling compoonent that makes that material worsens when using simultaneously because of rainwater.

At this, the coupling compoonent of wheelchair provided by the utility model, this square coupling compoonent becomes cylindric up and down, and this cylindrical portions may forms the ring-type cunette that can supply the intercalation of handrail support pipe to use, and the coupling compoonent center is provided with the perforation perforate that can supply the positioning pipe break-through.

With the circular hole of an end break-through coupling compoonent of pedal positioning pipe, the vertical component front end with the handrail support pipe is intercalated in the ring-type cunette simultaneously, to connect vertical component and right angle, the location bending part that engages the handrail support pipe.

Below will be from description of drawings embodiment of the present utility model.

Fig. 1 is for using the axonometric chart of wheelchair of the present utility model.

This uses the side view of wheelchair of the present utility model Fig. 2.

Fig. 3 is the axonometric chart of wheelchair skeleton construction.

Fig. 4 engages the axonometric chart of major part for this utility model coupling compoonent.

Fig. 5 is the axonometric chart of this utility model coupling compoonent.

Fig. 6 is the cutaway view of this utility model coupling compoonent bonding part.

Fig. 7 is the axonometric chart of wheelchair chair back positioning pipe.

Fig. 8 is the axonometric chart of traditional push chairs skeleton.

Fig. 1 is an axonometric chart of using wheelchair of the present utility model, and Fig. 2 is the axonometric chart of wheelchair skeleton construction.Wheelchair integral body is with symbol 1 expression.Wheelchair 1 reaches the seat chair cushion locating rack 3 that interconnects with this side frames 2R, 2L with left and right bogie side frame 2R, 2L and constitutes.

Consult Fig. 3, the bearing 6 of trailing wheel 5 connects on the rear portion of the horizontal base station pipe 4 of left and right bogie side frame 2R, 2L and chair back positioning pipe 7 lower ends, upper part at chair back positioning pipe 7 connects with the whose forwardmost end portions that is the crooked handrail support pipe 8 of ┐ shape right-angle type, and then in the middle of the vertical component of chair back positioning pipe 7 and handrail support pipe 8, transverse tube 9 is loaded onto, make it keep horizontal connection two ends.And the positioning pipe 11 for pedal 10 installing usefulness is housed on the front end of left and right bogie side frame 2R, 2L, positioning pipe 11 all stretches in the sleeve pipe 91 with the both ends that transverse tube 9 connects, locked knot with screw, it below the sleeve pipe 91 seat board 35 that bears the positioning pipe 17 of seat cushion locating rack 3, at positioning pipe 11 Lower Half rears arm 38 is extended to tipping tube 39, arm 38 is linked on the shaft 391 that is fixed in tipping tube 39 front ends protrusion (as shown in Figure 2), and can freely load and unload, foot pipe 13 is fixedly arranged on the outside, handrail support pipe 8 belows, for front-wheel 12 is installed.

As shown in Figure 3, at two pairs of parallel isometric link rods 14 of the front and back of seat cushion locating rack 3 device, positioning pipe 17 welding of its lower end and junction pipe 15 and upper end and seat cushion 16, make it more firmly form left and right component-bar linkage 18R, 18L, make the link rod 14 of this component-bar linkage 18R, 18L be crossed as the crossbows state, between its two cross point, tie with bolt equijoin axle 19 pivots.

About middle body that the junction pipe 15 of on one side component-bar linkage 18R is enclosed within the base station pipe 4 of left side frame 2R can rotate its maintenance at any time again, simultaneously, the base station pipe 4 that the junction pipe 15 of the component-bar linkage 18L of another side is enclosed within left frame 2L also is that about middle body can rotate its maintenance at any time, and then, the chair back positioning pipe 7 and the link rod 14 that connect left and right bogie side frame 2R, 2L are tied with connection sheet 20 pivots, side frames 2R, 2L are assembled into the wheelchair that can freely fold.

Cooperation is with reference to Fig. 1 and 2, and the wheel shaft of trailing wheel 5 is passed bearing 6 location, and the front end below positioning pipe 11 is provided with a positioning rod 21, and pedal 10 is placed on the locating rod 21; And front-wheel 12 is the opening part location of outstanding in the top extension bar being inserted foot pipe 13 by the below; The two ends of seat cushion 16 are seamed into the tubular circle live left and right positioning pipe 17.And then the two ends of lower back pad 22 are seamed into the tubular circle live left and right chair back positioning pipe 7; And seat back pad 23 two ends in top also are seamed into the tubular circle and live handlebar stem 24, handlebar stem 24 lower ends are inserted the open upper end of locating rod 7 again, and 24 of handlebar stems are fixing with trip bolt 25, and can load and unload at any time; Refill articulation 26, it can be folded back; On handrail support pipe 8, load onto handrail 27.

By Fig. 3 and Fig. 4 as can be known, this utility model engages the vertical component of handrail support pipe 8 and the right angle bending part of positioning pipe 11 with coupling compoonent 28, coupling compoonent 28 as shown in Figure 5, be provided with the circular hole 29 that supplies positioning pipe 11 break-through in its side, cylindrical portions may 30 is arranged thereon, this cylindrical portions may 30 is provided with the ring-type cunette 31 for the tube end intercalation of handrail support pipe 8, as shown in Figure 6, use above-mentioned coupling compoonent 28, engage the vertical component and the positioning pipe 11 of handrail support pipe 8, positioning pipe 11 passes the circular hole 29 of coupling compoonent 28, ring-type cunette 31 is inserted in the end of handrail support pipe 8, and, coupling compoonent 28 can be fixed with the vertical component welding of handrail support pipe 8 or with adhesive bond according to situation.

As seen, because of using coupling compoonent 28 positioning pipe 11 can be taken off simply or loads onto.

So in use, when pedal 10 collision obstacles cause positioning pipe 11 flexural deformations, positioning pipe 11 is extracted from circular hole 29, simultaneously arm 38 is extracted and this positioning pipe 11 can be taken off from tipping tube 39 and its joining part, then new positioning pipe 11 to install with above-mentioned opposite flow process, can easily positioning pipe 11 be changed.

As shown in Figure 7, insert joint 32 at the upper end of positioning pipe base station pipe, be provided with the tubular configured joint 33 and 34 of the fore-end of chimeric handrail support pipe 8 and transverse tube 9 in the side of the about central part of the first half, it below tubular configured joint 34 seat board 35 that bears the positioning pipe 17 of seat cushion locating rack 3, with the aperture 37 of the 36 embedding ring-type joints 33 of the retractile projection on handrail support pipe 8 and the transverse tube 9 and 34, and to connect above-mentioned handrail support pipe 8 and transverse tube 9 and chair back positioning pipe 7.

As above statement, handrail support pipe vertical component in the pipe component of wheelchair skeleton and positioning pipe right angle bending part engage with square coupling compoonent, the circular hole of using for the transverse tube break-through is arranged in its side, when being used for wheelchair and using the pedal clobber to make positioning pipe flexural deformation, has no relation ground with handrail support pipe vertical component, positioning pipe need only be extracted by circular hole, be changed new positioning pipe and be inserted into and get final product, diastrophic positioning pipe renews the operation of positioning pipe to be operated very easily.

Moreover coupling compoonent is square solid memder, allows rainwater infiltrate and causes this coupling compoonent and the pipe component material worsens so the vibration when using can't make coupling compoonent produce the space, can anti-life-time service.

Claims (1)

1. A kind of coupling compoonent of wheelchair, it slightly becomes tetragonal body, it is characterized in that: coupling compoonent laterally be provided with the perforation perforate that can run through for the pipe component of wheelchair, the upper and lower side of coupling compoonent forms cylindric, respectively being provided with one on the end face of this cylindrical portions may can be for the annular groove of the pipe component intercalation of wheelchair.

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