Abstract: A wheel chair includes wheel frames which can be adjusted up and down, moving devices and brake devices are connected to two respective sides of the two wheel frames. Support devices are connected to the wheel frames so as to adjust the depth of the wheel frames to which arm rest devices are connected. A folding device is connected between the wheel frames and an assistant device is connected to the folding device. A positioning device is connected to the assistant device so that the wheel chair can be adjusted in many ways to meet different needs of users. The modularized devices effectively reduce manufacturing cost of the wheel chair.

Abstract: A wheel chair includes wheel frames which can be adjusted up and down, moving devices and brake devices are connected to two respective sides of the two wheel frames. Support devices are connected to the wheel frames so as to adjust the depth of the wheel frames to which arm rest devices are connected. A folding device is connected between the wheel frames and an assistant device is connected to the folding device. A positioning device is connected to the assistant device so that the wheel chair can be adjusted in many ways to meet different needs of users. The modularized devices effectively reduce manufacturing cost of the wheel chair.

Abstract: A wheelchair includes a seat frame having two transverse support rods, a foldable sunk-type seat module mounted on the seat frame and located between the two transverse support rods, a backrest frame having two upright support rods, and a foldable sunk-type backrest module mounted on the backrest frame and located between the two upright support rods. Thus, the backrest module may be mounted on and detached from the upright support rods of the backrest frame easily, rapidly and conveniently, and the seat module may be mounted on and detached from the horizontal support rods of the seat frame easily, rapidly and conveniently.

Abstract: A modularized assembly structure of a wheelchair includes two upper transverse tubes and two lower transverse tubes mounted between a pair of sided front module connecting members and a pair of sided rear module connecting members, thereby forming the main frame of the wheelchair. The front wheel and the rear wheel may be respectively mounted on the upper and lower transverse tubes which may be set at different horizontal positions and different vertical heights, so that the distance between the front wheel and the rear wheel may be adjusted arbitrarily.

Abstract: A modularized wheel chair includes two front side members and two rear side members. Two top tubes and two down tubes are respectively connected between the front and rear side members. Each of the front side members has a plurality of front positioning holes that the front wheels unit is optionally connected to desired front positioning holes between the two front side members. Each of the rear side members has a plurality of rear positioning holes that the rear wheels unit is optionally connected to desired rear positioning holes between the two front side members. The position of the front wheels unit and the rear wheels unit can be installed at desired positions so as to obtain different sizes of the wheel chairs.

Abstract: A wheel chair includes two side assemblies each include a back post with a hand grip, a seat bar connected to a lower end of the back post, an arm rest movably connected to the back post, a hanger bracket connected to a front end of the seat bar, a caster rotatably connected to a front end of the seat bar, and a rear wheel connected to a side of the side assembly. A connection device connects the back post and the arm rest, or the front end of the seat bar and the hanger bracket. The connection device has a C-shaped member fastened on the back post or the front end of the seat bar extends. A sleeve is connected to an outside of the C-shaped member and a first end of a connection tube is movably and rotatably received in the sleeve. A locking bolt extends through a close end of the sleeve and is threadedly connected to the first end of the connection tube. The arm rest or the hanger bracket is fixedly connected to a second end of the connection tube.

Abstract: A wheelchair has two sides each provided with a side support frame, an armrest, and an armrest adjusting device. The side support frame has a front portion provided with a support rack, and a rear portion provided with a positioning bar pivotally connected with a rotation shaft, so that the side support frame may be pivoted about the rotation shaft. The rotation shaft is rotatably mounted in the support shaft of the wheelchair, so that the side support frame and the rotation shaft may be rotated about the support shaft. Thus, the side support frame may be rotated about the support shaft through a fixed angle, so that the side support frame may be rotated and moved to a rear portion of the backrest of the wheelchair, thereby facilitating the user entering and leaving the wheelchair.

Abstract: A full-function modularized assembly structure of a wheelchair includes two upper transverse tubes and two lower transverse tubes mounted between two sided front module connecting members and two sided rear module connecting members, thereby forming the main frame of the wheelchair. The front wheel and the rear wheel may be respectively mounted on the upper transverse tube and the lower transverse tube at different horizontal positions and different vertical heights, so that the distance between the front wheel and the rear wheel may be adjusted arbitrarily.

Abstract: A wheelchair includes a seat frame having two transverse support rods, a foldable sunk-type seat module mounted on the seat frame and located between the two transverse support rods, a backrest frame having two upright support rods, and a foldable sunk-type backrest module mounted on the backrest frame and located between the two upright support rods. Thus, the backrest module may be mounted on and detached from the upright support rods of the backrest frame easily, rapidly and conveniently, and the seat module may be mounted on and detached from the horizontal support rods of the seat frame easily, rapidly and conveniently.

Abstract: A wheel chair includes two side assemblies each include a back post with a hand grip, a seat bar connected to a lower end of the back post, an arm rest movably connected to the back post, a hanger bracket connected to a front end of the seat bar, a caster rotatably connected to a front end of the seat bar, and a rear wheel connected to a side of the side assembly. A connection device connects the back post and the arm rest, or the front end of the seat bar and the hanger bracket. The connection device has a C-shaped member fastened on the back post or the front end of the seat bar extends. A sleeve is connected to an outside of the C-shaped member and a first end of a connection tube is movably and rotatably received in the sleeve. A locking bolt extends through a close end of the sleeve and is threadedly connected to the first end of the connection tube. The arm rest or the hanger bracket is fixedly connected to a second end of the connection tube.

Abstract: A wheel chair assembly includes two identical side assemblies each of which has a front part and a rear part and a top link and a low link are respectively inserted in the horizontal fittings on the front part and the rear part. A pivotable device is pivotally connected between the top links and the low links of the two side assemblies. A hanger bracket and a caster are respectively connected to each of the front part. The rear parts each have a plurality of holes so that the shaft of the rear wheel is inserted in one of the holes.