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Retractable Crutches

Crutches are an important medical rehabilitation aids, such as breaking stick, elbow stick and armpit stick. The crutches are mainly used for light needs, such as the elderly or mountain climbers.

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Description

Crutches are an important medical rehabilitation aids, such as breaking stick, elbow stick and armpit stick. The crutches are mainly used for light needs, such as the elderly or mountain climbers. The crutches are not for the disabled, while the elbow sticks are for the disabled with moderate lower limbs. The armpit crutch is a necessity for people with severe disability of lower limbs (sick, disabled, etc.). The traditional crutch has a handle at the top, which acts as the "third leg" when walking, and stabilizes the body. There are also three-legged or four-footed ones to enhance the anti-skid effect, and some are also combined with a folding stool. Generally used by the elderly and the disabled.

Definition Of Retractable Crutches

The retractable crutch includes a handle and a main rod body, which is installed at the upper end of the main rod body. The main rod body includes an upper tube body and a lower tube body which are inserted and matched. The lower end of the upper tube body is provided with a locking structure, which forms a radial extrusion effect with the lower rod body; The upper pipe body is provided with a telescopic elastic part, which extends along the axis of the upper pipe body, and the telescopic elastic part cooperates with the elastic jacking of the lower pipe body; The upper part of the upper pipe body is also provided with a rope winding structure and a rope locking structure. The flexible rope is connected between the rope winding structure and the lower pipe body. The flexible rope is flexibly threaded in the rope locking structure. The rope locking structure is adjustable and installed on the upper end of the main rod bod.

Product Description

1.Reasonable handle design is conducive to people's better grip;

2.It adopts telescopic adjustment, which is suitable for various heights;

3.It adopts high-quality aluminum alloy tube, which is light and easy to carry

4.The telescopic part can adjust the height of crutches, so that users can find the most comfortable height, which is suitable for users of different heights;

5.The four corners of the crutch are equipped with anti-skid rubber foot pads, which provide good ground friction ability, and the built-in metal gasket enhances the durability of the crutch

Chemical Composition of Aluminium Alloy:

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Others	Al(Min)
6063	0.2-0.6	0.35	0.1	0.1	0.45-0.9	0.1	0.1	0.1	0.15	rest
6005	0.6-0.9	0.35	0.1	0.1	0.4-0.6	0.1	0.1	0.1	0.15	rest

Mechanical Properties of Aluminium Alloy:

Alloy	Temper	Thickness	T.S./σb (MPa)	Y.S/σ0.2 (MPa)	ELOG./δ%	Hardness/HW
6063	T5	≥ 0.8	≥160	≥110	≥8	≥8
6063	T6	≥ 0.8	≥205	≥180	≥8	≥10
6005	T5	≥ 0.8	≥260	≥240	≥6	≥12
6005	T6	≥ 0.8	≥270	≥250	≥6	≥14

Be noticed on production of finished-machining aluminum profile

1. First of all, we should do great jobs in cleaning, including mold, punch table, assembly line and packaging materials. Aluminium CNC turning parts must be free of sharp debris, dirt, do regular cleaning and rectification, molds up and down must be cleaned without debris.

2. finished-machining aluminum profile are easy to be both hot and hard, so when punching and drilling of aluminium profiles, it is necessary to apply pressure oil to the material before stamping.

3. For extruded aluminium cnc machining with punching holes, it is necessary to clean the surface of the mold, so that the die and aluminum parts can be kept clean and without impurities, so the top damage can be reduced. If the top damage is found when production, the problem points must be found and solved, then the production can continue.

4. Aluminum chips will be produced in the pushing block of the flattening die, so the aluminum chips under the pushing block must be maintained in daily production.

The advantages and disadvantages of finished machining aluminium profiles are as follows

Advantages: ① greatly reduce the number of dies, complex dies are not easy to machine complex parts. If we want to change the shape and size of the parts, we only need to modify the processing program of the extruded aluminum CNC maching datas, which is suitable for the development and modification of new products.

② The machining quality is stable, the aluminium CNC machining accuracy is quitely high which can meet the machining requirements of aircraft.

③ In the case of multi variety and small batch production, the production efficiency is high of CNC machining, which can reduce the time of production preparation, machine adjustment and process inspection, and reduce the aluminium cutting time.

④ It can machine complex surface which is difficult to be processed by conventional methods, and even machine some parts which cannot be observed from outside.

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