| 摘要 |
A treadle training machine with an oil pressure unit comprises a body: two treadles installed on the body; an oil pressure unit installed between the body and the two treadles for generating resistance force to the treadles. The oil pressure unit includes an oil pressure rod having a head at one end thereof and a closing rod portion at another end thereof; an outer sleeve located between the head and the closing rod portion and formed by molding injection; the outer sleeve being non-transparent; a plurality of slots being formed on the outer sleeve; the outer sleeve enclosing the oil pressure rod. The outer sleeve having the slots provides a beautiful outlook and has a function of heat dissipation. The outer sleeve is colored.
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