An improved bicycle parking structure is disclosed, including a parking base having a third tubular shaft and a pair of second tubular shafts, a pair of tubular shaft jackets; featuring a first tubular shaft having a tubular space adapted for extensible and collapsible movement of a second tubular s
An improved bicycle parking structure is disclosed, including a parking base having a third tubular shaft and a pair of second tubular shafts, a pair of tubular shaft jackets; featuring a first tubular shaft having a tubular space adapted for extensible and collapsible movement of a second tubular shaft, a tubular shaft jacket disposed underneath a tubular shaft opening of the first tubular shaft, wherein outer diameter of an end of the jacket is slightly larger than outer diameter of first tubular shaft, outer diameter of a connector of another end occurs to match inner diameter of tubular shaft opening. Said connector is coupled to the inner wall of the tubular shaft opening, so the second tubular shaft can be locked into an expanded portion of an end of the second tubular shaft when inserted into tubular shaft opening, to therefore effectively reduce second tubular shaft length for space conservation.
대표청구항▼
1. A bicycle parking structure, comprising: a parking base;two second tubular shafts, wherein each of said second tubular shafts has an expanded portion upwardly extended from said parking base;a U-shaped first tubular shaft having two ends and defining two tubular shaft openings, wherein said expan
1. A bicycle parking structure, comprising: a parking base;two second tubular shafts, wherein each of said second tubular shafts has an expanded portion upwardly extended from said parking base;a U-shaped first tubular shaft having two ends and defining two tubular shaft openings, wherein said expanded portions of said second tubular shafts are slidably inserted into said first tubular shaft at said tubular shaft openings respectively to selectively adjust a distance between said first tubular shaft and said parking base, such that said first tubular shaft is upwardly slid to extend said distance between said first tubular shaft and said parking base, and is downwardly slid to reduce said distance between said first tubular shaft and said parking base; andtwo tubular shaft jackets which are made of plastic, wherein each of said tubular shaft jackets has one end having an outer diameter larger than an outer diameter of said first tubular shaft and an opposed end defining a coupling portion which has an outer diameter matching with an inner diameter of said tubular shaft opening of said first tubular shaft, wherein said coupling portion of each of said tubular shaft jackets is coupled at a space between said second tubular shaft and said first tubular shaft when said expanded portion of second tubular shaft is slidably inserted into said first tubular shaft so as to retain said distance between said first tubular shaft and said parking base. 2. The bicycle parking structure, as recited in claim 1, wherein an outer diameter of said expanded portion of each of said second tubular shafts is larger than the outer diameter of said coupling portion of each of said tubular shaft jackets, such that when said first tubular shaft is upwardly pulled to extend said distance between said first tubular shaft and said parking base, said expanded portions of said second tubular shafts are blocked by said tubular shaft jackets to prevent said first tubular shaft detaching from said second tubular shafts. 3. The bicycle parking structure, as recited in claim 2, further comprising two third tubular shafts, wherein each of said third tubular shafts comprises a first connector securely affixed on said parking base and a second connector, wherein each of said second tubular shafts further has an enfolding portion downwardly extended from said expanded portion and detachably coupled with said third tubular shaft via said first connector so as to detachably couple said second tubular shafts with said third tubular shafts respectively, wherein when said first tubular shaft is downwardly slid to reduce said distance between said first tubular shaft and said parking base, said two ends of said first tubular shaft are blocked by said enfolding portions of said third tubular shafts respectively. 4. The bicycle parking structure, as recited in claim 3, wherein each of said third tubular shafts has a curve portion upwardly extended from said parking base and a tapered end slidably inserted into said enfolding portion of said second tubular shaft. 5. The bicycle parking structure, as recited in claim 4, wherein said parking base comprises first and second frames extended in a parallel arrangement, wherein said third tubular shafts are perpendicularly coupled on said first and second frames, wherein said first connector of each of said third tubular shafts is affixed at said first frame. 6. The bicycle parking structure, as recited in claim 5, wherein said first tubular shaft is inclinedly extended from said parking base. 7. A bicycle parking structure, comprising: a parking base;two second tubular shafts, wherein each of said second tubular shafts has an expanded portion upwardly extended from said parking base;a U-shaped first tubular shaft having two ends and defining two tubular shaft openings, wherein said expanded portions of said second tubular shafts are slidably inserted into said first tubular shaft at said tubular shaft openings respectively to selectively adjust a distance between said first tubular shaft and said parking base, such that said first tubular shaft is upwardly slid to extend said distance between said first tubular shaft and said parking base, and is downwardly slid to reduce said distance between said first tubular shaft and said parking base; andtwo third tubular shafts, wherein each of said third tubular shafts comprises a first connector securely affixed on said parking base and a second connector, wherein each of said second tubular shafts further has an enfolding portion downwardly extended from said expanded portion and detachably coupled with said first connector of said third tubular shaft so as to detachably couple said second tubular shafts with said third tubular shafts respectively, wherein when said first tubular shaft is downwardly slid to reduce said distance between said first tubular shaft and said parking base, said two ends of said first tubular shaft are blocked by said enfolding portions of said third tubular shafts respectively. 8. The bicycle parking structure, as recited in claim 7, wherein each of said third tubular shafts has a curve portion upwardly extended from said parking base and a tapered end slidably inserted into said enfolding portion of said second tubular shaft. 9. The bicycle parking structure, as recited in claim 8, wherein said parking base comprises first and second frames extended in a parallel arrangement, wherein said third tubular shafts are perpendicularly coupled on said first and second frames, wherein said first connector of each of said third tubular shafts is affixed at said first frame.
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Whitnall,Frederick William James; Whitnall,Laura Jane, Article support rack for vehicle.
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