Rear wheel tread adjustable tricycle for riding instead of walk
A technology for tricycles and wheel bases, applied to axles, wheels, bicycles, etc., can solve the problems of non-adjustable wheel base width, inconvenient use, impassability, etc., and achieve the effects of low processing and production costs, simple structure, and reasonable design
Inactive Publication Date: 2017-03-29
张学田
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Problems solved by technology
[0002] In the tricycles currently on the market, the wheels on the rear axle are all fixed on the same rear axle, and the width of the wheel base cannot be adjusted. It is often impossible to pass because of the narrow aisle, which is very inconvenient to use.
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[0016] Figure 1-5 The rear end of the tricycle frame 3 shown in is provided with a rear axle sleeve 2, the left half shaft 1 and the right half shaft 4 are housed in the rear axle sleeve, and the left fixed pin connected with the left half shaft is arranged on the upper left side of the rear axle sleeve Hole 6, the upper right side of the rear axle sleeve is provided with the right fixed pin hole 7 connected with the right half shaft, the left end of the left half shaft is provided with the left wheel fixing stud 9, and the upper right end of the left half shaft is provided with a row of adjustment left track The left anti-slip lower rack 10, the upper left end of the right half shaft is provided with a row of right anti-slip lower racks 11 for adjusting the right wheelbase, the right end of the right half shaft is provided with a right wheel mounting and fixing stud 12, and the left and right rear axle sleeves are fixed pin holes. Be respectively provided with the fixing pin...
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The invention discloses a rear wheel tread adjustable tricycle for riding instead of walk. A rear axle housing is arranged at the rear end of a frame, a left half axle and a right half axle are mounted in the rear axle housing, a left fixed pin hole connected to the left half axle is formed in the upper left side of the rear axle housing, a right fixed pin hole connected to the right half axle is formed in the upper right side of the rear axle housing, a left wheel fixing bolt is arranged at the left end of the left half axle, a row of left skid-resistant lower racks for adjusting the left tread is arranged at the upper right end of the left half axle, a row of right skid-resistant lower racks for adjusting the right tread is arranged at the upper left end of the right half axle, a right wheel mounting and fixing bolt is arranged at the right end of the right half axle, and wheels are separately mounted at the outer ends of the left and right half axles. When the tread is narrowed, a fixing clamp is removed by lifting a spanner, the fixed pins are extracted from the left and right axle housing pin holes, and then the half axles are mounted inward, the fixed pin is inserted into an outer pin hole of the rear axle housing after correction, and the fixing clamp is fastened.
Description
technical field [0001] The invention relates to a manpower tricycle, specifically a tricycle with adjustable rear wheel track. Background technique [0002] In the tricycles sold in the market, the wheels on its rear axle are all installed and fixed on the same rear axle, and the width of the wheelbase cannot be adjusted, and it is often impossible to pass because of the narrow aisle, which is very inconvenient in use. Contents of the invention [0003] Therefore, there is a great demand for the tricycle with adjustable wheelbase width, and no relevant report about the present invention has been found so far. Tricycle, thus completed the present invention. [0004] The scheme of the present invention includes a tricycle frame, a rear axle sleeve, a left half shaft and a right half shaft. The upper left side of the sleeve is provided with a left fixing pin hole connected with the left half shaft, the upper right side of the rear bushing is provided with a right fixing pin...
Claims
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IPC IPC(8): B60B35/10B62K5/02
CPCB60B35/1018B62K5/02
Inventor 张学田
Owner 张学田