CN103183096A

CN103183096A - Retractable bicycle

Info

Publication number: CN103183096A
Application number: CN2012103822831A
Authority: CN
Inventors: 全解生
Original assignee: Individual
Current assignee: Zhejiang Zhenxing Axiang Group Co ltd
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2013-07-03
Anticipated expiration: 2032-10-09
Also published as: CN103183096B

Abstract

A retractable bicycle comprises a bicycle front body, a bicycle rear body and a retractable device, wherein the retractable device is composed of a retractable pipe provided with a guide rail column and a positioning column, an outer sleeve pipe with a guiding crack, a quick release piece and a dual-drum screw cap; a screw thread is arranged in the inner pipe wall of the right end section of the retractable pipe; the guide rail column is arranged in the length direction of the pipe wall on the lower side; the positioning column is positioned at a position at the right end of the guide rail column and close to the left; the width and height of the positioning column are equal to and greater than those of the guide rail column respectively; the inner diameter of the outer sleeve pipe is slightly greater than the outer diameter of the retractable pipe; a screw thread is arranged in the outer pipe wall of the right end section of the retractable pipe; the guiding crack is arranged in the length direction of the pipe wall on the lower side; the width and height of the guiding crack are greater than and equal to those of the guide rail column respectively; the left end of the retractable pipe is fixedly welded on the bicycle front body; the pipe body of the retractable pipe is arranged in the outer sleeve pipe from the right end in a sleeving manner; the middle part of the outer sleeve pipe is fixedly welded on the bicycle rear body; the quick release piece is arranged on the outer pipe wall at the left section of the outer sleeve pipe in a sleeving manner; when the bicycle is at a stretched state, the dual-drum screw cap is arranged on the inner pipe wall of the right end section of a swivel nut of the retractable pipe and on the outer pipe wall of the right end section of the outer sleeve pipe; and when the bicycle is at a shrunk state, the dual-drum screw cap is arranged on the inner wall pipe of the right end section of the swivel nut of the retractable pipe.

Description

Extension bicycle

Technical field

The invention relates to the invention of extension bicycle.

Technical background

For bicycle and man, laterally folded mode is very much effort, stretch modes such as X compound rod, two pipes, groove pipe, square tube are nonstandard with material, make difficulty, vehicle is not beautiful, foldingly also have some setbacks, for example the patent No. is 200249968.7, the both sides tube wall of its telescopic pipe must be made two grooves that are parallel to the tubular axis line, and manufacture difficulty is very big, outward appearance is indecency, the rigidity variation.For Electrical Bicycle, above-mentioned folding mode is more unsuitable.

Summary of the invention: extension bicycle, comprise the car precursor, Che Houti, retractor device, retractor device is by the telescopic pipe that guided way post and registration mast are arranged, the outer tube that guide slit is arranged, Fast detachable unit, bitubular blind nut constitutes, tube wall has screw thread within the right-hand member section of telescopic pipe, the length of downside tube wall is to the guided way post is arranged, there is registration mast at the right-hand member place of taking back of guided way post, the width of registration mast and equal highly respectively and be higher than the guided way post, the internal diameter of outer tube sleeve is slightly larger than the external diameter of telescopic pipe, tube wall has screw thread outside the right-hand member section, the length of downside tube wall is to guide slit is arranged, the width of guide slit and highly respectively greater than with equal the guided way post, the left end of telescopic pipe is welded in the car precursor admittedly, body is inserted in the outer tube from right-hand member, and the stage casing of outer tube is welded in aftercarriage admittedly, and Fast detachable unit is enclosed within tube wall outside the left side section of outer tube, bitubular blind nut is stretched tube wall outside the right-hand member section of tube wall and outer tube within the right-hand member section of attitude swivel nut telescopic pipe, tube wall within the right-hand member section of car contracting attitude swivel nut telescopic pipe at car.

The invention benefit: bicycle of the present invention uses the retractor device that only is made of the telescopic pipe that guided way post and registration mast are arranged, the outer tube that guide slit is arranged, Fast detachable unit, bitubular blind nut just can stretch, free-hand operation bicycle is flexible only to need one to the several seconds, namely improve the stretching structure of X formula, two telescoping tube type, groove telescoping tube type, square telescoping tube type, also overturn traditional laterally folded structure, also can realize the flexible of Electrical Bicycle.

Accompanying drawing is washed bright

Fig. 1 shows the attitude of stretching of rail bar formula extension bicycle, Fig. 2 shows the contracting attitude of rail bar formula extension bicycle, Fig. 3 shows the attitude of stretching of colonnade formula extension bicycle, Fig. 4 shows the contracting attitude of colonnade extension bicycle, Fig. 5 shows that a rail bar formula telescopic pipe left side looks, and Fig. 5, Fig. 6, Fig. 7 show that a rail bar formula telescopic pipe left side is looked, mainly looked, the right side is looked, and Fig. 8, Fig. 9, Figure 10 show that a colonnade formula telescopic pipe left side is looked, mainly looked, the right side is looked, Figure 11, Figure 12 show Fast detachable unit side-looking, main looking, and Figure 13, Figure 14 show that the outer tube survey is looked, main looking; Figure 15, Figure 16, Figure 17 show that the side-looking of bitubular blind nut, master look, analyse and observe.Among Fig. 1 to Fig. 8: car precursor-1, telescopic pipe-2, rail bar-21, colonnade-22, registration mast-23, Fast detachable unit-3, outer tube-4, guide slit-41, bitubular blind nut-5, Che Houti-6.

The specific embodiment

Embodiment is just like Fig. 1, Fig. 2, Fig. 5 to Fig. 7 and Figure 11 are to shown in Figure 17: rail bar formula extension bicycle comprises car precursor 1, body 2 behind the car, retractor device, retractor device is by the telescopic pipe 2 that guiding rail bar 21 and registration mast 23 are arranged, the outer tube 4 that guide slit 41 is arranged, Fast detachable unit 3, bitubular blind nut 5 constitutes, tube wall has screw thread within the right-hand member section of telescopic pipe 2, downside tube wall length to the guided way post be rail bar 21, there is registration mast 23 at the right-hand member place of taking back of rail bar 21, the width of registration mast 23 and equal highly respectively and be higher than rail bar 21, the internal diameter of outer tube sleeve 4 is slightly larger than the external diameter of telescopic pipe 2, tube wall has screw thread outside the right-hand member section of outer tube sleeve 4, the length of downside tube wall is to guide slit 41 is arranged, the width of guide slit 41 and highly respectively greater than with equal rail bar 21, the left end of telescopic pipe 2 is welded in the upright sleeve pipe of car precursor 1 admittedly, the body of telescopic pipe 2 is inserted in the outer tube 4 from right-hand member, the stage casing of outer tube 4 is welded in aftercarriage 6 admittedly, the seat that is aftercarriage 6 wraps the upside tube wall that the standpipe bottom is welded in outer tube 4 stage casings admittedly, two trailing wheel stay tubes are welded in the left and right sides tube wall in outer tube 4 stage casings respectively admittedly, the sprocket wheel stay tube is welded in the downside tube wall in outer tube 4 stage casings admittedly, Fast detachable unit 3 is enclosed within tube wall outside the left side section of outer tube 4, tube wall screw thread outside the right-hand member section of tube wall screw thread and outer tube sleeve 4 within the right-hand member section of bitubular blind nut 5 swivel nut telescopic pipe 2 when bicycle is in extended configuration, tube wall screw thread within the right-hand member section of swivel nut telescopic pipe 2 when bicycle is in contraction state; The guided way post is continuous rail bar 21, and rail bar 21 is consubstantialities with telescopic pipe 2, and telescopic pipe 2 and the rail bar 21 preferably light alloy of aluminium or magnesium draw, and corresponding car body pipe, Fast detachable unit 3, bitubular blind nut 5 preferably also are that the light alloy of aluminium or magnesium is made; Registration mast 23 is steel, passes and be fixed in the tube wall of rail bar 21 and telescopic pipe 4 from bottom to top; Fast detachable unit 3 adopts gauge member; Bitubular blind nut 5 is coaxial two cylinders at the end altogether, wherein cylinder is higher than out cylinder, in the outer wall of cylinder have that the tube wall screw thread is harmonious within the right-hand member section of screw thread and this screw thread and telescopic pipe 2, the inwall of out cylinder has the screw thread of the right-hand member section outer tube wall of screw thread and this screw thread and outer tube 4 to be harmonious, and outer wall has convex tendon.Only need the rib of free-hand operation bitubular blind nut, the handle of Fast detachable unit, can make bicycle be in and stretch or shrink.

Embodiment two as Fig. 3, Fig. 4 and Fig. 8 to shown in Figure 17: the downside tube wall length of telescopic pipe 2 to the guided way post be colonnade 22, there is registration mast 23 at the right-hand member place of taking back of colonnade 22, the width of registration mast 23 and equal highly respectively and be higher than colonnade 22, the width of the guide slit 41 of outer tube sleeve 4 and highly respectively greater than with equal colonnade 22; The guided way post is colonnade 22 at interval, and each post of colonnade 22 all is steel, passes and be fixed in the tube wall of telescopic pipe 2 from bottom to top; Telescopic pipe 2 preferably also is steel, and corresponding car body pipe, Fast detachable unit 3, bitubular blind nut 5 preferably also are steels; Other are identical with embodiment's one.

The protection domain of present patent application technology should comprise: above guided way post, registration mast and guide slit are positioned at; Telescopic pipe 2 and rail bar 21 are steels, and corresponding car body pipe, Fast detachable unit 3, bitubular blind nut 5 also are that steel is done; The guided way post that the telescopic pipe 2 that aluminium or magnesium alloy draw is installed with is colonnade 22.

Claims

1. extension bicycle, comprise the car precursor, Che Houti, retractor device, it is characterized in that, retractor device is by the telescopic pipe that guided way post and registration mast are arranged, the outer tube that guide slit is arranged, Fast detachable unit, bitubular blind nut constitutes, tube wall has screw thread within the right-hand member section of telescopic pipe, the length of downside tube wall is to the guided way post is arranged, there is registration mast at the right-hand member place of taking back of guided way post, the width of registration mast and equal highly respectively and be higher than the guided way post, the internal diameter of outer tube sleeve is slightly larger than the external diameter of telescopic pipe, tube wall has screw thread outside the right-hand member section, the length of downside tube wall is to guide slit is arranged, the width of guide slit and highly respectively greater than with equal the guided way post, the left end of telescopic pipe is welded in the car precursor admittedly, body is inserted in the outer tube from right-hand member, the stage casing of outer tube is welded in aftercarriage admittedly, Fast detachable unit is enclosed within tube wall outside the left side section of outer tube, and bitubular blind nut is stretched tube wall outside the right-hand member section of tube wall and outer tube within the right-hand member section of attitude swivel nut telescopic pipe, tube wall within the right-hand member section of car contracting attitude swivel nut telescopic pipe at car.

2. extension bicycle as claimed in claim 1 is characterized in that, the guided way post is continuous rail bar, rail bar and telescopic pipe are consubstantialities, protrude from top to bottom outside the tube wall of telescopic pipe, registration mast is steel, passes and be fixed in the tube wall of rail bar and telescopic pipe from bottom to top.

3. extension bicycle as claimed in claim 1 is characterized in that, guided way post system colonnade at interval, and each post of colonnade and registration mast all are steel, pass and be fixed in the tube wall of telescopic pipe from bottom to top.

4. extension bicycle as claimed in claim 1, it is characterized in that, bitubular blind nut is coaxial two cylinders at the end altogether, middle cylinder is higher than out cylinder, in the outer wall of cylinder have that the tube wall screw thread is harmonious within the right-hand member section of screw thread and this screw thread and telescopic pipe, the inwall of out cylinder has the right-hand member section of screw thread and this screw thread and outer tube 4 to be harmonious from the screw thread of outer tube wall, and outer wall has convex tendon.