CN2905628Y

CN2905628Y - Retractable bicycle

Info

Publication number: CN2905628Y
Application number: CN 200620113958
Authority: CN
Inventors: 楼攀登
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-15
Filing date: 2006-05-15
Publication date: 2007-05-30
Anticipated expiration: 2016-05-15

Abstract

This model utility relates to a telescopic type bike, the telescopic type bike including the fore and rear frame as well as telescopic pipes of the frame is engaged with the latches by the slots in the sleeves during the quick disassembly so that the fore frame and the rear frame could not rotate or slide relatively; the slots in the connection sleeves are engaged with the connection keys in the bushing so as to hold the connection between the fore and rear frame; the rear end of the connection beam is connected with top cover of the beam, the base pipe clamps comprises large fastening nuts, small fastening screw, fore sleeve and rear sleeve, wherein the small fastening nut is used to adjust the forces between the seat and the seat support pipe in the gross, the large fastening screw is used to finely adjust the force between the seat and the seat support pipe so as to adjust the connection between the seat and the seat support pipe. This model utility has the following advantages: this device is applicable to various people groups and there is no relative sliding between the seat and the support pipe.

Description

A kind of telescoping bicycle

Technical field

The utility model relates to a kind of bicycle, relates in particular to a kind of telescoping bicycle of adjusting the front and rear wheel wheelspan.

Background technology

At present common bicycle can't meet each cyclist's requirement in the terms of overall dimensions of bicycle, and can only satisfy the different people that require with the big ting model of difference generally as walking-replacing tool; Because people's height; brachium and people's height is the ratiometric difference up and down; each cyclist to bicycle before; the requirement of trailing wheel spacing is different; but; from the mechanics of bicycle and firm angle; before most of bicycles connect; the triangle crossbeam of trailing wheel is fixed; and can not change wheel base freely; this is difficult to satisfy all cyclists' requirement to a certain extent; and, even same individual's bicycle, along with the variation of height etc.; requirement to bicycle also can change; simultaneously, often have slide relative or rotation between the seat of standard bicycle and the support tube, bring danger to the cyclist.

The utility model content

The purpose of this utility model provides a kind of telescoping bicycle that can change the front and rear wheel wheelspan; improved bicycle and connected being connected of Fixture for tube of seat of seat and support tube, with overcome the wheel base that has bicycle now can not change and seat and support tube between often have the defective of slide relative or rotation.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of telescoping bicycle, mainly form by front vehicle frame, back vehicle frame and vehicle frame telescopic tube assembly, wherein front vehicle frame comprises front-wheel, front fork tube, connection crossbeam and head tube, back vehicle frame comprises seat, Fixture for tube of seat, coupling bush, back breeches pipe and trailing wheel, driving device and stretcher, and the vehicle frame telescopic tube assembly comprises connection crossbeam, lining, quick detach; In the coupling bush after the connection crossbeam is inserted in the vehicle frame, inner ring in the lining be connected the crossbeam outside face and match, match with the quick detach inner ring in the outer ring, position by draw-in groove in the lining and the engagement of the latch in the quick detach, can not relatively rotate or slide thereby make between front vehicle frame and the back vehicle frame, rotate and interaction force between control linkage crossbeam and the coupling bush around the handgrip axle by handgrip simultaneously, to reach the purpose of further fixedly front vehicle frame and back vehicle frame, moreover, between the connecting key in the draw-in groove in the coupling bush and the lining be connected with a joggle front vehicle frame more firm with the back vehicle frame between being connected; When needing dismounting front vehicle frame and back vehicle frame, the application force that connects between crossbeam and the coupling bush be can shed, front vehicle frame and back vehicle frame so just can be dismantled and regulate as long as rotate handgrip gently; Connect the crossbeam rear end and be connected with the crossbeam end cap, Fixture for tube of seat comprises and screws nut greatly, for a short time screw nut, front sleeve and back sleeve, it is medium and small to screw nut and is used for application force between coarse adjustment seat and the seat support tube, screw nut greatly and be used to finely tune application force between seat and the seat support tube, transfer being connected between seat and the seat support tube to reach to prevent the two slide relative up and down, simultaneously, because the combined action of front sleeve and back sleeve, according to relevant mechanics principle, seat and seat support tube do not have and relatively rotate, this has also just fixed the relative position of seat and whole vehicle frame, has avoided in traditional single sleeve relatively rotating and slide relative up and down between the seat and stay pipe.

The beneficial effects of the utility model are: not only can satisfy different statures or difference and like human needs by bike, be adjusted to and be fit to the vehicle frame length that the individual drives, and, when parking, this Collapsible bicycle can tune to very short length and deposits being suitable for, so not only can reduce taking up room of bicycle, but also it can be positioned in the general car boot railway carriage or compartment being convenient for carrying, transfer to instrument or the leisure that haves a walk in the outskirts drives as short range.Simultaneously because front vehicle frame and afterwards vehicle frame be that tooth, groove are connected and do not have slide relative and relatively rotate, so whole vehicle frame is more firm, and do not have the slide relative and the relative problem of reversing of forward and backward vehicle frame, can guarantee rider's safety.Simultaneously, for being connected between fastening seat and the support tube, at the above-mentioned Fixture for tube of seat that is connected between the two to regulate the application force between seat and the support tube, preventing up and down slide relative of the two, and, because Fixture for tube of seat is by two sleeve combineds action, according to relevant mechanics principle, seat and support tube do not have and relatively rotate, and this has also just fixed the relative position at seat, have avoided in traditional single sleeve relatively rotating and slide relative up and down between the seat and stay pipe.

Description of drawings

Fig. 1 is the assembling scheme drawing of the described telescoping bicycle of the utility model embodiment;

Fig. 2 is the front view of Fixture for tube of seat 6 among Fig. 1;

Fig. 3 is the lateral plan of Fixture for tube of seat 6 among Fig. 1;

Fig. 4 is the front view of lining 12 among Fig. 1;

Fig. 5 is the lateral plan of lining 12 among Fig. 1;

Fig. 6 is the front view of quick detach 13 among Fig. 1;

Fig. 7 is the lateral plan of quick detach 13 among Fig. 1;

Fig. 8 is the enlarged drawing at I place among Fig. 1;

Fig. 9 is the enlarged drawing at II place among Fig. 1.

Among the figure:

1, front-wheel; 2, front fork tube; 3, connect crossbeam; 4, head tube; 5, seat; 6, Fixture for tube of seat; 7, coupling bush; 8, back breeches pipe; 9, trailing wheel; 10, driving device; 11, stretcher; 12, lining; 13, quick detach; 14, screw nut greatly; 15, screw nut for a short time; 16, front sleeve; 17, back sleeve; 18, draw-in groove; 19, outer ring; 20, inner ring; 21, handgrip axle; 22, handgrip; 23, latch; 24, inner ring; 25, crossbeam end cap; 26, seat support tube; 27, connecting key; 28, draw-in groove

The specific embodiment

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Shown in Fig. 1-9, the described telescoping bicycle of the utility model embodiment comprises front vehicle frame, back vehicle frame and vehicle frame telescopic tube assembly, wherein front vehicle frame comprises front-wheel 1, front fork tube 2, connects crossbeam 3 and head tube 4, back vehicle frame comprises seat 5, Fixture for tube of seat 6, coupling bush 7, back breeches pipe 8 and trailing wheel 9, driving device 10 and stretcher 11, and the vehicle frame telescopic tube assembly comprises connection crossbeam 3, lining 12, quick detach 13; In the coupling bush 7 after connection crossbeam 3 is inserted in the vehicle frame, inner ring 20 in the lining 12 matches with the outside face that is connected crossbeam 3, match with the inner ring 24 of quick detach 13 in outer ring 19, engagement by latch 23 in draw-in groove in the lining 12 18 and the quick detach 13 reaches the location purpose, can not relatively rotate or slide thereby make between front vehicle frame and the back vehicle frame, rotate and interaction force between control linkage crossbeam 3 and the coupling bush 7 around handgrip axle 21 by handgrip 22 simultaneously, to reach the purpose of further fixedly front vehicle frame and back vehicle frame, moreover, between the connecting key 27 in the draw-in groove 28 in the coupling bush 7 and the lining 12 be connected with a joggle front vehicle frame more firm with the back vehicle frame between being connected.When needing dismounting front vehicle frame and back vehicle frame, the application force that connects between crossbeam 3 and the coupling bush 7 be can shed, front vehicle frame and back vehicle frame so just can be dismantled and regulate as long as rotate handgrip 22 gently.Connect crossbeam 3 rear ends and be connected with crossbeam end cap 25, Fixture for tube of seat 6 comprises and screws nut 14 greatly, for a short time screw nut 15, front sleeve 16 and back sleeve 17, wherein, for a short time screw nut 15 and be used for application force between coarse adjustment seat 5 and the seat support tube 26, screw nut 14 greatly and be used to finely tune application force between seat 5 and the seat support tube 26, with reach transfer between seat 5 and the seat support tube 26 be connected just right to prevent slide relative about the two, simultaneously, because the combined action of front sleeve 16 and back sleeve 17, according to relevant mechanics principle, seat 5 does not have with seat support tube 26 and relatively rotates, this has also just fixed the relative position of seat 5 and whole vehicle frame, has avoided in traditional single sleeve relatively rotating and slide relative up and down between the seat and stay pipe.

Claims

1, a kind of telescoping bicycle, comprise front vehicle frame, back vehicle frame and vehicle frame telescopic tube assembly, wherein front vehicle frame comprises front-wheel (1), front fork tube (2), connects crossbeam (3) and head tube (4), back vehicle frame comprises seat (5), Fixture for tube of seat (6), coupling bush (7), back breeches pipe (8) and trailing wheel (9), driving device (10) and stretcher (11), and the vehicle frame telescopic tube assembly comprises connection crossbeam (3), lining (12), quick detach (13); It is characterized in that: connect crossbeam (3) and be inserted in the coupling bush (7), inner ring (20) in the lining (12) be connected crossbeam (3) outside face and match, match with the inner ring (24) of quick detach (13) in outer ring (19), by the engagement of the latch (23) in draw-in groove (18) in the lining (12) and the quick detach (13), thereby front vehicle frame and back can not be relatively rotated or slide between the vehicle frame, rotate and interaction force between control linkage crossbeam (3) and the coupling bush (7) around handgrip axle (21) by handgrip (22) simultaneously; Be connected with a joggle between the connecting key (27) in draw-in groove (28) in the coupling bush (7) and the lining (12) with being connected between firm front vehicle frame and the back vehicle frame; Connect crossbeam (3) rear end and be connected with crossbeam end cap (25), Fixture for tube of seat (6) is by screwing nut (14) greatly, screwing nut (15), front sleeve (16) for a short time and back sleeve (17) constitutes, it is medium and small to screw nut (15) and is used for application force between coarse adjustment seat (5) and the seat support tube (26), screw nut (14) greatly and be used to finely tune application force between seat (5) and the seat support tube (26), transfer being connected between seat (5) and the seat support tube (26) to reach.