CN2271995Y - Damping device of cycle - Google Patents

Abstract

The utility model relates to a damping device of a bicycle, which is provided with a bicycle frame extending member movably connected with a back damping device, a back wheel locating member movably connected with the end of a center shaft, and a front damping device arranged on a front wheel fork. Therefore, the bicycle wheels and the bicycle body are not provided with rigid connecting components, the rider feels comfortable on the irregular road, each component of the bicycle body can not be damaged, and the appearance of the utility model is beautiful.

Description

The bicycle shock absorption device

The utility model relates to a kind of bicycle shock absorption device, the shock absorption device on the bicycle that is particularly useful for being made up of vehicle frame and bumper.

In the existing known technology, bicycle is mainly realized damping by airtyred elastic deformation, and damping effect depends primarily on tire qi of chong channel ascending adversely amount, and too small as tire qi of chong channel ascending adversely amount, damping effect is better, but tire is increased by the ground-surface resistance, requires great effort very much in the time of by bike; Excessive as tire qi of chong channel ascending adversely amount, though laborsaving by bike the time, the vibrations degree of car body is bigger, and damping effect is bad.If vehicle tyre air pressure equals barometric pressure, bicycle can't use.For solving this class problem, Chinese patent CN2206750Y discloses a kind of vehicle damping device.This device includes front shock absorber and rear shock absorber, front shock absorber is assemblied on the front fork, it is made up of clamp structure that the outer tube upper and lower end is set and elastic buffer member, and this bumper is realized damping by front fork tube moving up and down and the elastic buffer effect that is enclosed within the front fork tube outer spring.Back shock absorption device comprises the bottom bracket and the direct-acting shock absorber that flexibly connect with axis, the connection mode of this bumper is that an end is connected with the vehicle frame rear end, the other end is connected with the bottom bracket middle part by sleeve pipe, this connection makes this bumper, support and bottom bracket form a triangular structure, its meaning can be lifted the bottom bracket rear end with the rising of rear wheel, promotes the sleeve pipe bumper and shrinks the realization damping.The weak point of this shock absorption device is: front shock absorber structure more complicated, improved tooling cost; And in the rear shock absorber design, displacement is a momentum because the bottom bracket rear end makes progress, and the triangular structure that above-mentioned bumper, support and bottom bracket form has the relative stability that has, can give turning effort of each coupling end of shock absorption device like this, not only reduced the service life of bumper, and damping effect is undesirable, and profile is not attractive in appearance yet.

Task of the present utility model provides a kind of bicycle shock absorption device, and it flexibly connects the shock absorption device of vehicle frame and structure tube list at suitable position, not only can prolong the service life of each parts of car body, and external form is also very attractive in appearance.

For finishing above-mentioned task, the utility model adopts following solution, comprises a vehicle frame and vehicle frame extended element, and it and rear shock absorber flexibly connect; Also have a trailing wheel align member that flexibly connects with middle axle head, and be installed in the bumper on the front-fork.

The middle part of above-mentioned vehicle frame is one and is similar to trapezoidal pipe fitting that base makes the turning cylinder direct control front-fork action of steering hardware to the two ends straight-line extension on it; The bottom extends upward, and is used for the top saddle is installed.

The middle part of vehicle frame extended element is to be similar to rectangular frame, is used to connect rear shock absorber and stationary links, and its tail end K/UP is used for fixing back seat and rear mudguard.

Above-mentioned front and back bumper can be made into direct-acting shock absorber, and rear shock absorber and vehicle frame extended element and trailing wheel align member tail end are hinged.

One end of trailing wheel align member and the middle axle head of vehicle frame are hinged, and the other end is fixed on the hind axle.

Owing to adopted former and later two bumpers and a trailing wheel align member in the above-mentioned solution.Its front shock absorber is directly installed on the front-fork, and rear shock absorber approaches the vertical direction setting, and is movably connected on the vehicle frame extended element; Trailing wheel align member and middle axle head also adopt movable connection method, make wheel and the vehicle body parts that are not rigidly connected, and the rider has kind of a sense as snug as a bug in a rug when particularly walking rough and uneven in surface road, but each parts of car body are not had any damage, and in addition, its external form is also very attractive in appearance.

Below in conjunction with drawings and Examples the utility model is further described:

Accompanying drawing 1 is the utility model and wheel connecting bridge structural representation

Accompanying drawing 2 is vehicle frame extended element birds-eye vieies among Fig. 1

Accompanying drawing 3 is birds-eye vieies of trailing wheel align member among Fig. 1

As can be seen from Figure 1, the shock absorption device that the utility model proposed comprises three parts, i.e. main body of vehicle frame, trailing wheel align member and front and back bumper.Main body of vehicle frame comprises that is similar to a trapezoidal pipe fitting framework 1, its last base 101 is outside straight-line extension along two ends, the turning cylinder of steering hardware from top to bottom inserts in the pipe on base 101, turning cylinder go out the pipe fitting end be one with the perpendicular cross bar in the plane at wheel place, be used to connect front-fork.The end of the bottom 102 of framework 1 extends upward, and is used to install saddle 7.An acclivitous vehicle frame extended element 2 of along continuous straight runs is set on the bottom 102, and it is used to connect back retarder, back seat, rear mudguard and stationary links.The small end hole 201 of vehicle frame extended element 2 is solid by on bottom 102, and its middle part is a rectangular frame, and as shown in Figure 2, there are two holes (202,203) on the every limit of rectangular frame, is respectively applied for to connect rear shock absorber and stationary links 3.Stationary links 3 other ends are captiveed joint with saddle bottom pipe fitting, in order to reinforce the stability of vehicle frame extended element 2.The tail end K/UP of vehicle frame extended element 2, and connecting bore is arranged, be used to install back vehicle seat and mudwing.

Second portion is a trailing wheel align member 4, it and bottom bracket shape of the prior art are similar substantially, just different with framework 1 linkage section, this is an open end 401, as shown in Figure 3, the middle axle head 402 of this open end and bicycle driving mechanism flexibly connects by a bearing pin, because main body of vehicle frame is when being given a shock, connect the bearing pin rotating torque around this for 4 one of trailing wheel align members, if captive joint can make connecting portion sustain damage, also unfavorable car body damping simultaneously, this kind flexible connection can overcome this defective, makes damping effect reach optimal degree.

Third part is the front and back bumpers, wherein front shock absorber 5 is directly installed on the front-fork of bicycle, and preferably going up of front shock absorber 5 directly inserted the pipe top on the front fork tube, perhaps makes negative thread, be screwed on the front-fork, help changing front shock absorber 5 like this.The bottom and the front wheel spindle of front shock absorber join.Rear shock absorber 6 one ends flexibly connect on the hole 202 of vehicle frame extended element 2, and the other end is movably connected on the trailing wheel align member 4, and rear shock absorber 6 approaches the vertical direction setting, helps damping like this.

Claims (6)

1, a kind of bicycle shock absorption device of forming by vehicle frame and front and back bumper, it is characterized in that: a vehicle frame extended element, it and rear shock absorber flexibly connect, and also have a trailing wheel align member that flexibly connects with middle axle head, and are installed in the front shock absorber on the front-fork.

2, bicycle shock absorption device according to claim 1 is characterized in that; The middle part of above-mentioned vehicle frame is one and is similar to trapezoidal pipe fitting that base makes the turning cylinder direct control front-fork action of steering hardware to the two ends straight-line extension on it; The bottom extends upward, and is used for the top saddle is installed.

3, according to the bicycle shock absorption device described in the claim 1, its special sheet is; The middle part of above-mentioned vehicle frame extended element is to be similar to rectangular frame, is used to connect rear shock absorber and stationary links, and its tail end K/UP is used for fixing back seat and rear mudguard.

4, put according to the bicycle damping described in the claim 1, it is characterized in that: above-mentioned front and back bumper can be made into direct-acting shock absorber, and the two ends of rear shock absorber are hinged with vehicle frame extended element and trailing wheel align member tail end respectively.

5, according to the bicycle shock absorption device described in the claim 1, it is characterized in that: an end of trailing wheel align member and the middle axle head of vehicle frame are hinged, and the other end is fixed on the hind axle.

6, according to the bicycle shock absorption device described in the claim 1, its special sheet is: be provided with stationary links between car extended element and saddle pillar.