CN2076957U

CN2076957U - Bicycle frame joining device

Info

Publication number: CN2076957U
Application number: CN 90218919
Authority: CN
Inventors: 许资胜
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-09-08
Filing date: 1990-09-08
Publication date: 1991-05-15

Abstract

The utility model relates to a bicycle frame joining device, mainly comprising a bicycle frame joint, the inside of the through tube of the joint is sheathed with a bicycle frame tube, which is mainly characterized in that the inside of the sleeve joint end of the bicycle frame tube is embedded with a pile of drawn tubes, and the utility model makes the bicycle tube expand to fix with the bicycle joint tightly.

Description

Bicycle frame joining device

The utility model relates to a kind of coupling device of cycle frame, particularly about the coupling device of pallet and vehicle frame pipe.

For existing cycle frame, iron pipe vehicle frame, chrome-molybdenum steel vehicle frame, aluminium alloy bicycle frame and carbon fiber bicycle frame or the like are arranged, these vehicle frames are on array mode, nothing more than with methods such as welding or lining cement are bonding.With welding, the welding technique of irony or steel vehicle frame is than no problem, but concerning aluminium alloy bicycle frame, welding technique remains in many problems at present, and cost is very high, if make the welding of aluminium alloy bicycle frame can reach the requirement of safety as far as possible, then its ingredient requirement is very high, and thickness is also thicker, and, after having welded, since high kelvin relation, the material soft or hard inequality of aluminium alloy bicycle frame pipe, must be through bakingout process, but still difficulty reaches evenly material, and especially weld often has fracture, has obviously buried dangerous seed.

For carbon fiber bicycle frame, have the gummed mode only, its weak program does not say and can explain that real is not the assembling mode an of the best.

Therefore, in order to improve the quality of bicycle, stride forward, after the assembled configuration of having analyzed aluminium alloy bicycle frame now or carbon fiber bicycle frame, find that it exists that technology is bad, cost is high and shortcoming such as danger again, suddenly waits to improve towards the vehicle frame of more senior material.

In view of this, main purpose of the present utility model provides a kind of cycle frame coupling device, and its combination is easy and rapid, and with low cost and in conjunction with firm.

A kind of cycle frame coupling device is proposed for achieving the above object, this device is by the inner socket one vehicle frame pipe of the siphunculus of a pallet, the inside that this vehicle frame pipe box is gone into end wears a tube drawing that pushes away with tapering, when the vehicle frame tubular axis when the attaching direction moves, but this pushes away tube drawing warp-wise extruding vehicle frame pipe periphery, makes it to expand with the siphunculus tight joint; Wherein this siphunculus inside also can be the taper of outer narrow inner width.

As above-mentioned unitized construction, what do not have the fugitiveness of welding and gummed waits shortcoming built on the sand, and senior vehicle frames such as the aluminium alloy bicycle frame of bicycle or carbon fiber are engaged, and has reduced cost and more firm safety.

The vehicle frame composite set that the utility model proposes will elaborate in conjunction with following accompanying drawing, wherein:

Fig. 1 is the exploded perspective view of the preferred embodiment of the vehicle frame composite set that the utility model proposes;

Fig. 2 is the assembled sectional view of the preferred embodiment of the vehicle frame coupling device that the utility model proposes;

Fig. 3 is the cutaway view of another preferred embodiment of the vehicle frame coupling device that the utility model proposes;

Fig. 4 is the cutaway view of the another preferred embodiment of the vehicle frame coupling device that the utility model proposes.

Fig. 5 is the cutaway view of a preferred embodiment again of the vehicle frame coupling device that the utility model proposes.

As shown in Figure 1, 2, the vehicle frame coupling device that the utility model proposes includes a pallet 10, this pallet 10 can be various types, which is provided with the siphunculus 11 of right quantity, and this siphunculus 11 can be welding manner combination as shown in Figure 1, 2, socket joint type combination that also can be as shown in Figure 5, and siphunculus 11 inside install in advance one tapering arranged push away tube drawing 20; One vehicle frame pipe 30 is sheathed on siphunculus 11 inside of joint 10, and the inner edge of vehicle frame pipe 30 just in time is installed with this and pushes away tube drawing 20 and wear within it, and owing to vehicle frame pipe 30 more pushes to siphunculus 11 inside, pushing away tube drawing 20 will definitely be owing to its tapering, make vehicle frame pipe 30 expand gradually and form socket very closely with siphunculus 11 inner edges, reach in conjunction with firm firm and solid again effect, and need not select SPECIAL MATERIAL for use, reduced material cost, shortcoming such as unjointed fugitiveness again, various advantages is all greater than existing vehicle frame unitized construction.

Unlikely the coming off in order to guarantee vehicle frame pipe 30 and siphunculus 11 really tight sockets more, in can another kind of embodiment as shown in Figure 3, this siphunculus 11 is provided with a resistance face 111 near the inner edge of outer end, from this resistance face 111 places vertically inwardly in it through expansion gradually, when the periphery of vehicle frame pipe 30 is expanded, can stop that vehicle frame pipe 30 comes off because of the setting of resistance face 111.

The vehicle frame coupling device that the utility model proposes also can reach same effect as shown in Figure 4, these siphunculus 11 inside are the taper 112 of outer narrow inner width, when vehicle frame pipe 30 sleeves are expanded by pushing away tube drawing 20 extruding in siphunculus 11 inside again, the insertion end that can make the vehicle frame pipe has if a conial tube and just can coincideing with siphunculus in-to-in taper 112 forms more certain and firm adeciduate state.

Claims

1, a kind of cycle frame coupling device, this device is by the inner socket one vehicle frame pipe of the siphunculus of a pallet, it is characterized in that, the inside that this vehicle frame pipe box is gone into end wears a tube drawing that pushes away with tapering, when the vehicle frame tubular axis when the attaching direction moves, but this pushes away tube drawing warp-wise extruding vehicle frame pipe periphery, makes it to expand and the siphunculus tight joint.

2, cycle frame coupling device as claimed in claim 1 is characterized in that, wherein this siphunculus inside also can be the taper of outer narrow inner width.