CN2142431Y - Bicycle five-way connecting bowl - Google Patents

Abstract

The utility model relates to a bicycle five-way connecting bowl set. The utility model is mainly characterized in that the opening inner walls at both ends of a five-way tube on the bottom of a bicycle stage respectively form conical surfaces; an inner tube is sheathed in the five-way tube from one end of the five-way tube; both ends of the inner tube respectively form ball slots, and the end external side of the inner tube forms a conical section in order to engage the conical surface of the corresponding end of the five-way tube; the other end of the inner tube is provided with screw thread which is provided with a plug cover by means the screw thread; the inner wall of the plug cover forms a bulge loop which is sheathed with a shim; the shim is tightly pressed between the five-way tube and the inner tube when the plug cover is screwed into the inner tube; the connection is completed. The bicycle five-way connecting bowl set of the utility model adopts the fastening-typed pressing connection, and the volumetric efficiency can be can enhanced.

Description

Bicycle five-way connecting bowl

The utility model relates to a kind of bicycle bottom bracket bowl group, and particularly a kind of assembling simple in structure is bicycle bottom bracket bowl group easily.

Five-way bowl group mainly is to be fixedly set in the bicycle rack below, and uses pivot joint pedal and transmission gear, advances so that control the transmission of whole car body.The structure of existing five-way bowl group as shown in Figure 4, it mainly is the jorum 51 that symmetry is set up at pipe 50 two ends in regular turn separately in, 51 ', steel ball ring 52,52 ', circular nut plug 53,53 ' and packing ring 54,54 ' etc., wherein the circular nut plug 53,53 ' is to be hollow form, its inwall is also attacked respectively and is provided with a left side, right-hand thread, its front end then with packing ring 54,54 ' joins, the rear end interlocking has the surface to be inlaid with the steel ball ring 52 of some steel balls again, 52 ', jorum 51 in addition, 51 ' also is the hollow ring, its internal diameter is suitable can to supply packing ring 54,54 ', circular nut plug 53,53 ' and steel ball ring 52,52 ' is inserted in, and when combining with connecting rod 55 with above-mentioned five-way bowl group structure, be to finish assembling respectively in regular turn with it by each part, it mainly is the packing ring 54 of elder generation with middle pipe 50 1 ends, circular nut plug 53, steel ball ring 52, jorum 51 and middle pipe 50 are inserted on the connecting rod 55, circular nut plug 53 and being fixed on the screw thread 551 of connecting rod 55 1 ends wherein, this connecting rod 55 in addition end then with opposite program with jorum 51 ', steel ball ring 52, circular nut plug 53 and packing ring 54 ' etc., and be fixed at a nut 56 on the screw thread 552 of connecting rod 55 other ends, so that be assembled above-mentioned member, after assembling, get mat connecting rod 55 two ends screw threads 551,552 screw togather on the default threaded five-way pipe of the two ends inwall that is assembled in the bicycle rack bottom, and finish the assembling of this five-way bowl group.

Though the five-way bowl group with said structure has the basic function that five-way bowl group should possess, but still have not most thoughtful part on its structure kenel: at first from the above, the structure of existing five-way bowl group includes and is symmetrically two parts such as packing ring, circular nut plug, steel ball ring and jorum, its number of parts is more, and associated components is all linked with one another, must tight each package program of mirror control in when assembling, error takes place during as program assembling wherein, will directly influence the quality of entire product; The combination of above-mentioned each member again, mainly be that mat forms screw thread 551,552 respectively in connecting rod 55 two ends, with binding washer 54,54 ', circular nut plug 53,53 ', steel ball ring 52,52 ' and jorum 51, part such as 51 ', only as above-mentioned, more because of having five-way bowl group component part now, upward former suspicion is complicated in assembling, and multiple binding with each part and connecting rod is to reach with screw-in version, and its production efficiency more can't effectively promote; Moreover, the combination of five-way pipe on above-mentioned member and the vehicle frame mainly must form screw thread in five-way pipe two ends inwall in advance, and connecting rod 55 two ends in the above-mentioned member of mat wear with it respectively and screw togather, efficient on its combine and assemble is lower, so above-mentioned existing five-way bowl group structure still has necessity of improvement.

Main purpose of the present utility model is: a kind of bicycle bottom bracket bowl group is provided, it is a kind of non-formula and assembling simple in structure five-way bowl group easily that screws togather, mainly be that five-way pipe both ends open inwall in ride bottom forms the conical surface respectively, be inserted in pipe in from the one end, should form the pearl groove respectively in interior pipe two ends, its terminal outside also forms the tapering, so that with the corresponding joint of the five-way pipe respective end end conical surface, the other end of interior pipe is formed with screw thread again, spiral shell is established a gag on it, and the gag inwall forms bulge loop, is arranged with pad on the bulge loop, the suitable five-way pipe that is packed in the time of can in gag is screwed into, managing, between interior pipe, and assembling constitutes a bicycle bottom bracket bowl group simple in structure rapidly.

The utility model provides a kind of bicycle bottom bracket bowl group, it is characterized in that: the five-way pipe two ends inwall of ride bottom is formed with the conical surface, this five-way Guan Ziyi end is inserted in pipe in, pipe two ends inwall forms respectively for the pearl groove that steel ball is set in described, the one end also extends to form a tapering, this tapering outer rim is fitted and the corresponding joint of the terminal conical surface of five-way pipe, wears a connecting rod between described interior pipe, and the connecting rod two ends are formed with cooresponding pearl groove corresponding to interior Guan Shangzhu groove place;

The other end of pipe is formed with outside thread in described, the gag of swivel nut one tool negative thread on it, the gag inboard is formed with a bulge loop, be arranged with ring taper pad on the bulge loop, when in gag is screwed into, managing, made pad push against this end conical surface simultaneously, and above-mentioned each member is assembled on the five-way pipe in the five-way pipe.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is the External view of the utility model bicycle bottom bracket bowl group.

Fig. 2 is the exploded drawings of the utility model bicycle bottom bracket bowl group.

Fig. 3 is the cutaway view of the utility model bicycle bottom bracket bowl group.

Fig. 4 is the exploded drawings of existing bicycle bottom bracket bowl group.

Relevant structure of the present utility model partly, please at first consult Fig. 1, shown in Figure 2, it mainly is to form a conical surface 11 respectively at First Five-Year Plan siphunculus 10 both ends open inwalls, and be inserted in one pipe 20 from an end, should interiorly manage the pearl groove 21 that 20 two ends inwalls form arc respectively, 22, pearl groove 21, be equipped with steel ball 23 on 22, pipe 20 1 ends extend to form a tapering 24 wherein, the conical surface 11(that the suitable correspondence of these tapering 24 outer rims is covered on five-way pipe 10 ends please cooperate consult shown in Figure 3), this end of five-way pipe 10 and interior pipe 2 are connect airtight shape, wear a connecting rod 30 in the pipe 20 again, connecting rod 30 two ends are corresponding to interior pipe 20 inner integument grooves 21,22 places also form the pearl groove 31 of arc, 32, so that pipe 20 inner integument grooves 21 in cooperating, 22 location are encircled the steel ball of establishing 23 therebetween, and 30 liang of ends of connecting rod form tapped bore respectively again, and spiral shell is provided with pad 33 and screw rod 34 on it;

Should be formed with outside thread 25 by interior pipe 20 other ends again, spiral shell is provided with a gag 40 on it, gag 40 is the ring bodies that are hollow, inner wall surface thereof is formed with negative thread 42, so that with interior pipe 20 swivel nuts, also can pass therebetween for connecting rod 30, gag 40 inboards are formed with a bulge loop 41 again, be arranged with a ring taper pad 12 on the bulge loop 41, when managing 20 in gag 40 is screwed into, its bulge loop 41 and pad 12 promptly resist the conical surface 11 of five-way pipe 10 these ends simultaneously, when treating that the two pushes against, gag 40 can't continue to be screwed into, and pipe 20 and connecting rod 30 can firmly be assembled on the five-way pipe in this; Because interior pipe 20 two ends are encircled respectively and established steel ball 23, its coupler link 30 promptly constitutes a bearing type, is guaranteed that the rotation of connecting rod 30 is smooth and easy.

More than state and brightly can obviously find out, pipe 10 during vital parts of the present utility model only comprises, members such as interior pipe 20 and gag 40, the composition of its part is very simple, and its assembling the time is that pipe 20 is inserted in from five-way pipe 10 1 ends in making, through inserting steel ball 23 and connecting rod 30, mat one gag 40 is screwed into from five-way pipe 10 other ends, pad 12 is pushed against in five-way pipe 10 conical surface of inboard wall 11, promptly finish assembling, so on package program, can not influence operating efficiency because of part is various, should only screw togather by interior pipe 20 again with one end and gag 40, when a spiral, promptly simultaneously above-mentioned each member is assembled in five-way pipe 10, also more traditional multiple screw-in version rapid and convenient in its operation, so with above-mentioned five-way bowl group structure provided by the utility model the efficient of the assembling process of manufacturing line will further be improved, thereby significantly be reduced cost of manufacture.

According to bicycle bottom bracket bowl group of the present utility model, its structure mainly is to wear pipe in the five-way pipe of bicycle ride bottom, interior pipe terminal formation tapering and this termination of five-way pipe are closed, its other end forms screw thread, and spiral shell establishes a gag, is provided with pad between gag and five-way pipe, when in gag is screwed into, managing, promptly simultaneously be packed in this end of five-way pipe, and finish assembling rapidly, and use and form an assembling simple in structure bicycle bottom bracket bowl group easily through pad.

Claims (1)

1, a kind of bicycle bottom bracket bowl group, it is characterized in that: the five-way pipe two ends inwall of ride bottom is formed with the conical surface, this five-way Guan Ziyi end is inserted in pipe in, pipe two ends inwall forms respectively for the pearl groove that steel ball is set in described, the one end also extends to form a tapering, this tapering outer rim is fitted and the corresponding joint of the terminal conical surface of five-way pipe, wears a connecting rod between described interior pipe, and the connecting rod two ends are formed with cooresponding pearl groove corresponding to interior Guan Shangzhu groove place;

The pipe other end is formed with outside thread in described, the gag of swivel nut one tool negative thread on it, the gag inboard is formed with a bulge loop, be arranged with ring taper pad on the bulge loop, when in gag is screwed into, managing, pad is pushed against in this end conical surface of five-way pipe, and above-mentioned each member is assembled on the described five-way pipe.