CN2799969Y

CN2799969Y - Flywheel coupled shaft of Bicycle

Info

Publication number: CN2799969Y
Application number: CN 200520057989
Authority: CN
Inventors: 陈少涛; 孙明亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-30
Filing date: 2005-04-30
Publication date: 2006-07-26
Anticipated expiration: 2015-04-30

Abstract

The utility model relates to a flywheel connecting axle of a bicycle, which comprises a left floral wheel disc of back axle leather sheathed on a core axle, a right floral wheel disc of back axle leather, an axle pipe and a connecting screw bolt, wherein the axle pipe is arranged between the left floral wheel disc of back axle leather and the right floral wheel disc of back axle leather. The right floral wheel disc of back axle leather comprises a right floral disc of back axle leather, ratchet pawls and a flywheel connecting body, wherein the right floral disc of back axle leather and the flywheel connecting body are connectively sheathed by the ratchet pawls. The inner side of a cylinder body of the right floral disc of back axle leather is provided with ratchets and axle pipe position steps. The ratchets and the ratchet pawls are matched and clamped, and the axle pipe position steps and the axle pipe or an axle pipe base are matched and sheathed. The utility model has the advantages of simple structure, good manufacturability, convenient flywheel change, easy speed increase, speed change and assemblage, and convenient gap adjustment and repair.

Description

Bicycle even flies axle

Technical field: the utility model belongs to the bicycle part field, especially relates to a kind of bicycle and even flies axle.

Background technique: the company of the bicycle of domestic production at present flies axle, is that flywheel separates with backshaft skin mostly.Flywheel is by being threaded onto on the rear axle, but owing to be subjected to the restriction of footpath size at the bottom of the flywheel, can't be processed into the less flywheel of the number of teeth, and the speed of BMX is restricted.The right floral disc flywheel shaft of a kind of bicycle rear axle skin is disclosed as Chinese patent ZL01258443.6, its ratchet is arranged on the flywheel shaft of the right floral disc of backshaft skin, be outside the cylindrical shell of the right floral disc of backshaft skin, freewheel sprockets is set in outside the cylindrical shell of the right floral disc of backshaft skin, so size-constrained system in footpath at the bottom of the flywheel, can't be processed into the less flywheel of the number of teeth, and the company that releases in recent years flies axle, complex structure, difficulty of processing are big mostly, is unfavorable for promoting.

Summary of the invention: the purpose of this utility model is at above-mentioned deficiency, has designed a kind of simple in structure, good manufacturability, can change flywheel easily, reaches speed-raising better, speed change and assembling be easy to bicycle and connect and fly axle.

The purpose of this utility model is achieved in that and comprises backshaft skin left side floral whorl dish, the right floral whorl dish of backshaft skin, central siphon and the connecting bolt that is set on the mandrel, central siphon is arranged between backshaft skin left side floral whorl dish, the right floral whorl dish of backshaft skin, the right floral whorl dish of backshaft skin comprises the right floral disc of backshaft skin, ratchet and connects flywheel body, the right floral disc of backshaft skin, company's flywheel body connect by the ratchet suit, the cylindrical shell inboard of the right floral disc of backshaft skin is provided with ratchet and central siphon position step, ratchet is connected with the ratchet snap-fit, and central siphon position step is connected with central siphon or central siphon seat coupling suit.

The utility model, connecting flywheel body is made up of free wheel base and sprocket wheel, generally speaking, free wheel base and sprocket wheel are processed as an integral body, sprocket wheel also can be processed separately and be set on the free wheel base again, free wheel base is provided with the flywheel rolling ball channel, and the flywheel ball that free wheel base is placed by the flywheel rolling ball channel rolls with the cylindrical shell of the right floral disc of backshaft skin and is connected; Free wheel base is provided with the very heavy groove of location ratchet; Free wheel base is provided with axle shelves rolling ball channel, and the axle shelves ball that free wheel base is placed by axle shelves rolling ball channel rolls with connecting bolt and is connected.

The utility model, free wheel base and sprocket wheel can be processed as two kinds of parts to carry out split and is connected, and generally speaking, sprocket wheel can be 1～6, to adapt to the needs of speed change.

The utility model, have simple in structure, good manufacturability, can change flywheel easily, reach speed-raising better, speed change, assembling be easy to advantage, and adjusting play, maintenance are also very convenient, are applicable to that various bicycles use, and are particularly useful for multi-speed bicycle and use.

Following embodiment is further described the utility model in conjunction with the accompanying drawings.

Description of drawings:

Fig. 1 is the utility model embodiment 1 a structural representation;

Fig. 2 is the utility model embodiment 2 a structural representation;

Fig. 3 is the utility model embodiment 3 a structural representation;

Fig. 4 is the utility model embodiment 4 a structural representation;

Fig. 5, Fig. 6 are respectively the structural representations of Fig. 1 embodiment 1 the right floral disc of backshaft skin; Wherein, Fig. 5 be A-A to sectional structure chart, Fig. 6 is a right elevation;

Fig. 7, Fig. 8 are respectively the structural representations of company's flywheel body of Fig. 1 embodiment 1; Wherein, Fig. 7 be B-B to sectional structure chart, Fig. 8 is a left view;

Fig. 9, Figure 10 are respectively the structural representations of Fig. 2 embodiment 2 free wheel base; Wherein, Fig. 9 be C-C to sectional structure chart, Figure 10 is a left view;

Figure 11, Figure 12 are respectively the structural representations of Fig. 2 embodiment 2 sprocket wheel; Wherein, Figure 11 be D-D to sectional structure chart, Figure 12 is a left view;

Figure 13, Figure 14, Figure 15 are respectively the structural representations of Fig. 3 embodiment 3 free wheel base; Wherein, Figure 13 be E-E to sectional structure chart, Figure 14 is a right elevation, Figure 15 is a left view.

Among the figure, 1, the right floral disc of backshaft skin, 2, ratchet, 3, connect flywheel body, 4, spoke hole, 5, the cylindrical shell of the right floral disc of backshaft skin, 6, axle shelves rolling ball channel, 7, ratchet, 8, central siphon, 9, central siphon seat, 10, central siphon position step, 11, free wheel base, 12, sprocket wheel, 13, the flywheel rolling ball channel, 14, very heavy groove, 15, flywheel ball, 16, mandrel, 17, connecting bolt.

Embodiment:

Embodiment 1: with reference to Fig. 1, Fig. 5, Fig. 6, Fig. 7, Fig. 8, present embodiment comprises the backshaft skin left side floral whorl dish that is set on the mandrel 16, the right floral whorl dish of backshaft skin, central siphon 8 and connecting bolt 17, central siphon 8 is arranged at backshaft skin left side floral whorl dish, between the right floral whorl dish of backshaft skin, the right floral whorl dish of backshaft skin comprises the right floral disc 1 of backshaft skin, ratchet 2 and company's flywheel body 3, the right floral disc 1 of backshaft skin, connecting flywheel body 3 connects by ratchet 2 suits, cylindrical shell 5 inboards of the right floral disc 1 of backshaft skin are provided with ratchet 7 and central siphon position step 10, ratchet 7 is connected with ratchet 2 snap-fit, and central siphon position step 10 is connected with central siphon 8 or central siphon seat 9 coupling suits; Connect flywheel body 3 and consist of parts by free wheel base 11 and sprocket wheel 12, be that free wheel base 11 and sprocket wheel 12 are integral structure, free wheel base 11 is provided with flywheel rolling ball channel 13, and the flywheel ball that free wheel base 11 is placed by flywheel rolling ball channel 13 rolls with the cylindrical shell 5 of the right floral disc 1 of backshaft skin and is connected; Free wheel base 11 is provided with the very heavy groove 14 of location ratchet 2; Free wheel base 11 is provided with axle shelves rolling ball channel 6, and the axle shelves ball that free wheel base 11 is placed by axle shelves rolling ball channel 6 rolls with connecting bolt 17 and is connected.

Embodiment 2: with reference to Fig. 2, Fig. 9, Figure 10, Figure 11, Figure 12, present embodiment is that the free wheel base 11 and the sprocket wheel 12 split type companies of monolithic sprocket wheel fly axle, sprocket wheel 12 conversion according to demand on the free wheel base, the i.e. sprocket wheel of the different numbers of teeth of conversion.

Embodiment 3: with reference to Fig. 3, Figure 13, Figure 14, Figure 15, and free wheel base 11 lengthenings of present embodiment, the split type company that three sprocket wheels 12 are installed flies axle, adapts to the bicycle that needs speed change.Generally can add to 1～6 sprocket wheel according to demand.

Embodiment 4: with reference to Fig. 4, be that the all-in-one-piece company of extra heavy pipe flies axle, without the installation shaft base, central siphon 8 directly is connected on the central siphon position step 10 of the right floral disc 1 of backshaft skin.

Working principle of the present utility model: connect flywheel body 3 and be supported on flywheel rolling ball channel 13 and the axle shelves rolling ball channel 6 by flywheel ball 15, when chain drives sprocket wheel 12 rotations that connect on the flywheel body 3, be fixed on ratchet 2 on the very heavy groove 14 that connects flywheel body 3 withstands on the ratchet 7 in the cylindrical shell 5 of the right floral disc of backshaft skin by Spring Steel Wire, rotate thereby driven the right floral disc 1 of backshaft skin, bicycle is travelled forward; When bicycle during, connect ratchet 7 surfaces in the cylindrical shell 5 that ratchet 2 on the flywheel body 3 slips over the right floral disc of backshaft skin, and right floral disc 1 associated part such as grade of backshaft skin is motionless to front slide.

Total of the present utility model is very simple, and adjusting play, mounting or dismounting maintenance also are easy to.

Claims

1, a kind of bicycle even flies axle, comprise the backshaft skin left side floral whorl dish that is set on the mandrel (16), the right floral whorl dish of backshaft skin, central siphon (8) and connecting bolt (17), described central siphon (8) is arranged at backshaft skin left side floral whorl dish, between the right floral whorl dish of backshaft skin, the right floral whorl dish of described backshaft skin comprises the right floral disc (1) of backshaft skin, ratchet (2) and company's flywheel body (3), the right floral disc (1) of described backshaft skin, connecting flywheel body (3) connects by ratchet (2) suit, it is characterized in that: cylindrical shell (5) inboard of the right floral disc of described backshaft skin (1) is provided with ratchet (7) and central siphon position step (10), described ratchet (7) is connected with described ratchet (2) snap-fit, and described central siphon position step (10) is connected with described central siphon (8) or central siphon seat (9) coupling suit.

2, bicycle according to claim 1 even flies axle, it is characterized in that: the described flywheel body (3) that connects is made up of free wheel base (11) and sprocket wheel (12), described sprocket wheel (12) is set on the described free wheel base (11), described free wheel base (11) is provided with flywheel rolling ball channel (13), and the flywheel ball that described free wheel base (11) is placed by described flywheel rolling ball channel (13) rolls with the cylindrical shell (5) of the right floral disc of described backshaft skin (1) and is connected; Described free wheel base (11) is provided with the very heavy groove (14) of the described ratchet in location (2); Described free wheel base (11) is provided with axle shelves rolling ball channel (6), and the axle shelves ball that described free wheel base (11) is placed by described axle shelves rolling ball channels (6) rolls with described connecting bolt (17) and is connected.

3, bicycle according to claim 2 even flies axle, and it is characterized in that: described free wheel base (11) is connected for split with sprocket wheel (12).