CN201424113Y - Left-right driving interchange structure of bicycle hub - Google Patents

Abstract

A bicycle hub left and right drive interchange structure comprises: the hub is provided with a containing space and is provided with a blocking edge, a concave-convex ring and a clamping groove, the blocking edge is fixed at the blocking edge, a buckling and abutting part is fixed at the clamping groove, the fixing ring is arranged at the concave-convex ring of the hub, the linking ring is arranged inside the fixing ring, the inner wall of the linking ring is provided with a unidirectional inclined tooth surface, a plurality of ratchet tooth grooves are formed in a ratchet tooth seat of the ratchet part, and elastic parts and ratchets are arranged in the ratchet tooth grooves and are changed by the combination mode of the elastic parts and the ratchets, so that the hub structure can be suitable for the interchange of a left-arranged chain and a right-arranged chain of a performance type bicycle.

Description

Bicycle hub left and right drive interchangeable structure

technical field

The utility model relates to a bicycle flower hub structure, in particular to a left and right driving interchange structure of a bicycle flower hub. The transformation of the combination mode makes the flower hub structure suitable for the left chain and the right chain of a performance bicycle. Interchangeable chains.

Background technique

Press, a known bicycle flower hub structure, please shown in Figure 10 and Figure 11, it includes: a mandrel 60, a flower hub 70, an actuation ring 80 and a ratchet plate 90 constitute, a mandrel 60 wears A plurality of bearings 61 are provided, and the bearings 61 are inserted into the hub 70 to form pivot joint positioning. The inner wall of the side end of a hub 70 is integrally provided with a fixing seat 71, and the inner edge of the fixing seat 71 is arranged in a square concave-convex shape. , an actuating ring 80 is placed on the inner side of the fixed seat 71, and is fixed with a concave-convex surface 81, and the inner wall of the actuating ring 80 is also a square concave-convex surface 82, and a ratchet plate 90 has a toothed plate 91 and a ratchet seat 92 two parts, the ratchet seat 92 is provided with a plurality of ratchet slots 93, and the ratchet slots 93 are provided with springs 94 and ratchets 95, and then inserted into the flower hub 70 by the ratchet seat 92 end, The ratchet seat 92 is located inside the actuating ring 80, and the ratchet 95 is pushed against the concave-convex surface 82 of the inner wall of the actuating ring 80 by the spring 94, and then the two ends of the hub 70 are screwed with fixing screws. parts, thereby forming a combination of bicycle hub structures.

When the bicycle moves forward and rotates the ratchet plate 90, the ratchet 95 can withstand the concave-convex surface 82 of the actuating ring 80 outwards, which can drive the hub 70 to rotate in the same direction, and when the ratchet plate 90 does not rotate At this time, the rotation of the flower hub 70 cannot drive the ratchet plate 90 to rotate. If the known bicycle flower hub structure is applied to the interchange of the left chain and the right chain of a performance bicycle, the spring 94 at the ratchet seat 92 will By exchanging the position with the ratchet 95, the effect of exchanging the left chain and the right chain suitable for performance bicycles can be achieved.

It is not difficult to find that there are still some deficiencies in the above-mentioned known structure in detail, and the main reasons are summarized as follows:

1. The ratchet 95 is pushed against the inner wall of the actuating ring 80 by the push of the spring 94, thereby driving the hub 70 to rotate, but the inner wall of the actuating ring 80 is a concave-convex surface 82 of a square bump, so that the ratchet The collision area of 95 is too small, and the structural strength is insufficient.

2. The inner wall of the actuation ring 80 is a concave-convex surface 82 of a square bump, which increases the collision height of the ratchet 95, that is, the volume of the actuation ring 80 is larger, resulting in the swing range of the ratchet 95 on the actuation ring 80 increase, and the sensitivity may be insufficient.

3. The actuating ring 80 is accommodated at the fixed seat 71 of the hub 70, and the inner wall of the hub 70 and the ratchet disc 90 form axial positioning, and the actuating ring 80 and the ratchet disc 90 still have a proper The gap makes the actuating ring 80 have a space for axial displacement, that is, it is easy to cause wear of the ratchet plate 90 and the actuating ring 80, thereby reducing the durability of the hub structure.

Utility model content

The purpose of the utility model is to provide a bicycle hub left and right drive interchangeable structure to overcome the defects in the known technology.

In order to achieve the above purpose, the utility model provides a left and right drive interchangeable structure for the bicycle hub, which includes: a hub, a spindle, a fixed ring, a moving ring, ratchet parts, a hub Pivoted to the axle of the rear wheel of the bicycle, there is an accommodation space in the axial direction. The inner wall of the accommodation space is provided with a retaining edge, a concave-convex ring, and a locking groove in sequence from the inside to the outside, and a stopper is fixed on the retaining edge. , and the stopper blocks the bearing inside the hub inwardly, the concave-convex ring forms an inner surface with square concave-convex intervals, and the mandrel passes through the accommodating space and forms a pivot connection with a plurality of bearings, and a buckle is fixed at the groove The buckle, the buckle is a C-shaped buckle, and a fixing ring is set on the concave-convex ring of the hub, and cooperates to form outer bumps that can be buckled together, and the inner wall of the fixing ring is provided with a plurality of inner The inner bumps are arranged equidistantly in a square shape, and a moving ring is placed inside the fixed ring, and the concave-convex surface formed on the outer wall is fastened with the inner bumps of the fixing ring, and the moving ring The inner wall is formed with a one-way inclined helical tooth surface, and the two ends of a ratchet part are respectively formed with a tooth plate and a ratchet seat, and are sleeved on the mandrel with a through hole, and the ratchet seat is accommodated in the flower. At the concave-convex ring of the hub accommodation space, the chainring can be a multi-piece combination structure, thereby achieving the effect of rear wheel speed change. The outer surface of the ratchet seat is provided with a plurality of ratchet slots, and the two sides of the ratchet slots The first ratchet hole and the second ratchet hole are respectively formed on the side, and the elastic member and the ratchet are installed in the ratchet groove, and the bottom end of the ratchet is provided with a ratchet that can be locked in the first ratchet hole or the second ratchet hole. The positioning end of the two ratchet holes and the end of the tooth disc are locked with a locking part, that is, the positioning ratchet part is located at the accommodating space end of the flower hub.

When performing the exchange of the left chain and the right chain, as in order to adapt to the needs of the performance venue, the ratchet part is installed in the bicycle state of the right chain, the elastic part is arranged in the first ratchet hole, and the ratchet The teeth are set in the second ratchet hole, and when the bicycle moves forward, the ratchet can touch the helical tooth surface of the linkage ring to form a linkage effect. The interlocking ring is put into the hub in the other direction, and the concave and convex surface of the interlocking ring can still be engaged with the inner protrusion of the fixed ring, and can form the helical tooth surface of the interlocking ring to produce a deflection in the other direction , and the elastic member and the ratchet of the device at the ratchet seat are matched with the bicycle with the left chain, the elastic member is changed to be arranged at the second ratchet hole, and the ratchet is arranged at the first ratchet hole, and the combination thereof The transformation of the mode can produce the same bicycle actuation mode as that of the right chain, so that the flower hub structure can be applied to the exchange of the left chain and the right chain of the performance bicycle.

The utility model compares the effect that known technology has:

1. By changing the combination mode, it can cooperate with the exchange of the left chain and the right chain of the performance bicycle, and the ratchet is in contact with the helical tooth surface of the interlocking ring. The tooth-shaped conflict area is large, thereby improving the strength of the structure and increasing its durability.

2. The interlocking ring has a helical tooth surface that is inclined in one direction, and the helical tooth surface and the ratchet at the ratchet seat form an action. The helical tooth surface can reduce the collision height and reduce the volume of the interlocking ring , that is, to reduce the swing range of the ratchet to improve its sensitivity.

3. The fixed ring is fixed on the concave-convex ring of the hub, and the interlocking ring is fixed on the inner end of the fixed ring, and then the stopper and buckle are clamped on both sides to prevent the fixed ring from interlocking. The ring produces axial sliding, thereby reducing its axial friction and collision, so as to reduce the rotational resistance of the ratchet and increase its durability.

Description of drawings

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a three-dimensional exploded view of the utility model.

Fig. 3 is a side sectional view of the utility model.

Fig. 4 is the sectional action figure (1) of the ratchet place of the present utility model.

Fig. 5 is a schematic view of a bicycle with a chain on the right side of the present invention.

Fig. 6 is the sectional action figure (2) of the ratchet place of the present utility model.

Fig. 7 is a schematic view of a bicycle with a chain on the left side of the present invention.

Fig. 8 is a position diagram of the ratchet of the utility model arranged on the bicycle with the chain on the right.

Fig. 9 is a position diagram of the ratchet tooth of the utility model arranged on the bicycle with the chain on the left.

Fig. 10 is a perspective view of the known technology.

Fig. 11 is a sectional view of the ratchet in the prior art.

Explanation of main component symbols in the drawings

The utility model part:

Hub -----10 Accommodating space---11

Retaining edge -----12 Concave-convex ring----13

Groove-----14 Block-----15

Bearing -----16 Buckle----17

Mandrel -----20

Fixing ring ---- 30 Outer bump ---- 31

Inner bump ---- 32

Linkage ring ---- 40 Concave-convex surface ---- 41

Helical tooth surface----42 Perforation-----43

Ratchet ---- 50 chainring ----- 51

Ratchet seat----52 Ratchet slot----521

Ratchet hole--522 Second ratchet hole--523

Elastic piece ---- 53 ratchet ----- 54

Through hole -----55 Locking piece----56

Known technology part:

Mandrel -----60 Bearing -----61

Hub-----70 Fixed seat----71

Actuating ring----80 Concave-convex surface----81

Bump surface---82

Ratchet plate----90 tooth plate-----91

Ratchet seat----92 Ratchet slot----93

Spring -----94 Ratchet -----95

Detailed ways

In order to have a further understanding and recognition of the purpose, features and effects of the present utility model, the detailed description is as follows with reference to the accompanying drawings.

Please refer to Fig. 1 and Fig. 2 firstly, a left and right drive interchangeable structure of a bicycle hub, which includes: a hub 10, a mandrel 20, a fixed ring 30, a moving ring 40, and a ratchet part 50 Assembled, a hub 10 is pivotally connected to the wheel shaft of the rear wheel of the bicycle, and an accommodating space 11 is opened in the axial direction, and the inner wall of the accommodating space 11 is sequentially provided with a retaining edge 12, concave and convex The ring 13 and the clamping groove 14, the retaining member 15 is fixed at the retaining edge 12, and the retaining member 15 blocks the bearing 16 on the inside of the hub 10 inwardly. Through the accommodating space 11, a plurality of bearings 16 are used to form a pivot connection, and the locking groove 14 is fixed with a buckle 17, the buckle 17 is a C-shaped buckle, and a fixing ring 30 is accommodated in the unevenness of the hub 10 ring 13, and cooperate to form an outer protrusion 31 that can be fastened together, and the inner wall of the fixed ring 30 is provided with a plurality of inner protrusions 32, and the inner protrusions 32 are arranged equidistantly in a square shape. The moving ring 40 is accommodated inside the fixed ring 30, and the concave-convex surface 41 formed on the outer wall is snapped and fixed with the inner protrusion 32 of the fixed ring 30, while the inner wall of the interlocking ring 40 is formed with a unidirectionally deflected oblique The tooth surface 42, and the fixed ring 30 and the interlocking ring 40 are all made of a steel material, and the interlocking ring 40 is provided with a plurality of perforations 43 in the longitudinal direction, so as to facilitate the insertion and removal of hand tools. The two ends of the ratchet member 50 are respectively formed with a tooth plate 51 and a ratchet seat 52 , and the through hole 55 is sleeved on the mandrel 20 , and the ratchet seat 52 is accommodated in the concave-convex ring of the accommodating space 11 of the hub 10 At 13 places, the chainring 51 can be a multi-piece combination structure, thereby achieving the effect of rear wheel speed change. The outer surface of the ratchet seat 52 is provided with a plurality of ratchet grooves 521, and the two sides of the ratchet grooves 521 are respectively A first ratchet hole 522 and a second ratchet hole 523 are formed, and an elastic member 53 and a ratchet 54 are installed in the ratchet groove 521, and the bottom end of the ratchet 54 is provided with a button that can be engaged with the first ratchet. The positioning end 541 of the gear hole 522 or the second ratchet hole 523, and a locking member 56 is provided on the end of the tooth plate 51, that is, the positioning ratchet member 50 is located at the end of the accommodation space 11 of the hub 10, and the ratchet 54 Made of a steel material.

For the combination of its structure, please refer to Fig. 2 and Fig. 3 again. A plurality of bearings 16 are arranged in the hub 10 and pass through the mandrel 20 to form a pivot connection. There is a stopper 15, and the stopper 15 blocks the bearing 16 at the inner end, which has the effect of preventing the displacement of the bearing 16. The fixed ring 30 is accommodated in the accommodation space 11 of the hub 10, and the outer protrusion 31 is combined with the concave-convex ring 13 Positioning, the fixed ring 30 is fixed by the buckle of the concave-convex ring 13, and can be tightly fitted and cannot be disassembled. The concave-convex surface 41 is fixed with the inner protrusion 32 of the fixed ring 30, and then the buckle 17 is fastened to the groove 14 of the hub 10, and the stopper 15 and the buckle 17 are positioned between the retaining edge 12 and the groove. 14 places, thus sandwiching the fixed ring 30 and the interlocking ring 40 at the concave-convex ring 13 can prevent the axial slipping of the fixed ring 30 and the interlocking ring 40, and the ratchet seat 52 of a ratchet member 50 The elastic part 53 and the ratchet 54 are accommodated at the place, and the elastic part 53 and the ratchet 54 can be installed interchangeably in the first ratchet hole 522 or the second ratchet hole 523 respectively. The end of the ratchet seat 52 is placed in the accommodating space 11 of the hub 10, and the ratchet seat 52 is accommodated at the inner end of the linkage ring 40. At this time, the ratchet 54 is opposed to the linkage by the outer top of the elastic member 53. The helical tooth surface 42 of the ring 40, wherein the interlocking ring 40 and the ratchet 54 are all made of steel material, which can increase the strength of the structure, and the locking part 56 is screwed on the mandrel 20, and is locked to the ratchet. The tooth plate 51 end of the tooth member 50 is tightened, and the ratchet member 50 is fixed on the hub 10 .

For the actual actuation situation, please refer to Fig. 3, 4, 5 and as shown in Fig. 2, when the pedal of the bicycle is stepped on to make it move forward, the chain drives the toothed disc 51 of the ratchet member 50 to rotate The ratchet 54 in the ratchet groove 521 is stretched outward by the top of the elastic member 53. Here it is preset that the elastic member 53 is arranged in the first ratchet hole 522, and the ratchet 54 is arranged in the second ratchet hole 523. At this time, the outer end of the ratchet 54 is against the helical tooth surface 42 on the inner surface of the interlocking ring 40, so that the ratchet part 50 cannot rotate by itself. Synchronization is formed, and the outer bump 31 of the fixed ring 30 is synchronized with the concave-convex ring 13, which can drive the interlocking ring 40, the fixed ring 30 and the flower hub 10 to rotate in the forward direction of the wheel. When the bicycle slides, the flower hub 10 The forward rotation is formed, and the fixed ring 30 and the interlocking ring 40 are interlocked. At this time, the ratchet 54 is pushed by the helical tooth surface 42 and swings toward the end of the elastic member 53. The above-mentioned action can have a one-way drive flower. The effect of hub 10.

In order to adapt to the needs of the performance venue when performing the exchange of the left chain and the right chain on the performance bicycle, please refer to Figures 6, 7, 8, and 9 for more information. Figures 6 and 7 are ratchet parts 50 devices. In the state of the bicycle with the chain on the right, as described in the above paragraph, the elastic member 53 is arranged in the first ratchet hole 522, and the ratchet 54 is arranged in the second ratchet hole 523, and the ratchet 54 moves forward on the bicycle , it can interfere with the helical tooth surface 42 of the interlocking ring 40 to form an interlocking effect, and then Fig. 8 and Fig. 9 show the state of the bicycle with the ratchet part 50 installed on the left chain. The combination of the hub structure is When combined, the interlocking ring 40 is put into the hub 10 in the other direction, and the concave-convex surface 41 of the interlocking ring 40 can still be engaged with the inner protrusion 32 of the fixed ring 30, and can form the inclined surface of the interlocking ring 40. The tooth surface 42 produces a deflection in another direction, and the elastic member 53 and the ratchet 54 installed at the ratchet seat 52 are matched with the bicycle with the left chain, and the elastic member 53 is changed to be arranged in the second ratchet hole 523, And the ratchet 54 is arranged at the first ratchet hole 522, and the conversion of its combination mode can produce the same bicycle actuation mode as that of the right-hand chain, so that the flower hub structure can be applied to the left-hand chain of the performance bicycle. Interchangeable with right chain.

By the structure of above-mentioned specific embodiment, can obtain following benefit:

1) By changing the combination mode, it can cooperate with the exchange of the left chain and the right chain of the performance bicycle, and the ratchet 54 is in contact with the helical tooth surface 42 of the interlocking ring 40, and the helical tooth has a conflicting area ratio The well-known square tooth shape has a large contact area, which can improve the structural strength and increase its durability;

2) The interlocking ring 40 has a helical tooth surface 42 that is inclined in one direction, and forms an action with the helical tooth surface 42 and the ratchet 54 at the ratchet seat 52. The helical tooth surface 42 can reduce the collision height, and Reducing the volume of the interlocking ring 40 can reduce the swing range of the ratchet 54 to improve its sensitivity;

3) The fixed ring 30 is fixed on the concave-convex ring 13 of the hub 10, and the interlocking ring 40 is fixed on the inner end of the fixed ring 30, and then the stopper 15 and the buckle 17 are sandwiched on both sides, that is It can prevent the fixed ring 30 and the interlocking ring 40 from sliding axially, thereby reducing their axial friction and collision, so as to reduce the rotational resistance of the ratchet member 50 and increase its durability.

The above is only a preferred embodiment of the present utility model, and should not limit the scope of the present utility model implementation; within the scope covered by the claims of the utility model.

Claims (8)

1, drive the exchange structure about a kind of bicycle hub, it is characterized in that, include: a flower hub, an axle, a set collar, an interlock ring, rachet combine;

One flower hub is articulated in the wheel shaft place of bicycle rear, it axially offers accommodation space, the inwall place of this accommodation space is sequentially provided with retaining edge, concavo-convex ring and Ka Gou from inside to outside, retaining edge place is fixed with block piece, and block piece inwardly blocks the bearing of colored hub inboard, this concavo-convex ring is formed with the medial surface at square concavo-convex interval, and this Ka Gouchu is fixed with button and supports part again;

One axle is passed accommodation space and is formed pivot joint with a plurality of bearings;

One set collar is located in the concavo-convex ring place of colored hub, and cooperates and to be formed with the outer projection that can be interlocked, and the madial wall of set collar then be provided with a plurality of in projections;

One interlock ring is placed in the inside of set collar, and with the male and fomale(M﹠F) of outer wall formation and the interior projection snap fit of set collar, the inwall place of interlock ring then is formed with the pitch face of unidirectional deflection;

The two ends of one rachet are formed with fluted disc and ratchet base respectively, and be sheathed on the axle place with through hole, and ratchet base is located in the concavo-convex ring place of colored hub accommodation space, the outside face of ratchet base offers a plurality of ratchet slots, the dual-side of this ratchet slot is formed with the first ratchet hole and the second ratchet hole respectively, be equiped with elastic component and ratchet in this ratchet slot again, fluted disc end lock is provided with a closure in addition, promptly locatees the accommodation space end of rachet in the flower hub.

2, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that, it is C shape button that button supports part.

3, drive to exchange structure about bicycle hub according to claim 1, it is characterized in that, the interior projection shape that is square is at interval equidistantly arranged.

4, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that fluted disc is the multiple-piece unitized construction.

5, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that elastic component is arranged at the first ratchet hole, and ratchet is arranged at the second ratchet hole.

6, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that elastic component is arranged at the second ratchet hole, and ratchet is arranged at the first ratchet hole.

7, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that set collar, interlock ring and ratchet are steel material.

8, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that, the interlock ring vertically offers a plurality of convenient perforation of removing use for hand tool plugs.

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