A kind of folding bicycle
Technical field
The utility model relates to a kind of folding bicycle.
Background technology
Folding bicycle of the prior art comprises vehicle frame, front-wheel, trailing wheel with expanded position and folding position, is arranged on saddle on the described vehicle frame, is used to drive the driver train that described front-wheel rotates or described trailing wheel rotates.In order to pursue folding convenient, the vehicle frame that has only possesses a folding turning point or two folding turning points, thereby lockout mechanism pins described vehicle frame by folding turning point, and lockout mechanism can pin described vehicle frame, but the less stable of pinning the back car load.
Summary of the invention
The utility model purpose provides a kind of folding bicycle, its folding convenient, and the stability after launching is better.
For achieving the above object, the technical solution adopted in the utility model is: a kind of folding bicycle, comprise vehicle frame, front-wheel, trailing wheel, be arranged on saddle on the described vehicle frame, be used to drive the driver train that described front-wheel rotates or described trailing wheel rotates with expanded position and folding position
Described vehicle frame comprises front fork, is set in the preceding standpipe on the described front fork, handlebar, the back vent that the bottom is connected with the top of described front fork rotationally, described front-wheel is arranged on the bottom of described front fork, described trailing wheel is arranged on the bottom of described back vent
Standpipe is provided with preceding Connection Block before described, described vehicle frame also comprises the back Connection Block, leading section and described before the top of the Connection Block boxed rod before the bonded assembly that rotates, leading section and described before the bottom of the Connection Block lower link before the bonded assembly that rotates, leading section and described before the lower link bonded assembly pull bar that rotates, be arranged on the neutral tube on the Connection Block of described back, the rearward end of boxed rod rotates with the top of described back Connection Block and is connected before described, the rearward end of lower link is connected rotatedly with described back Connection Block before described, the front portion of described back vent is connected rotatedly with the bottom of described back Connection Block, the rearward end of described pull bar is connected rotatedly with the leading section of described back vent, Connection Block before described, boxed rod before described, lower link and described back Connection Block constitute four-bar linkage before described, lower link before described, described pull bar, described back vent and described back Connection Block constitute four-bar linkage, described saddle is arranged on the described neutral tube, and described folding bicycle also comprises the lockout mechanism that is used for described vehicle frame is locked in expanded position.
Described neutral tube along the above-below direction of described back Connection Block obliquely and be slidingly arranged on the Connection Block of described back.
The bottom of described neutral tube has block piece, and when described vehicle frame is in expanded position or is in by the folding position in the process of expanded position conversion, described back Connection Block is against on the described block piece.
Described lockout mechanism comprises the top of upper end and the described neutral tube bonded assembly bracket of rear mounting that rotates, when described vehicle frame is under the expanded position, the bottom of described bracket of rear mounting is against the front portion of described back vent, when described vehicle frame is under the folding position, the bottom of described bracket of rear mounting and the leading section of described back vent are separated.
The top of described neutral tube has upper limit spare, and when described vehicle frame is under the expanded position, described bracket of rear mounting is against on the described upper limit spare.
Has first groove on the described back vent, when described vehicle frame is under the expanded position, the bottom of described bracket of rear mounting is inserted in described first groove, and when described vehicle frame is under the folding position, the bottom of described bracket of rear mounting and described first groove are separated.
Has second groove on the described neutral tube, when described vehicle frame is under the expanded position, the bottom of described bracket of rear mounting and described second groove will break away from, and when described vehicle frame is under the folding position, the bottom of described bracket of rear mounting is inserted in described second groove.
Before described boxed rod with described before the place of being rotationally connected of Connection Block be positioned at described before lower link with described before the top at the place that is rotationally connected of Connection Block, described before boxed rod with described after the place of being rotationally connected of Connection Block be positioned at described preceding lower link and described after the top that is rotationally connected and locates of Connection Block.
The place of being rotationally connected of lower link and described back Connection Block is positioned at the place ahead at the place that is rotationally connected of described back vent and described back Connection Block before described, the place of being rotationally connected of described back Connection Block and described preceding lower link is positioned at the top at the place that is rotationally connected of described pull bar and described preceding lower link, and the place of being rotationally connected of described pull bar and described back vent is positioned at the top at the place that is rotationally connected of described back Connection Block and described back vent.
Described vehicle frame also comprises the front support stand with Telescopic, and an end of described front support stand is connected rotatedly with described preceding lower link, and the other end of described front support stand is connected rotatedly with described preceding boxed rod.
Described vehicle frame also comprises front support stand, one end of described front support stand with described before parts in the boxed rod, two parts of preceding lower link be connected rotatedly, the other end of described front support stand is slidingly connected with another parts in described preceding boxed rod, two parts of preceding lower link.
The top of described back Connection Block is provided with carrying handle.
Described saddle comprises the saddle vertical rod, is arranged on the seat of described saddle vertical rod upper end, described neutral tube has tube chamber, described saddle vertical rod can be inserted in the described tube chamber slidably, and is provided with the blocking device that both is locked in relative position between described saddle vertical rod and the described neutral tube.
Because technique scheme utilization, the utility model compared with prior art has following advantage: because Connection Block before described, boxed rod before described, lower link and described back Connection Block constitute four-bar linkage before described, lower link before described, described pull bar, described back vent and described back Connection Block constitute four-bar linkage, carry out interlock by pull bar between two four-bar linkages, vehicle frame folding is convenient, and only needing just can be with described vehicle frame locking with locking between two connecting rods, be about to two four-bar linkage lockings, the stability of the described vehicle frame in locking back better.
Description of drawings
Accompanying drawing 1 is in scheme drawing under the expanded position for the utility model;
Accompanying drawing 2 is in scheme drawing under the folding position for the utility model;
Accompanying drawing 3 is inserted in the amplification view at this place in second groove for the bottom of bracket of rear mounting under accompanying drawing 2 states;
Accompanying drawing 4 is inserted in the amplification view at this place in first groove for the bottom of bracket of rear mounting under accompanying drawing 1 state.
Wherein: 1, vehicle frame; 2, front-wheel; 3, trailing wheel; 4, handlebar; 5, preceding standpipe; 6, front fork; 7, saddle; 8, preceding boxed rod; 9, preceding lower link; 10, front support stand; 11, back Connection Block; 12, pull bar; 13, back vent; 14, neutral base; 15, neutral tube; 16, bracket of rear mounting; 17, upper limit spare; 18, folding socket; 19, lower limit part; 20, carrying handle; 21, preceding Connection Block; 22, block piece; 23, first groove; 24, second groove.
The specific embodiment
Shown in accompanying drawing 1, accompanying drawing 2, a kind of folding bicycle, comprise vehicle frame 1, front-wheel 2, trailing wheel 3 with expanded position and folding position, be arranged on saddle 7 on the described vehicle frame 1, be used to drive the driver train that described front-wheel 2 rotates or described trailing wheel 3 rotates, described driver train is whole to be arranged on the described back vent 13.
Described vehicle frame 1 comprises front fork 6, is set in the preceding standpipe 5 on the described front fork 6, handlebar 4, the back vent 13 that the bottom is connected with the top of described front fork 6 rotationally, described front-wheel 2 is arranged on the bottom of described front fork 6, described trailing wheel 3 is arranged on the bottom of described back vent 13
Connection Block 21 before standpipe 5 is provided with before described, described vehicle frame 1 also comprises back Connection Block 11, leading section and described before the top of Connection Block 21 boxed rod 8 before the bonded assembly that rotates, leading section and described before the bottom of Connection Block 21 lower link 9 before the bonded assembly that rotates, leading section and described before the lower link 9 bonded assembly pull bar 12 that rotates, be arranged on the neutral tube 15 on the Connection Block 11 of described back, the rearward end of boxed rod 8 rotates with the top of described back Connection Block 11 and is connected before described, the rearward end of lower link 9 is connected rotatedly with described back Connection Block 11 before described, the front portion of described back vent 13 is connected rotatedly with the bottom of described back Connection Block 11, the rearward end of described pull bar 12 is connected rotatedly with the leading section of described back vent 13, Connection Block 21 before described, boxed rod 8 before described, lower link 9 and described back Connection Block 11 constitute four-bar linkage before described, lower link 9 before described, described pull bar 12, described back vent 13 and described back Connection Block 11 constitute four-bar linkage, described saddle 7 is arranged on the described neutral tube 15, and described folding bicycle also comprises the lockout mechanism that is used for described vehicle frame 1 is locked in expanded position.
Described neutral tube 15 optimal ways are along the above-below direction of described back Connection Block 11 obliquely and be slidingly arranged on the Connection Block 11 of described back.Described neutral tube 15 also can be fixed on the Connection Block 11 of described back.
Shown in accompanying drawing 1, accompanying drawing 2, the bottom of described neutral tube 15 has block piece 22, when described vehicle frame 1 is in expanded position or is in by the folding position in the process of expanded position conversion, described back Connection Block 11 is against on the described block piece 22, and this block piece 22 prevents that described neutral tube 15 from skidding off from described back Connection Block 11.
Described lockout mechanism comprises the top of upper end and the described neutral tube 15 bonded assembly bracket of rear mounting 16 that rotates, when described vehicle frame 1 is under the expanded position, the bottom of described bracket of rear mounting 16 is against the front portion of described back vent 13, when described vehicle frame 1 is under the folding position, the leading section of the bottom of described bracket of rear mounting 16 and described back vent 13 is separated.This lockout mechanism not only two four-bar linkages is locked in expanded position, has also locked the position of described neutral tube 15 with respect to described back Connection Block 11.Described lockout mechanism also can adopt other structure, as long as connecting rod mechanism can be locked in expanded position.But at that rate, just need other lockout mechanism to be used for locking the position of described neutral tube 15 with respect to described back Connection Block 11.
The top of described neutral tube 15 has upper limit spare 17, and when described vehicle frame 1 is under the expanded position, described bracket of rear mounting 16 is against on the described upper limit spare 17.Described upper limit spare 17 can be connected the top of described neutral tube 15 rotationally, when described vehicle frame 1 is folded, can clockwise rotate described upper limit spare 17.When described vehicle frame 1 is under the folding position, described upper limit spare 17 is against on the described back vent (13), forbids that described back vent 13 rotates counterclockwise the effect that vehicle frame 1 is launched forbidden thereby play.
As shown in Figure 4, have first groove 23 on the described back vent 13, when described vehicle frame 1 is under the expanded position, the bottom of described bracket of rear mounting 16 is inserted in described first groove 23, prevents that described bracket of rear mounting 16 from rocking; When described vehicle frame 1 is under the folding position, the bottom of described bracket of rear mounting 16 and described first groove 23 are separated.
As shown in Figure 3, has second groove 24 on the described neutral tube 15, when described vehicle frame 1 is under the expanded position, the bottom of described bracket of rear mounting 16 and described second groove 24 will break away from, when described vehicle frame 1 is under the folding position, the bottom of described bracket of rear mounting 16 is inserted in described second groove 24, prevents that described bracket of rear mounting 16 from rocking.
Shown in accompanying drawing 1, accompanying drawing 2, before described boxed rod 8 with described before the place of being rotationally connected of Connection Block 21 be positioned at described before lower link 9 with described before the top at the place that is rotationally connected of Connection Block 21, described before the place of being rotationally connected of boxed rod 8 and described back Connection Block 11 be positioned at described before lower link 9 with described after the top that is rotationally connected and locates of Connection Block 11.
Shown in accompanying drawing 1, accompanying drawing 2, the place of being rotationally connected of lower link 9 and described back Connection Block 11 is positioned at the place ahead at the place that is rotationally connected of described back vent 13 and described back Connection Block 11 before described, described back Connection Block 11 with described before the place of being rotationally connected of lower link 9 be positioned at described pull bar 12 with described before the top at the place that is rotationally connected of lower link 9, described pull bar 12 and the place of being rotationally connected of described back vent 13 are positioned at the top that is rotationally connected and locates of described back Connection Block 11 and described back vent 13.
Described vehicle frame 1 also comprises the front support stand 10 with Telescopic, and an end of described front support stand 10 is connected rotatedly with described preceding lower link 9, and the other end of described front support stand 10 is connected rotatedly with described preceding boxed rod 8.
The another kind of scheme of described front support stand 10, there is not diagram, described vehicle frame 1 also comprises front support stand 10, one end of described front support stand 10 with described before parts in the boxed rod 8,9 two parts of preceding lower link be connected rotatedly, the other end of described front support stand 10 is slidingly connected with another parts in described preceding boxed rod 8,9 two parts of preceding lower link.
The top of described back Connection Block 11 is provided with the carrying handle 20 that is used for grabbing when folding.
Described saddle 7 comprises the saddle vertical rod, is arranged on the seat of described saddle vertical rod upper end, described neutral tube 15 has tube chamber, described saddle vertical rod can be inserted in the described tube chamber slidably, and is provided with the blocking device that both is locked in relative position between described saddle vertical rod and the described neutral tube 15.
Described vehicle frame 1 is converted to the folding position from expanded position, as shown in Figure 1, only need the described bracket of rear mounting 16 of cw pinching to make it to draw close with described neutral tube 15, up one carry to the described neutral tube 15 of lower slider and with carrying handle 20 this moment, described back vent 13 and described trailing wheel 3 clockwise rotate, under the effect of described pull bar 12, two four-bar linkages are all folding mutually, as shown in Figure 2, vehicle frame is just folding, and is folding fast simple, described upper limit spare 17 is against on the described back vent 13, described vehicle frame 1 is locked in the folding position, and this moment, front-wheel 2 all landed with trailing wheel 3, still can carry out behind the bicycle folding.
Described vehicle frame 1 is converted to expanded position from the folding position, as shown in Figure 2, described neutral tube 15 is upwards pulled up, described upper limit bar 17 is separated with described back vent 13, rotate counterclockwise described back vent 13 this moment, and when two four-bar linkages all are under the expanded position, promptly vehicle frame 1 is under the expanded position, described bracket of rear mounting 16 is against on the described back vent 13, just vehicle frame 1 is locked in expanded position.It is more stable after described vehicle frame 1 launches.
The described noun of locality such as forward and backward, upper and lower is that to be in expanded position at vehicle frame 1 undefined.