CN108657348B

CN108657348B - Folding driving structure and folding bicycle with same

Info

Publication number: CN108657348B
Application number: CN201710187785.1A
Authority: CN
Inventors: 张钊
Original assignee: Dongguan Prestige Sporting Products Co Ltd
Current assignee: Guangdong Qunwang Technology Co ltd
Priority date: 2017-03-27
Filing date: 2017-03-27
Publication date: 2020-04-07
Anticipated expiration: 2037-03-27
Also published as: CN108657348A; WO2018176709A1

Abstract

The invention discloses a folding vehicle applicable to a folding driving structure, which comprises a front vehicle rod and a rear vehicle rod, wherein the rear section of the front vehicle rod and the front section of the rear vehicle rod are respectively overlapped up and down, the middle part of the front vehicle rod and the front end of the rear vehicle rod are pivoted to form a first pivoting shaft, the folding driving structure comprises a first driving part, a shaft pin, a driving part and a pushing part, the driving part and the front end of the rear vehicle rod are pivoted to form a second pivoting shaft, the middle part of the driving part is provided with a clamping groove, and the shaft pin is clamped in the clamping groove; the front end of the pushing piece is pivoted with the rear end of the front vehicle rod to form a third pivoting shaft, and the rear end of the pushing piece is pivoted with the rear end of the driving piece to form a fourth pivoting shaft. The folding driving structure of the invention has the advantages of rapid folding and convenient folding. In addition, the invention also discloses a folding bicycle.

Description

Folding driving structure and folding bicycle with same

Technical Field

The invention relates to a folding bicycle, in particular to a folding driving structure.

Background

Along with the improvement of living standard of people, the living idea of personality, fashion, health and environmental protection starts to go deep into the heart of people, fashion and environmental protection living goods, vehicles and the like are pursued by more and more people, the electric vehicle is also developed into a symbol of fashion and healthy living mode from a simple walking tool and is one of the environmental protection ways of physical exertion, the storage space is saved, and the foldable electric vehicle is convenient to carry.

The existing folding electric vehicle is generally folded manually, but the existing folding mode generally operates and folds a plurality of mechanisms, so that the folding step is complicated, the folding speed is slow, and the use is inconvenient; further, in the case of the handicapped person, since it takes a lot of time and effort to fold the hand, it is inconvenient to some extent.

Disclosure of Invention

The invention aims to provide a folding driving structure which is rapid and convenient to fold.

The invention aims to provide a folding vehicle which is rapid and convenient to fold.

In order to achieve the above object, the folding cart applicable to the folding driving structure provided by the present invention includes a front cart rod and a rear cart rod, wherein a rear section of the front cart rod and a front section of the rear cart rod are respectively overlapped up and down, and a middle portion of the front cart rod is pivoted with a front end of the rear cart rod to form a first pivot shaft; the front end of the pushing piece is pivoted with the rear end of the front vehicle rod to form a third pivoting shaft, and the rear end of the pushing piece is pivoted with the rear end of the driving piece to form a fourth pivoting shaft; a quadrangle is formed among the first pivoting shaft, the second pivoting shaft, the third pivoting shaft and the fourth pivoting shaft, the first driving device pushes the shaft pins, the shaft pins push the driving piece, and then the front vehicle rod and the rear vehicle rod are folded relatively through deformation of the quadrangle.

Compared with the prior art, the front end of the driving piece is pivoted to the front end of the rear frame, the front end of the pushing piece is pivoted to the rear end of the front vehicle rod, the rear end of the pushing piece is pivoted to the rear end of the driving piece, so that a second pivot point, a third pivot point and a fourth pivot point are formed respectively, and a quadrangle is formed by the first pivot point formed by the pivoting of the front vehicle rod and the rear vehicle rod, so that the driving piece can be driven to rotate by the first drive through the shaft pin, the whole quadrangle is deformed, the front vehicle rod is finally rotated, and the folding of the front vehicle rod and the rear vehicle rod is realized; in the whole process, the folding bicycle can be completely unfolded or folded only by the first driving action, so that the folding bicycle is very simple to use, and the operation of a user is greatly facilitated.

Preferably, the slot is an open slot, an opening of the open slot faces the fourth pivot shaft to the second pivot shaft, a first elongated hole and a second elongated hole are formed in the driving member, the first elongated hole and the second elongated hole have the same direction as the opening, the second pivot shaft is slidably disposed in the first elongated hole, and the fourth pivot shaft is slidably disposed in the second elongated hole. The clamping groove is set to be an open groove, the driving piece is provided with the first elongated hole and the second elongated hole, so that the driving piece can slide in the limit range of the first elongated hole and the second elongated hole, the open groove and the shaft pin are separated from each other, the driving piece can be separated from the driving of the first driving piece, the user can fold or unfold the driving piece by hand, the manual and automatic integrated operation mode is realized, and the requirements of different users are met.

Specifically, the folding driving structure further comprises a second driver, and the second driver drives the driving member to slide along the direction of the first elongated hole, so that the clamping groove and the shaft pin are separated from each other.

More specifically, the folding driving structure further includes a first elastic element, and the first elastic element provides an elastic force for engaging the engaging groove with the shaft pin. The first elastic element can enable the driving piece to be kept connected with the first driving piece, and therefore the folding mode of the first driving piece is used by default for the folding vehicle.

More specifically, the folding driving structure further comprises a connecting member, one end of the connecting member is coaxially pivoted with the second pivoting shaft, and the other end of the connecting member is coaxially pivoted with the fourth pivoting shaft; one end of the first elastic element is connected with the connecting piece, and the other end of the first elastic element is connected with the driving piece. The connecting piece can be conveniently provided with the first elastic element, so that the first elastic element generates elastic force in the sliding direction of the driving piece, and the driving piece can be accurately reset.

More specifically, the second drive comprises an operating member which is pivoted coaxially with the fourth pivot axis, and the driving member can be operated quickly and conveniently by the operating member, so that the folding can be switched from the first drive to the second drive quickly.

More specifically, the operating part is provided with a first pin, a hook body which is in sliding abutting contact with the first pin is arranged at the rear end of the driving part, and the operating part is operated to enable the first pin to rotate around the fourth pivot shaft, so that the hook body is pushed to enable the driving part to slide, the open slot is separated from the shaft pin, and the folding of the folding bicycle is achieved.

Preferably, a third elongated hole is formed at the rear end of the pushing member, and the fourth pivot shaft is slidably disposed in the third elongated hole.

Specifically, the folding driving structure further comprises a first locking hook, the middle of the first locking hook is pivoted to the rear end of the front vehicle rod, the inner side of the rear vehicle rod extends out of the locking shaft, and the first locking hook is buckled on the locking shaft when the folding vehicle is unfolded. The front vehicle rod and the rear vehicle rod are locked by the first locking hook, so that the folding vehicle is safer when unfolded.

Specifically, a first abutting portion extends from one side of the first locking hook in a bending mode, a second pin is arranged on the driving piece, and the driving piece abuts against the first abutting portion through the second pin so as to drive the first locking hook to be separated from the locking shaft. Through setting up second round pin post and first top of supporting to can make the driving piece drives at the folding car of drive before folding up first locking hook breaks away from the locking axle realizes preceding car pole with the unblock of back car pole, simultaneously because the effect in third elongated hole can first locking hook does not break away from avoid during the locking axle preceding car pole with the back car pole takes place to fold up relatively, prevents to interfere and the card is dead.

More specifically, a second elastic element is disposed between the upper end of the first locking hook and the front vehicle rod, and the first locking hook is buckled with the locking shaft. The first locking hook can be automatically buckled with the locking shaft by utilizing the second elastic element, and the first locking hook is prevented from being accidentally separated from the locking shaft, so that the folding bicycle is safer when being unfolded.

Specifically, the folding driving structure further comprises a second locking hook, the second locking hook is pivoted to the front vehicle rod, the locking shaft protrudes from the inner side of the rear vehicle rod, and the second locking hook is buckled on the locking shaft when folded. The front vehicle rod and the rear vehicle rod are locked by the second locking hook, so that the folding vehicle is safer after being folded.

More specifically, one side of the second locking hook extends out of the second abutting portion in a bending mode, a third pin is arranged on the driving piece, and the driving piece drives the second locking hook to be separated from the locking shaft through the third pin. Through the arrangement of the third pin column and the second abutting portion, the driving piece can firstly drive the second locking hook to be separated from the locking shaft before the driving piece drives the folding bicycle to be unfolded, and the unlocking of the front bicycle rod and the rear bicycle rod is realized.

More specifically, a third elastic element is arranged between the upper end of the second locking hook and the front vehicle rod, and the second locking hook is buckled with the locking shaft. The third elastic element can enable the second locking hook to be automatically buckled with the locking shaft, and the second locking hook is prevented from being accidentally separated from the locking shaft, so that the folding bicycle is safer when folded.

Preferably, the first driver includes an electric push rod, a middle shaft, a first connecting arm and a second connecting arm, the middle shaft and the second pivoting shaft are coaxially disposed, one end of the electric push rod is pivoted to the rear vehicle lever, an output end of the electric push rod is pivoted to one end of the first connecting arm, the other end of the first connecting arm is fixed to the middle shaft, one end of the second connecting arm is fixed to the shaft pin, and the other end of the second connecting arm is fixed to the middle shaft.

The utility model provides a folding car, includes front wheel support, preceding car pole, rear wheel support, back car pole and folding drive structure, the front end of preceding car pole with the pin joint of front wheel support, the back end of preceding car pole with the anterior segment of back car pole is overlapped from top to bottom respectively, just the middle part of preceding car pole with the front end pin joint of back car pole forms first pin joint axle, the rear end of back car pole with the pin joint of rear wheel support, folding drive structure sets up expand or fold up with drive both between preceding car pole and the back car pole.

Preferably, the folding vehicle further comprises a seat support rod, a linkage rod, a seat and a swing rod; the lower end of the seat supporting rod is fixed with the rear wheel bracket, and the upper end of the seat supporting rod is pivoted with the front end of the seat; the linkage rod and the seat supporting rod are arranged in a crossed mode, the middle portions of the linkage rod and the seat supporting rod are mutually pivoted, the lower end of the linkage rod is pivoted with the rear end of the front vehicle rod, the upper end of the linkage rod is pivoted with one end of the swing rod, and the other end of the swing rod is pivoted with the rear end of the seat.

Specifically, the folding vehicle further comprises seat armrests, and the lower ends of the seat armrests are fixedly connected with the swing rods.

Preferably, the folding bicycle further comprises a pull rod, one end of the pull rod is pivoted with the front wheel bracket, and the other end of the pull rod is pivoted with the rear bicycle rod.

Drawings

Fig. 1 is a schematic structural view of the folding cart of the present invention when unfolded.

Figure 2 is a side view of the folding cart of the present invention when unfolded.

Fig. 3 is a bottom view of the foldable vehicle of the present invention when unfolded.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural view of a folding driving structure of the folding bicycle of the invention.

Fig. 6 is an exploded view of the folding drive structure of the folding cart of the present invention.

Fig. 7 is a schematic structural view of the driving member in the folding driving structure of the folding bicycle of the present invention.

Fig. 8 is an enlarged view of a portion B in fig. 3.

Fig. 9 is a schematic view showing the state of each part after the folding driving structure of the folding bicycle of the present invention is folded.

Fig. 10 is a state view of the folded vehicle of the present invention after folding.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 and fig. 2, the folding cart 100 of the present invention includes a front wheel bracket 110, a front cart rod 120, a rear wheel bracket 130, a rear cart rod 140, a seat support rod 150, a linkage rod 160, a seat 170, a swing rod 180, a seat armrest 190, a pull rod 200, and the folding driving structure 300; the front end of the front vehicle rod 120 is pivoted with the front wheel bracket 110, the rear section of the front vehicle rod 120 and the front section of the rear vehicle rod 140 are respectively overlapped up and down, the middle part of the front vehicle rod 120 and the front end of the rear vehicle rod 140 are pivoted to form a first pivoting shaft a, and the rear end of the rear vehicle rod 140 is pivoted with the rear wheel bracket 130; the lower end of the seat supporting rod 150 is fixed with the rear wheel bracket 130, and the upper end is pivoted with the front end of the seat 170; the linkage rod 160 and the seat support rod 150 are arranged in a crossed manner, the middle parts of the linkage rod 160 and the seat support rod 150 are pivoted with each other, the lower end of the linkage rod 160 is pivoted with the rear end of the front vehicle rod 120, the upper end of the linkage rod 160 is pivoted with one end of the swing rod 180, and the other end of the swing rod 180 is pivoted with the rear end of the seat 170; the lower end of the seat armrest 190 is fixedly connected with the swing rod 180. One end of the pull rod 200 is pivotally connected to the front wheel bracket 110, and the other end is pivotally connected to the rear wheel rod 140; the pull rod 200 is arranged to move the front wheel bracket 110 horizontally to close and fold when being folded. The folding driving structure 300 is disposed between the front vehicle rod 120 and the rear vehicle rod 140 to drive the front vehicle rod and the rear vehicle rod to be unfolded or folded; in order to stably fold and unfold the foldable cart 100, the two sides of the foldable cart are respectively provided with the folding driving structure 300.

Referring to fig. 1 and fig. 3 to fig. 6, the folding driving structure 300 includes a first driving 1, a shaft pin 2, a driving member 3, a pushing member 4 and a second driving 5, the driving member 3 is pivoted with the front end of the rear frame member 140 to form a second pivot shaft b, a locking slot 31 is disposed in the middle of the driving member 3, and the shaft pin 2 is locked in the locking slot 31; the front end of the pushing piece 4 is pivoted with the rear end of the front vehicle rod 120 to form a third pivoting shaft c, and the rear end of the pushing piece 4 is pivoted with the rear end of the driving piece 3 to form a fourth pivoting shaft d; a quadrangle is formed among the first pivot shaft a, the second pivot shaft b, the third pivot shaft c and the fourth pivot shaft d, the first driving device 1 pushes the shaft pin 2, the shaft pin 2 pushes the driving element 3, and the front vehicle rod 120 and the rear vehicle rod 140 are relatively folded through deformation of the quadrangle. Specifically, the first drive 1 includes an electric push rod 11, a center shaft 12, a first connecting arm 13 and a second connecting arm 14, the center shaft 12 and the second pivot shaft b are coaxially disposed, one end of the electric push rod 11 is pivoted to the rear vehicle lever 140, an output end of the electric push rod 11 is pivoted to one end of the first connecting arm 13, the other end of the first connecting arm 13 is fixed to the center shaft 12, one end of the second connecting arm 14 is fixed to the shaft pin 2, and the other end of the second connecting arm 14 is fixed to the center shaft 12.

Referring to fig. 5, 6 and 7, the locking slot 31 is an open slot, an opening of the open slot is formed toward the direction from the fourth pivot axis d to the second pivot axis b, the driving member 3 is formed with a first elongated hole 32 and a second elongated hole 33, the extending direction of the first elongated hole and the extending direction of the second elongated hole are the same, the second pivot axis b is relatively slidably disposed in the first elongated hole 32, and the fourth pivot axis d is relatively slidably disposed in the second elongated hole 33. The clamping groove 31 is set as an open groove, the driving piece 3 is provided with the first elongated hole 32 and the second elongated hole 33, so that the driving piece 3 can slide in the limit range of the first elongated hole 32 and the second elongated hole 33, the open groove and the shaft pin 2 can be separated from each other, the driving piece 3 can be separated from the driving of the first driving piece 1, the user can fold or unfold the driving piece manually, the manual and automatic integrated operation mode is realized, and the requirements of different users are met.

As shown in fig. 5 and 6, the folding driving structure 300 further includes a first elastic element 6 and a connecting member 7, wherein one end of the connecting member 7 is coaxially pivoted with the second pivoting shaft b, and the other end of the connecting member 7 is coaxially pivoted with the fourth pivoting shaft d; one end of the first elastic element 6 is connected with the connecting part of the connecting piece 7, the other end of the first elastic element is connected with the connecting part of the driving piece 3, and the first elastic element 6 is an extension spring. The linear direction between the connecting portion of the connecting member 7 and the connecting portion of the driving member 3 is the same as the extending direction of the first elongated hole 32. The connecting member 7 is provided to facilitate the arrangement of the first elastic element 6, so that the direction of the elastic force generated by the first elastic element 6 is always in the sliding direction of the driving member 3, and the first elastic element 6 can always provide an elastic force for engaging the engaging groove 31 with the shaft pin 2, thereby ensuring that the driving member 3 can be accurately reset, and enabling the folding vehicle 100 to default to the folding mode of the first driving 1.

As shown in fig. 5 and 6, the second driver 5 can drive the driving member 3 to slide along the direction of the first elongated hole 32, so that the locking slot 31 and the shaft pin 2 are disengaged from each other. The second drive 5 comprises an operating member 51, the operating member 51 is pivotally connected to the fourth pivot axis d, and the operating member 51 can be used to operate the driving member 3 quickly and conveniently, so that the folding can be switched from the first drive mode to the second drive mode quickly. The operating element 51 is provided with two first pins 51a, the rear end of the driving element 3 is provided with two hooks 34 which are slidably abutted against the first pins 51a, and when the operating element 51 is operated, the first pins 51a can rotate around the fourth pivot shaft d, so that the hooks 34 are pushed to slide the driving element 3, so that the opening groove is separated from the shaft pin 2, and the folding of the folding cart 100 is realized. Since the present invention uses the two folding driving structures 300, for the convenience of operation, the two operating members 51 can be connected by one operating lever 52, so that the two operating members 51 can be operated at the same time by operating only one operating lever 52.

Referring to fig. 5, 6 and 7, the folding driving structure 300 further includes a first locking hook 8, when the first locking hook 8 is disposed, a third elongated hole 41 needs to be disposed at the rear end of the pushing member 4, and the fourth pivot shaft d is slidably disposed in the third elongated hole 41. The middle of the first locking hook 8 is pivotally connected to the rear end of the front rod 120, the inner side of the rear rod 140 protrudes out of the locking shaft 141, and the first locking hook 8 is fastened to the locking shaft 141 when the foldable vehicle 100 is unfolded. By locking the front bar 120 and the rear bar 140 with the first locking hook 8, the foldable car 100 can be more safely unfolded. Specifically, a first abutting portion 81 extends from one side of the first locking hook 8 in a bending manner, a second pin 35 is disposed on the driving member 3, and the driving member 3 can abut against the first abutting portion 81 through the second pin 35 to drive the first locking hook 8 to be separated from the locking shaft 141. A second elastic element 82 for fastening the first locking hook 8 to the locking shaft 141 is disposed between the upper end of the first locking hook 8 and the front vehicle rod 120, and the second elastic element 82 is a tension spring. Through setting up second round pin post 35 and first top 81, thereby can make driving piece 3 before the folding car 100 of drive folds, at first drive first locking hook 8 breaks away from locking axle 141 realizes the unblock of preceding car pole 120 with back car pole 140, simultaneously because third elongated hole 41 to the gliding effect of direction of fourth pin joint axle d, can avoid when first locking hook 8 does not break away from locking axle 141 the action of folding relatively takes place for preceding car pole 120 with back car pole 140, prevent to interfere and block. The second elastic element 82 can automatically buckle the first locking hook 8 with the locking shaft 141, so as to prevent the first locking hook 8 from accidentally disengaging from the locking shaft 141, and thus the foldable vehicle 100 is safer when being unfolded.

As shown in fig. 8, the folding driving structure 300 further includes a second locking hook 9, the second locking hook 9 is pivotally connected to the front rod 120, the inner side of the rear rod 140 protrudes out of the locking shaft 141, and the second locking hook 9 is locked to the locking shaft 141 when folded. The folding cart 100 can be more safely folded by locking the front bar 120 and the rear bar 140 with the second locking hook 9. Specifically, one side of the second locking hook 9 extends out of the second abutting portion 91 in a bending manner, the driving member 3 is provided with a third pin 36, and the driving member 3 drives the second locking hook 9 to be separated from the locking shaft 141 through the third pin 36. A third elastic element 92 for fastening the second locking hook 9 to the locking shaft 141 is disposed between the upper end of the second locking hook 9 and the front rod 120. By providing the third pin 36 and the second abutting portion 91, the driving element 3 can firstly drive the second locking hook 9 to disengage from the locking shaft 141 before driving the foldable vehicle 100 to unfold, so as to unlock the front vehicle lever 120 and the rear vehicle lever 140. The third elastic element 92 can automatically lock the second locking hook 9 to the locking shaft 141, so as to prevent the second locking hook 9 from being accidentally disengaged from the locking shaft 141, thereby making the folding cart 100 safer when being folded.

With the above and with reference to fig. 9 and 10, the operation principle of the folding cart 100 of the present invention is described in detail as follows:

when the electric putter 11 is in the retracted state in the unfolded state, at this time, the first locking hook 8 is fastened to the locking shaft 141, the second pivot shaft b is located at the rear end of the first elongated hole 32, the fourth pivot shaft d is located at the rear ends of the second elongated hole 33 and the third elongated hole 41, and the shaft pin 2 is fastened in the fastening groove 31. The front bar 120 and the rear bar 140 are horizontal, and the rear end of the front bar 120 overlaps the front end of the rear bar 140. The seat support bar 150 and the linkage bar 160 are opened in a crossed manner, so that the entire folding cart 100 is in a fully unfolded state.

When automatic folding is needed, only the electric push rod 11 needs to be started, the output end of the electric push rod 11 extends out, the first connecting arm 13 drives the center shaft 12 to rotate, the center shaft 12 drives the second connecting arm 14 to swing, the second connecting arm 14 drives the shaft pin 2 to move upwards, the shaft pin 2 pushes the driving part 3 to swing upwards around the second pivot shaft b through the clamping groove 31, at this time, due to the action of the third elongated hole 41, the fourth pivot shaft d slides to the front end at the rear end of the third elongated hole 41, and at this time, the pushing part 4 cannot move; meanwhile, as the driving element 3 swings, the second pin 35 thereon pushes the first abutting portion 81 on the first locking hook 8, so that the first locking hook 8 is disengaged from the locking shaft 141; when the first locking hook 8 is completely disengaged from the locking shaft 141, the fourth pivot shaft d slides to the front end of the third elongated hole 41; at this time, the driving member 3 pushes the pushing member 4, the pushing member 4 pushes the front handlebar 120, so that the rear end of the front handlebar 120 swings upward, the front handlebar 120 synchronously drives the front end of the rear handlebar 140 to swing upward, the front wheel bracket 110 and the rear wheel bracket 130 are drawn together, and the linkage rod 160 drives the seat supporting rod 150 and the swing rod 180 to fold, so that the seat 170 and the seat armrest 190 are folded together synchronously. When completely folded, the electric push rod 11 stops, and the second locking hook 9 is close to the locking shaft 141 and is locked to the locking shaft 141, so as to lock the entire folding cart 100 in the folded state.

When the automatic unfolding is needed, only the electric push rod 11 needs to be started, the output end of the electric push rod 11 is contracted, the first connecting arm 13 drives the middle shaft 12 to rotate reversely, the middle shaft 12 drives the second connecting arm 14 to swing reversely, the second connecting arm 14 drives the shaft pin 2 to move downwards, the shaft pin 2 pushes the driving piece 3 to swing downwards around the second pivot shaft b through the clamping groove 31, at this time, due to the action of the third elongated hole 41, the fourth pivot shaft d slides to the rear end at the front end of the third elongated hole 41, and at this time, the pushing piece 4 cannot move; meanwhile, as the driving element 3 swings, the third pin 36 on the driving element pushes the second abutting portion 91 on the second locking hook 9, so that the second locking hook 9 is disengaged from the locking shaft 141; when the second locking hook 9 is completely disengaged from the locking shaft 141, the fourth pivot shaft d slides to the rear end of the third elongated hole 41; at this time, the driving member 3 pulls the pushing member 4, and the pushing member 4 pulls the front rod 120, so that the rear end of the front rod 120 swings downward, and the entire foldable vehicle 100 is completely unfolded through the linkage of the components. When completely folded, the electric push rod 11 stops, and the first locking hook 8 is close to the locking shaft 141 and is buckled to the locking shaft 141, so as to lock the entire folding cart 100 in the unfolded state.

When manual folding is needed, only the operating rod 52 needs to be manually operated, the operating rod 52 drives the operating element 51 to rotate around the fourth pivot shaft d, at this time, the first pin 51a abuts against the hook 34 of the driving element 3, and then the driving element 3 slides, the driving element 3 slides to slide the second pivot shaft b to the front end position from the rear end of the first elongated hole 32, so that the fourth pivot shaft d slides to the front end position from the rear end of the second elongated hole 33, and at this time, the shaft pin 2 is disengaged from the slot 31; at the same time, the second pin 35 pushes the first abutting portion 81 of the first locking hook 8, so that the first locking hook 8 is disengaged from the locking shaft 141. At this time, the entire folding cart 100 can be folded by operating the operating rod 52 or the front cart rod 120, and the folding principle of the folding cart 100 is the same as that of the automatic folding, and will not be described in detail. After being completely folded, the second locking hook 9 is locked to the locking shaft 141, thereby locking the foldable vehicle 100 in the folded state. When the operating lever 52 is released, the driving member 3 returns to the original position under the restoring force of the first elastic element 6, and the shaft pin 2 is engaged with the engaging groove 31 again.

When the foldable vehicle 100 needs to be unfolded manually, the operating lever 52 is only needed to be manually operated again, the operating lever 52 drives the driving element 3 to slide, so that the clamping groove 31 is separated from the shaft pin 2, meanwhile, the second locking hook 9 is separated from the locking shaft 141 through the third pin 36, the whole foldable vehicle 100 can be unfolded by operating the operating lever 52 or the front vehicle lever 120, the principle of the unfolded foldable vehicle 100 is the same as that of the automatically unfolded vehicle, and detailed description is omitted. After the foldable vehicle is completely unfolded, the first locking hook 8 is locked to the locking shaft 141, and the foldable vehicle 100 is locked in the unfolded state. When the operating lever 52 is released, the driving member 3 returns to the original position under the restoring force of the first elastic element 6, and the shaft pin 2 is engaged with the engaging groove 31 again.

In summary, the folding cart 100 of the present invention has the following folding and unfolding modes, i.e. 1, automatically unfolding and then automatically folding; 2. automatically unfolded and then manually folded; 3. manually unfolding and then manually folding; 4. manually unfolded and then automatically folded.

Compared with the prior art, the front end of the driving part 3 is pivoted to the front end of the rear frame, the front end of the pushing part 4 is pivoted to the rear end of the front frame rod 120, the rear end of the pushing part 4 is pivoted to the rear end of the driving part 3, so that the pushing part can respectively form a second pivot point, a third pivot point and a fourth pivot point, a quadrangle is formed by the first pivot point formed by the pivoting of the front frame rod 120 and the rear frame rod 140, the driving part 3 is provided with a clamping groove 31, the clamping groove 31 is set to be an open groove, the shaft pin 2 is clamped with the open groove, the first driving part 1 can be used for driving the driving part 3 to rotate through the shaft pin 2, the whole quadrangle is deformed, and finally the front frame rod 120 is rotated, so that the whole folding vehicle 100 is folded; and the driving part 3 is provided with a first elongated hole 32 and a second elongated hole 33, so that the driving part 3 can slide in the limited range of the first elongated hole 32 and the second elongated hole 33, and the open slot and the shaft pin 2 can be separated from each other, so that the driving part 3 can be separated from the drive of the first drive 1, and can be folded or unfolded by the hand of a user, thereby realizing a manual and automatic integrated operation mode and meeting the requirements of different users. In the whole automatic folding process, the folding cart 100 can be completely unfolded or folded only by actuating the first driver 1, and in the manual folding process, only the operating part 51 needs to be operated, so that the folding cart is very simple to use, and is greatly convenient for a user to operate.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims

1. The utility model provides a folding drive structure for on the folding car, the folding car includes preceding car pole and back car pole, the back end of preceding car pole with the anterior segment of back car pole is overlapped from top to bottom respectively, just the middle part of preceding car pole with the front end pivot of back car pole forms first pin joint axle, its characterized in that: the rear vehicle rod driving mechanism comprises a first driving part, a shaft pin, a driving part and a pushing part, wherein the driving part is pivoted with the front end of the rear vehicle rod to form a second pivoting shaft, a clamping groove is formed in the middle of the driving part, and the shaft pin is clamped in the clamping groove; the front end of the pushing piece is pivoted with the rear end of the front vehicle rod to form a third pivoting shaft, and the rear end of the pushing piece is pivoted with the rear end of the driving piece to form a fourth pivoting shaft; the clamping groove is an open groove, an opening of the open groove is formed in the direction from the fourth pivot shaft to the second pivot shaft, a first long hole and a second long hole are formed in the driving piece, the extending direction of the first long hole and the extending direction of the second long hole are the same as the extending direction of the opening, the second pivot shaft is arranged in the first long hole in a relatively sliding mode, and the fourth pivot shaft is arranged in the second long hole in a relatively sliding mode; a quadrangle is formed among the first pivoting shaft, the second pivoting shaft, the third pivoting shaft and the fourth pivoting shaft, the first driving device pushes the shaft pins, the shaft pins push the driving piece, and then the front vehicle rod and the rear vehicle rod are folded relatively through deformation of the quadrangle.

2. A fold actuation structure according to claim 1, wherein: the folding driving structure further comprises a second driver, and the second driver drives the driving piece to slide along the direction of the first elongated hole, so that the clamping groove and the shaft pin are separated from each other.

3. A folding drive arrangement as claimed in claim 2, wherein: the folding driving structure further comprises a first elastic element, and the first elastic element provides an elastic force for clamping the clamping groove and the shaft pin.

4. A folding drive arrangement as claimed in claim 3, wherein: the folding driving structure further comprises a connecting piece, one end of the connecting piece is coaxially pivoted with the second pivoting shaft, and the other end of the connecting piece is coaxially pivoted with the fourth pivoting shaft; one end of the first elastic element is connected with the connecting piece, and the other end of the first elastic element is connected with the driving piece.

5. A folding drive arrangement as claimed in claim 2, wherein: the second driver comprises an operating piece which is coaxially pivoted with the fourth pivoting shaft.

6. The folding drive structure of claim 5, wherein: the operating part is provided with a first pin, the rear end of the driving part is provided with a hook body which is in sliding and abutting contact with the first pin, the operating part is operated to enable the first pin to rotate around the fourth pivot shaft, and then the hook body is pushed to enable the driving part to slide, so that the open slot is separated from the pivot shaft, and the folding of the folding bicycle is realized.

7. A fold actuation structure according to claim 1, wherein: the rear end of the pushing piece is provided with a third elongated hole, and the fourth pivot shaft is slidably arranged in the third elongated hole.

8. A folding drive arrangement as claimed in claim 7, wherein: the folding driving structure further comprises a first locking hook, the middle of the first locking hook is pivoted to the rear end of the front vehicle rod, the inner side of the rear vehicle rod extends out of the locking shaft in a protruding mode, and the first locking hook is buckled on the locking shaft when the folding vehicle is unfolded.

9. A folding drive arrangement as claimed in claim 8, wherein: one side of the first locking hook extends out of the first abutting portion in a bending mode, a second pin is arranged on the driving piece, and the driving piece abuts against the first abutting portion through the second pin so as to drive the first locking hook to be separated from the locking shaft.

10. A folding drive arrangement as claimed in claim 9, wherein: and a second elastic element which enables the first locking hook to be buckled with the locking shaft is arranged between the upper end of the first locking hook and the front vehicle rod.

11. A folding drive arrangement as claimed in claim 8, wherein: the folding driving structure further comprises a second locking hook which is pivoted to the front vehicle rod and buckled to the locking shaft when folded.

12. A folding drive arrangement as claimed in claim 11, wherein: one side of the second locking hook extends out of the second abutting part in a bending mode, a third pin is arranged on the driving piece, and the driving piece drives the second locking hook to be separated from the locking shaft through the third pin.

13. A fold actuation structure as claimed in claim 12, wherein: and a third elastic element which enables the second locking hook to be buckled with the locking shaft is arranged between the upper end of the second locking hook and the front vehicle rod.

14. A fold actuation structure according to claim 1, wherein: the first drive comprises an electric push rod, a middle shaft, a first connecting arm and a second connecting arm, the middle shaft and the second pivot shaft are coaxially arranged, one end of the electric push rod is pivoted to the rear vehicle rod, the output end of the electric push rod is pivoted with one end of the first connecting arm, the other end of the first connecting arm is fixed with the middle shaft, one end of the second connecting arm is fixed with the shaft pin, and the other end of the second connecting arm is fixed with the middle shaft.

15. The utility model provides a folding bicycle which characterized in that: the folding driving structure comprises a front wheel support, a front wheel rod, a rear wheel support, a rear wheel rod and the folding driving structure as claimed in any one of claims 1 to 14, wherein the front end of the front wheel rod is pivoted with the front wheel support, the rear section of the front wheel rod and the front section of the rear wheel rod are respectively overlapped up and down, the middle part of the front wheel rod and the front end of the rear wheel rod are pivoted to form a first pivoting shaft, the rear end of the rear wheel rod is pivoted with the rear wheel support, and the folding driving structure is arranged between the front wheel rod and the rear wheel rod to drive the front wheel rod and the rear wheel rod to be unfolded or folded.

16. The folding cart of claim 15, wherein: the folding vehicle also comprises a seat supporting rod, a linkage rod, a seat and a swing rod; the lower end of the seat supporting rod is fixed with the rear wheel bracket, and the upper end of the seat supporting rod is pivoted with the front end of the seat; the linkage rod and the seat supporting rod are arranged in a crossed mode, the middle portions of the linkage rod and the seat supporting rod are mutually pivoted, the lower end of the linkage rod is pivoted with the rear end of the front vehicle rod, the upper end of the linkage rod is pivoted with one end of the swing rod, and the other end of the swing rod is pivoted with the rear end of the seat.

17. The folding cart of claim 16, wherein: the folding vehicle further comprises seat armrests, and the lower ends of the seat armrests are fixedly connected with the swing rods.

18. The folding cart of claim 15, wherein: the folding bicycle further comprises a pull rod, one end of the pull rod is pivoted with the front wheel bracket, and the other end of the pull rod is pivoted with the rear bicycle rod.