CN206885250U - Folding driving structure and folding bicycle with the structure - Google Patents

Abstract

The utility model discloses a folding car applicable to a folding drive structure, including a front car bar and a rear car bar, the rear section of the front car bar overlaps with the front section of the rear car bar respectively, and the middle part of the front car bar is pivoted with the front end of the rear car bar to form a first pivot axis, the folding drive structure includes a first drive, an axle pin, a driving member and a pushing member, the driving member is pivoted with the front end of the rear car bar to form a second pivot axis, the middle part of the driving member is provided with a slot, the axle pin is inserted into the slot; the front end of the pushing member is pivoted with the rear end of the front car bar to form a third pivot axis, and the rear end of the pushing member is pivoted with the rear end of the driving member to form a fourth pivot axis. The folding drive structure of the utility model has the advantages of fast and convenient folding. In addition, the utility model also discloses a folding car.

Description

Folding driving structure and folding bicycle with the structure

technical field

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

Background technique

With the improvement of people's living standards, the concept of individuality, fashion, health and environmental protection has begun to take root in the hearts of the people. Fashionable and environmentally friendly daily necessities and vehicles are sought after by more and more people. Electric vehicles have also changed from a simple transportation Tool development has become a symbol of a fashionable and healthy lifestyle, and it is also one of the ways to practice environmental protection. The foldable electric car, which saves storage space and is easy to carry, is small in size and light in weight after folding. It is easy to carry it up and down stairs, It is very convenient to go up and down the elevator, travel by bus and subway.

Existing folding electric vehicles are generally folded manually, but the existing folding methods usually operate and fold multiple mechanisms, the folding steps are cumbersome, the folding speed is slow, and it is inconvenient to use; For humans, manual folding needs to consume a lot of time and effort, therefore, to a certain extent, it brings inconvenience to these people with limited mobility.

Utility model content

The purpose of the utility model is to provide a fast and convenient folding driving structure.

The purpose of the utility model is to provide a fast and convenient folding car.

In order to achieve the above-mentioned purpose, the foldable bicycle to which the folding driving structure provided by the utility model is applicable includes a front pole and a rear pole, the rear section of the front pole overlaps up and down with the front section of the rear pole respectively, and The middle part of the front pole is pivotally connected with the front end of the rear pole to form a first pivot shaft, and the folding drive structure includes a first drive, a pivot pin, a driving member and a pushing member, and the driving member is connected to the The front end of the rear bar is pivotally connected to form a second pivot shaft, and the middle part of the driving member is provided with a draw-in groove, and the pivot pin is inserted into the draw-in groove; The rear end of the rod is pivotally connected to form a third pivot shaft, and the rear end of the pushing member is pivotally connected to the rear end of the driving member to form a fourth pivot shaft; the first pivot shaft, the second pivot shaft A quadrilateral is formed between the shaft, the third pivot shaft and the fourth pivot shaft, the first drive pushes the pivot pin, and the pivot pin pushes the driving member, and then the quadrilateral is deformed to realize the The front pole and the rear pole are relatively folded.

Compared with the prior art, the utility model pivotally connects the front end of the driving member to the front end of the rear frame, and the front end of the pushing member is pivotally connected to the rear end of the front bar, and the The rear end of the pushing member is pivotally connected to the rear end of the driving member, so that it forms the second, third and fourth pivot points respectively, and is connected with the pivot joints of the front rod and the rear rod. The first pivot joints formed by connecting each other form a quadrilateral, so that the first drive can be used to drive the driving member to rotate through the pivot pin, so as to deform the entire quadrilateral, and finally make the front bar rotate to realize the rotation of all The front pole and the rear pole are folded; in the whole process, only the first driving action is required to realize the complete unfolding or folding of the folding bike, which is very simple to use and greatly facilitates the user's operation.

Preferably, the card slot is an open slot, and the opening of the open slot is opened toward the direction from the fourth pivot shaft to the second pivot shaft, and the driving member is provided with a direction corresponding to the extension direction and the second pivot shaft. The first elongated hole and the second elongated hole with the openings in the same direction, the second pivot shaft is relatively slidably arranged in the first elongate hole, and the fourth pivot shaft is relatively slidably arranged in the second elongated hole. By setting the draw-in slot as an open slot, and setting the first elongated hole and the second elongated hole on the driving member, the driving member can be placed in the first elongated hole and the second elongated hole. Sliding within the limited range, and then make the opening groove and the shaft pin disengage from each other, so that the driving part can be separated from the driving of the first driving, and can be folded or opened manually to realize the integration of manual and automatic Operation mode to meet the needs of different users.

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

More specifically, the folding driving structure further includes a first elastic element, and the first elastic element provides an elastic force to engage the locking groove with the shaft pin. The first elastic element can keep the driving member connected to the first driving, so that the folding bike uses the first driving folding mode by default.

More specifically, the folding driving structure further includes a connecting piece, one end of the connecting piece is coaxially pivoted to the second pivot shaft, and the other end of the connecting piece is coaxially connected to the fourth pivot shaft. Axially pivoted; one end of the first elastic element is connected to the connecting piece, and the other end is connected to the driving piece. The connecting member can be conveniently provided with the first elastic element, so that the direction of the elastic force generated by the first elastic element is in the sliding direction of the driving member, so as to ensure that the driving member can be reset accurately.

More specifically, the second drive includes an operating member, the operating member is coaxially pivoted to the fourth pivot shaft, and the operating member can be used to quickly and conveniently operate the driving member, so that Folding can quickly switch from the first driving mode to the second driving mode.

More specifically, the operating member has a first pin, the rear end of the driving member is provided with a hook that slides against the first pin, and the operating member is operated to make the first pin Rotate around the fourth pivot shaft, and then push the hook body to make the driving member slide, so that the opening groove is separated from the pivot pin, so as to realize the folding of the folding bicycle.

Preferably, a third elongated hole is opened 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 also includes a first locking hook, the middle part of the first locking hook is pivotally connected to the rear end of the front pole, and the inner side of the rear pole protrudes from the locking shaft. The first locking hook is engaged with the locking shaft when the folding vehicle is unfolded. By using the first locking hook to lock the front pole and the rear pole, it can make the folding bicycle safer when unfolded.

Specifically, one side of the first locking hook bends to extend out of the first abutting portion, the driving member is provided with a second pin, and the driving member abuts against the first pin through the second pin. A contact with the top further drives the first locking hook to disengage from the locking shaft. By arranging the second pin and the first abutting portion, the driving member can firstly drive the first locking hook to disengage from the locking shaft before driving the folding bike to fold, so that the front pole and The unlocking of the rear pole can prevent the relative retraction of the front pole and the rear pole when the first locking hook is not detached from the locking shaft due to the effect of the third elongated hole. Fold to prevent jamming due to interference.

More specifically, a second elastic element for fastening the first locking hook to the locking shaft is provided between the upper end of the first locking hook and the front pole. The second elastic element can be used to automatically fasten the first locking hook to the locking shaft, preventing the first locking hook from accidentally disengaging from the locking shaft, thereby making the folding bicycle safer when unfolded.

Specifically, the folding driving structure also includes a second locking hook, the second locking hook is pivotally connected to the front pole, and the inner side of the rear pole protrudes from the locking shaft. When folded, the second The locking hook is engaged with the locking shaft. By using the second locking hook to lock the front pole and the rear pole, the folding bicycle can be more secure after being folded.

More specifically, one side of the second locking hook bends to extend out of the second abutting portion, the driving member is provided with a third pin, and the driving member drives the first pin through the third pin. Two locking hooks disengage from the locking shaft. By arranging the third pin and the second abutting portion, the driving member can firstly drive the second locking hook to disengage from the locking shaft before driving the folding bike to unfold, so that the front bar can be aligned with the locking shaft. Describe the unlocking of the rear lever.

More specifically, a third elastic element for fastening the second locking hook to the locking shaft is provided between the upper end of the second locking hook and the front pole. The second locking hook can be automatically buckled on the locking shaft by using the third elastic element, preventing the second locking hook from accidentally disengaging from the locking shaft, thereby making the folding bike safer .

Preferably, the first drive includes an electric push rod, a central shaft, a first connecting arm, and a second connecting arm, the central shaft is arranged coaxially with the second pivot shaft, and the electric push rod One end is pivotally connected to the rear bar, the output end of the electric push rod is pivotally connected to one end of the first connecting arm, the other end of the first connecting arm is fixed to the central shaft, and the second One end of the connecting arm is fixed to the pivot pin, and the other end of the second connecting arm is fixed to the central axis.

A folding bicycle, comprising a front wheel bracket, a front pole, a rear wheel bracket, a rear pole and the folding drive structure, the front end of the front pole is pivotally connected to the front wheel bracket, and the front end of the front pole The rear section overlaps up and down with the front section of the rear bar respectively, and the middle part of the front bar is pivotally connected with the front end of the rear bar to form a first pivot shaft, and the rear end of the rear bar is connected to the front end of the rear bar. The rear wheel support is pivotally connected, and the folding driving structure is arranged between the front pole and the rear pole to drive them to unfold or fold.

Preferably, the folding bike also includes a seat support rod, a linkage rod, a seat seat and a swing rod; the lower end of the seat support rod is fixed to the rear wheel bracket, and the upper end is pivotally connected to the front end of the seat seat The linkage rod and the seat support rod are arranged crosswise and the middle parts are pivotally connected to each other, the lower end of the linkage rod is pivotally connected to the rear end of the front vehicle rod, and the upper end is pivotally connected to one end of the swing rod, The other end of the swing link is pivotally connected to the rear end of the seat.

Specifically, the folding bike further includes a seat armrest, and the lower end of the seat armrest is fixedly connected to the swing rod.

Preferably, the folding bike further includes a pull rod, one end of which is pivotally connected to the front wheel bracket, and the other end is pivotally connected to the rear handle bar.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the folding bicycle of the present invention when it is unfolded.

Fig. 2 is a side view when the folding bicycle of the present invention is unfolded.

Fig. 3 is a bottom view structure diagram when the folding bicycle of the present invention is unfolded.

Fig. 4 is an enlarged view of part A in Fig. 3 .

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

Fig. 6 is an exploded schematic view of the folding driving structure of the folding bicycle of the present invention.

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

Fig. 8 is an enlarged view of part B in Fig. 3 .

Fig. 9 is a schematic diagram of the state of each component after the folding driving structure of the folding bicycle of the present invention is folded.

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

detailed description

In order to describe the technical content, structural features, and achieved effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

As shown in Fig. 1 and Fig. 2, the folding bicycle 100 of the present utility model comprises a front wheel support 110, a front pole 120, a rear wheel support 130, a rear pole 140, a seat support bar 150, a linkage bar 160, and a seat 170 , a swing rod 180, a seat armrest 190, a pull rod 200 and the folding drive structure 300; the front end of the front rod 120 is pivotally connected to the front wheel bracket 110, and the rear section of the front rod 120 is connected to the The front section of the rear bar 140 overlaps up and down respectively, and the middle part of the front bar 120 is pivotally connected with the front end of the rear bar 140 to form a first pivot axis a, and the rear end of the rear bar 140 is connected to The rear wheel bracket 130 is pivotally connected; the lower end of the seat support rod 150 is fixed to the rear wheel bracket 130, and the upper end is pivotally connected to the front end of the seat 170; the linkage rod 160 is connected to the seat support The rods 150 are arranged crosswise and the middle parts are pivotally connected to each other. The lower end of the linkage rod 160 is pivotally connected to the rear end of the front bar 120, and the upper end is pivotally connected to one end of the swing rod 180. The other end of the swing rod 180 is pivotally connected One end is pivotally connected to the rear end of the seat 170 ; the lower end of the armrest 190 is fixedly connected to 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 bar 140 ; the pull rod 200 is provided so that the front wheel bracket 110 can be folded in a translational manner when folded. The folding driving structure 300 is arranged between the front pole 120 and the rear pole 140 to drive the two to unfold or fold; in order to make the folding and unfolding stable, both sides of the folding cart 100 are provided with a The folding driving structure 300 .

1, 3 to 6, the folding drive structure 300 includes a first drive 1, a shaft pin 2, a drive 3, a pusher 4 and a second drive 5, the drive 3 and the drive The front end of the rear bar 140 is pivotally connected to form a second pivot shaft b, and the middle part of the driving member 3 is provided with a slot 31, and the shaft pin 2 is snapped into the slot 31; The front end is pivotally connected to the rear end of the front bar 120 to form a third pivot axis c, and the rear end of the push member 4 is pivotally connected to the rear end of the driving member 3 to form a fourth pivot axis d; A quadrilateral is formed between the first pivotal shaft a, the second pivotal shaft b, the third pivotal shaft c, and the fourth pivotal shaft d, the first drive 1 pushes the pivot pin 2, and the pivot pin 2 pushes the driving member 3, and then realizes the relative folding of the front bar 120 and the rear bar 140 through the deformation of the quadrilateral. Specifically, the first drive 1 includes an electric push rod 11, a central shaft 12, a first connecting arm 13, and a second connecting arm 14, the central shaft 12 is coaxially arranged with the second pivot shaft b, One end of the electric push rod 11 is pivotally connected to the rear bar 140, the output end of the electric push rod 11 is pivotally connected to one end of the first connecting arm 13, and the other end of the first connecting arm 13 Fixed with the central axis 12 , one end of the second connecting arm 14 is fixed with the pivot pin 2 , and the other end of the second connecting arm 14 is fixed with the central axis 12 .

Referring to Fig. 5, Fig. 6 and Fig. 7 again, the locking slot 31 is an open slot, and the opening of the open slot is opened toward the direction from the fourth pivot axis d to the second pivot axis b, and The driving member 3 is provided with a first elongated hole 32 and a second elongated hole 33 extending in the same direction as the opening, and the second pivot shaft b is relatively slidably arranged on the first elongated hole. shaped hole 32 , the fourth pivot shaft d is relatively slidably disposed in the second elongated hole 33 . By setting the draw-in slot 31 as an open slot, and setting the first elongated hole 32 and the second elongated hole 33 at the driver 3, the driver 3 can be opened in the first elongated hole 32. and the second elongated hole 33 to slide within the limit range, so that the opening groove and the shaft pin 2 can be disengaged from each other, so that the driving member 3 can be separated from the driving of the first driving 1. It can be folded or opened to realize the operation mode of manual and automatic integration to meet the needs of different users.

As shown in Figures 5 and 6, the folding drive structure 300 further includes a first elastic element 6 and a connecting piece 7, one end of the connecting piece 7 is coaxially pivoted to the second pivot shaft b, The other end of the connecting member 7 is coaxially pivoted to the fourth pivot shaft d; one end of the first elastic element 6 is connected to the connecting portion of the connecting member 7, and the other end is connected to the driving member 3, the first elastic element 6 is a tension spring. The straight line 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 connector 7 is provided for conveniently setting the first elastic element 6, so that the direction of the elastic force generated by the first elastic element 6 is always on the sliding direction of the driving member 3, so that the first elastic element 6. It can always provide an elastic force to make the card slot 31 engage with the shaft pin 2, ensure that the driving part 3 can be reset accurately, and make the folding bike 100 use the folding mode of the first driving 1 by default. .

As shown in Figures 5 and 6, the second drive 5 can drive the drive member 3 to slide along the direction of the first elongated hole 32, so that the locking groove 31 and the shaft pin 2 are separated from each other. . The second drive 5 includes an operating member 51, which is coaxially pivoted to the fourth pivot shaft d. The operating member 51 can be used to operate the driving member 3 quickly and conveniently. Therefore, the folding can be quickly switched from the first driving mode to the second driving mode. The operating member 51 has two first pins 51a, and the rear end of the driving member 3 is provided with two hooks 34 that slide against the first pins 51a. Operating the operating member 51 can make the The first pin 51a rotates around the fourth pivot axis d, and then pushes the hook body 34 to make the driving member 3 slide, so that the opening groove is separated from the shaft pin 2, and the Folding bike 100 folded. Due to the use of the two folding drive structures 300 in the utility model, for the convenience of operation, the two operating parts 51 can be connected through an operating rod 52, so that only one operating rod 52 can be operated to simultaneously operate the two operating parts 51. Operation piece 51 .

Referring to Figure 5, Figure 6 and Figure 7 again, the folding drive structure 300 also includes a first locking hook 8, when the first locking hook 8 is set, the rear end of the pushing member 4 needs to be opened There is a third elongated hole 41 , and the fourth pivot shaft d is slidably disposed in the third elongated hole 41 . The middle part of the first locking hook 8 is pivotally connected to the rear end of the front pole 120, and the inner side of the rear pole 140 protrudes from the locking shaft 141. When the folding bicycle 100 is unfolded, the first locking hook 8 is fastened to the locking shaft 141. By using the first locking hook 8 to lock the front pole 120 and the rear pole 140, the foldable bicycle 100 can be unfolded more safely. Specifically, one side of the first locking hook 8 bends and extends out of the first abutting portion 81, and the driving member 3 is provided with a second pin 35, and the driving member 3 can pass through the second pin The post 35 abuts against the first abutting portion 81 to drive the first locking hook 8 away from the locking shaft 141 . A second elastic element 82 is provided between the upper end of the first locking hook 8 and the front pole 120 so that the first locking hook 8 is fastened to the locking shaft 141 , and the second elastic element 82 for tension springs. By setting the second pin post 35 and the first abutting portion 81, the driving member 3 can first drive the first locking hook 8 to disengage from the locking shaft 141 before driving the folding cart 100 to fold. The unlocking of the front bar 120 and the rear bar 140 can also be performed on the first locking hook 8 due to the guiding and sliding effect of the third elongated hole 41 on the fourth pivot shaft d. When the locking shaft 141 is not disengaged, the front bar 120 and the rear bar 140 are prevented from being folded relative to each other, so as to prevent interference and jamming. The second elastic element 82 can be used to automatically snap the first locking hook 8 to the locking shaft 141, preventing the first locking hook 8 from accidentally disengaging from the locking shaft 141, so that the folding Car 100 is safer when deployed.

As shown in FIG. 8 , the folding driving structure 300 also includes a second locking hook 9 , the second locking hook 9 is pivotally connected to the front pole 120 , and the inner side of the rear pole 140 protrudes from the locking hook. The shaft 141 , when folded, the second locking hook 9 is fastened to the locking shaft 141 . By using the second locking hook 9 to lock the front pole 120 and the rear pole 140 , the folding bicycle 100 can be folded more safely. Specifically, one side of the second locking hook 9 bends to extend out of the second abutting portion 91, the driving member 3 is provided with a third pin 36, and the driving member 3 passes through the third pin 36 drives the second locking hook 9 to disengage from the locking shaft 141 . A third elastic element 92 is provided between the upper end of the second locking hook 9 and the front bar 120 to make the second locking hook 9 fasten to the locking shaft 141 . By setting the third pin 36 and the second abutting portion 91, the driving member 3 can first drive the second locking hook 9 to disengage from the locking shaft 141 before driving the folding cart 100 to unfold, so as to realize the The unlocking of the front handlebar 120 and the rear handlebar 140. The third elastic element 92 can be used to automatically snap the second locking hook 9 to the locking shaft 141, preventing the second locking hook 9 from accidentally disengaging from the locking shaft 141, so that the folding It is safer when the car 100 is folded.

Based on the above and in combination with Fig. 9 and Fig. 10, the working principle of the utility model folding bicycle 100 will be described in detail below, as follows:

In the unfolded state, the electric push rod 11 is in a contracted state. At this time, the first locking hook 8 is fastened on the locking shaft 141, and the second pivot shaft b is located on the first elongated At the rear end of the 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 pivot pin 2 is engaged in the engaging groove 31 . The front bar 120 and the rear bar 140 are horizontal, and the rear end of the front bar 120 partially overlaps the front end of the rear bar 140 . The seat support rod 150 and the linkage rod 160 are opened crosswise, so that the entire foldable bicycle 100 is fully unfolded.

When automatic folding is required, it is only necessary to start the electric push rod 11, and the output end of the electric push rod 11 is stretched out, and the central shaft 12 is driven to rotate through the first connecting arm 13, and the central shaft 12 Drive the second connecting arm 14 to swing, the second connecting arm 14 drives the shaft pin 2 to move upward, and the shaft pin 2 pushes the driving member 3 around the second pivot through the slot 31 The shaft b swings upwards. At this time, due to the effect 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. At this time, the top The push piece 4 will not move; meanwhile, due to the swing of the drive piece 3, the second pin 35 on it pushes the first abutting portion 81 on the first locking hook 8, so that the first locking hook 8 The hook 8 is separated from the locking shaft 141; when the first locking hook 8 is completely separated 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, and the pushing member 4 pushes the front bar 120, so that the rear end of the front bar 120 swings upward, and the front bar 120 then Synchronously drives the front end of the rear wheel bar 140 to swing upwards, the front wheel bracket 110 and the rear wheel bracket 130 move closer to each other, and the linkage rod 160 drives the seat support rod 150 and the swing rod 180 to fold , and then the seat 170 and the armrest 190 are folded together synchronously. When fully folded, the electric push rod 11 stops, and the second locking hook 9 approaches the locking shaft 141 and engages with the locking shaft 141 , thereby locking the entire folding bike 100 in the folded state.

When automatic deployment is required, it is only necessary to start the electric push rod 11, the output end of the electric push rod 11 contracts, and the first connecting arm 13 drives the central shaft 12 to rotate in reverse, and the central shaft 12 Drive the second connecting arm 14 to swing in the opposite direction, the second connecting arm 14 drives the shaft pin 2 to move downward, and the shaft pin 2 pushes the driving member 3 through the slot 31 to surround the The second pivot shaft b swings downwards. At this time, due to the effect 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. At the same time, due to the swing of the driving member 3, the third pin 36 on it pushes the second abutting portion 91 on the second locking hook 9, so that all 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 of the third elongated hole 41 end; at this time, the driving member 3 pulls the push member 4, and the push member 4 pulls the front bar 120, thereby causing the rear end of the front bar 120 to swing downward, thereby passing through each The linkage of the parts makes the entire folding bicycle 100 fully unfolded. When fully folded, the electric push rod 11 stops, and the first locking hook 8 approaches the locking shaft 141 and engages with the locking shaft 141 , thereby locking the entire folding bicycle 100 in the unfolded state.

When it needs to be folded manually, it is only necessary to manually operate the operating lever 52, so that the operating lever 52 drives the operating member 51 to rotate around the fourth pivot axis d, and at this time, the first pin 51a abuts The hook body 34 of the driving member 3 on the top, and then the driving member 3 slides, and the sliding of the driving member 3 makes the second pivot shaft b slide from the rear end to the front end of the first elongated hole 32 Position, so that the fourth pivot shaft d slides from the rear end of the second elongated hole 33 to the front position, at this time, the shaft pin 2 is disengaged from the engaging groove 31; at the same time, the The second pin 35 pushes the first abutting portion 81 of the first locking hook 8 to disengage the first locking hook 8 from the locking shaft 141 . At this time, the entire folding bike 100 can be folded by operating the operating lever 52 or the front pole 120. The folding principle of the folding bike 100 is the same as that of the aforementioned automatic folding, and will not be described in detail again. describe. After being fully folded, the second locking hook 9 is locked to the locking shaft 141, thereby locking the folding bicycle 100 in the folded state. When the operating lever 52 is released, the driving member 3 returns to its position under the restoring force of the first elastic element 6 , and the shaft pin 2 engages with the engaging groove 31 again.

When it needs to be manually deployed, it is only necessary to manually operate the operating lever 52 again, and the operating lever 52 drives the driving member 3 to slide, thereby disengaging the locking groove 31 from the shaft pin 2 and passing through the first The three pins 36 make the second locking hook 9 disengage from the locking shaft 141. At this time, the entire folding bicycle 100 can be unfolded by operating the operating lever 52 or the front pole 120, and the folding bicycle 100 The principle of unfolding is the same as that of automatic unfolding described above, and will not be described in detail. After being fully unfolded, the first locking hook 8 is locked on the locking shaft 141 , and then the folding bicycle 100 is locked in the unfolded state. When the operating lever 52 is released, the driving member 3 returns to its position under the restoring force of the first elastic element 6 , and the shaft pin 2 engages with the engaging groove 31 again.

To sum up, the folding bike 100 of the present invention has the following folding and unfolding methods: 1. Automatically unfold, then automatically fold; 2. Automatically unfold, then manually fold; 3. Manually unfold, then manually fold; 4. .It can be unfolded manually and then folded automatically.

Compared with the prior art, the utility model pivotally connects the front end of the driving member 3 to the front end of the rear frame, and the front end of the pushing member 4 is pivotally connected to the rear end of the front bar 120 , and the rear end of the pushing member 4 is pivotally connected to the rear end of the driving member 3, so that they respectively form the second, third and fourth pivot points, and are connected with the front bar 120 and The first pivot point formed by the pivot connection of the rear bar 140 forms a quadrilateral, and a draw-in groove 31 is set on the driving member 3, and the draw-in groove 31 is set as an open groove, so that the shaft pin 2 and The opening grooves are engaged, so that the first drive 1 can be used to drive the drive member 3 to rotate through the pivot pin 2, thereby deforming the entire quadrilateral, and finally rotating the front bar 120 to realize the rotation of the entire quadrilateral. The entire folding cart 100 is folded; and a first elongated hole 32 and a second elongated hole 33 are set in the driving member 3, so that the driving member 3 can be opened in the first elongated hole 32 and the second elongated hole 33. Sliding within the limited range of the elongated hole 33, so that the opening groove and the shaft pin 2 can be disengaged from each other, so that the driving member 3 can be separated from the driving of the first driving 1, and can be folded or folded by manual operation. Open to realize the operation mode of manual and automatic integration to meet the needs of different users. The above-mentioned entire automatic folding process only needs to activate the first drive 1 to realize the complete unfolding or folding of the folding bike 100, while the manual folding process only needs to operate the operating member 51, which is very simple to use , which greatly facilitates the user's operation.

What is disclosed above is only a preferred example of the utility model, and of course the scope of rights of the utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model .

Claims (19)

1. one kind folds driving structure, for folded bicycle, the folded bicycle includes front truck bar and rear car bar, the front truck bar The leading portion difference upper-lower overlapping of back segment and the rear car bar, and the middle part of the front truck bar and the front end of the rear car bar are pivotally connected Form the first drive-connecting shaft, it is characterised in that：Including the first driving, pivot pin, actuator and yoke frame, the actuator with it is described after The front end of car bar is pivotally connected to form the second drive-connecting shaft, and the middle part of the actuator is provided with neck, and the pivot pin snaps into the neck； The front end of the yoke frame and the rear end of the front truck bar are pivotally connected to form the 3rd drive-connecting shaft, the rear end of the yoke frame and the drive The rear end of moving part is pivotally connected to form the 4th drive-connecting shaft；First drive-connecting shaft, the second drive-connecting shaft, the 3rd drive-connecting shaft and the 4th drive-connecting shaft Between form quadrangle, first driving promotes the pivot pin, and the pivot pin pushing tow moves the actuator, and then by described The deformation of quadrangle and realize the front truck bar and the rear car bar with respect to folding.

2. driving structure is folded as claimed in claim 1, it is characterised in that：The neck is open slot, the open slot Opening opened up towards the direction of the 4th drive-connecting shaft to second drive-connecting shaft, and offered on the actuator bearing of trend and The opening the first elongated hole and the second elongated hole in the same direction, second drive-connecting shaft are in be slidingly arranged at described first relatively Elongated hole, the 4th drive-connecting shaft are in be slidingly arranged at second elongated hole relatively.

3. driving structure is folded as claimed in claim 2, it is characterised in that：The folding driving structure also includes second and driven Dynamic, second driving drives direction of the actuator along first elongated hole to slide, and makes the neck and the pivot pin It is mutually disengaged.

4. driving structure is folded as claimed in claim 3, it is characterised in that：The folding driving structure also includes the first elasticity Element, first flexible member, which provides one, makes the elastic force that the neck engages with the pivot pin.

5. driving structure is folded as claimed in claim 4, it is characterised in that：The folding driving structure also includes connector, One end of the connector is coaxially pivotally connected with second drive-connecting shaft, the other end of the connector and the 4th drive-connecting shaft Coaxially it is pivotally connected；One end of first flexible member is connected with the connector, and the other end is connected with the actuator.

6. driving structure is folded as claimed in claim 3, it is characterised in that：Second driving includes operating parts, the behaviour Workpiece is coaxially pivotally connected with the 4th drive-connecting shaft.

7. driving structure is folded as claimed in claim 6, it is characterised in that：The operating parts has the first pin, the drive The rear end of moving part is provided with slides the coupler body supported with first pin, operates the operating parts, makes first pin around institute The rotation of the 4th drive-connecting shaft is stated, and then coupler body described in pushing tow slides the actuator, so that the open slot departs from the pivot pin, Realize to the folded bicycle folding.

8. driving structure is folded as claimed in claim 1, it is characterised in that：It is elongated that the rear end of the yoke frame offers the 3rd Hole, the 4th drive-connecting shaft are slidably located in the 3rd elongated hole.

9. driving structure is folded as claimed in claim 8, it is characterised in that：The folding driving structure also includes the first locking Hook, the rear end of the front truck bar is articulated in the middle part of first lock hook, the project inward of the rear car bar goes out lock shaft, institute First lock hook described in when stating folded bicycle expansion is fastened on the lock shaft.

10. driving structure is folded as claimed in claim 9, it is characterised in that：Bendingly prolong the side of first lock hook The first top is stretched out, the actuator is provided with the second pin, and the actuator supports described by second pin One top and then drive the first lock hook disengaging lock shaft.

11. driving structure is folded as claimed in claim 10, it is characterised in that：The upper end of first lock hook with it is described before The second flexible member for making first lock hook be fastened on the lock shaft is provided between car bar.

12. driving structure is folded as claimed in claim 8, it is characterised in that：The folding driving structure also includes the second lock Determine hook, second lock hook is articulated in the front truck bar, and the second lock hook described in during folding is fastened on the lock shaft.

13. driving structure is folded as claimed in claim 12, it is characterised in that：Bendingly prolong the side of second lock hook Stretch out the second top, the actuator is provided with the 3rd pin, and the actuator drives described the by the 3rd pin Two lock hooks depart from the lock shaft.

14. driving structure is folded as claimed in claim 13, it is characterised in that：The upper end of second lock hook with it is described before The 3rd flexible member for making second lock hook be fastened on the lock shaft is provided between car bar.

15. driving structure is folded as claimed in claim 1, it is characterised in that：First driving includes electric pushrod, axis And first linking arm and the second linking arm, the axis be coaxially disposed with second drive-connecting shaft, the one of the electric pushrod End is articulated in the rear car bar, and the output end of the electric pushrod and one end of first linking arm are pivotally connected, and described first connects The other end and the axis for connecing arm are fixed, and one end and the pivot pin of second linking arm are fixed, second linking arm The other end fixed with the axis.

A kind of 16. folded bicycle, it is characterised in that：Including front-wheel support, front truck bar, rear wheel support, rear car bar and claim 1 to Folding driving structure described in 15 any one, front end and the front-wheel support of the front truck bar are pivotally connected, after the front truck bar The leading portion of section and the rear car bar distinguishes upper-lower overlapping, and the middle part of the front truck bar and the front end pivot joint shape of the rear car bar Into the first drive-connecting shaft, rear end and the rear wheel support of the rear car bar are pivotally connected, and the folding driving structure sets the front truck With both expansion of driving or folding between bar and rear car bar.

17. folded bicycle as claimed in claim 16, it is characterised in that：The folded bicycle also include seat support bar, gangbar, Seat support and swing rod；The lower end of the seat support bar is fixed with the rear wheel support, and upper end and the front end of the seat support are pivotally connected；Institute State gangbar to be mutually pivotally connected in arranged in a crossed manner and middle part with the seat support bar, the lower end of the gangbar and the front truck bar Rear end pivot joint, one end of upper end and the swing rod is pivotally connected, and the rear end of the other end of the swing rod and the seat support is pivotally connected.

18. folded bicycle as claimed in claim 17, it is characterised in that：The folded bicycle also includes armrest, the seat The lower end of handrail is fixedly connected with the swing rod.

19. folded bicycle as claimed in claim 16, it is characterised in that：The folded bicycle also includes pull bar, and the one of the pull bar End is pivotally connected with the front-wheel support, and the other end is pivotally connected with the rear car bar.