WO2018176709A1 - Folding driving structure and foldable vehicle having same - Google Patents

Abstract

Provided are a folding driving structure and a foldable vehicle having the same. The foldable vehicle comprises a front rod and a rear rod. A rear section of the front rod and a front section of the rear rod are overlapped in a vertical direction. A middle portion of the front rod is pivotally connected with a front end of the rear rod to form a first pivoting shaft. The folding driving structure comprises a first drive, a shaft pin, a driving member and a pushing member. The driving member is pivotally connected with the front end of the rear rod to form a second pivoting shaft. An engagement recess is arranged at a middle portion of the driving member. The shaft pin engages at the engagement recess. A front end of the pushing member is pivotally connected with a rear end of the front rod to form a third pivoting shaft. A rear end of the pushing member is pivotally connected with a rear end of the driving member to form a fourth pivoting shaft. The foldable vehicle and the folding driving structure thereof enable a quick and convenient folding operation.

Description

Folding drive structure and folding car having the same Technical field

The present application relates to a folding cart, and more particularly to a folding drive structure.

Background technique

With the improvement of people's living standards, the concept of personality, fashion, health and environmental protection has begun to penetrate the hearts of the people. Fashionable and environmentally-friendly daily necessities and transportation vehicles are being sought after by more and more people. Electric vehicles are also from a simple step. The tool has developed into a symbol of fashion and healthy lifestyle, and it is also one of the environmentally friendly ways to save energy. The foldable electric vehicle that saves storage space and is easy to carry is small and light in weight, and it is carried up and down. It is very convenient to go up and down the elevator, take the bus and the subway.

The existing folding electric vehicles are generally manually folded, but the existing folding method is usually to operate and fold a plurality of mechanisms, the folding step is cumbersome, the folding speed is slow, and the use is inconvenient; and, for the inconvenient movement For people, manual folding takes a lot of time and effort, so it is inconvenient for those who are inconvenient to some extent.

Application content

The purpose of the present application is to provide a folding drive structure that is fast and convenient to fold.

The purpose of the present application is to provide a folding cart that is fast and convenient to fold.

In order to achieve the above object, the folding vehicle to which the folding drive structure provided by the present application is applied includes a front and rear axles, and a rear section of the front axle overlaps with a front section of the rear axle, respectively, and The middle portion of the front axle is pivotally connected with the front end of the rear axle to form a first pivoting shaft, and the folding driving structure comprises a first driving, a shaft pin, a driving member and a pushing member, and the driving member and the driving member The front end of the rear axle is pivotally connected to form a second pivoting shaft, the middle of the driving member is provided with a card slot, the axle pin is engaged in the card slot; the front end of the pushing member and the front axle The rear end pivotally forms a third pivoting shaft, and the rear end of the pushing member is pivotally connected with the rear end of the driving member to form a fourth pivoting shaft; the first pivoting shaft and the second pivoting shaft Third Forming a quadrilateral between the pivot shaft and the fourth pivot shaft, the first driving pushes the axle pin, the axle pin pushes the driving member, and the front axle is realized by deformation of the quadrilateral And the rear axle is relatively folded.

Compared with the prior art, the present application 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 pole, and The rear end of the pushing member is pivotally connected to the rear end of the driving member so as to form second, third, and fourth pivoting points, respectively, and is pivotally connected to the front and rear axles Forming a first pivot joint to form a quadrilateral so that the first drive can be utilized to drive the drive member to rotate by the axle pin, thereby deforming the entire quadrilateral, and finally rotating the front axle to achieve the The front axle and the rear axle are folded; the whole process only needs to make the first driving action, and the folding vehicle can be fully deployed or folded, which is very simple to use and greatly facilitates the user's operation.

Preferably, the card slot is an open slot, and an opening of the open slot opens toward the fourth pivot axis to the second pivot axis, and the driving member is provided with an extending direction a first elongated hole and a second elongated hole in the same direction, wherein the second pivoting shaft is slidably disposed on the first elongated hole, and the fourth pivoting shaft is relatively slidably disposed And the second elongated hole. The driving member can be disposed in the first elongated hole and the second elongated hole by setting the card slot as an open slot and providing the first elongated hole and the second elongated hole in the driving member. Sliding within the restricted range, thereby disengaging the open slot from the pivot pin, so that the driving member can be disengaged from the driving of the first driving, and can be folded or opened by a human hand to realize manual and automatic integration. Operation mode to meet the needs of different users.

Specifically, the folding drive structure further includes a second drive that drives the driving member to slide in a direction of the first elongated hole to disengage the card slot from the shaft pin.

More specifically, the folding drive structure further includes a first elastic member that provides an elastic force that engages the card slot with the axle pin. The first elastic element can keep the driving member connected to the first driving, thereby enabling the folding vehicle to use the folding manner of the first driving by default.

More specifically, the folding drive structure further includes a connecting member, one end of the connecting member is pivotally coaxially connected to the second pivoting shaft, and the other end of the connecting member is the same as the fourth pivoting shaft The shaft is pivotally connected; one end of the first elastic member is connected to the connecting member, and the other end is connected to the driving member. The connecting member may conveniently arrange the first elastic member such that the first elastic member generates an elastic force direction in a sliding direction of the driving member to ensure accurate resetting of the driving member.

More specifically, the second drive includes an operating member, the operating member is coaxial with the fourth pivot shaft The grounding member can use the operating member to quickly and conveniently operate the driving member, so that the folding can be quickly switched 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 body that slides against the first pin, and the operating member is operated to make the first pin Rotating around the fourth pivoting shaft, and pushing the hook body to slide the driving member to disengage the opening slot from the axle pin, thereby achieving folding of the folding vehicle.

Preferably, the rear end of the pushing member is provided with a third elongated hole, and the fourth pivoting shaft is slidably disposed in the third elongated hole.

Specifically, the folding drive structure further includes a first locking hook, a middle portion of the first locking hook is pivotally connected to a rear end of the front axle, and an inner side of the rear axle protrudes from a locking shaft, The first locking hook is fastened to the locking shaft when the folding cart is deployed. By locking the front and rear levers with the first locking hook, the folding cart can be made safer when deployed.

Specifically, one side of the first locking hook is bent to extend out of the first abutting top, the driving member is provided with a second pin, and the driving member is abutted by the second pin. Abutting the top further drives the first locking hook away from the locking shaft. By providing the second pin and the first abutting top, the driving member can first drive the first locking hook away from the locking shaft before driving the folding cart to achieve the front axle and The unlocking of the rear lever, and at the same time, due to the action of the third elongated hole, the front axle and the rear axle may be prevented from being opposite when the first locking hook is not disengaged from the locking axle Fold to prevent interference and jam.

More specifically, a second elastic member that engages the first locking hook with the locking shaft is disposed between the upper end of the first locking hook and the front pole. The first locking hook can be automatically snapped onto the locking shaft by the second resilient member to prevent the first locking hook from accidentally disengaging from the locking shaft, thereby making the folding cart more secure when deployed.

Specifically, the folding driving structure further includes a second locking hook, the second locking hook is pivotally connected to the front pole, the inner side of the rear pole protrudes from the locking shaft, and the second is folded The locking hook is fastened to the locking shaft. By locking the front and rear levers with the second locking hook, the folding cart can be made safer after being folded.

More specifically, one side of the second locking hook is bent to extend out of the second abutting top, the driving member is provided with a third pin, and the driving member drives the first through the third pin The second locking hook is disengaged from the locking shaft. By providing the third pin and the second abutting top, the driving member can be driven Before the folding cart is deployed, the second locking hook is first driven to disengage from the locking shaft to unlock the front and rear axles.

More specifically, a third elastic member that engages the second locking hook with the locking shaft is disposed between the upper end of the second locking hook and the front pole. The second locking element can be automatically engaged with the locking shaft by the third elastic element, preventing the second locking hook from accidentally disengaging from the locking shaft, thereby making the folding car more secure when folded .

Preferably, the first driving includes an electric push rod, a middle shaft, and a first connecting arm and a second connecting arm, wherein the central shaft is coaxially disposed with the second pivoting shaft, and the electric push rod is One end is pivotally connected to the rear lever, an output end of the electric push rod is pivotally connected to one end of the first connecting arm, and the other end of the first connecting arm is fixed to the central shaft, the second One end of the connecting arm is fixed to the shaft pin, and the other end of the second connecting arm is fixed to the center shaft.

A folding vehicle includes a front wheel bracket, a front axle, a rear wheel bracket, a rear axle and the folding drive structure, and a front end of the front axle is pivotally connected to the front wheel bracket, and the front axle is The rear section overlaps the front section of the rear axle respectively, and the middle section of the front axle is pivotally connected with the front end of the rear axle to form a first pivoting shaft, and the rear end of the rear axle is The rear wheel bracket is pivotally connected, and the folding driving structure is disposed between the front and rear axles to drive both to expand or collapse.

Preferably, the folding bicycle further includes a seat support rod, a linkage rod, a seat and a swing rod; a lower end of the seat support rod is fixed to the rear wheel bracket, and an upper end is pivotally connected to a front end of the seat The linkage rod is disposed at an intersection with the seat support rod and is pivotally connected to the middle portion. The lower end of the linkage rod is pivotally connected to the rear end of the front pole, and the upper end is pivotally connected to one end of the swing rod. The other end of the swing lever is pivotally connected to the rear end of the seat.

Specifically, the folding bicycle further includes a seat armrest, and a lower end of the seat armrest is fixedly coupled to the swing bar.

Preferably, the folding cart further includes a pull rod, one end of the pull rod is pivotally connected to the front wheel bracket, and the other end is pivotally connected to the rear pole.

DRAWINGS

1 is a schematic structural view of a folding cart of the present application when it is deployed.

Figure 2 is a side elevational view of the folding cart of the present application when deployed.

Fig. 3 is a bottom plan view showing the folding vehicle of the present application when it is unfolded.

Figure 4 is an enlarged view of a portion A of Figure 3.

Fig. 5 is a schematic structural view of a folding drive structure of the folding cart of the present application.

Figure 6 is an exploded perspective view of the folding drive structure of the folding cart of the present application.

7 is a schematic structural view of the driving member in the folding drive structure of the folding cart of the present application.

Figure 8 is an enlarged view of a portion B of Figure 3.

Fig. 9 is a schematic view showing the state of each component after folding of the folding drive structure of the folding cart of the present application.

Fig. 10 is a view showing a state in which the folding bicycle of the present application is folded.

detailed description

The details of the technical contents, structural features, and effects achieved by the present application will be described in detail below with reference to the embodiments.

As shown in FIG. 1 and FIG. 2 , the folding bicycle 100 of the present application includes a front wheel bracket 110 , a front axle 120 , a rear wheel bracket 130 , a rear axle 140 , a seat support lever 150 , a linkage lever 160 , and a seat 170 . a swinging lever 180, a seat armrest 190, a drawbar 200, and the folding drive structure 300; a front end of the front axle 120 is pivotally connected to the front wheel bracket 110, and a rear section of the front axle 120 and the rear The front section of the front pole 120 is vertically and vertically overlapped, and the middle of the front pole 120 is pivotally connected with the front end of the rear axle 140 to form a first pivot axis a, and the rear end of the rear axle 140 is 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 and the seat support rod The lower end of the linkage rod 160 is pivotally connected to the rear end of the front rod 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 disposed. A rear end of the seat 170 is pivotally connected; a lower end of the seat arm 190 is fixedly coupled to the swing lever 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 axle 140. The pull rod 200 is disposed to fold the front wheel bracket 110 downwardly when folded. The folding drive structure 300 is disposed between the front and rear axles 120 and 140 to drive the two to be unfolded or folded; in order to stabilize the folding and unfolding, one side of the folding bicycle 100 is provided with one The folding drive structure 300.

As shown in FIG. 1 , FIG. 3 to FIG. 6 , the folding drive structure 300 includes a first drive 1 , a shaft pin 2 , a driving member 3 , a pushing member 4 and a second driving 5 , and the driving member 3 and the The front end of the rear lever 140 is pivotally connected to form a second pivot shaft b, and the middle portion of the driving member 3 is provided with a card slot 31, and the shaft pin 2 is engaged with the card slot 31; The front end is pivotally connected to the rear end of the front pole 120 to form a third pivotal connection a shaft c, a rear end of the pushing member 4 is pivotally connected with a rear end of the driving member 3 to form a fourth pivoting axis d; the first pivoting axis a, the second pivoting axis b, and the third pivot A quadrangle is formed between the connecting shaft c and the fourth pivoting shaft d, and the first driving 1 pushes the shaft pin 2, and the shaft pin 2 pushes the driving member 3 to be pushed by the deformation of the quadrilateral. The front axle 120 and the rear axle 140 are relatively folded. Specifically, the first driving 1 includes an electric push rod 11 , a middle shaft 12 , a first connecting arm 13 and a second connecting arm 14 , and the central shaft 12 is disposed coaxially with the second pivoting shaft b. One end of the electric push rod 11 is pivotally connected to the rear lever 140, and an 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 is Fixed to the middle 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 , FIG. 6 and FIG. 7 , the card slot 31 is an open slot, and an opening of the open slot opens in a direction of 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 pivoting shaft b is slidably disposed on the first length. The hole 32 is disposed on the second elongated hole 33 in a relatively sliding manner. By setting the card slot 31 as an open slot and providing the first elongated hole 32 and the second elongated hole 33 in the driving member 3, the driving member 3 can be made in the first elongated hole 32. And sliding in the restricted range of the second elongated hole 33, so that the opening groove and the shaft pin 2 can be separated from each other, so that the driving member 3 can be disengaged from the driving of the first driving 1, and the manual operation is performed. It is folded or opened to realize the manual and automatic operation mode to meet the needs of different users.

As shown in FIG. 5 and FIG. 6 , the folding drive structure 300 further includes a first elastic member 6 and a connecting member 7 , and one end of the connecting member 7 is pivotally connected coaxially with the second pivoting shaft b. The other end of the connecting member 7 is pivotally connected coaxially with the fourth pivoting shaft d; one end of the first elastic member 6 is connected with the connecting portion of the connecting member 7, and the other end is connected with the driving member The connecting portions of 3 are connected, and the first elastic member 6 is a tension 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 for the convenience of disposing the first elastic member 6, so that the first elastic member 6 generates an elastic force direction always in the sliding direction of the driving member 3, so that the first elastic member 6 can always provide an elastic force for engaging the card slot 31 with the shaft pin 2, ensure that the driving member 3 can be accurately reset, and enable the folding cart 100 to use the folding manner of the first driving 1 by default. .

As shown in FIG. 5 and FIG. 6 , the second driving 5 can drive the driving member 3 to slide in the direction of the first elongated hole 32 to disengage the card slot 31 from the shaft pin 2 . . The second drive 5 The operating member 51 is pivotally connected coaxially with the fourth pivot shaft d. The operating member 51 can quickly and conveniently operate the driving member 3, so that the folding can be quickly and quickly Switch from the first drive mode to the second drive 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 pin 51a, and the operating member 51 is operated. The first pin 51a rotates around the fourth pivot axis d, and then pushes the hook body 34 to slide the driving member 3 to disengage the opening slot from the shaft pin 2, thereby achieving the The folding cart 100 is folded. Since the two folding driving structures 300 are used in the present application, for the convenience of operation, the two operating members 51 can be connected by an operating rod 52, so that only two operating operations can be operated by operating one operating lever 52. Item 51.

Referring to FIG. 5, FIG. 6, and FIG. 7, the folding drive structure 300 further includes a first locking hook 8. When the first locking hook 8 is disposed, the rear end of the pushing member 4 needs to be opened. There is a third elongated hole 41, and the fourth pivoting shaft d is slidably disposed in the third elongated hole 41. A middle portion of the first locking hook 8 is pivotally connected to a rear end of the front axle 120, and an inner side of the rear axle 140 protrudes from the locking shaft 141. When the folding bicycle 100 is deployed, the first locking hook 8 is fastened to the locking shaft 141. By locking the front and rear levers 120 and 140 with the first locking hooks 8, the folding vehicle 100 can be made safer when deployed. Specifically, one side of the first locking hook 8 is bent to extend out of the first abutting top 81, and the driving member 3 is provided with a second pin 35 through which the driving member 3 can pass. The post 35 abuts against the first abutting top 81 and thereby drives the first locking hook 8 away from the locking shaft 141. A second elastic member 82 is disposed between the upper end of the first locking hook 8 and the front lever 120 to engage the first locking hook 8 with the locking shaft 141, and the second elastic member 82 To stretch the spring. By providing the second pin 35 and the first abutting top 81, the driving member 3 can be driven to first disengage the first locking hook 8 from the locking shaft 141 before the folding of the folding cart 100. The front lever 120 is unlocked from the rear lever 140, and at the same time, due to the guiding sliding of the third elongated hole 41 to the fourth pivot shaft d, the first locking hook 8 is When the lock shaft 141 is not disengaged, the front lever 120 and the rear lever 140 are prevented from being folded together, and interference is prevented from being caught. The first locking hook 8 can be automatically engaged with the locking shaft 141 by the second elastic member 82, preventing the first locking hook 8 from accidentally disengaging from the locking shaft 141, thereby making the folding The car 100 is safer when deployed.

As shown in FIG. 8 , the folding drive structure 300 further includes a second locking hook 9 pivotally connected to the front lever 120 , and the inner side of the rear axle 140 protrudes and locks. Shaft 141, when folded The second locking hook 9 is fastened to the locking shaft 141. By locking the front and rear levers 120 and 140 with the second locking hooks 9, the folding cart 100 can be folded more securely. Specifically, one side of the second locking hook 9 is bent to extend out of the second abutting top 91, and the driving member 3 is provided with a third pin 36 through which the driving member 3 passes. 36 drives the second locking hook 9 out of the locking shaft 141. A third elastic member 92 for engaging 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 lever 120. By providing the third pin 36 and the second abutting portion 91, the driving member 3 can be driven to first disengage the second locking hook 9 from the locking shaft 141 before the driving of the folding cart 100 is started. The front lever 120 is unlocked from the rear lever 140. With the third elastic member 92, the second locking hook 9 can be automatically engaged with the locking shaft 141 to prevent the second locking hook 9 from accidentally disengaging from the locking shaft 141, thereby making the folding The car 100 is safer when it is folded.

Based on the above and in conjunction with FIG. 9 and FIG. 10, the working principle of the application of the folding cart 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 to the locking shaft 141, and the second pivot shaft b is located at the first elongated shape. The rear end of the hole 32 is located at the rear end of the second elongated hole 33 and the third elongated hole 41. The shaft pin 2 is engaged in the card slot 31. The front axle 120 and the rear axle 140 are in a horizontal state, and a rear end portion of the front axle 120 is overlapped with a front end of the rear axle 140. The seat support bar 150 is opened in an intersecting manner with the linkage bar 160 so that the entire folding cart 100 is fully deployed.

When the automatic folding is required, only the electric push rod 11 needs to be activated, the output end of the electric push rod 11 is extended, and the middle shaft 12 is driven to rotate by the first connecting arm 13, the central shaft 12 Driving 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 card slot 31 The connecting shaft b swings upward. At this time, due to the action of the third elongated hole 41, the fourth pivoting shaft d slides to the front end of the third elongated hole 41 at the front end. The pusher 4 does not move; at the same time, since the driving member 3 swings, the second pin 35 thereon pushes the first abutting top 81 on the first locking hook 8 to make the first locking The 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 pivoting shaft d is slid to the front end of the third elongated hole 41; The driving member 3 pushes the pushing member 4, and the pushing member 4 pushes the front lever 120 to swing the rear end of the front lever 120 upward, and the front lever 120 with Stepping up the front end of the rear lever 140 upward, The front wheel bracket 110 and the rear wheel bracket 130 are close to each other, and the linkage rod 160 drives the seat support rod 150 and the swing rod 180 to be folded, so that the seat 170 and the seat armrest 190 are synchronized. Fold together. When fully folded, the electric push rod 11 is stopped, and the second locking hook 9 is brought close to the lock shaft 141 and fastened to the lock shaft 141, thereby locking the entire folding cart 100 in a folded state.

When the automatic deployment is required, only the electric push rod 11 needs to be activated, the output end of the electric push rod 11 is contracted, and the central shaft 12 is driven to rotate in the reverse direction by the first connecting arm 13, the central shaft 12 Driving the second connecting arm 14 to swing back, 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 driving member 3 The second pivot shaft b swings downward. At this time, due to the action of the third elongated hole 41, the fourth pivot shaft d slides toward the rear end of the third elongated hole 41. When the pushing member 4 does not move; at the same time, since the driving member 3 swings, the third pin 36 thereon pushes the second abutting portion 91 on the second locking hook 9 to make the The second locking hook 9 is disengaged from the locking shaft 141; after the second locking hook 9 is completely disengaged from the locking shaft 141, the fourth pivoting shaft d is slid to the rear 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 lever 120, thereby causing the rear end of the front lever 120 to swing downward, thereby passing The linkage of the various components causes the entire folding cart 100 to fully deploy. When fully folded, the electric push rod 11 is stopped, and the first locking hook 8 is brought close to the lock shaft 141 and fastened to the lock shaft 141, thereby locking the entire folding cart 100 in the unfolded state.

When the manual folding is required, the operating lever 52 is only required to be manually operated, and the operating lever 52 is caused to rotate the operating member 51 around the fourth pivoting axis d. At this time, the first pin 51a is abutted. The top drive member 3 hook body 34, thereby sliding the drive member 3, the drive member 3 sliding to slide the second pivot shaft b from the rear end of the first elongated hole 32 to the front end Positioning the fourth pivot shaft d from the rear end of the second elongated hole 33 to the front end position, at which time the shaft pin 2 is disengaged from the card slot 31; at the same time, The second pin 35 pushes the first abutting top 81 of the first locking hook 8 to disengage the first locking hook 8 from the locking shaft 141. At this time, the operation lever 52 or the front lever 120 can be operated to fold the entire folding bicycle 100, and the folding vehicle 100 is folded and the folding principle is the same when the automatic folding is performed, and the details are not detailed. description. After being completely folded, the second locking hook 9 is locked to the locking shaft 141, thereby locking the folding cart 100 in a folded state. When the operating lever 52 is released, the driving member 3 returns to the position under the restoring force of the first elastic member 6, and the shaft pin 2 is engaged with the card slot 31 again.

When manual deployment is required, it is only necessary to manually operate the operating lever 52 again, the operating lever 52 is driven The driving member 3 is slid, thereby disengaging the card slot 31 from the shaft pin 2, and the second locking hook 9 is disengaged from the locking shaft 141 by the third pin 36. The operating lever 52 or the front lever 120 can unfold the entire folding cart 100. The folding vehicle 100 is deployed in the same manner as the aforementioned automatic deployment, and will not be described in detail. After being fully deployed, the first locking hook 8 is locked to the locking shaft 141, thereby locking the folding cart 100 in the state of the seventh. When the operating lever 52 is released, the driving member 3 returns to the position under the restoring force of the first elastic member 6, and the shaft pin 2 is engaged with the card slot 31 again.

In summary, the folding bicycle 100 of the present application has the following folding and unfolding modes: 1. Automatically unfolding, and then automatically folding; 2. Automatically unfolding, and then manually folding; 3. Manually unfolding, and then manually folding; 4. Expand manually and then automatically fold.

Compared with the prior art, the front end of the driving member 3 is pivotally connected 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 pole 120. And the rear end of the pushing member 4 is pivotally connected to the rear end of the driving member 3, so that the second, third, and fourth pivoting points are respectively formed, and the front pole 120 is The first pivoting point formed by pivoting the rear lever 140 is formed into a quadrangular shape, and a card slot 31 is disposed on the driving member 3 to set the card slot 31 as an open slot, so that the axle pin 2 and the The open slot is engaged, so that the first drive 1 can be used to drive the drive member 3 to rotate by the axle pin 2, thereby deforming the entire quadrilateral, and finally the front axle 120 is rotated to achieve the The entire folding cart 100 is folded; and the first elongated hole 32 and the second elongated hole 33 are disposed in the driving member 3, so that the driving member 3 can be in the first elongated hole 32 and the second long Sliding within a restricted range of the shaped hole 33, thereby enabling the open slot and the pivot pin 2 to be disengaged from each other, so that the driving member 3 can be removed The driving of the first driving 1 is performed by folding or opening with a human hand to realize a manual and automatic integrated operation mode to meet the needs of different users. In the above automatic folding process, the folding drive 100 can be fully deployed or folded only when the first driving 1 is operated, and the manual folding process only needs to operate the operating member 51, which is very simple to use. , greatly facilitate the user's operation.

The above is only the preferred embodiment of the present application, and the scope of the application is not limited thereto, and the equivalent changes made by the scope of the application of the present application are still within the scope of the present application.

Claims (19)

A folding drive structure for folding a vehicle, the folding vehicle comprising a front and a rear axle, a rear section of the front axle and a front section of the rear axle respectively overlapping upper and lower, and the folding The middle portion of the front axle is pivotally connected with the front end of the rear axle to form a first pivoting shaft, and is characterized by comprising: a first driving, a shaft pin, a driving member and a pushing member, the driving member and the rear vehicle The front end of the rod is pivotally formed to form a second pivoting shaft, the middle portion of the driving member is provided with a card slot, the axle pin is engaged in the card slot; the front end of the pushing member and the rear of the front pole The end pivotally forms a third pivoting shaft, and the rear end of the pushing member is pivotally connected with the rear end of the driving member to form a fourth pivoting shaft; the first pivoting shaft, the second pivoting shaft, and the first pivoting shaft Forming a quadrilateral between the three pivoting shafts and the fourth pivoting shaft, the first driving pushes the axle pin, the axle pin pushing the driving member, and the front vehicle is realized by the deformation of the quadrilateral The rod and the rear rod are relatively folded. The folding drive structure of claim 1 , wherein the card slot is an open slot, and an opening of the open slot opens toward the fourth pivot axis to the second pivot axis, and The driving member is provided with a first elongated hole and a second elongated hole extending in the same direction as the opening, and the second pivoting shaft is disposed in a relatively sliding manner on the first elongated hole. The fourth pivot shaft is disposed to slide relative to the second elongated hole. A folding drive structure according to claim 2, wherein said folding drive structure further comprises a second drive, said second drive driving said drive member to slide in the direction of said first elongated hole, The card slot is separated from the axle pin. A folding drive structure according to claim 3, wherein said folding drive structure further comprises a first elastic member, said first elastic member providing an elastic force for engaging said card slot with said shaft pin . A folding drive structure according to claim 4, wherein said folding drive structure further comprises a connecting member, one end of said connecting member being pivotally connected coaxially with said second pivoting shaft, said connecting member The other end is pivotally connected coaxially with the fourth pivot shaft; one end of the first elastic member is connected to the connecting member, and the other end is connected to the driving member. A folding drive structure according to claim 3, wherein said second drive comprises an operating member, said operating member being pivotally coaxially coupled to said fourth pivot shaft, A folding drive structure according to claim 6 wherein said operating member has a first pin. a rear end of the driving member is provided with a hook body slidingly abutting against the first pin column, and the operating member is operated to rotate the first pin column around the fourth pivoting shaft, thereby pushing the center The hook body slides the driving member to disengage the open slot from the axle pin, thereby achieving folding of the folding cart. The folding drive structure according to claim 1, wherein a rear end of the pushing member is provided with a third elongated hole, and the fourth pivoting shaft is slidably disposed in the third elongated hole. . The folding drive structure according to claim 8, wherein the folding drive structure further comprises a first locking hook, a middle portion of the first locking hook is pivotally connected to a rear end of the front lever, and the rear The inner side of the axle protrudes from the locking shaft, and the first locking hook is engaged with the locking shaft when the folding cart is deployed. The folding drive structure according to claim 9, wherein one side of the first locking hook is bent to extend out of the first abutting top, and the driving member is provided with a second pin, the driving member Abutting the first abutting top by the second pin further drives the first locking hook out of the locking shaft. The folding drive structure according to claim 10, wherein a second side of the first locking hook and the front pole are provided with a second hook for engaging the first locking hook with the locking shaft Elastic element. A folding drive structure according to claim 8, wherein said folding drive structure further comprises a second locking hook, said second locking hook being pivotally connected to said front lever, said second locking when folding A hook is attached to the locking shaft. The folding drive structure according to claim 12, wherein one side of the second locking hook is bent to extend out of the second abutting top, and the driving member is provided with a third pin, the driving member The second locking hook is driven away from the locking shaft by the third pin. The folding drive structure according to claim 13, wherein a third side of the second locking hook and the front pole are provided with a third engaging hook for the locking shaft Elastic element. The folding drive structure according to claim 1, wherein said first drive comprises an electric push rod, a center shaft, and a first connecting arm and a second connecting arm, said central shaft and said second pivot shaft Coaxially disposed, one end of the electric push rod is pivotally connected to the rear lever, and an output end of the electric push rod is pivotally connected to one end of the first connecting arm, and the other end of the first connecting arm Fixed to the central 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 central shaft. A folding vehicle, comprising: a front wheel bracket, a front pole, a rear wheel bracket, a rear axle and the folding drive structure according to any one of claims 1 to 15, the front end of the front pole Front wheel bracket The first rear pivotal axis of the front axle is overlapped with the front section of the rear axle, and the middle of the front axle is pivotally connected with the front end of the rear axle to form a first pivotal axis. The rear end of the rear axle is pivotally connected to the rear wheel bracket, and the folding driving structure is disposed between the front and rear axles to drive the two to expand or collapse. The folding cart according to claim 16, wherein the folding cart further comprises a seat support rod, a linkage rod, a seat and a swing rod; and a lower end of the seat support rod is fixed to the rear wheel bracket, The upper end is pivotally connected to the front end of the seat; the linkage rod is disposed at an intersection with the seat support rod and the middle portion is pivotally connected to each other, and the lower end of the linkage rod is pivotally connected to the rear end of the front pole, the upper end A pivotal connection is formed to one end of the swing lever, and the other end of the swing lever is pivotally connected to a rear end of the seat. A folding cart according to claim 17, wherein said folding cart further includes a seat armrest, and a lower end of said seat armrest is fixedly coupled to said swing link. The folding cart of claim 16 wherein said folding cart further comprises a drawbar, one end of said drawbar being pivotally coupled to said front wheel bracket and the other end being pivotally coupled to said rear axle.

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