CN113247162A

CN113247162A - Folding bicycle

Info

Publication number: CN113247162A
Application number: CN202110674625.6A
Authority: CN
Inventors: 张钊
Original assignee: Dongguan Prestige Sporting Products Co Ltd
Current assignee: Dongguan Prestige Sporting Products Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-13

Abstract

The invention discloses a folding vehicle, comprising a frame, a driving mechanism and a connecting rod; the frame includes a first frame and a second frame whose ends are pivotally connected to each other; the first frame is pivotally connected with a wheel seat ; The drive mechanism includes a first push rod and a second push rod; one end of the first push rod is pivotally connected to the first frame, and the other end is pivotally connected to one end of the second push rod; the The other end of the second push rod is pivotally connected to the second frame; one end of the connecting rod is pivotally connected to the first push rod or the second push rod, and the other end is pivotally connected to the wheel seat. The folding vehicle of the invention has the advantages of simple structure, convenient folding and small volume after folding.

Description

Folding bicycle

Technical Field

The invention relates to an electric vehicle, in particular to a folding vehicle.

Background

With the development of science and technology and the improvement of living standard of people, the electric vehicle has been developed into a medical walking aid tool from a simple tool for traveling instead of walk, and is more and more popular with some disabled people. The folding structure of the existing foldable electric vehicle is complex, the volume after folding is still large, and the structure after folding is not compact enough. Moreover, when the automobile body is folded, the operation steps are complicated, and particularly for people who are inconvenient in physical movement, the folding operation is difficult and labored, and the use is inconvenient.

Disclosure of Invention

The invention aims to provide a folding vehicle which has simple structure, convenient folding and small volume after folding.

In order to achieve the purpose, the folding bicycle provided by the invention comprises a frame, a driving mechanism and a connecting rod; the frame comprises a first frame and a second frame, the ends of the first frame and the second frame are pivoted with each other; the first vehicle frame is pivoted with a wheel seat; the driving mechanism comprises a first push rod and a second push rod; one end of the first push rod is pivoted with the first frame, and the other end of the first push rod is pivoted with one end of the second push rod; the other end of the second push rod is pivoted with the second frame; one end of the connecting rod is pivoted to the first push rod or the second push rod, and the other end of the connecting rod is pivoted to the wheel seat.

Compared with the prior art, one end of the first push rod is pivoted to the first frame, the other end of the first push rod is pivoted to one end of the second push rod, and the other end of the second push rod is pivoted to the second frame, so that the first frame and the second frame can be driven to be relatively close to each other and folded when either the first push rod or the second push rod is driven, and the purpose of rapid folding is achieved. In addition, the first frame drives the wheel seat when being folded, so that the direction control rod tilts forwards, the connecting rod is respectively connected to the wheel seat and the first push rod or the second push rod, the first frame and the second frame are folded, and the wheel swinging direction is driven at the same time, so that the direction control rod is ensured to be close to the frame and cannot tilt forwards after being folded, the folding is very convenient, and the structure is very compact, the size is very small and the carrying is convenient after being folded.

Preferably, the folding cart further comprises a driving device disposed between the frame and the driving mechanism to drive the first frame and the second frame to fold. The frame is folded by the driving device without manual folding, so that the use convenience is effectively improved.

Specifically, the driving device is pivoted to the first frame, and an output end of the driving device is pivoted to the first push rod or the second push rod.

Preferably, the folding vehicle further comprises a seat, and the seat is arranged on the frame.

Specifically, the folding vehicle further comprises a seat folding mechanism, and the seat folding mechanism is arranged between the seat and the frame so as to enable the seat to be drawn towards the frame when folded. The seat can be folded by arranging the seat folding mechanism, so that the volume of the folded folding vehicle is further reduced, and the carrying convenience is improved.

Specifically, the folding vehicle further comprises a linkage mechanism, and the linkage mechanism is arranged between the frame and the seat folding mechanism so as to drive the seat to fold when the frame is folded. The seat folding mechanism is driven by the linkage mechanism to enable the seat to be automatically folded along with the folding of the frame, so that the folding convenience is improved.

Specifically, the seat folding mechanism comprises a first support rod, a second support rod and a third support rod; the first support rod and the second support rod are pivoted in a crossed manner, and the lower end of the first support rod is pivoted with the second frame; the lower end of the second supporting rod is connected with the linkage mechanism, and the upper end of the second supporting rod is pivoted with one end of the seat; one end of the third supporting rod is pivoted with the upper end of the first supporting rod, and the other end of the third supporting rod is pivoted with the other end of the seat.

Specifically, the linkage mechanism comprises a linkage piece, one end of the linkage piece is pivoted with the first vehicle frame, and the other end of the linkage piece is pivoted with the lower end of the second support rod. The seat folding mechanism is driven by the linkage piece, so that the seat can be folded along with the folding of the frame, and the folding convenience of the folding vehicle is effectively improved.

Specifically, the seat folding mechanism further comprises a back support and a traction member, the back support is pivoted with the upper end of the first support rod, one end of the traction member is pivoted with the seat, and the other end of the traction member is pivoted with the back support. By arranging the traction piece, the back support can be automatically folded along with the folding of the seat folding mechanism, thereby improving the convenience of folding.

Drawings

Fig. 1 is a perspective view of the folding cart of the present invention.

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

Fig. 3 is a view showing the folding cart of the present invention with the seat removed.

Fig. 4 is a structural view of a wheel carrier of the folding cart of the present invention.

Fig. 5 is a structural view of a frame of the folding cart of the present invention.

Fig. 6 is a side view of the foldable vehicle of the present invention when it is folded in half.

Fig. 7 is a perspective view of the foldable vehicle of the present invention when it is folded in half.

Fig. 8 is a side view of the foldable vehicle of the present invention after it is completely folded.

Fig. 9 is a left side view of the foldable vehicle of the present invention after being completely folded.

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.

Referring to fig. 1 and 2, the foldable vehicle 100 of the present invention includes a frame 1, a wheel bracket 2, a linkage mechanism 3, a driving device 6, a driving mechanism 7 and a connecting rod 8, wherein a wheel seat 41 is pivotally connected to a first end of the frame 1. The wheel seat 41 is provided with a first wheel 4, the wheel brackets 2 are symmetrically arranged at two sides of the second end of the frame 1 in the width direction, and the two wheel brackets 2 are provided with a second wheel 5; the first end is the front end of the frame 1, the second end is the rear end of the frame 1, the first wheel 4 is a front wheel, the second wheel 5 is a rear wheel, and the two second wheels 5 and the first wheel 4 form a tricycle.

Specifically, the following:

as shown in fig. 1, 3 and 5, the frame 1 includes a first frame 11 and a second frame 12, wherein adjacent ends of the first frame 11 and the second frame 12 are pivotally connected to each other at a pivot point a, so that the first frame 11 and the second frame 12 are arranged along a length direction of the frame 1; the first frame 11 is of a V-shaped or U-shaped structure, the second frame 12 is of a straight-line-shaped structure, and the first frame and the second frame are connected to enable the frame 1 to be of a Y-shaped structure. The front end of the first frame 11 is pivotally connected with the wheel seat 41. The driving mechanism 7 is disposed between two forks of the V-shaped or U-shaped structure of the first frame 11.

Referring to fig. 5, the driving mechanism 7 includes a first push rod 71 and a second push rod 72; one end of the first push rod 71 is pivotally connected to the first frame 11 at a pivot point n, and the other end of the first push rod 71 is pivotally connected to one end of the second push rod 72 at a pivot point m. The other end of the second push rod 72 is pivotally connected to the second frame 12 at a pivot point o. One end of the first push rod 71 is pivoted to the first frame 11, the other end of the first push rod 71 is pivoted to one end of the second push rod 72, and the other end of the second push rod 72 is pivoted to the second frame 12, so that the first frame 11 and the second frame 12 can be driven to be relatively close to each other and folded when either the first push rod 71 or the second push rod 72 is driven, and the purpose of rapid folding is achieved. The driving device 6 is disposed between the frame 1 and the driving mechanism 7 to drive the first frame 11 and the second frame 12 to fold. The driving device 6 is an electric push rod. Specifically, the driving device 6 is pivotally connected to the first frame 11 at a pivot point p, and an output end of the driving device 6 is pivotally connected to a middle portion of the first push rod 71 at a pivot point q. Of course, the output end of the driving device 6 may also be pivoted to the second push rod 7. The frame 1 can be folded by the driving device 6 without manual folding, thereby effectively improving the use convenience.

Referring to fig. 5, one end of the connecting rod 8 is pivotally connected to the first push rod 71, and the pivot axis r is coaxial with the pivot axis q of the driving device 6, which is pivotally connected to the first push rod 71, and the other end of the connecting rod 8 is pivotally connected to the wheel seat 41 of the first wheel 4, where the pivot point is s. The front end of the first frame 4 is pivoted to the wheel seat 41 of the first wheel 4, and the pivot point is 8 a. Pivot point s is not at the same point as pivot point 8a and is located above the latter. Since the first frame 11 drives the first wheel 4 to move when being folded, so that the direction control rod 42 on the wheel seat 41 tilts forward, by providing the connecting rod 8, the connecting rod 8 can drive the first wheel 4 to swing while the first frame 11 and the second frame 12 are folded, thereby ensuring that the direction control rod 42 does not tilt forward after being folded.

As shown in fig. 2, the foldable vehicle 100 further includes a seat 9 and a seat folding mechanism 10, wherein the seat 9 is disposed on the frame 1. The seat folding mechanism 10 is disposed between the seat 9 and the frame 1, so as to fold the seat 9 toward the frame 1 when folded. By providing the seat folding mechanism 10, the seat 9 can be folded, so that the folded volume of the foldable vehicle 100 is further reduced, and the convenience of carrying is improved. The linkage mechanism 3 is disposed between the frame 1 and the seat folding mechanism 10 to fold the seat 9 when the frame 1 is folded. The seat folding mechanism 10 is driven by the linkage mechanism 3, so that the seat 9 can be automatically folded along with the folding of the frame 1, and the convenience of folding is improved. Specifically, the seat folding mechanism 10 includes a first support bar 101, a second support bar 102, a third support bar 103, a back support 104 and a traction member 105; the first supporting rod 101 and the second supporting rod 102 are crosswise pivoted, and a pivoting point is t, and the lower end of the first supporting rod 101 is pivoted to the second frame 12, and the pivoting point is u. The lower end of the second support rod 102 is pivotally connected to the linkage mechanism 3, and more preferably, the linkage mechanism 3 includes linkage members 31 symmetrically disposed on two sides of the frame 1, one end of the linkage member 31 is pivotally connected to the first frame 11, and the other end is pivotally connected to the lower end of the second support rod 102. The upper end of the second support rod 102 is pivotally connected to one end of the seat 9 at a pivot point v. One end of the third supporting rod 103 is pivotally connected to the first supporting rod 101 at a pivot point w, and the other end of the third supporting rod is pivotally connected to the other end of the seat 9 at a pivot point x. An extending part 1011 extends upwards from the upper end of the first supporting rod 101, and the back support 104 is pivotally connected to the extending part 1011 of the first supporting rod 101. One end of the traction member 105 is pivotally connected to the seat 9 at a pivot point y, and the other end is pivotally connected to the back support 104 at a pivot point z. By providing the traction member 105, the back support 104 can be automatically folded along with the folding of the seat folding mechanism 10, thereby improving the convenience of folding.

Referring to fig. 4, the wheel bracket 2 includes a first supporting arm 21, a second supporting arm 22, a sliding seat 23, a swing rod 24 and a connecting seat 25; one end of the first support arm 21 is pivotally connected to the wing 121 of the second frame 12 at a pivot point g, and the other end of the first support arm is pivotally connected to the connecting seat 25 at a pivot point h; the two first support arms 21 located on both sides of the second frame 12 form a V-shape. One end of the second supporting arm 22 is pivoted to the first supporting arm 21 at a pivot point i, and the other end is pivoted to the sliding seat 23 at a pivot point j, and the sliding seat 23 is slidably disposed along the front and rear directions of the second frame 12. Therefore, an adjustable triangular structure is formed among the first supporting arm 21, the second supporting arm 22, the sliding seat 23 and the second frame 12, when the sliding seat 23 slides and the second supporting arm 22 swings, the whole wheel support 2 can be moved and folded, the structure connection is stable, the support performance of the frame 1 is strong, the folding is simple and convenient, and the folding convenience is effectively improved. The second wheel 5 is arranged on the connecting seat 25; one end of the swing link 24 is pivotally connected to the connecting base 25 at a pivot point k, and the other end is pivotally connected to the second frame 12 at a pivot point l. A deformable quadrilateral structure is formed among the first supporting arm 21, the swing rod 24, the second frame 12 and the connecting seat 25; when the first supporting arm 21 swings and folds, if the second wheel 5 is directly arranged on the first supporting arm 21, although the second wheel 5 can also be folded, the second wheel 5 may swing after being folded, so that the compactness and the aesthetic property after being folded are affected, therefore, the swing rod 24 and the connecting seat 25 are arranged, the second wheel 5 can be synchronously driven to swing in the positive direction when the first supporting arm 21 drives the second wheel 5 to swing and fold, the second wheel 5 still keeps the posture in the positive front after being folded, and the compactness and the aesthetic property after being folded are ensured.

Referring to fig. 3, the linkage mechanism 3 is disposed between the frame 1 and the wheel supports 2, and the frame 1 drives the wheel supports 2 at two sides to move toward the middle through the linkage mechanism 3 when being folded. Specifically, the linkage mechanism 3 is connected between the first frame 11 and the wheel bracket 2. The linkage mechanism 3 includes a pushing mechanism and the linkage member 31. Taking one side as an example, one end of the linkage member 31 is connected with the pushing mechanism, and the other end is connected with the first frame 1; the pushing mechanism is connected with the wheel bracket 2. Specifically, the pushing mechanism includes a pushing member 32 and a connecting member 33, one end of the pushing member 32 is pivotally connected to the link member 31 through a central axis b, and the central axis b and the second support rod 102 are pivotally connected to the pivot shaft of the link member coaxially. The other end of the pushing member 32 is pivotally connected to the second frame 12 at a pivot point c. The pushing member 32 has two arms respectively located on the left and right sides of the second frame 12, and the connecting members 33 are symmetrically disposed on the two sides of the second frame 12. Each arm is used to push the connecting member 33 on the same side. One end of the connecting piece 33 is arranged in a sliding manner along the front and rear directions of the frame 1 and is pivoted with the wheel bracket 2, and the pivoting point is d; specifically, the connecting member 33 is pivotally connected to the sliding base 23, and the pivot axis d is perpendicular to the pivot axis j of the second supporting arm 22 pivotally connected to the sliding base 23. The other end of the connecting piece 33 is pivoted with the pushing piece 32, and the pivoting point is e. The first frame 11 is provided with a pivot lug 111, and the linkage member 31 is pivoted on the pivot lug 111 at a pivot point f. The linkage member 31 drives the pushing mechanism to fold the wheel bracket 2 along with the folding of the frame 1, thereby effectively improving the convenience of folding the foldable vehicle 100.

Referring to fig. 4, a sliding guide rail 121 for guiding the sliding seat 23 to slide is disposed at the rear end of the second frame 12. The connecting member 33 is slidably inserted into the sliding rail 121 along a pivot axis d pivotally connected to the sliding base 23. By the guiding of the sliding guide rail 121, not only the stability and smoothness of folding the wheel bracket 2 can be ensured, but also the stability of the structural connection of the whole folding vehicle 100 can be improved.

In combination with the above description and the accompanying drawings, the folding principle of the folding cart 100 of the present embodiment is described in detail as follows:

referring to fig. 6 to 9, when folding, the driving device 6 starts and pushes the first push rod 71 to swing upward, the first push rod 71 pushes the second push rod 72, and the second push rod 72 pushes the second frame 12, so that the adjacent ends of the first frame 11 and the second frame 12 rise, and the other ends of the first frame 11 and the second frame 12 are close to each other toward the middle. The first frame 11 is folded and the linkage member 31 is driven, so that the rear end of the linkage member 31 moves backwards, the rear end of the linkage member 31 drives the pushing member 32 to swing backwards, the pushing member 32 drives one end of the connecting member 33 to swing, and meanwhile, the other end of the connecting member 33 drives the sliding seat 23 to slide backwards along the sliding guide rail 121 of the second frame 12. At this time, the sliding seat 23 drives the second supporting arm 22 to swing, and the other end of the second supporting arm 22 drives the first supporting arm 21 to draw close the second frame 12, so that the first supporting arm 21, the swing rod 24, the second frame 12 and the connecting seat 25 draw close the second frame 12 to fold. In the above process, the linkage members 31 on both sides push the pushing members 32 to move through the central shaft, so that the two wheel carriers 2 are folded synchronously. When the linkage member 31 pushes the wheel bracket 2 to fold, the linkage member 31 pushes the lower end of the second support rod 102 to swing, so that the lower ends of the first support rod 101 and the second support rod 102 are away from each other and close to the second frame 12. At this time, the third support rod 103 drives the seat 9 to approach the second frame 12; and the traction member 105 drives the back support 104 to close and fold towards the second frame 12. In addition, the rear end of the connecting rod 8 moves along with the first push rod 71, so as to drive the wheel seat 41 to rotate, and the direction control rod 42 on the wheel seat 41 is close to the first vehicle frame 11. Finally, the frame 1, the wheel bracket 2, the seat 9 and the seat folding mechanism 10 are drawn together to fold the foldable vehicle 100 completely.

According to the foldable vehicle 100, the first wheel 4 is arranged at the first end of the vehicle frame 1, the wheel supports 2 are arranged on the two sides of the second end of the vehicle frame 1 in the width direction, the second wheels 5 are arranged on the two wheel supports 2, and the linkage mechanism 3 is connected between the vehicle frame 1 and the wheels, so that the vehicle frame 1 can drive the two wheel supports 2 to be drawn together towards the middle through the linkage mechanism 3 when being folded, the vehicle frame of the foldable vehicle 100 can be folded in the length direction and can also be folded in the width direction, the rear wheels can be folded, the size of the whole foldable vehicle 100 can be greatly reduced after being folded, the portability is effectively improved, and the use convenience is improved.

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 bicycle which characterized in that: comprises a frame, a driving mechanism and a connecting rod; the frame comprises a first frame and a second frame, the ends of the first frame and the second frame are pivoted with each other; the first vehicle frame is pivoted with a wheel seat; the driving mechanism comprises a first push rod and a second push rod; one end of the first push rod is pivoted with the first frame, and the other end of the first push rod is pivoted with one end of the second push rod; the other end of the second push rod is pivoted with the second frame; one end of the connecting rod is pivoted to the first push rod or the second push rod, and the other end of the connecting rod is pivoted to the wheel seat.

2. The folding cart of claim 1, wherein: the folding bicycle further comprises a driving device, and the driving device is arranged between the bicycle frame and the driving mechanism to drive the first bicycle frame and the second bicycle frame to fold.

3. The folding cart of claim 2, wherein: the driving device is pivoted to the first frame, and an output end of the driving device is pivoted to the first push rod or the second push rod.

4. The folding cart of claim 1, wherein: the folding bicycle further comprises a seat, and the seat is arranged on the bicycle frame.

5. The folding cart of claim 4, wherein: the folding vehicle further comprises a seat folding mechanism, and the seat folding mechanism is arranged between the seat and the frame so as to enable the seat to be drawn towards the frame when folded.

6. The folding cart of claim 5, wherein: the folding vehicle further comprises a linkage mechanism, and the linkage mechanism is arranged between the frame and the seat folding mechanism so as to drive the seat to be folded when the frame is folded.

7. The folding cart of claim 6, wherein: the seat folding mechanism comprises a first supporting rod, a second supporting rod and a third supporting rod; the first support rod and the second support rod are pivoted in a crossed manner, and the lower end of the first support rod is pivoted with the second frame; the lower end of the second supporting rod is connected with the linkage mechanism, and the upper end of the second supporting rod is pivoted with one end of the seat; one end of the third supporting rod is pivoted with the upper end of the first supporting rod, and the other end of the third supporting rod is pivoted with the other end of the seat.

8. The folding cart of claim 7, wherein: the linkage mechanism comprises a linkage piece, one end of the linkage piece is pivoted with the first frame, and the other end of the linkage piece is pivoted with the lower end of the second supporting rod.

9. The folding cart of claim 8, wherein: the seat folding mechanism further comprises a back support and a traction piece, the back support is pivoted with the upper end of the first support rod, one end of the traction piece is pivoted with the seat, and the other end of the traction piece is pivoted with the back support.