CN212500828U - Portable foldable scooter - Google Patents

Abstract

The utility model discloses a portable foldable scooter, which comprises a frame, wherein the front side of the frame is connected with a pedal which can turn and fold towards the back side of the frame, the pedal is connected with a front end bracket, the lower part of the front end bracket is provided with a front wheel, and the upper part of the front end bracket is detachably connected with a handlebar; the top of the frame is connected with a seat frame which can be turned and folded towards the front side of the frame, and a backrest and a cushion are arranged on the seat frame; the frame is provided with a rear connecting rod mechanism which can be folded towards the front side of the frame, and the rear connecting rod mechanism is provided with a rear wheel which can be folded towards the frame; the frame is provided with a front connecting rod mechanism which can be folded towards the upper part of the frame. The scooter can be folded to facilitate transportation and storage, and is convenient to carry; especially after adding the driving combination, the unfolding and folding can be automatically completed.

Description

Portable foldable scooter

Technical Field

The utility model belongs to the technical field of vehicle, concretely relates to portable collapsible car of riding instead of walk.

Background

The scooter is used as a tool for riding instead of walk, which facilitates the traveling of people and effectively improves the life quality of people, especially for the old. Therefore, the scooter has important significance for our life. Most ride instead of walk car is bulky at present, and is very inconvenient when carrying through constrictive corridor, entry ladder and stair, also is difficult for transporting and accomodating in daily life moreover, therefore designs a section can be folded old age ride instead of walk car very necessary. And for the old people who have the leg and foot and waist problem, if the car of riding instead of walk can accomplish folding and expansion voluntarily, then it will be more convenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable foldable scooter which can be folded for convenient transportation and storage and is convenient to carry; especially, the unfolding and folding can be automatically completed after the driving combination is added, so as to solve the problems in the prior art.

The technical scheme of the utility model as follows: a portable foldable scooter comprises a frame, wherein a pedal which can be turned and folded towards the back side of the frame is connected to the front side of the frame, a front end support is connected to the pedal, a front wheel is mounted at the lower part of the front end support, and a handlebar is detachably connected to the upper part of the front end support; the top of the frame is connected with a seat frame which can be turned and folded towards the front side of the frame, and a backrest and a cushion are arranged on the seat frame; the frame is provided with a rear connecting rod mechanism which can be folded towards the front side of the frame, and the rear connecting rod mechanism is provided with a rear wheel which can be folded towards the frame; the frame is provided with a front connecting rod mechanism which can be folded towards the upper part of the frame.

Further: the front connecting rod mechanism comprises a fifth connecting rod and a sixth connecting rod which are sequentially connected in a rotating manner, and a four-connecting rod mechanism which takes the frame as a fixed part is formed by the fifth connecting rod, the sixth connecting rod, the frame and the pedal; one end of the fifth connecting rod is rotatably connected with the frame, the other end of the fifth connecting rod is rotatably connected with the sixth connecting rod, and the end, far away from the fifth connecting rod, of the sixth connecting rod is rotatably connected with the pedal.

Further: the rear connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially connected in a rotating manner, and a four-connecting-rod mechanism which takes the frame as a fixed part is formed by the first connecting rod, the second connecting rod, the third connecting rod and the frame; the end that No. two connecting rods were kept away from to a connecting rod rotates with the frame bottom and is connected, No. three connecting rods keep away from the end of No. two connecting rods and rotate with the frame top and be connected, the rear wheel rotates and connects in the junction of a connecting rod and No. two connecting rods.

Further: the frame is provided with a driving assembly, and the driving assembly comprises a stepping motor, a coupler, a worm gear, a transmission shaft, a large gear and a small gear; the stepping motor is fixed on the frame, an output shaft of the stepping motor is coaxially fixed with the worm, and the worm is driven by the stepping motor to coaxially rotate; the worm is meshed with the worm wheel, and the worm drives the worm wheel to rotate; the worm wheel and the large gear are fixedly arranged on the transmission shaft side by side, and the large gear is driven by the worm wheel through the transmission shaft to coaxially rotate; the small gear is fixedly arranged on the seat frame, the large gear is meshed with the small gear, and the large gear drives the seat frame to turn, fold or unfold along the frame through the small gear.

Further: the transmission shaft is fixedly connected with the end, far away from the second connecting rod, of the third connecting rod, and the transmission shaft drives the second connecting rod to coaxially rotate when rotating.

Further: no. three connecting rods and connected to frame's end is to frame rear side protrusion formation first ear, No. five connecting rods and connected to frame's end forms the second ear to the protrusion of frame front side, be connected with No. four connecting rods between first ear and the second ear, constitute a reverse four-bar linkage by first ear, No. four connecting rods, second ear and frame, when No. three connecting rods and transmission shaft coaxial rotation, will pull No. six connecting rods through No. four connecting rod drive and bend together, and then pull the footboard and turn to the frame rear side and fold up.

Further: the pedal comprises a horizontal plate surface and an inclined plate surface, and the front end bracket is fixedly connected with the inclined plate surface; the handlebars are connected through hinges; the handle bar is connected with the front end support through the hinge, and the front end support is connected with the handlebar through the hinge.

Further: a battery box is arranged on the inner side of the frame, the front wheel is a motor driving wheel, and the battery box supplies power to the stepping motor and the motor driving wheel.

Further: the frame, the front connecting rod mechanism and the rear connecting rod mechanism are all formed by processing plates, and the transmission shaft is formed by processing Q235.

Has the advantages that:

1. the scheme provides a portable foldable scooter which can be folded and unfolded, occupies small space after being folded, has compact structure and is convenient to carry and transport;

2. the scooter can automatically complete folding and unfolding under the action of the driving combination, and is suitable for the old and the weak;

3. the folding and unfolding of the walking assistant are carried out simultaneously under the action of the driving combination, so that the integrity is stronger;

4. according to the utility model discloses the explanation of well scheme, the car of riding instead of walk has adopted the tricycle structure to regard the front wheel as the drive wheel, stability is good, can be better on the road surface steadily go.

Drawings

FIG. 1 is a front view of the scooter of the present invention after being unfolded;

FIG. 2 is an isometric view of the scooter of the present invention;

FIG. 3 is a rear view of FIG. 2;

fig. 4 is a schematic view of the mounting structure of the driving assembly of the present invention;

FIG. 5 is a schematic view of the folded scooter of the present invention;

fig. 6 is a schematic view of the mounting structure of the middle hand screw nut and the hinge of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the utility model discloses a portable and foldable scooter, including frame 4, frame 4 front side is connected with footboard 6, and frame 4 rear side is connected with front end support 8. The front wheel 7 is installed to the lower part of front end support 8, the upper portion of front end support 8 can be dismantled and be connected with handlebar 9, and footboard 6 is articulated or rotate with frame 4 and is connected, when needs, can turn the footboard 6 to frame 4 rear side and fold up in order to reduce the whole car volume of car and the size of riding instead of walk. The top of the frame 4 is connected with a seat frame 1 which can be turned and folded towards the front side of the frame 4, and a backrest 2 and a cushion 3 are arranged on the seat frame 1. When required, the seat frame 1 can be turned and folded towards the front side of the frame 4 to reduce the volume and the size of the whole scooter. The rear connecting rod mechanism is provided with a rear wheel 5 which can be folded towards the frame 4. When needed, the rear wheel 5 can be folded towards the front side of the frame 4 to reduce the volume and the size of the whole scooter.

Through the above example, realized the folding of the whole car of riding instead of walk, and then realized the whole volume of car of riding instead of walk and reduce with the size, and then satisfy people's different demands.

For the pedal 6: the pedal 6 comprises a horizontal plate surface and an inclined plate surface, and the front end bracket 8 is fixedly connected with the inclined plate surface; the handlebar 9 is connected by a hinge 24; the hinge 24 is provided with a hand nut 23 for fastening the hinge 24, and the handle bar 9 and the front bracket 8 can be loosened or fastened by rotating the hand nut 23. The purpose of this is to: the inclined plate surface of the pedal 6 can be used as a vehicle mudguard, and the inclined plate surface of the pedal 6 also has the function of the vehicle mudguard under the condition that the pedal 6 can be folded and unfolded, so that rainwater, soil and the like are prevented from splashing to a user.

In the further optimization: the frame 4 is provided with a front connecting rod mechanism which can be folded towards the upper part of the frame 4, the front connecting rod mechanism comprises a fifth connecting rod 14 and a sixth connecting rod 15 which are connected in a rotating way in sequence, and a four-connecting-rod mechanism which takes the frame 4 as a fixed part is formed by the fifth connecting rod 14, the sixth connecting rod 15, the frame 4 and the pedal 6; one end of the fifth connecting rod 14 is rotatably connected with the frame 4, the other end of the fifth connecting rod 14 is rotatably connected with the sixth connecting rod 15, and the end of the sixth connecting rod 15, which is far away from the fifth connecting rod 14, is rotatably connected with the pedal 6. The front link mechanism is used for supporting the pedal 6, and the folding and unfolding of the pedal 6 are completed by the front link mechanism.

In the scheme, the rear connecting rod mechanism comprises a first connecting rod 10, a second connecting rod 11 and a third connecting rod 12 which are connected in a rotating mode in sequence, and the first connecting rod 10, the second connecting rod 11, the third connecting rod 12 and the frame 4 form a four-connecting-rod mechanism with the frame 4 as a fixed part; the end of the first connecting rod 10, far away from the second connecting rod 11, is rotatably connected with the bottom of the frame 4, the end of the third connecting rod 12, far away from the second connecting rod 11, is rotatably connected with the top of the frame 4, and the rear wheel 5 is rotatably connected with the joint of the first connecting rod 10 and the second connecting rod 11.

For the old, the folding and unfolding of the whole scooter is more suitable by adopting an automatic mode, and the labor is saved. Thus in this optimized embodiment: the frame 4 is provided with a driving assembly, and the driving assembly comprises a stepping motor 19, a coupler, a worm 18, a worm wheel 17, a transmission shaft 16, a large gear 20 and a small gear 22; the stepping motor 19 is fixed on the frame 4, an output shaft of the stepping motor 19 is coaxially fixed with the worm 18, and the stepping motor 19 drives the worm 18 to coaxially rotate; the worm 18 is meshed with the worm wheel 17, and the worm 18 drives the worm wheel 17 to rotate; the worm wheel 17 and the large gear 20 are fixedly arranged on the transmission shaft 16 side by side, and the large gear 20 is driven by the worm wheel 17 through the transmission shaft 16 to coaxially rotate; the small gear 22 is fixedly arranged on the seat frame 1, the large gear 20 is meshed with the small gear 22, and the large gear 20 drives the seat frame 1 to turn, fold or unfold along the frame 4 through the small gear 22.

The embodiment realizes the automatic turnover of the seat frame 1, and how to realize the automatic turnover of the pedal 6 and the rear wheel 5, and the scheme further adopts the following structure in the optimization:

the transmission shaft 16 is fixedly connected with the end of the third connecting rod 12 far away from the second connecting rod 11, and the transmission shaft 16 drives the second connecting rod 11 to coaxially rotate when rotating.

The end that No. three connecting rod 12 and frame 4 are connected is protruding to form first ear 12a to frame 4 rear side, the end that No. five connecting rod 14 and frame 4 are connected forms second ear 14a to frame 4 front side protrusion, be connected with No. four connecting rod 13 between first ear 12a and the second ear 14a, constitute a reverse four-bar linkage by first ear 12a, No. four connecting rod 13, second ear 14a and frame 4, when No. three connecting rod 12 and transmission shaft 16 coaxial rotation, will draw No. six connecting rod 15 through No. four connecting rod 13 drive No. five connecting rod 14 and bend together, and then draw footboard 6 to turn on one's side behind frame 4 and fold up.

In the further optimization: a battery box 21 is arranged on the inner side of the frame 4, the front wheel 7 is a motor driving wheel, and the battery box 21 supplies power to the stepping motor 19 and the motor driving wheel.

As a material selection optimization, in the present case: the frame 4, the front connecting rod mechanism and the rear connecting rod mechanism are all formed by processing plates, and the transmission shaft 16 is formed by processing Q235.

The following describes the folding function of the entire scooter in detail in a specific use mode:

fig. 1, fig. 2 and fig. 3 are the development views of the whole scooter of the utility model. As shown in fig. 1 to 3, the frame 4 is supported by the front wheels 7 and the rear wheels 5 after the scooter is unfolded. The front wheel 7 is a motor driving wheel, and the battery box 21 supplies power to the front wheel 7, namely the scooter in the present case is a front driving mode. In this case, the user sits on the seat cushion 3 and steers the scooter by the handle bar 9.

Fig. 5 shows the structure of the scooter after being folded. At this time, the pedals 6, the front wheels 7, the rear wheels 5, the seat frame 1, and the like are all in a state of being folded toward the vehicle body, and the entire size and volume of the scooter at this time are much smaller than those in the state of fig. 1 to 3, and therefore, the transportation is facilitated.

Regarding the folding process of the seat frame 1: as shown in fig. 4, the stepping motor 19 drives the worm wheel 17 to rotate through the worm 18, and the worm wheel 17 drives the bull gear 20 to rotate through the transmission shaft 16; the gearwheel 20 drives the pinion 22 and thus the folding of the seat frame 1 along the drive shaft 16 is effected. When the rotation directions of the transmission shafts 16 are different, the seat frame 1 is further turned to the front side of the vehicle body or turned to the rear side of the vehicle body, and thus the seat frame 1 is folded and unfolded. Therefore, the backrest 2 and the cushion 3 are both fixedly arranged on the seat frame 1.

According to fig. 2, a four-bar linkage mechanism is composed of a first connecting bar 10, a second connecting bar 11, a third connecting bar 12 and a vehicle body, wherein the vehicle body is a fixed part of the four-bar linkage mechanism. The transmission shaft 16 is fixedly connected with the third connecting rod 12. When the propeller shaft 16 rotates, the third link 12 also starts rotating centering on the center axis of the propeller shaft 16. When the third connecting rod 12 rotates and swings towards the front side of the vehicle body, the second connecting rod 11 and the first connecting rod 10 are drawn to swing towards the front side of the vehicle body simultaneously, the second connecting rod 11 and the first connecting rod 10 draw the rear wheel 5 to fold towards the front side of the vehicle body simultaneously, and finally the four-connecting-rod mechanism and the rear wheel 5 are completely folded towards the front side of the vehicle body and finally reach the folded state shown in fig. 4. When the transmission shaft 16 rotates in the reverse direction, the four-bar linkage is unfolded, and the rear wheel 5 is unfolded toward the rear side of the vehicle body.

Similarly, according to fig. 2, a four-bar linkage is formed by the fifth link 14, the vehicle body, the pedal 6 and the sixth link 15. When an external force is applied to the step panel 6, the step panel 6 can be folded as shown in fig. 4, or can be unfolded as shown in fig. 1 and 2. However, after the fourth link 13 is added, the end of the third link 12 connected with the frame 4 protrudes to the rear side of the frame 4 to form a first lug part 12a, the end of the fifth link 14 connected with the frame 4 protrudes to the front side of the frame 4 to form a second lug part 14a, the fourth link 13 is connected between the first lug part 12a and the second lug part 14a, and a reverse four-link mechanism is formed by the first lug part, the fourth link, the second lug part and the frame. When the transmission shaft 16 drives the third connecting rod 12 to rotate, the third connecting rod 12 pulls the fourth connecting rod 13 to rotate in the forward direction or the reverse direction, and therefore the pedal 6 can be automatically unfolded or folded under the driving of the transmission shaft 16.

It should be noted that: the folding and unfolding of the rear wheel 5, the pedal 6 and the seat frame 1 are realized by simultaneously driving the same transmission shaft 16, so that the rear wheel 5, the pedal 6 and the seat frame 1 are simultaneously unfolded or simultaneously folded, and the whole body is stronger.

In the present case, the drive of the transmission shaft 16 adopts the drive method of the worm 18 and the worm wheel 17: firstly, the worm 18 and the worm wheel 17 have larger torque transmission capacity, so that the rear wheel 5, the pedal 6 and the seat frame 1 can be stably folded and unfolded; on the other hand, because the worm 18 and the worm wheel 17 have self-locking characteristics, the scooter can be ensured to stably run after being unfolded.

It should be noted that: in the scheme, the handlebar 9 is connected with the front end support 8 in a mode of screwing the nut 23 by hand. By rotating the hand nut 23, the handlebar 9 is rotated and fixed with respect to the front bracket 8. At the same time, it is more important to achieve manual folding of the handlebar 9 relative to the front bracket 8.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A portable foldable scooter is characterized in that: the bicycle frame comprises a bicycle frame (4), wherein a pedal (6) capable of being turned and folded towards the rear side of the bicycle frame (4) is connected to the front side of the bicycle frame (4), a front end support (8) is connected to the pedal (6), a front wheel (7) is installed on the lower portion of the front end support (8), and a handlebar (9) is detachably connected to the upper portion of the front end support (8); the top of the frame (4) is connected with a seat frame (1) which can be turned and folded towards the front side of the frame (4), and a backrest (2) and a cushion (3) are arranged on the seat frame (1); the bicycle frame (4) is provided with a rear connecting rod mechanism which can be folded towards the front side of the bicycle frame (4), and the rear connecting rod mechanism is provided with a rear wheel (5) which can be folded towards the bicycle frame (4).

2. The portable and foldable mobility scooter as claimed in claim 1, wherein: the frame (4) is provided with a front connecting rod mechanism which can be folded towards the upper part of the frame (4), the front connecting rod mechanism comprises a fifth connecting rod (14) and a sixth connecting rod (15) which are sequentially connected in a rotating way, and a four-connecting rod mechanism which takes the frame (4) as a fixed part is formed by the fifth connecting rod (14), the sixth connecting rod (15), the frame (4) and the pedal (6); one end of the fifth connecting rod (14) is rotatably connected with the frame (4), the other end of the fifth connecting rod (14) is rotatably connected with the sixth connecting rod (15), and the end, far away from the fifth connecting rod (14), of the sixth connecting rod (15) is rotatably connected with the pedal (6).

3. The portable and foldable mobility scooter as claimed in claim 2, wherein: the rear connecting rod mechanism comprises a first connecting rod (10), a second connecting rod (11) and a third connecting rod (12) which are sequentially connected in a rotating manner, and the first connecting rod (10), the second connecting rod (11), the third connecting rod (12) and the frame (4) form a four-connecting-rod mechanism which takes the frame (4) as a fixed part; the end of the first connecting rod (10) far away from the second connecting rod (11) is rotatably connected with the bottom of the frame (4), the end of the third connecting rod (12) far away from the second connecting rod (11) is rotatably connected with the top of the frame (4), and the rear wheel (5) is rotatably connected with the joint of the first connecting rod (10) and the second connecting rod (11).

4. A portable and collapsible walker as claimed in claim 3 wherein: the frame (4) is provided with a driving assembly, and the driving assembly comprises a stepping motor (19), a coupler, a worm (18), a worm wheel (17), a transmission shaft (16), a large gear (20) and a small gear (22); the stepping motor (19) is fixed on the frame (4), an output shaft of the stepping motor (19) is coaxially fixed with the worm (18) through a coupler, and the stepping motor (19) drives the worm (18) to coaxially rotate; the worm (18) is meshed with the worm wheel (17), and the worm (18) drives the worm wheel (17) to rotate; the worm wheel (17) and the large gear (20) are fixedly arranged on the transmission shaft (16) side by side, and the worm wheel (17) drives the large gear (20) to coaxially rotate through the transmission shaft (16); the small gear (22) is fixedly arranged on the seat frame (1), the large gear (20) is meshed with the small gear (22), and the large gear (20) drives the seat frame (1) to be overturned, folded or unfolded along the frame (4) through the small gear (22).

5. The portable and foldable mobility scooter as claimed in claim 4, wherein: the transmission shaft (16) is fixedly connected with the end, far away from the second connecting rod (11), of the third connecting rod (12), and the transmission shaft (16) drives the second connecting rod (11) to coaxially rotate when rotating.

6. The portable and foldable mobility scooter as claimed in claim 5, wherein: no. three connecting rod (12) are connected with frame (4) the end to frame (4) rear side protrusion formation first ear (12 a), the end that No. five connecting rod (14) are connected with frame (4) forms second ear (14 a) to frame (4) front side protrusion, be connected with No. four connecting rod (13) between first ear (12 a) and second ear (14 a), constitute a reverse four-bar linkage by first ear (12 a), No. four connecting rod (13), second ear (14 a) and frame (4), when No. three connecting rod (12) and transmission shaft (16) coaxial rotation, will pull No. six connecting rod (15) and bend together through No. four connecting rod (13) drive No. five connecting rod (14), and then pull footboard (6) and turn to fold to frame (4) rear side.

7. The portable and foldable mobility scooter as claimed in claim 4, wherein: the pedal (6) comprises a horizontal plate surface and an inclined plate surface, and the front end support (8) is fixedly connected with the inclined plate surface; the handlebars (9) are connected through a hinge (24); the hinge (24) is provided with a hand-screwed nut (23) which can fasten the hinge (24), and the handlebar (9) and the front end bracket (8) can be loosened or fastened by rotating the hand-screwed nut (23).

8. The portable and collapsible walker of claim 7 further comprising: a battery box (21) is arranged on the inner side of the frame (4), the front wheel (7) is a motor driving wheel, and the battery box (21) supplies power to the stepping motor (19) and the motor driving wheel.

9. The portable and collapsible walker of claim 8 further comprising: the frame (4), the front connecting rod mechanism and the rear connecting rod mechanism are all formed by processing plates, and the transmission shaft (16) is formed by processing Q235.

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