Scooter

Abstract

The utility model relates to a scooter which comprises a front foot assembly, a front wheel assembly and a rear foot assembly. The rear foot assembly comprises a rear frame, a rear wheel and a sliding seat, the rear frame and the front frame are pivoted to the center shaft, and the sliding seat is provided with a handrail and is connected to the rear frame in a sliding mode; the seat assembly comprises a seat frame pivoted with the front frame and the sliding seat; the folding assembly comprises an electric push rod which is arranged on the rear foot stand and is pivoted with the sliding seat; wherein the handrail comprises a supporting part connected with the sliding seat and a supporting plate connected to the upper portion of the supporting part in a sliding mode, and when the scooter is in an unfolded state, the front frame and the rear frame are unfolded around the center shaft, the sliding seat is located at the unfolded position close to the center shaft, and the tail of the seat frame is far away from the rear wheel; when the electric push rod is operated to retract, the sliding seat drives the armrest layers to retract to the two sides of the rear frame, the front foot assembly and the seat assembly are drawn close to the rear foot assembly, the supporting plate can slide towards the front end of the supporting part, and the scooter is further folded. The scooter has the advantages of being small in folding size and low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mobile devices, in particular to a scooter. BACKGROUND

[0002] The existing scooters mostly set the handrails on the backrests or directly fix them on other structures, and the handrail itself cannot adjust the length of the hand supporting plate. Generally, the short length of the hand supporting plate of the handrail will reduce the comfort of use, but if it is longer, the handrail will mostly protrude when the scooter is folded, and the overall size of the scooter is larger, and the comfort and compactness are incompatible. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above-mentioned deficiencies, the present application provides a scooter, which is simple in structure, and the handrail is connected with the scooter in folding and unfolding, and the position of the hand supporting plate of the handrail can be adjusted, which improves the user experience and further reduces the folding size of the scooter.

[0004] The purpose of the present application is achieved as follows:

[0005] A scooter comprises:

[0006] A front leg assembly comprising a front frame and a front wheel;

[0007] A rear leg assembly comprising a rear frame, a rear wheel and a sliding seat, the rear frame is pivoted to the center shaft with the front frame, and the sliding seat is provided with a handrail and is slidingly connected to the rear frame;

[0008] A seat assembly comprising a seat frame pivoted to the front frame and the sliding seat;

[0009] A folding assembly comprising an electric push rod, the electric push rod is arranged on the rear leg frame and is pivoted to the sliding seat;

[0010] The handrail comprises a supporting part connected to the sliding seat and a hand supporting plate slidingly connected above the supporting part, in the unfolded state of the scooter, the front frame and the rear frame are unfolded around the center shaft, the sliding seat is located at the unfolded position close to the center shaft, and the tail of the seat frame is away from the rear wheel; when the electric push rod is operated to be retracted, the sliding seat drives the handrail to be retracted and stacked on both sides of the rear frame, the front leg assembly and the seat assembly are close to the rear leg assembly, the hand supporting plate can slide to the front end of the supporting part, and the scooter is further folded.

[0011] Further, the bottom of the seat frame is provided with a pivot seat pivoted to the front frame and the sliding seat at the same time, so that the seating surface of the seat frame is higher than the front frame and the rear frame.

[0012] Further, the sliding seat, the seat frame, the front frame and the rear frame form a slider linkage mechanism, in the unfolded state of the scooter, the electric push rod is in the maximum size static state, the front frame and the rear frame are crossed and stand on the ground, and the front wheel and the rear wheel are both in contact with the ground and relatively far away.

[0013] Further, the seat assembly further comprises a backrest, the bottom of the backrest is pivotally connected with the tail of the seat frame, and a stop portion is arranged to limit the rotation of the backrest relative to the seat frame between the folded position and the unfolded position.

[0014] Further, the folding assembly further comprises a connecting rod, one end of the connecting rod is pivotally connected with the backrest, the other end of the connecting rod is pivotally connected with the rear frame and located above the sliding seat, and the connecting rod is shaped to approach the contour of the seat frame and the backrest in the unfolded state of the scooter.

[0015] Further, the sliding seat is rotationally connected with the armrest and is provided with a limiting mechanism, and the armrest can rotate relative to the sliding seat within a preset range.

[0016] Further, the supporting plate can slide on the upper end of the supporting portion in the forward and backward directions of the scooter.

[0017] Further, the front leg assembly further comprises an auxiliary supporting member, the auxiliary supporting member is arranged at the front end of the front frame, and in the unfolded state of the scooter, the auxiliary supporting member is suspended, and in the folded state of the scooter, the auxiliary supporting member is in contact with the ground.

[0018] Further, the auxiliary supporting member is rotationally connected with the front frame, and when the scooter encounters an obstacle in the driving state, the auxiliary supporting member can rotate relative to the front frame to avoid the obstacle.

[0019] Compared with the prior art, the scooter disclosed by the application has the seat frame directly connected with the front leg assembly and the rear leg assembly, simple and stable support, simultaneous linkage of the components, and the supporting plate can be adjusted at any time, which is simple and convenient for the user to operate, and under the premise that the supporting plate can meet the comfort degree, the folding size of the scooter is further reduced, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of a scooter in an unfolded state.

[0021] Figure 2 It is a side view of the scooter in the unfolded state, with the armrest on one side rotating.

[0022] Figure 3 It is a side view of a scooter in a folding process.

[0023] Figure 4 It is a side view of a scooter in a folded state.

[0024] Figure 5A partial sectional view of the sliding of the supporting plate in the unfolded state of the scooter.

[0025] Figure 6 A partial sectional view of the sliding of the supporting plate in the unfolded state of the scooter. Figure 5 A partial enlarged view of area A in the middle.

[0026] Figure 7 A partial enlarged view of area B in the middle. Figure 5 A partial enlarged view of area B in the middle.

[0027] Figure 8 A partial schematic view of the front leg assembly encountering an obstacle in the forward driving state of the scooter.

[0028] In the figure:

[0029] Front leg assembly 1, front frame 11, front wheel 12, auxiliary support 13, return torsion spring 14; rear leg assembly 2, rear frame 21, rear wheel 22, sliding seat 23, handrail 24, support part 241, supporting plate 242, positioning column 243, marble 244, limiting mechanism 25, small caster 26; seat assembly 3, seat frame 31, pivot connection seat 311, stop part 312, backrest 32; folding assembly 4, electric push rod 41, connecting rod 42; center shaft a; obstacle 05. DETAILED DESCRIPTION

[0030] The specific implementation of the utility model will be further described below in combination with the drawings and examples.

[0031] Referring to Figures 1-2 The scooter of the present application mainly consists of a front leg assembly 1, a rear leg assembly 2, a seat assembly 3 and a folding assembly 4.

[0032] The front leg assembly 1 comprises a front frame 11 and a front wheel 12, and the front wheel 12 is located at the bottom end of the front frame 11. Optionally, the front wheel 12 is a universal wheel or an omnidirectional wheel.

[0033] The rear leg assembly 2 comprises a rear frame 21, a rear wheel 22, a sliding seat 23 and a handrail 24.

[0034] The seat assembly 3 comprises a seat frame 31 and a backrest 32, and the tail of the seat frame 31 is pivotally connected with the bottom of the backrest 32.

[0035] The folding assembly 4 comprises an electric push rod 41 and a connecting rod 42.

[0036] The upper end of the front frame 11 is pivotally connected with the upper end of the rear frame 21 at the center shaft a, the sliding seat 23 is sleeved on the rear frame 21 and can slide relative to the rear frame 21 between the center shaft a and the rear wheel 22, the bottom of the seat frame 31 has a pivot connection seat 311, and the two ends of the pivot connection seat 311 are pivotally connected with the front frame 11 and the rear frame 21, respectively. The sliding seat 23, the seat frame 31, the front frame 11 and the rear frame 12 form a group of sliding block connecting rod mechanisms.

[0037] As the driving member and the limiting member of the scooter, the electric push rod 41 is connected at one end to the bottom of the rear frame 21 and is pivotally connected at the other end to the sliding seat 23, that is, the electric push rod 41 can control the sliding seat 23 to slide relative to the rear frame 21, so as to drive the front foot assembly 1 and the seat assembly 3 to displace relative to the rear frame 21.

[0038] The handrail 24 comprises a main body part support portion 241 pivotally connected to the sliding seat 23 and a supporting plate 242 slidingly connected above the support portion 241.

[0039] Referring to Figure 2 , there is a limiting mechanism 25 between the bottom of the support portion 241 and the sliding seat 23, which mainly comprises a limiting column and a circular arc groove matched with the limiting column. The handrail 24 can be rotated at any time relative to the sliding seat 23 within a preset angle range (see Figure 2 , and the reasonable angle interval of the preset range is 0°-60°), that is, the user can arbitrarily get on and off the scooter from any side.

[0040] The supporting plate 242 can slide back and forth above the support portion 241 along the direction of travel of the scooter. The hand placement and support area for the user is from the front end of the supporting plate 242 to the upper side of the support portion 241, and the size of this area will affect the comfort. When the hand placement and support area is the largest, the distance between the supporting plate 242 and the front end of the upper side of the support portion 242 is the farthest, and the tail of the supporting plate 242 is suspended (see Figure 1 ); when the area is the smallest, the distance between the supporting plate 242 and the front end of the upper side of the support portion 242 is the closest, and the head of the supporting plate 242 is suspended (see Figure 5 ). The supporting plate 242 can be operated to slide relative to the support portion 241 at any time to take into account the requirements of riding comfort and small folding size.

[0041] Referring to Figures 5-6 , by fixing the positioning column 243 on the support portion 241 and setting the sliding groove matched with the positioning column 242 on the supporting plate 242, the supporting plate 242 can slide along the length direction relative to the support portion 241. In addition, in order to have some fixed matching positions between the supporting plate 242 and the support portion 241, the above-mentioned two can be provided with the elastic ball 244 and the corresponding clamping groove, so that when the elastic ball 244 is clamped into the clamping groove, the friction between the supporting plate 242 and the support portion 241 becomes larger, and a greater force needs to be applied to operate the supporting plate 242 to slide relative to the support portion 241, so as to improve the safety and comfort.

[0042] The connecting rod 42 is pivotally connected at one end to the backrest 32 and is pivotally connected at the other end to the rear frame 21 above the sliding seat 23, see Figures 2-3The linkage rod 42 is pivoted to the center axis a of the rear frame 21, and when the sliding seat 23 slides relative to the rear frame 21, the seat frame 31 can drive the backrest 32 to close or expand. In addition, the shape of the linkage rod 42 is similar to the profile of the seat frame 31 and the backrest 32 in the unfolded state of the scooter, so as to avoid hand clamping and increase the sitting space.

[0043] Referring to Figures 1-2 , when the scooter is in the unfolded state, the electric push rod 41 is in the maximum size static state, the sliding seat 23 is pushed by the electric push rod 41 to the unfolded position close to the upper end of the rear frame 21, the sitting surface of the seat frame 31 is nearly parallel to the ground and higher than the front frame 11 and the rear frame 21, and under the action of the stop portion 312 at the tail of the linkage rod 42 and the seat frame 31, the backrest 32 is unfolded at an angle of about 100° relative to the sitting surface of the seat frame 31; the front frame 11 and the rear frame 21 are cross-tilted on the ground, and roughly form a right triangle, the front wheel 12 and the rear wheel 22 are in contact with the ground, the lower end of the support portion 241 is at an angle close to the rear frame 21 (see Figure 1 、 Figure 5 ), and the front frame 11 and the rear frame 21 are similar in shape and simple and beautiful in appearance.

[0044] Referring to Figure 2 , any side armrest 24 can be independently rotated relative to the sliding seat 23, so as to facilitate the user to get on or off the scooter from any side. In addition, the user can also operate the supporting plate 242 to slide relative to the support portion 241 to match the user's use habit.

[0045] Referring to Figure 3 , when the scooter is in the folding process, the electric push rod 41 is reduced in size, the sliding seat 23 slides towards the rear wheel 22 and drives the armrest 24 to shrink along the two sides of the rear frame 21, the rear end of the seat frame 31 pulls the bottom of the backrest 32 to displace towards the rear wheel 22 along with the sliding seat 23, at the same time, the front end of the seat frame 31 is upturned, the linkage front frame 11 rotates relative to the rear frame 21 around the center axis a, and the front wheel 12 is close to the rear wheel 22.

[0046] Referring to Figure 4 , when the scooter is in the folded state, the electric push rod 41 is in the minimum size static state, the sliding seat 23 is pulled by the electric push rod 41 to the folding position close to the rear wheel 22, the armrest 24 is shrunk along with the sliding seat 23 on the two sides of the rear frame 21, the tail of the seat frame 31 approaches the rear frame 21 and the rear wheel 22, the linkage rod 42 pulls the backrest 32 to rotate relative to the seat frame 31 to the minimum folding position, the front frame 11 rotates relative to the rear frame 21 around the center axis a to close, the front wheel 12 is stacked on the two sides of the rear wheel 22, and the supporting plate 242 slides to the upper front end of the support portion 241, so that the folding size of the scooter is further reduced.

[0047] In addition, the scooter of the present application has a smaller folding size compared with the existing scooters, which is mainly realized by the layering of the front wheel 12 and the rear wheel 22 in the folded state of the scooter. At the same time, in order to ensure the stability of the scooter in the folded state, auxiliary supports 13 and small casters 23 are respectively arranged on the front leg assembly 1 and the rear leg assembly 2.

[0048] Referring to Figure 2 , in the unfolded state of the scooter, the front wheel 12 and the rear wheel 22 are in contact with the ground, the auxiliary support 13 is suspended in front of the front wheel 12, and the small caster 26 is suspended behind the rear wheel 22.

[0049] Referring to Figure 3 , in the folding process of the scooter, the sliding seat 23 slides towards the rear wheel 22, and the front frame 11 rotates around the center axis a towards the rear frame 21 to close, during which the auxiliary support 13 and the small caster 23 respectively replace the front wheel 12 and the rear wheel 22 to contact the ground as the front wheel 12 and the rear wheel 22 relatively close.

[0050] Referring to Figure 4 , when the folding of the scooter is completed, the front wheel 12 and the rear wheel 22 are relatively layered and close to each other and are suspended, and the auxiliary support 13 located at the front end of the front wheel 12 and the small caster 23 located at the oblique rear of the rear wheel 22 are in contact with the ground. Compared with the distance between the two contact points of the layered and closed front wheel 12 and rear wheel 22, the distance between the two contact points of the auxiliary support 13 and the small caster 23 is obviously larger, that is, under the premise of ensuring the small folding size of the scooter, the stability of the scooter in the folded state is further ensured.

[0051] In addition to being directly fixed on the front frame 11, the auxiliary support 13 can also be rotationally connected to the front end of the front frame 11. Referring to Figure 7 , the auxiliary support 13 is rotationally connected with the front frame 11, and a return torsion spring 14 is arranged between the two, the auxiliary support 13 can swing relative to the front frame 11 between an active position away from the front wheel 12 and an inactive position close to the front wheel 12, and the return torsion spring 14 always has a tendency to rotate the auxiliary support 13 to the active position.

[0052] Referring to Figure 8 , when the front leg assembly 1 encounters an obstacle 05 in the forward driving state of the scooter, the auxiliary support 13 can be pushed by the obstacle 05 to flip relative to the front frame 11 to the inactive position to avoid the obstacle 05. After the front leg assembly 1 passes over the obstacle 05, the auxiliary support 13 is automatically reset to the active position under the action of the return torsion spring 14.

[0053] When the scooter is operated from the unfolded state to the folded state, the auxiliary support 13 is always in the active position and gradually replaces the front wheel 12 to contact the ground. Therefore, as Figures 7-8 indicated, the auxiliary support 13 not only ensures the small folding size of the scooter, but also greatly improves the stability of the scooter in the folded state and the obstacle avoidance ability of the scooter in driving.

[0054] The scooter of the present application has the seat frame directly connected to the front and rear leg assemblies, simple and stable support, simultaneous linkage of the assemblies, and the tray can be adjusted at any time, simple and convenient operation for the user, and further reduction of the folding size of the scooter under the premise that the tray can meet the comfort of use.

[0055] In the above embodiments, the utility model is only described exemplarily, but those skilled in the art can make various modifications to the utility model without departing from the spirit and scope of the utility model after reading the present patent application, and these improvements shall also be included in the protection scope of the utility model.

Claims

1. A scooter, characterized in that, The utility model relates to a folding scooter, comprising: a front leg assembly including a front frame and a front wheel; a rear leg assembly including a rear frame, a rear wheel and a sliding seat, the rear frame being pivotally connected to the front frame at a central axis, the sliding seat being slidably connected to the rear frame and provided with a handrail; a seat assembly including a seat frame pivotally connected to the front frame and the sliding seat; a folding assembly including an electric push rod, the electric push rod being provided on the rear leg assembly and pivotally connected to the sliding seat; wherein the handrail includes a support portion connected to the sliding seat and a tray slidably connected to the support portion, in the unfolded state of the scooter, the front frame and the rear frame are unfolded around the central axis, the sliding seat is located at an unfolded position close to the central axis, and the tail of the seat frame is away from the rear wheel; when the electric push rod is operated to be retracted, the sliding seat drives the handrail to be retracted and stacked on both sides of the rear frame, the front leg assembly and the seat assembly are drawn to the rear leg assembly, the tray can slide to the front end of the support portion, and the scooter is further folded.

2. The scooter of claim 1, wherein, The bottom of the seat frame is provided with a pivot seat pivotally connected to the front frame and the sliding seat, so that the seating surface of the seat frame is higher than the front frame and the rear frame.

3. The scooter of claim 2, wherein, The sliding seat, the seat frame, the front frame and the rear frame form a sliding block linkage mechanism, in the unfolded state of the scooter, the electric push rod is in the maximum size static state, the front frame and the rear frame are crossly and obliquely erected on the ground, and the front wheel and the rear wheel are both in contact with the ground and relatively far away.

4. The scooter of claim 1, wherein, The seat assembly further includes a backrest, the bottom of the backrest is pivotally connected to the tail of the seat frame, and a stop portion is arranged on the backrest to limit the rotation of the backrest relative to the seat frame between the folded position and the unfolded position.

5. The scooter of claim 1, wherein, The folding assembly further includes a connecting rod, one end of the connecting rod is pivotally connected to the backrest, the other end of the connecting rod is pivotally connected to the rear frame and located above the sliding seat, and when the sliding seat slides relative to the rear frame, the seat frame can drive the backrest to be drawn or unfolded.

6. The scooter of claim 5, wherein, The connecting rod has an outline close to the contour of the seat frame and the backrest in the unfolded state of the scooter.

7. The scooter of claim 1, wherein, The sliding seat is rotatably connected to the handrail and provided with a limiting mechanism, and the handrail can rotate relative to the sliding seat within a preset range.

8. The scooter of claim 1, wherein, The tray can slide forward and backward on the upper end of the support portion along the direction of travel of the scooter.

9. The scooter of claim 1, wherein, The front leg assembly further includes an auxiliary support, the auxiliary support is arranged at the front end of the front frame, the auxiliary support is suspended in the unfolded state of the scooter, and the auxiliary support contacts the ground when the scooter is folded.

10. The scooter of claim 1, wherein, The auxiliary support is rotatably connected to the front frame, and when the scooter encounters an obstacle during travel, the auxiliary support can rotate relative to the front frame to avoid the obstacle.

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