CN111186520B

CN111186520B - Portable folding scooter

Info

Publication number: CN111186520B
Application number: CN202010071772.XA
Authority: CN
Inventors: 吴旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-11-16
Anticipated expiration: 2040-01-21
Also published as: CN111186520A

Abstract

The invention discloses a portable folding scooter, which comprises a scooter head, a front chassis, a rear chassis and a seat, wherein the scooter head is hinged with the front chassis, the front chassis is hinged with the rear chassis, the seat is hinged with the rear chassis, the portable folding scooter also comprises a first connecting rod, a second connecting rod and a sliding rod, one end of the first connecting rod is hinged with the lower end of the scooter head, and the other end of the first connecting rod is hinged with the rear chassis; the seat is provided with a sliding chute, one end of the sliding rod can slide along the sliding chute and can rotate around the end, and the other end of the sliding rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is hinged with the front chassis. The invention provides a portable folding scooter which is simple in overall structure, stable in structure, small in overall weight and convenient to carry, the overall folding of the scooter is realized through one folding action, the folding and unfolding of the scooter are convenient, and the efficiency is high.

Description

Portable folding scooter

Technical Field

The invention relates to the technical field of a scooter, in particular to a portable folding scooter.

Background

The scooter is also called a lazy people scooter, refers to a transportation tool and an auxiliary tool aiming at the purpose of scooter, and can be an automobile, an electric bicycle, an electric scooter, a two-wheeled automatic balance scooter and a single-wheeled balance scooter which can be used for scooter at home. The scooter greatly facilitates the travel of people. However, the existing scooter cannot be folded or has a complex folding structure, time and labor are wasted in the folding and unfolding processes, the use is inconvenient, and the folded scooter is not easy to carry, so that the portable folding scooter disclosed by the application can realize the integral folding and unfolding of the scooter and has a simple folding structure; and the folded scooter has small weight and is convenient to carry.

Chinese patent application publication No. CN202080398U, entitled "folding device for scooter", published as 2011, 12/21/discloses, which comprises a scooter main body, a front wheel assembly and a handle assembled at the front side of the scooter main body, a rear wheel assembly pivotally connected at the rear side of the scooter main body, a folding mechanism assembled between the rear wheel assembly and the scooter main body and connected with the scooter main body and the rear wheel assembly, so that when the scooter is folded, the folding mechanism is only needed to move the scooter main body and the rear wheel assembly to fold together, and the handle pivotally connected to the front wheel assembly is lowered to fold the scooter to flatten the scooter, thereby facilitating folding of the scooter and greatly reducing the volume of the scooter. However, the scooter in the patent still has the problems that the folding structure is complex, and the folding and unfolding processes are time-consuming and labor-consuming.

Disclosure of Invention

The invention aims to solve the problems that the folding structure of the scooter is complex and the folding and unfolding processes are time-consuming and labor-consuming in the prior art, and provides the portable folding scooter, which has the advantages of simple overall structure, stable structure, small overall weight and convenience in carrying, realizes the overall folding of the scooter through one folding action, is convenient to fold and unfold and has high efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a portable folding scooter comprises a scooter head, a front chassis, a rear chassis and a seat, wherein the scooter head is hinged with the front chassis, the front chassis is hinged with the rear chassis, the seat is hinged with the rear chassis, the portable folding scooter further comprises a first connecting rod, a second connecting rod and a sliding rod, one end of the first connecting rod is hinged with the lower end of the scooter head, and the other end of the first connecting rod is hinged with the rear chassis; the seat is provided with a sliding chute, one end of the sliding rod can slide along the sliding chute and can rotate around the end, and the other end of the sliding rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is hinged with the front chassis.

When the scooter in the technical scheme needs to be folded, the front chassis and the rear chassis are driven manually or electrically, the hinge points of the front chassis and the rear chassis start to be folded, the hinge points of the front chassis and the rear chassis are relatively lifted upwards, one end of the first connecting rod is extruded by the rear chassis to move towards one side of the scooter head, and the scooter head starts to be folded under the extrusion force; one end of the second connecting rod is extruded by the front chassis to move to the other side firstly, the second connecting rod pushes one end of the sliding rod, and the other end of the sliding rod slides along the sliding groove and drives the front cross strip to rotate, so that the seat is folded; when the front chassis and the rear chassis are folded in place, the vehicle head, the front chassis, the rear chassis and the seat are all folded in place. When the front chassis and the rear chassis need to be unfolded, the front chassis and the rear chassis are unfolded. The technical scheme realizes the integral folding of the scooter through one folding action, and the scooter is convenient to fold and unfold and has high efficiency; because the folding structure is simple, the whole scooter is more portable.

Preferably, the device further comprises a driving mechanism, one end of the driving mechanism is hinged with the front chassis, and the other end of the driving mechanism is hinged with the rear chassis. In the above technical solution, the driving mechanism may be a driving mechanism capable of generating linear driving force, such as an electric push rod, a screw nut driving structure, a rack and pinion driving structure, an air cylinder, an oil cylinder, and the like. When the scooter needs to be folded, the driving mechanism is contracted to drive the front chassis and the rear chassis to be folded, the whole folding of the scooter is realized through one driving mechanism, one-key folding and one-key unfolding of the scooter are realized, the folding and the unfolding are convenient, and the efficiency is high.

Preferably, the scooter further comprises a buffer spring, one end of the buffer spring is connected with the front chassis, the other end of the buffer spring is connected with the rear chassis, and when the scooter is unfolded, a buffer included angle exists between the stretching direction of the buffer spring and the stretching direction of the driving mechanism. The included angle of the buffer is more than 7-9 degrees. When the scooter is unfolded, the driving mechanism is in a completely extended state and is almost parallel to the front chassis and the rear chassis, at the moment, even if the driving mechanism changes a small length, the front chassis and the rear chassis can rotate at a large angle, and due to the existence of manufacturing errors and installation errors, the driving mechanism is difficult to control the stability of the relative position of the front chassis and the rear chassis, and the front chassis and the rear chassis are easy to rotate relatively. The buffer spring can solve the problem, and the movable gap between the front chassis and the rear chassis is used as a buffer space when the front chassis and the rear chassis are unfolded, so that the buffer performance and the comfort of the scooter are improved. Simultaneously, when the car of riding instead of walk expandes, actuating mechanism has a dead point, and the extension line of actuating mechanism's contractile force passes through the articulated shaft on preceding chassis and back chassis promptly, and during folding, if the car of riding instead of walk just in time is in this dead point, then actuating mechanism probably is blocked and dies, can't realize folding fast, and buffer spring can guarantee when not having the passenger on the seat, and the certain distance is close to each other on pulling end preceding dish and the back chassis, makes the car of riding instead of walk keep away from this dead point, guarantees that the car of riding instead of walk can fold fast.

Preferably, the buffer spring is a gas spring. The force generated by the buffer spring is a contraction force. Compared with a common spring, the air spring has the advantages of small dynamic force change, easy control, capability of buffering the stability of force and more comfort of the scooter.

Preferably, the seat comprises a seat cushion, a front cross strip and a rear cross strip, wherein one end of the front cross strip is hinged with the seat cushion, and the other end of the front cross strip is hinged with the rear chassis; one end of the rear cross strip is hinged with the cushion, and the other end of the rear cross strip is hinged with the rear chassis; the seat cushion, the front cross strip, the rear cross strip and the rear chassis form a parallelogram structure, and the sliding groove is arranged on the front cross strip or the rear cross strip. Above-mentioned technical scheme provides a beta structure of seat, adopts parallelogram structure, has realized that the multiple spot supports, has guaranteed the stability of cushion, and parallelogram structure can guarantee that the cushion is parallel with the back chassis all the time, does not need manual adjustment.

Preferably, the folding chair further comprises a backrest storage box and a folding connecting rod, wherein the backrest storage box is hinged to the seat cushion, one end of the folding connecting rod is hinged to the rear cross strip, and the other end of the folding connecting rod is hinged to the backrest storage box. In the structure, the backrest storage box, the folding connecting rod, the cushion and the rear cross bar form a quadrilateral structure, so that the backrest storage box can be synchronously folded, the backrest storage box and the cushion are mutually compressed after the backrest storage box is folded, and the cushion is prevented from being directly and externally exposed and being polluted; simultaneously, have certain storing space in the back storage tank, can open and be used for the storing, can use as the suitcase after making car of riding instead of walk, the user can carry luggage under the state of zero burden.

Preferably, the bottom of the backrest storage box is provided with universal wheels, after the scooter is folded, the universal wheels are contacted with the ground, and the rear wheels of the scooter are suspended; the front end of the front chassis is provided with universal wheels, after the scooter is folded, the universal wheels are contacted with the ground, and the front wheels of the scooter are suspended. The universal wheel can be folded as the wheel of suitcase after the car of riding instead of walk, realizes the removal of all directions, and the person of facilitating the use drags the line. Simultaneously, expand with folding whole in-process at the car of riding instead of walk, can guarantee all the time with the wheel or the universal wheel of ground contact for the car of riding instead of walk, avoid other structures direct and ground contact to cause wearing and tearing, also avoid other structures direct and ground contact card to die, influence folding and open, the folding of assurance with open smooth and easy.

Preferably, a pedal storage box is arranged on the front chassis. Certain storing space has in the footboard storage tank, can open and be used for the storing, increases the storing space of car of riding instead of walk, and can get into the space between two footboard storage tanks after the locomotive is folding, makes the whole appearance structure after the car of riding instead of walk more pleasing to the eye, and is more level and more smooth.

Preferably, the front chassis is provided with an elastic lock catch, the rear chassis is provided with a lock head, and the elastic lock catch and the lock head are locked when the scooter is folded. Locking structure can lock the vehicle after the car of riding instead of walk, guarantees fold condition's stability.

Preferably, the elastic lock catch comprises a lock hook, a lock rod and an elastic pressing piece, the lock hook is matched with the lock head, one end of the lock rod is connected with the elastic pressing piece, and the other end of the lock rod is connected with the lock hook. Locking structure can lock the vehicle after the car of riding instead of walk, guarantees fold condition's stability. When needing the unblock, press elasticity pressing piece, elasticity pressing piece drives locking lever and latch hook and removes, and the tapered end is unblock, and folding car can expand.

Preferably, the vehicle head comprises a bogie, a front wheel, a sleeve, a movable pipe, a handlebar and a battery assembly, the bogie is hinged to the front chassis, the front wheel is fixed to the lower end of the sleeve, the sleeve is rotatably connected with the bogie, the sleeve is sleeved on the outer side of the movable pipe and is in sliding connection with the movable pipe, the handlebar is fixed to the upper end of the movable pipe, and the battery assembly is fixed to the sleeve. The head is also provided with a driving structure of the scooter for driving the front wheel to rotate.

Preferably, battery pack includes battery case and battery body, is equipped with the battery on the battery case and holds the chamber, and the one end setting of battery body holds the intracavity at the battery, battery body and battery case joint. The quick connection of battery body and battery case can be realized to above-mentioned structure, can dismantle the battery body alone and charge, and convenient replacement is used.

The invention has the beneficial effects that: (1) the scooter has simple integral structure, stable structure, small integral weight and convenient carrying; (2) the integral folding and unfolding of the scooter can be realized only by one driving mechanism, and the driving mechanism is simple; (3) the folding and unfolding processes of the scooter are smooth, and the noise is low; (4) after being folded, the scooter can be used as a luggage case, and a user can carry luggage under the state of zero burden; (5) the folding of the scooter has a sequence, so that the seat is ensured to be folded first, and the phenomenon that the scooter overturns due to unbalance of the gravity center in the folding process is prevented; (6) the chair has self-locking force after being folded; (7) the buffer spring increases the stability of the unfolded front bottom disc and the unfolded rear bottom disc, and the movable gap between the unfolded front bottom disc and the unfolded rear bottom disc is used as a buffer space, so that the buffer performance and the comfort of the scooter are increased, and meanwhile, the scooter is far away from a dead point, so that the scooter can be quickly folded; (8) can dismantle the battery body alone and charge, make things convenient for the replacement to use.

Drawings

FIG. 1 is a schematic view of the present invention in its expanded configuration;

FIG. 2 is a schematic view of another angle of the present invention;

FIG. 3 is a schematic diagram of the present invention in a folded intermediate state;

FIG. 4 is a schematic view of the folded configuration of the present invention;

FIG. 5 is a schematic structural view of example 5;

FIG. 6 is a schematic view of the folded scooter of embodiment 5;

fig. 7 is a schematic structural view of the elastic lock catch and the lock head.

In the figure: the vehicle-mounted type seat comprises a vehicle head 1, a bogie 1.1, front wheels 1.2, a sleeve 1.3, a movable tube 1.4, a handlebar 1.5, a battery assembly 1.6, a battery case 1.6.1, a battery body 1.6.2, an elastic pad 1.6.4, a front chassis 2, a rear chassis 3, a rear wheel 3.1, a seat 4, a cushion 4.1, a front cross strip 4.2, a rear cross strip 4.3, a first connecting rod 5, a second connecting rod 6, a driving mechanism 7, a backrest storage box 8, a folding connecting rod 9, an armrest 10, a universal wheel 11, a pedal storage box 12, a telescopic pull rod 13, a buffer spring 14, a sliding rod 17, a sliding groove 18, an elastic lock catch 19.1, a lock rod 19.2, an elastic pressing piece 19.3 and a lock head 20.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1 and 2, the folding scooter comprises a scooter head 1, a front chassis 2, a rear chassis 3 and a seat 4, wherein the scooter head 1 is hinged with the front chassis 2, the front chassis 2 is hinged with the rear chassis 3, the seat 4 is hinged with the rear chassis 3, the folding scooter further comprises a first connecting rod 5, a second connecting rod 6 and a driving mechanism 7, one end of the driving mechanism 7 is hinged with the front chassis 2, the other end of the driving mechanism 7 is hinged with the rear chassis 3, one end of the first connecting rod 5 is hinged with the lower end of the scooter head 1, and the other end of the first connecting rod 5 is hinged with the rear chassis 3; one end of the second connecting rod 6 is hinged with the front chassis 2, and the other end of the second connecting rod 6 is hinged with the seat 4; the hinge point of the first connecting rod 5 and the vehicle head 1 is lower than the hinge point of the vehicle head 1 and the front chassis 2; the driving mechanism 7 is an electric push rod; the second connecting rod 6 is a gas spring.

The seat 4 comprises a seat cushion 4.1, a front cross strip 4.2 and a rear cross strip 4.3, one end of the front cross strip 4.2 is hinged with the seat cushion 4.1, and the other end of the front cross strip 4.2 is hinged with the rear chassis 3; one end of the rear cross strip 4.3 is hinged with the cushion 4.1, and the other end of the rear cross strip 4.3 is hinged with the rear chassis 3; the cushion 4.1, the front cross strip 4.2, the rear cross strip 4.3 and the rear chassis 3 form a parallelogram structure, and one end of the front cross strip 4.2 or one end of the rear cross strip 4.3 is hinged with one end of the second connecting rod 6.

In the above technical solution, as shown in fig. 3 and 4, when the scooter needs to be folded, the driving mechanism 7 is contracted, the front chassis 2 and the rear chassis 3 start to be folded, the hinge point is relatively lifted upwards, at this time, one end of the first connecting rod 5 is extruded by the rear chassis 3 and moves to one side of the head 1, and the head 1 starts to be folded after being extruded; one end of the second connecting rod 6 is extruded by the front chassis 2 to move to the other side, and the seat 4 is extruded to start folding; at the initial stage of folding, the second connecting rod 6 is extruded, and because the seat 4 is not subjected to other external forces at this time, the second connecting rod 6 can push the seat 4 to be folded quickly, after the front chassis 2 and the rear chassis 3 are folded at a certain angle, the seat 4 is folded, and the seat 4 is tightly attached to the rear chassis 3; then the front chassis 2 and the rear chassis 3 are continuously folded, at the moment, the second connecting rod 6 cannot move to the other side, the second connecting rod 6 is stressed and compressed, the seat 4 is always pressed on the rear chassis 3, and other structures are continuously folded. When the driving mechanism 7 is retracted to the proper position, the vehicle head 1, the front chassis 2, the rear chassis 3 and the seat 4 are all folded to the proper position. When deployment is required, the drive mechanism 7 is extended outwardly. Above-mentioned technical scheme has realized the car of riding instead of walk wholly through a actuating mechanism 7 and has folded, because drive structure and folding simple, makes whole car of riding instead of walk lighter, can realize the folding and the key expansion of a key of car of riding instead of walk through extension and the shrink of control actuating mechanism 7 simultaneously, and is folding convenient with the expansion, efficient. Above-mentioned technical scheme has still guaranteed the precedence order of folding process simultaneously, and seat 4 is folding earlier and is prevented folding in-process car gravity center unbalance of riding instead of walk, leads to the car of riding instead of walk to overturn. The seat 4 has self-locking power after folding, because the second connecting rod 6 is compressed when folding, has the power of outside extension, and this power guarantees that seat 4 can compress tightly back chassis 3 all the time, even seat 4 receives the exogenic action and also is difficult to open, has guaranteed beta structure's stability. When the scooter is in a unfolding state, the front cross strips 4.2 and the rear cross strips 4.3 are slightly inclined forwards, at the moment, the second connecting rod 6 is in a stretched limit state, even if a rider sits on the scooter, the stress of the second connecting rod 6 is still tensile force, the second connecting rod 6 cannot continue to stretch, and the stability of the unfolding structure cannot be influenced.

Example 2:

as shown in fig. 1 and 2, on the basis of embodiment 1, the folding chair further comprises a backrest storage box 8 and a folding connecting rod 9, wherein the backrest storage box 8 is hinged to the seat cushion 4.1, one end of the folding connecting rod 9 is hinged to the rear cross strip 4.3, and the other end of the folding connecting rod 9 is hinged to the backrest storage box 8. The backrest storage box 8 is provided with armrests 10 and a telescopic pull rod 13, and the armrests 10 are hinged with the backrest storage box 8; the bottom of the backrest storage box 8 is provided with universal wheels 11, when the scooter is folded, the universal wheels 11 are contacted with the ground, and the rear wheels of the scooter are suspended. The front end of the front chassis 2 is provided with a universal wheel 11, when the electric scooter is folded, the universal wheel 11 is contacted with the ground, and the front wheel 1.2 of the scooter is suspended. The front chassis 2 is provided with a pedal storage box 12.

In the structure, the backrest storage box 8, the folding connecting rod 9, the cushion 4.1 and the rear cross strip 4.3 form a quadrilateral structure, so that the backrest storage box 8 can be synchronously folded, the backrest storage box 8 and the cushion 4.1 are mutually compressed after being folded, and the cushion 4.1 is prevented from being directly exposed and polluted; meanwhile, certain storage space is arranged in the backrest storage box 8 and the pedal storage box 12, the backrest storage box and the pedal storage box can be opened for storing articles, so that the scooter can be used as a luggage box after being folded, and a user can carry luggage under a zero-load state. The universal wheels 11 are contacted with the ground, and the front wheels 1.2 of the scooter are suspended. The universal wheels 11 can be folded as the wheels of the luggage case after the scooter, so that the movement in all directions is realized, and the user can conveniently drag the scooter. Simultaneously, expand with folding whole in-process at the car of riding instead of walk, can guarantee all the time with the wheel or the universal wheel 11 of ground contact for the car of riding instead of walk, avoid other structures direct and ground contact to cause wearing and tearing, also avoid other structures direct and ground contact card to die, the influence is folding and open, the folding of assurance with open smoothly.

Example 3:

as shown in fig. 1 and 2, based on embodiment 1, the vehicle seat further includes a buffer spring 14, where the buffer spring 14 is a gas spring, one end of the buffer spring 14 is hinged to the front chassis 2, and the other end of the buffer spring 14 is hinged to the rear chassis 3. When the scooter is unfolded, a buffer included angle exists between the telescopic direction of the buffer spring 14 and the telescopic direction of the driving mechanism 7.

When the scooter is unfolded, the driving mechanism 7 is in a completely extended state, the driving mechanism 7 is almost parallel to the front chassis 2 and the rear chassis 3, at the moment, even if the driving mechanism 7 changes a small length, the front chassis and the rear chassis 3 can rotate by a large angle, and due to the existence of manufacturing errors and installation errors, the driving mechanism 7 is difficult to control the stability of the relative positions of the front chassis 2 and the rear chassis 3, and the front chassis and the rear chassis 3 are easy to rotate relatively. The buffer spring 14 can solve the problem, and the movable gap between the front chassis and the rear chassis 3 when the front chassis and the rear chassis are unfolded is used as a buffer space, so that the buffer performance and the comfort of the scooter are improved. Simultaneously, when the car of riding instead of walk expandes, actuating mechanism 7 has a dead point, and the extension line of actuating mechanism 7's contractile force passes through the pin joint of preceding chassis 2 with rear chassis 3 promptly, and during folding, if the car of riding instead of walk just in time at this dead point, actuating mechanism 7 may be died by the card, can't realize folding fast, and buffer spring 14 can guarantee when not having the passenger on seat 4, and the certain distance is close to each other with rear chassis 3 at the bottom of the pulling, makes the car of riding instead of walk keep away from this dead point, guarantees that the car of riding instead of walk can fold fast.

Example 4:

as shown in fig. 1, based on embodiment 1, the vehicle head 1 includes a bogie 1.1, a front wheel 1.2, a sleeve 1.3, a movable tube 1.4, a handlebar 1.5 and a battery assembly 1.6, the bogie 1.1 is hinged to the front chassis 2, the front wheel 1.2 is fixed to the lower end of the sleeve 1.3, the sleeve 1.3 is rotatably connected to the bogie 1.1, the sleeve 1.3 is sleeved on the outer side of the movable tube 1.4 and slidably connected to the movable tube 1.4, the handlebar 1.5 is fixed to the upper end of the movable tube 1.4, and the battery assembly 1.6 is fixed to the sleeve 1.3. The head 1 is also provided with a driving structure of the scooter for driving the front wheel 1.2 to rotate. The battery component 1.6 comprises a battery case 1.6.1 and a battery body 1.6.2, wherein the battery case 1.6.1 is provided with a plurality of battery accommodating cavities, and one of the battery accommodating cavities is internally provided with a joint electrically connected with an electric control system; one end of the battery body 1.6.2 is arranged in the battery accommodating cavity, and the battery body 1.6.2 is clamped with the battery shell 1.6.1. The open end of the battery accommodating cavity is provided with an elastic pad 1.6.4, an elastic pad 1.6.4 is fixed with the battery case 1.6.1, and an elastic pad 1.6.4 is tightly attached to the battery body 1.6.2.

Above-mentioned structure can realize battery body 1.6.2 and battery case 1.6.1's quick connection, can dismantle alone battery body 1.6.2 and charge, makes things convenient for the replacement to use.

Example 5:

as shown in fig. 5 and 6, the folding scooter comprises a scooter head 1, a front chassis 2, a rear chassis 3 and a seat 4, wherein the scooter head 1 is hinged with the front chassis 2, the front chassis 2 is hinged with the rear chassis 3, the seat 4 is hinged with the rear chassis 3, and the folding scooter further comprises a first connecting rod 5, a second connecting rod 6 and a sliding rod 17.

The seat 4 comprises a seat cushion 4.1, a front cross strip 4.2 and a rear cross strip 4.3, one end of the front cross strip 4.2 is hinged with the seat cushion 4.1, and the other end of the front cross strip 4.2 is hinged with the rear chassis 3; one end of the rear cross strip 4.3 is hinged with the cushion 4.1, and the other end of the rear cross strip 4.3 is hinged with the rear chassis 3; the cushion 4.1, the front cross strip 4.2, the rear cross strip 4.3 and the rear chassis 3 form a parallelogram structure. The front cross strip 4.2 is provided with a sliding groove 18, one end of the sliding rod 18 can slide along the sliding groove 18, the sliding rod 17 can rotate around the end, the other end of the sliding rod 17 is hinged with one end of the second connecting rod 6, and the other end of the second connecting rod 6 is hinged with the front chassis 2.

One end of the first connecting rod 5 is hinged with the lower end of the vehicle head 1, and the other end of the first connecting rod 5 is hinged with the rear chassis 3; the first connecting rod 5 and the hinged point of the vehicle head 1 are lower than the hinged point of the vehicle head 1 and the front chassis 2.

In the above technical solution, as shown in fig. 3 and 4, when the scooter needs to be folded, the front chassis 2 and the rear chassis 3 start to be folded manually or by using a driving member, a hinge point of the two is relatively lifted upwards, at this time, one end of the first connecting rod 5 is extruded by the rear chassis 3 and moves to one side of the head 1, and the head 1 starts to be folded by extrusion force; one end of the second connecting rod 6 is extruded by the front chassis 2 to move to the other side, the second connecting rod 6 pushes one end of the sliding rod 17, the other end of the sliding rod 17 slides along the sliding groove 18 and drives the front cross strip 4.2 to rotate, and the seat 4 is folded. When the driving mechanism 7 is retracted to the proper position, the vehicle head 1, the front chassis 2, the rear chassis 3 and the seat 4 are all folded to the proper position. When the front chassis 2 and the rear chassis 3 need to be unfolded, the front chassis and the rear chassis are unfolded.

Example 6:

as shown in fig. 5 and 6, on the basis of embodiment 5, an elastic latch 19 is arranged on the front chassis, a lock 20 is arranged on the rear chassis, and when the scooter is folded, the elastic latch 19 is locked with the lock 20. The elastic lock catch comprises a lock hook 19.1, a lock rod 19.2 and an elastic pressing piece 19.3, the lock hook 19.1 is matched with the lock head 20, one end of the lock rod 19.2 is connected with the elastic pressing piece 19.3, and the other end of the lock rod 19.2 is connected with the lock hook 19.1. Locking structure can lock the vehicle after the car of riding instead of walk, guarantees fold condition's stability. When the foldable bicycle needs to be unlocked, the elastic pressing piece 19.3 is pressed, the elastic pressing piece 19.3 drives the lock rod 19.2 and the lock hook 19.1 to move, the lock head 20 is unlocked, and the foldable bicycle can be unfolded.

Example 7:

as shown in fig. 5 and 6, in addition to embodiment 5, the present invention further includes a driving mechanism 7 and a buffer spring 14, wherein one end of the driving mechanism 7 is hinged to the front chassis 2, and the other end of the driving mechanism 7 is hinged to the rear chassis 3. Referring to fig. 2, the buffer spring 14 is a gas spring, one end of the buffer spring 14 is connected to the front chassis 2, the other end of the buffer spring 14 is connected to the rear chassis 3, and when the scooter is folded and unfolded, a buffer included angle exists between the expansion direction of the buffer spring 14 and the expansion direction of the driving mechanism 7.

Claims

1. A portable folding scooter comprises a scooter head, a front chassis, a rear chassis and a seat, wherein the scooter head is hinged with the front chassis, the front chassis is hinged with the rear chassis, and the seat is hinged with the rear chassis; the seat is provided with a sliding chute, one end of the sliding rod can slide along the sliding chute and can rotate around the end, and the other end of the sliding rod is hinged with one end of the second connecting rod; the other end of the second connecting rod is hinged with the front chassis; the device also comprises a driving mechanism, wherein one end of the driving mechanism is hinged with the front chassis, and the other end of the driving mechanism is hinged with the rear chassis; the scooter is characterized by also comprising a buffer spring, wherein one end of the buffer spring is connected with the front chassis, the other end of the buffer spring is connected with the rear chassis, and when the scooter is unfolded, a buffer included angle is formed between the telescopic direction of the buffer spring and the telescopic direction of the driving mechanism; when the scooter is unfolded, the driving mechanism is in a fully extended state, the front chassis and the rear chassis of the driving mechanism are parallel, and the scooter is in a dead point position; when no passenger is on the seat, the front chassis and the rear chassis are close to each other, and the scooter is far away from the dead point.

2. The foldable scooter of claim 1, wherein the cushioning spring is a gas spring; the second connecting rod is an air spring, when the scooter is folded, the front chassis and the rear chassis are mutually folded, a hinge point is relatively lifted upwards, the head of the scooter starts to be folded under the action of extrusion force, and the second connecting rod pushes the seat to be rapidly folded; after the front chassis and the rear chassis are folded with a set angle, the seat is tightly attached to the rear chassis, then the front chassis and the rear chassis are continuously folded, the second connecting rod is stressed and compressed, the seat is always pressed on the rear chassis, and the head of the bicycle is continuously folded.

3. A foldable walker according to claim 1 or 2 wherein said seat comprises a seat cushion, a front cross bar and a rear cross bar, the front cross bar being hinged at one end to the seat cushion and at the other end to the rear chassis; one end of the rear cross strip is hinged with the cushion, and the other end of the rear cross strip is hinged with the rear chassis; the seat cushion, the front cross strip, the rear cross strip and the rear chassis form a parallelogram structure, and the sliding groove is arranged on the front cross strip or the rear cross strip.

4. The foldable scooter of claim 3 further comprising a back storage compartment and a folding link, wherein the back storage compartment is hinged to the seat cushion, one end of the folding link is hinged to the rear cross bar, and the other end of the folding link is hinged to the back storage compartment.

5. The foldable scooter according to claim 4, wherein the bottom of the backrest storage box is provided with universal wheels, after the scooter is folded, the universal wheels are in contact with the ground, and the rear wheels of the scooter are suspended; the front end of the front chassis is provided with universal wheels, after the scooter is folded, the universal wheels are contacted with the ground, and the front wheels of the scooter are suspended.

6. The foldable scooter according to claim 1 or 2, wherein the front chassis is provided with a pedal storage compartment.

7. The portable folding scooter as claimed in claim 1, wherein the front chassis is provided with a resilient latch and the rear chassis is provided with a locking head, the resilient latch and the locking head are locked when the scooter is folded.

8. The portable folding scooter as claimed in claim 7, wherein the elastic latch comprises a latch hook, a lock lever and an elastic pressing member, the latch hook is adapted to the lock head, one end of the lock lever is connected to the elastic pressing member, and the other end of the lock lever is connected to the latch hook.