CN111481913A - Electric scooter and body thereof - Google Patents

Abstract

The invention relates to an electric scooter and a scooter body thereof, wherein the scooter body comprises a first pedal platform and a second pedal platform which are fixedly connected with each other, the two pedal platforms are taken as a whole and comprise a support frame, an upper cover and a lower cover which are wrapped outside the support frame, a cavity for mounting an electric part is formed between the upper cover and the lower cover, and the support frame and the lower cover are independently arranged or integrated. The invention designs the vehicle body into the form of the upper cover, the lower cover and the supporting frame, and uses the supporting frame for bearing the vehicle body, thus reducing the strength requirement of the upper cover and the lower cover, being beneficial to reducing the cost, and in addition, the cavity between the upper cover and the lower cover is convenient for the component to be arranged inside, and especially, the stress sensing device is convenient to be arranged between the upper cover and the supporting frame, thus changing the installation mode of the traditional stress sensing device, avoiding the influence of the supporting force, the suspension force and the like of the wheel assembly on the slide plate surface, and improving the sensitivity, stability and accuracy of the sensing of the stress sensing device.

Description

Electric scooter and body thereof

Technical Field

The invention relates to the technical field of scooters, in particular to an electric scooter and a scooter body thereof.

Background

Among the prior art, no pole electric skateboard moves ahead, the brake, retreat, control the state that generally adopts one or more sensor cooperation to detect the slide such as turn, then realize the aforesaid through the control of controller to the wheel and control, and the sensor that the scooter adopted, especially pressure sensor generally sets up between skateboard face and front and back wheel support, also there is the setting on the shaft support, do not need great change original skateboard face structural design like this, moreover, the steam generator is convenient to install additional, but such pressure sensor acquires user's motion gesture on the slide through the stress variation of sensing skateboard face, belong to indirect sensing, the skateboard face receives in addition wheel subassembly holding power and hangs influence such as strength and often can lead to the not sensitive accurate of pressure sensing.

The pressure sensor is also arranged below the pedal on the surface of the skateboard, but the structure is complex and high in cost, the installation of the pressure sensor is difficult, the sensitivity is easy to influence, and a proper skateboard structure is not available at present.

Chinese patent for CN201620040433.4 discloses a self-balancing electric scooter, this scooter has adopted pressure sensor and gyroscope, the controller is located the middle part of footboard with the gyroscope, first pressure sensor is located the footboard of both sides around the controller with second pressure sensor, but in this patent and for disclosing the concrete structure of footboard, if directly bury pressure sensor and gyroscope in the footboard, need slot to the footboard, will reduce the influence to footboard bulk strength as far as possible simultaneously, the difficult realization of this scheme, and the cost is higher.

Disclosure of Invention

In order to solve the above-mentioned problems, a first object of the present invention is to provide a vehicle body of an electric scooter with easy built-in parts and low production cost, and a second object of the present invention is to provide an electric scooter with more sensitive operation.

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

electric scooter's automobile body, including mutual fixed connection's first pedal platform and second pedal platform, two pedal platform is as a whole, including support frame and parcel upper cover and the lower cover in the support frame outside, forms the cavity of installation electric component between upper cover and the lower cover, the support frame sets up or fuses as an organic wholely with the lower cover is independent.

As a preferred scheme, the upper cover is fixed on the support frame, and the lower cover is fixedly connected with the upper cover; or the upper cover and the lower cover are respectively fixedly connected with the support frame.

Preferably, the upper cover is an integrally formed plastic part and comprises a front pedal part and a rear pedal part, the front pedal part and the rear pedal part are connected through a middle part, and the middle part of the upper cover is arched upwards so as to form a middle accommodating space below the upper cover.

As the preferred scheme, the lower cover is the working of plastics of integrated into one piece, and the lower cover is fixed in the below of support frame, upper cover and lower cover fixed connection.

Preferably, the middle part of the lower cover protrudes downwards to form a lower accommodating space, and the lower cover is further provided with a line card.

Preferably, the front part and/or the rear part of the support frame are/is provided with a base plate, and the base plate and the support frame are integrally formed or fixedly connected.

Preferably, the support frame is of an integrally formed tubular structure and is made of aluminum section bars.

As a preferred scheme, the front part of the pedal platform is provided with an anti-collision strip, two sides of the pedal platform are provided with lateral lamps, and the middle part of the pedal platform is also provided with a lamp post.

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

the electric scooter comprises the scooter body and a wheel assembly arranged below the scooter body, wherein a stress sensing device is fixed in a cavity formed between an upper cover and a lower cover, the stress sensing device is at least two pressure sensors and is respectively arranged between a support frame and the upper cover corresponding to a first pedal platform and a second pedal platform, a control device and a power supply are also arranged in the scooter body, and the power supply is arranged between the support frame and the lower cover or between the support frame and the upper cover; the control device is arranged between the support frame and the lower cover, or the control device is arranged between the support frame and the upper cover.

Preferably, the force sensing device further includes a gyroscope sensor for sensing inclination information of the foot platform, the control device controls and drives at least two rollers of the wheel assembly to rotate at different rotation speeds according to the inclination information to realize turning, and the control device is further configured to control acceleration or deceleration of at least two rollers of the wheel assembly according to the pressure information detected by the force sensing device.

The invention designs the vehicle body into the form of the upper cover, the lower cover and the supporting frame, and uses the supporting frame for bearing the vehicle body, thus reducing the strength requirement of the upper cover and the lower cover, being beneficial to reducing the cost, and in addition, the cavity between the upper cover and the lower cover is convenient for the component to be arranged inside, and especially, the stress sensing device is convenient to be arranged between the upper cover and the supporting frame, thus changing the installation mode of the traditional stress sensing device, avoiding the influence of the supporting force, the suspension force and the like of the wheel assembly on the slide plate surface, and improving the sensitivity, stability and accuracy of the sensing of the stress sensing device.

Drawings

FIG. 1 is a schematic perspective view of an alternative embodiment of the present invention;

FIG. 2 is a schematic side view of an alternative embodiment of the present invention;

FIG. 3 is a schematic illustration of an exploded structure of an alternative embodiment of the present invention;

FIG. 4 is an exploded view of a rear wheel assembly of an alternate embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of an alternative embodiment of the present invention;

FIG. 6 is a cross-sectional view A-A of FIG. 2;

FIG. 7 is a cross-sectional view B-B of FIG. 2;

fig. 8 is a schematic illustration of an explosive structure according to another alternative embodiment of the present invention.

Wherein the reference numerals are as follows:

an upper cover 1; an intermediate portion 101; a footrest part 102; a lower cover 2; a lower accommodation space 201; a line card 202; a front wheel assembly 3; a front wheel pressure base 301; a universal wheel assembly 302; a rear wheel assembly 4; a center pillar screw 401; a first bracket 402; a groove 403; a large bowl-shaped gasket 404; a first elastic member 405; a nut 406; a washer 407; a drive wheel 408; a second bracket 409; a small bowl-shaped gasket 410; the second elastic member 411; a lock nut 412; a support frame 5; a backing plate 6; a pressure sensor assembly 7; a control device 8; a power supply 9; a lamp post 10; a bumper strip 11; a side light 12.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," "retained," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

For convenience of description, the horizontal direction parallel to the straight direction of the electric scooter is taken as the front-back direction, the horizontal direction perpendicular to the straight direction of the electric scooter is taken as the left-right direction, and the vertical direction perpendicular to the straight direction of the electric scooter is taken as the up-down direction.

As shown in fig. 1 to 8 electric scooter automobile body and electric scooter including this automobile body, electric scooter's automobile body includes mutual fixed connection's first pedal platform and second pedal platform, two pedal platforms are as a whole, support frame 5 and parcel are at upper cover 1 and lower cover 2 of support frame 5 outside, form the cavity of installation electric part between upper cover 1 and the lower cover 2, support frame 5 sets up or fuses as an organic whole with lower cover 2 independently.

The invention designs the vehicle body into the form of the upper cover, the lower cover and the supporting frame, and uses the supporting frame for bearing the vehicle body, thus reducing the strength requirement of the upper cover and the lower cover, being beneficial to reducing the cost, and in addition, the cavity between the upper cover and the lower cover is also convenient for the component to be arranged inside, and especially, the stress sensing device is convenient to be arranged between the upper cover and the supporting frame, thus changing the installation mode of the traditional stress sensing device, avoiding the influence of the supporting force, the suspension force and the like of the wheel assembly on the slide plate surface, and improving the sensitivity, the stability and the accuracy of the induction of the stress sensing device.

The electric scooter shown in fig. 1 to 8 comprises the scooter body and a wheel assembly installed below the scooter body, wherein a stress sensing device is fixed in a cavity formed between an upper cover 1 and a lower cover 2, the stress sensing device is at least two pressure sensors 7 respectively arranged between a support frame 5 and the upper cover 1 corresponding to a first pedal platform and a second pedal platform, a control device 8 and a power supply 9 are further arranged in the scooter body, the power supply 9 is installed between the support frame 5 and the lower cover 2, or the power supply 9 is installed between the support frame 5 and the upper cover 1; the control device 8 is arranged between the support frame 5 and the lower cover 2, or the control device 8 is arranged between the support frame 5 and the upper cover 2; the upper cover 1 is an integrally formed plastic piece and comprises a front pedal component 102 and a rear pedal component 102, and a stress sensing device is arranged between the support frame 5 of the pedal platform and the pedal components 102 and is used for detecting stress information of corresponding pedal areas; the stress information includes pressure information; the pedal part is positioned at the upper part of the support frame 5, and the control device 8 is connected with the stress sensing device and is used for controlling the movement of the wheel assembly according to the detected stress information; and the power supply 9 is electrically connected with the stress sensing device and the control device 8.

Set up atress sensing device between pedal platform's support frame and pedal part, the user stands on pedal part, exert pressure to pedal part and cause pedal part's motion or deformation, and then make atress sensing device sensing to pressure information, wheel subassembly is located pedal platform below simultaneously, be located the below of support frame promptly, wheel subassembly can not lead to the fact the influence to atress sensing device by the power that suspension transmitted for the support frame when the motion to the holding power of support frame and wheel subassembly, the event makes atress sensing device work more stable, the accuracy of atress sensing device response has been improved, and then the sensitivity of electric scooter control has been improved.

The electric scooter comprises a first pedal platform and a second pedal platform which are fixedly connected with each other, the first pedal platform and the second pedal platform are not relatively changed in position and can be considered to be fixedly connected with each other, in this example, the first pedal platform and the second pedal platform are integrally formed and share a support frame, in order to enable the motion posture sensing of a user on the electric scooter to be more accurate, at least two stress sensing devices are arranged between the support frames 5 and the pedal parts of the first pedal platform at the front part and the second pedal platform at the rear part respectively, the control device receives pressure information detected by the two stress sensing devices of the first pedal platform and the second pedal platform and then makes a difference value for the two pressure information to control the motion of the wheel assembly, for example, when the pressure value corresponding to the pressure information at the front part of the pedal platform is larger than the pressure value corresponding to the pressure information at the rear part of the pedal platform, that is, the difference between the two pressure information is greater than 0, the wheel assembly is accelerated, otherwise, the wheel assembly is decelerated.

The force sensing device is a plate-shaped or sheet-shaped pressure sensor 7, and the pressure sensor 7 comprises two end parts for sensing pressure information and a connecting part for connecting the two end parts, and the connecting part is fixed on the support frame 5 or at the bottom of the pedal part.

In one example, the first foot platform at the front includes a first pressure sensor including a first end and a second end, and the first foot platform at the rear includes a second pressure sensor including a third end and a fourth end. The first end part and the second end part are respectively used for sensing front pressure and rear pressure of the front foot, the third end part and the fourth end part are respectively used for sensing front pressure and rear pressure of the rear foot, the controller is used for controlling the running state of the scooter according to a first difference value of the front pressure and the rear pressure of the front foot as pressure information of the first pedal platform and a second difference value of the front pressure and the rear pressure of the rear foot as pressure information of the second pedal platform, and the difference value between the two pieces of pressure information (namely the first difference value and the second difference value) comprises turning, accelerating or decelerating.

In this example, the operation of the scooter is controlled according to the small change in the front and rear foot pressures, and the operation mode of the non-manual control and the non-leg control can be realized, and the control sensitivity is improved.

The first end portion and the second end portion may be arranged in parallel in the left-right direction or in the front-rear direction, and the third end portion and the fourth end portion may be arranged in parallel in the left-right direction or in the front-rear direction. The device can adapt to different standing postures of users, and improves the accuracy of control. Specifically, the connecting parts of the two pressure sensors 7 are respectively fixed on the backing plates 6 arranged at the front part and the rear part of the support frame 5, the two end parts of the pressure sensors 7 exceed the left end and the right end of the backing plates and are at least partially suspended, and the positions of the bottom of the upper cover corresponding to the left end part and the right end part of the pressure sensors 7 can be provided with the pressing parts which are used for being abutted to the pressure sensors 7 to transfer pressure. Thus, the left end and the right end can respectively sense different pressure information according to different forces of the front foot and the rear foot, namely, the two ends of each sensor of the front sensor and the rear sensor are equivalent to two sensing areas or equivalent to two sub-sensors, and at the moment, the two sub-sensors in different positions are equivalent to respectively test different forces of the front sole and the rear sole of the front foot or the rear foot and the heel of the rear foot.

In other embodiments, each pressure sensor can also be configured to sense a small deformation or displacement of the footrest member relative to the support frame as a whole (i.e., the entire pressure sensor is a sensing area). In other embodiments, each pressure sensor may have only one sensing region, or more than two sensing regions.

As shown in fig. 3, 6 and 7, the front and the back of the foot platform are provided with the pressure sensors, and each pressure sensor has two sensing areas, namely, the pressure sensors are distributed at the left and the right sides of the lower part of the foot platform and approximately correspond to the positions of the front sole and the rear heel, so that the force of the user can be accurately detected by the pressure sensors no matter the user uses the sole or the heel to exert force, the detection area of the pressure sensors is wider, the pressure sensors are more consistent with the common posture of the user, and the defect that the operation is not sensitive enough or even cannot be triggered because the user does not exert force in the sensing areas is overcome.

In other embodiments, the pressure applying portion may be one or more of a block, a bar, a bump, a column, a cone, and other shapes that can transmit a force.

The above-mentioned supporting frame 5 may be a structure as shown in fig. 3, or may be a structure as shown in fig. 8; in an alternative embodiment shown in fig. 3, the support frame 5 is an integrally formed tubular structure, which makes the vehicle body more stable; in other embodiments, the supporting frame may be an integrally formed plate-shaped structure, a rod-shaped structure, a tubular structure, a block-shaped structure, a cylindrical structure, or a cover structure, or may be a structure that is directly fixed or indirectly fixed and connected into a whole after being formed separately, and the supporting frame may be hidden inside the pedal platform, or may be wholly or partially exposed outside the pedal platform, for example, a lower cover of the pedal platform is used as the supporting frame, that is, the supporting frame 5 and the lower cover 2 shown in fig. 8 are integrated, or a part of the supporting frame is exposed out of an upper cover or a lower cover of the pedal platform.

Above-mentioned support frame for the automobile body bearing reduces to some extent to the intensity requirement of upper cover and lower cover like this, and is also convenient for design into upper cover, support frame and lower cover three layer construction with original holistic pedal platform structure, and is with low costs, the part installation of being convenient for.

In the embodiment, the support frame 5 is made of aluminum section, so that the cost is low and the processing is convenient.

The support is preferably made of metal. The metal material rigidity support performance is good, not only can install each part fixed to can effectively ensure the power explosion-proof, improve the security. The metal material is preferably an aluminum material.

In other embodiments, all or part of the support frame may be a rigid component made of metal, or may be made of non-metallic materials with certain rigidity, such as wood, plate, rigid plastic, etc. The support frame may be formed in one step, or may be formed through multiple processes, such as turning, milling, grinding, drawing, welding, and the like.

In order to facilitate the improvement of the supporting effect of the supporting frame 5 and the installation of the stress sensing device, the supporting frame 5 is provided with a backing plate 6 relative to the front part and/or the rear part of the electric scooter, and the stress sensing device is fixed on the backing plate 6. The backing plate 6 is integrally formed with the support frame 5 or is fixedly connected directly or indirectly via other rigid components.

The pedal platform also comprises an upper cover 1 and a lower cover 2 which are wrapped outside the support frame for the purposes of decoration and covering and protecting internal parts; the pedal part is a plastic piece which is integrally formed with the upper cover 1 of the vehicle body, and the support frame 5 and the lower cover 2 are independently arranged or integrated;

when the support frame 5 and the lower cover 2 are independently arranged, the upper cover 1 is an integrally formed plastic piece, and includes a front pedal part 102 and a rear pedal part 102, and the two pedal parts 102 are connected through a middle part 101. The upper cover 1 is fixed on the support frame 5, and the lower cover 2 is fixedly connected with the upper cover 1; or the upper cover 1 and the lower cover 2 are respectively fixedly connected with the support frame 5.

The lower cover 2 of the vehicle body is an integrally formed plastic piece, the lower cover 2 is fixed below the support frame 5, the upper cover 1 is fixedly connected with the lower cover 2, and the power supply 9 is arranged between the support frame 5 and the lower cover 2, or the power supply 9 is arranged between the support frame 5 and the upper cover 1; the control device 8 is installed between the support frame 5 and the lower cover 2, or the control device 8 is installed between the support frame 5 and the upper cover 2.

In a preferred embodiment, the middle part 101 of the upper cover 1 is arched upwards so that an intermediate accommodation space is formed below the middle part 101, in which the control device 8 is accommodated and fixed above the support frame 5. The middle of the lower cover 2 protrudes downwards to form a lower accommodating space 201, the power supply 9 is fixed in the lower accommodating space 201 of the lower cover 2, and a wire clip 202 is further provided on the lower cover 2. Therefore, the structure is simple and reasonable, the assembly of each part is convenient, and the wiring debugging is also convenient.

When the support 5 is integrated with the lower cover 2, as shown in fig. 8, the lower cover does not have a separate part of the skeleton type that is clearly visible, so that the function of the above-mentioned support is performed by the lower cover, or by a rigid support part in the lower cover. The lower cover is integrally formed by metal or other materials with certain supporting rigidity. At this time, the power supply 9 and the control device 8 are installed between the upper cover 1 and the lower cover 2.

In another embodiment, a plurality of rigid reinforcing members are provided in the lower cover, so that the lower cover includes a main frame portion for vehicle body load bearing and an appearance portion exposed to the outer surface of the vehicle body. The main frame part and the appearance part can be integrally formed by the same material, such as a metal material, or can be integrally formed by one-time forming, multiple forming or split assembling by adopting different materials, for example, one or more appearance parts are fixed on part or all of the exposed surface of the metal main frame part by bonding, clamping, sleeving, riveting, compounding or fastening pieces, and the appearance parts can be made of various materials such as metal, plastic, rubber or wood. Therefore, the manufacturing cost can be saved, the appearance is diversified, and the defects of high requirements on the surface processing technology of the metal material, high cost, single appearance and the like are avoided.

In the invention, an independent internal support frame or a support frame integrated with the lower cover is adopted, the upper cover is not used as a bearing part any more, and the upper cover of the vehicle body can be made of materials with lower cost, light weight and better decorative effect, such as plastic materials, etc., thereby optimizing the product structure and reducing the production cost of the product.

The upper surface of the pedal component is stuck with an anti-slip patch or an anti-slip foot pad. The pedal part is a pedal part which is connected with the upper cover 1 of the vehicle body into a whole. Thus, the installation or replacement is convenient and the cost is low.

In other embodiments, the step part may be provided with an anti-slip structure (e.g., anti-slip pattern) or an anti-slip part by molding, covering, assembling, or the like. The anti-skid component (such as an anti-skid sticker or an anti-skid foot pad) can be made of soft rubber or other materials, so that the wear resistance and the friction force of the pedal component can be increased, the use comfort of a user can be improved, and a better waterproof and dustproof effect is achieved.

The front part of the pedal platform is provided with an anti-collision strip 11, the anti-collision strip 11 is embedded between the upper cover and the lower cover, and when the electric scooter rushes forwards due to inertia and collides, the anti-collision strip 11 can play a role in buffering to protect the electric scooter from being damaged; lateral lamps 12 are arranged on two sides of the pedal platform, and the lateral lamps 12 are also embedded between the upper cover and the lower cover, so that the installation is convenient; the middle part of the pedal platform is also provided with a lamp post 10. The lamp post 10 is fixed and electrically connected with the control device 8, a through hole is arranged on the pedal platform, and the upper part of the lamp post 10 is embedded into the through hole. Side direction lamp and lamp pole homoenergetic show electric scooter's state, and the lamp pole inlays to be established at pedal platform middle part, and pedal platform middle part is the middle part that upwards arches, is difficult for trampling, better protection set up in inside electric component and lamp pole, and life is longer.

The wheel assembly comprises a first wheel assembly 3 and a second wheel assembly 4, the first wheel assembly 3 is a universal wheel, the universal wheel is arranged below the front part of the first pedal platform, and the second wheel assembly 4 is a driving wheel; the driving wheel is arranged below the rear part of the second pedal platform.

As shown in fig. 5 and 6, the first wheel assembly 3 includes a front wheel holder 301 and a universal wheel assembly 302, a rotating shaft of the universal wheel assembly 302 penetrates through the lower cover 2 and is inserted into the supporting frame 5, and the universal wheel assembly 302 is fixed on the lower cover 2 through the front wheel holder 301.

As shown in fig. 4, the second wheel assembly 4 includes two driving wheels 408, and a wheel frame connected to the at least two driving wheels 408, the driving wheels 408 are fixed at left and right ends of the wheel frame through nuts 406 and washers 407, and a wheel hub motor is disposed in the driving wheels 408, and the wheel frame includes:

a first bracket 402 fixedly connected with the lower part of the lower cover 2 and having a first limit part;

a second bracket 409 connected with the at least two driving wheels 408 and having a second limit portion, the first limit portion and the second limit portion being adapted to each other for limiting the relative swing of the first bracket 402 with respect to the second bracket 409;

a connecting member for connecting the first bracket 402 and the second bracket 409, wherein at least one movable connection part is movably connected, and a movable space is arranged between the first bracket 402 and the second bracket 409;

at least one elastic member, such as 405 shown in fig. 4, disposed in the movable space between the first bracket 402 and the second bracket 409, has a self-resetting property, and can be restored to a home position after the first bracket 402 and the second bracket 409 are relatively moved.

Specifically, the connecting member includes a center pillar screw 401 as shown in fig. 4, the number of the elastic members may be two, such as elastic members 405 and 411 sleeved on a screw rod of the bolt, and the second wheel assembly structure may be described as follows: two driving wheels 408 are fixed on the left and right of the second bracket 409, the second bracket 409 is provided with a second limiting part and a protruding shaft, the head of the protruding shaft pushes a third elastic member to be tightly pressed against a certain point on the first bracket 402, the point is a first limiting part and a groove 403 of the first bracket 402, and the first limiting part and the second limiting part are matched and used for limiting the relative swing of the second bracket 409 and the first bracket 402; meanwhile, the second bracket 409 is pressed against the first bracket 402 by the first elastic member 405 and the second elastic member 411 in front and at back, in other words, the bolt can sequentially pass through the first through hole of the first bracket 402, the first elastic member 405, the second through hole of the second bracket 409 and the second elastic member 411 to be screwed with the lock nut 412, only one of the first elastic member 405 and the second elastic member 411 can be reserved, at least part of the first elastic member 405 or the second elastic member 411 is arranged in the through hole of the second bracket 202, a large bowl-shaped gasket 404 is arranged between the first elastic member 405 and the first bracket 402, and a small bowl-shaped gasket 410 is arranged between the second elastic member 411 and the second bracket 409.

In the above alternative embodiment, the second wheel assembly is fixed under the lower cover, and the second wheel assembly has an adjustable self-resettability when the footrest platform is tilted. Specifically, when the first bracket 402 rotates or swings with respect to the second bracket 409 about the vehicle body forward direction, the screw can press the elastic member, and the elastic member can restore the first bracket and the second bracket from the swing position to the original position due to the elastic member having a certain elasticity and the property of automatic restoration. The elastic member and the connecting member are preferably, but not limited to, the connecting member may be formed by replacing a bolt and a nut with other structures capable of limiting and fixing the first bracket and the second bracket.

So set up, can realize control and trample pedal platform, control its inclination and realize the turn to the universal wheel of cooperation front wheel, turning radius is less, can be more freely when making to ride passerby and turning.

The stress device of the invention also comprises a tilt angle information gyroscope sensor used for sensing the tilt angle information of the pedal platform, the stress information also comprises tilt angle information detected by the gyroscope sensor, the control device 8 controls and drives the two driving wheels 408 of the second wheel component 4 to rotate at different rotating speeds according to the tilt angle information to realize turning, and the specific turning process is as follows: the user stands and inclines about the human focus and makes pedal platform about the slope when needing to turn on pedal platform, detects pedal platform inclination angle time control board device control two drive wheel 408 rotational speeds through the gyroscope sensor that sets up below pedal platform and realizes the differential turn differently, and preceding universal wheel still turns passively, can reduce turning radius like this, improves the practicality. And the front universal wheel can change the driving angle to realize steering after being inclined.

The control device 8 is also used for controlling the acceleration or deceleration of the two driving wheels 408 driving the second wheel assembly 4 according to the pressure information provided by the two pressure sensors 7. The specific acceleration and deceleration process is as follows: the acceleration and deceleration are controlled by comparing pressure values corresponding to the pressure information of the front foot and the pressure information of the rear foot detected by pressure sensors arranged at the front position and the rear position with reference values.

The speed control process for ascending and descending is as follows: the riding body feeling during ascending or descending is optimized by detecting the front and rear angles of the gyroscope, the difference value of the front and rear pressure information during ascending is reduced, the difference value of the front and rear pressure information during descending is increased, and the function of assisting in descending and slowly descending during ascending is realized.

It should be noted that the above embodiments are merely representative examples of the present invention. Many variations of the invention are possible. Any simple modification, equivalent change and modification of the above embodiments according to the spirit of the present invention should be considered to be within the protection scope of the present invention.

Claims (10)

1. Electric scooter's automobile body, its characterized in that: including mutual fixed connection's first pedal platform and second pedal platform, two pedal platform is as a whole, including support frame (5) and parcel upper cover (1) and lower cover (2) in support frame (5) outside, forms the cavity of installation electric component between upper cover (1) and lower cover (2), support frame (5) and lower cover (2) independent setting or fuse into an organic whole.

2. The body of the electric scooter according to claim 1, wherein the upper cover (1) is fixed on the support frame (5), and the lower cover (2) is fixedly connected with the upper cover (1); or the upper cover (1) and the lower cover (2) are respectively fixedly connected with the support frame (5).

3. The body of the electric scooter according to claim 1, wherein the upper cover (1) is a one-piece plastic member comprising a front and a rear step parts (102), the two step parts (102) are connected by a middle part (101), and the middle part (101) of the upper cover (1) is upwardly arched to form a middle receiving space thereunder.

4. The body of the electric scooter according to claim 1, wherein the lower cover (2) is an integrally formed plastic member, the lower cover (2) is fixed below the support frame (5), and the upper cover (1) is fixedly connected with the lower cover (2).

5. The body of the electric scooter according to claim 1, wherein the lower cover (2) has a middle portion protruding downward to form a lower receiving space (201), and the lower cover (2) further has a wire clip (202).

6. The electric scooter body according to claim 1, wherein the support frame (5) is provided with a pad plate (6) at the front and/or rear portion, and the pad plate (6) is integrally formed with or fixedly connected to the support frame (5).

7. The body of the electric scooter according to claim 1, wherein the support frame (5) is an integrally formed tubular structure, and the support frame (5) is made of aluminum section.

8. The electric scooter body according to claim 1, wherein the front part of the foot platform is provided with an anti-collision strip (11), the two sides of the foot platform are provided with side lights (12), and the middle part of the foot platform is further provided with a light post (10).

9. The electric scooter is characterized by comprising a scooter body according to any one of claims 1 to 8 and a wheel assembly mounted below the scooter body, wherein a cavity formed between the upper cover (1) and the lower cover (2) is internally fixed with at least two stress sensing devices, the stress sensing devices are at least two pressure sensors (7) respectively arranged between the upper cover (1) and the support frame (5) corresponding to the first pedal platform and the second pedal platform, the scooter body is also internally provided with a control device (8) and a power supply (9), the power supply (9) is mounted between the support frame (5) and the lower cover (2), or the power supply (9) is mounted between the support frame (5) and the upper cover (1); the control device (8) is arranged between the support frame (5) and the lower cover (2), or the control device (8) is arranged between the support frame (5) and the upper cover (2).

10. The electric scooter of claim 9, wherein the force sensing device further comprises a gyroscope sensor for sensing the inclination information of the footrest platform, the control device (8) controls at least two rollers of the wheel assembly to rotate at different speeds to realize turning according to the inclination information, and the control device (8) further controls acceleration or deceleration of at least two rollers of the wheel assembly according to the pressure information detected by the force sensing device.

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